See history.txt for the list of fixes.

git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@196 6ac86273-5f31-0410-b378-82cca8765d1b

config.m

@@ -8,7 +8,9 @@
 
 # These are generic definitions
 RM=..\utils\rm -f
-NASM=nasm
+
+# Give path to nasm here (or if it's in your path just uncomment the line).
+#NASM=nasm
 
 
 # Use these for Turbo C 2.01
@@ -54,6 +56,9 @@ NASM=nasm
 # $Id$
 #
 # $Log$
+# Revision 1.6  2001/04/15 03:21:49  bartoldeman
+# See history.txt for the list of fixes.
+#
 # Revision 1.5  2001/03/22 10:51:04  bartoldeman
 # Suggest to extract F_SCOPY into libm.lib for Borland C++.
 #

docs/history.txt

@@ -1,3 +1,46 @@
+2001 Apr 15 - Build 2023
+-------- Bart Oldeman (bart.oldeman@bristol.ac.uk)
++ Fixes  Tom: 
+         * apisupt.asm not necessary anymore.
+         * fix warnings.
+         * Don't allow directories to be created in DOS_CREAT.
+         * LoadDevice: drivers should not hang the computer if they fail.
+         Bart: 
+         * fixed SYS.
+         * made most calls near again, with a jump/stack trick to 
+           switch between INIT_TEXT and HMA_TEXT.
+         * INIT_TEXT now calls INT21 itself for some things (setting
+           PSP, opening/reading/closing devices and (fd)config.sys).
+         * fixed some carry handling in inthndlr.c and 
+         * drives are checked before trying to access them.
+         * fixed console driver "busy state" confusion: the built-in
+           driver had it wrong, nansi.sys had it right:
+           "If no characters in buffer, return BUSY".
+         * space savings (RTL related and various other places)
+         * redirector fixes for find_next. 
+         * CREAT on a device file failed (FD said it already existed).
+           But for some reason it should not fail in DOS.
+         * get ATTRIB/other things on a device file should return 
+           FILENOTFOUND, not PATHNOTFOUND.
+           The sft_status field is not used for redirected drives.
+         * DosSelectDrv checks the media before setting the default
+           drive.
+         * Fixed INT21/AH=3,4,5 (character R/W AUX/PRN).
+         Hans Lermen: 
+         * critical error handler destroyed AH (entry.asm).
+         Martin Stromberg
+         * find_first for volume labels fix.
+         * check drive at more places and avoid drive "@:" for drive "':".
+         * config.m: comment out NASM= by default.
+         * printf fix with DEBUG on.
++ Add    Tom: Introduce init_data segment.
+              New temp file creation implementation.
+         Bart: added INT21/AH=53. XMSDSK works fine now.
+               dynamic allocation of Drive Parameter Blocks (they are
+               all FAR now).
++ Update Bart: moved DOS_PSP to segment 0x60 as segment 0x50 is already used by
+	       GWBASIC/BASICA
+
 2001 Apr  2 - Build 2023
 -------- Bart Oldeman (bart.oldeman@bristol.ac.uk)
 + Fixes  Bart: Volkov Commander revealed a few bugs:

drivers/devend.asm

@@ -30,6 +30,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -72,7 +75,6 @@
                 %include "..\kernel\segs.inc"
 
 
-segment	_DATA	align=2 class=DATA
 	extern	__bssend:wrt DGROUP
 
 segment	HMA_TEXT
@@ -80,9 +82,6 @@ segment	HMA_TEXT
                 global  _device_end
 
 _device_end:
-                push    bp
-                mov     bp,sp
                 mov     ax,__bssend
                 mov     dx,DGROUP
-                pop     bp
                 ret

drivers/floppy.asm

@@ -30,6 +30,9 @@
 ; $Id$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -80,8 +83,13 @@
 ;Initial revision.
 ;
 
+%ifndef SYS
      %include "..\kernel\segs.inc"
-
+%else
+group   TGROUP  HMA_TEXT _TEXT 
+segment _TEXT      class=CODE
+segment HMA_TEXT   class=CODE
+%endif                               
 segment	HMA_TEXT
 
 ;

drivers/getvec.asm

@@ -30,6 +30,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -75,12 +78,8 @@ segment	HMA_TEXT
 
 		global	_getvec
 _getvec:
-                push    bp
+                mov     bx,sp
-                mov     bp,sp
+                mov     ax,[ss:bx+2]
-                mov     ax,[bp+4]
-                call    getvec
-                pop     bp
-                ret
   
 ;
 ; assembler version - ax = vector number

drivers/rdatclk.asm

@@ -60,9 +60,9 @@
 ;Initial revision.
 ;
 
-group	IGROUP	INIT_TEXT
+        %include "..\kernel\segs.inc"
 
-segment	INIT_TEXT	class=INIT
+segment	INIT_TEXT
 
 ;
 ;COUNT ReadATClock(bcdDays, bcdHours, bcdMinutes, bcdSeconds)
@@ -73,49 +73,29 @@ segment	INIT_TEXT	class=INIT
 ;
                 global  _ReadATClock
 _ReadATClock:
+                mov     ah,2
+                int     1ah
+		jnc	@RdAT1140
+		sbb	ax,ax
+                ret
+@RdAT1140:
                 push    bp
                 mov     bp,sp
-                sub     sp,byte 10
-;               Days = -6
-;               Hours = -2
-;               Minutes = -8
-;               Seconds = -10
 ;               bcdSeconds = 10
 ;               bcdMinutes = 8
 ;               bcdHours = 6
 ;               bcdDays = 4
-                mov     ah,2
-                int     26
-		jnc	@RdAT1140
-		sbb	ax,ax
-                mov     sp,bp
-                pop     bp
-                ret
-                nop
-@RdAT1140:
-                mov     byte [bp-2],ch      ;Hours
-                mov     byte [bp-8],cl      ;Minutes
-                mov     byte [bp-10],dh     ;Seconds
-                mov     ah,4
-                int     26
-                mov     word [bp-6],dx      ;Days
-                mov     word [bp-4],cx
-                mov     ax,word [bp-6]      ;Days
-                mov     dx,word [bp-4]
-                mov     bx,word [bp+4]      ;bcdDays
-                mov     word [bx],ax
-                mov     word [bx+2],dx
-                mov     al,byte [bp-2]      ;Hours
                 mov     bx,word [bp+6]      ;bcdHours
-                mov     byte [bx],al
+                mov     byte [bx],ch        ;Hours
-                mov     al,byte [bp-8]      ;Minutes
                 mov     bx,word [bp+8]      ;bcdMinutes
-                mov     byte [bx],al
+                mov     byte [bx],cl        ;Minutes
-                mov     al,byte [bp-10]     ;Seconds
                 mov     bx,word [bp+10]     ;bcdSeconds
-                mov     byte [bx],al
+                mov     byte [bx],dh        ;Seconds
+                mov     ah,4
+                int     1ah
+                mov     bx,word [bp+4]      ;bcdDays
+                mov     word [bx],dx        ;Days    
+                mov     word [bx+2],cx
                 sub     ax,ax
-                mov     sp,bp
                 pop     bp
                 ret
-                nop

drivers/rdpcclk.asm

@@ -30,6 +30,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -84,7 +87,7 @@ segment	HMA_TEXT
                 global  _ReadPCClock
 _ReadPCClock:
                 xor     ah,ah
-                int     26
+                int     1ah
 		mov	bx,sp
 		mov	bx,[bx+2]
                 mov     [bx],dx

drivers/timer.asm

@@ -30,6 +30,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -78,14 +81,11 @@ segment	HMA_TEXT
 ;
 	global	_tmark
 _tmark:
-        push    bp
-        mov     bp,sp
         xor     ah,ah
         int     01aH                    ; get current time in ticks
         xor     ah,ah
         mov     word [LastTime],dx    ; and store it
         mov     word [LastTime+2],cx
-        pop     bp
         ret
 
 
@@ -96,12 +96,11 @@ _tmark:
 _tdelay:
         push    bp
         mov     bp,sp
-        sub     sp,byte 4
         xor     ah,ah
         int     01aH                    ; get current time in ticks
         xor     ah,ah
-        mov     word [bp-4],dx      ; and save it to a local variable
+        mov     word bx,dx          ; and save it to a local variable
-        mov     word [bp-2],cx      ; "Ticks"
+                                    ; "Ticks" (cx:bx)
 ;
 ; Do a c equivalent of:
 ;
@@ -111,19 +110,16 @@ _tdelay:
         mov     dx,word [LastTime]
         add     dx,word [bp+4]
         adc     ax,word [bp+6]
-        cmp     ax,word [bp-2]
+        cmp     ax,cx            
+        mov     ax,0                    ; mov does not affect flags
         ja      short tdel_1
         jne     short tdel_2
-        cmp     dx,word [bp-4]
+        cmp     dx,bx
         ja      short tdel_1
 tdel_2:
-        mov     ax,1                    ; True return
+        inc     ax                      ; True return
-        jmp     short tdel_3
 tdel_1:
-        xor     ax,ax                   ; False return
+        pop     bp                      ; False return
-tdel_3:
-        mov     sp,bp
-        pop     bp
         ret
 
 
@@ -134,7 +130,6 @@ tdel_3:
 _twait:
         push    bp
         mov     bp,sp
-        sub     sp,byte 4
         call    _tmark                 ; mark a start
 ;
 ;       c equivalent
@@ -145,8 +140,7 @@ twait_1:
         xor     ah,ah
         int     01aH
         xor     ah,ah                           ; do GetNowTime
-        mov     word [bp-4],dx                  ; and save it to "Now"
+        mov     bx,dx                           ; and save it to "Now" (cx:bx)
-        mov     word [bp-2],cx
 ;
 ;       do comparison
 ;
@@ -154,15 +148,14 @@ twait_1:
         mov     dx,word [LastTime]
         add     dx,word [bp+4]
         adc     ax,word [bp+6]
-        cmp     ax,word [bp-2]
+        cmp     ax,cx
         jb      short twait_1
         jne     short twait_2
-        cmp     dx,word [bp-4]
+        cmp     dx,bx
         jb      short twait_1
 twait_2:
-        mov     sp,bp
         pop     bp
         ret
 
-segment	_BSS	align=2 class=BSS
+segment	_BSS
 LastTime:	resd	1

drivers/wratclk.asm

@@ -30,6 +30,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -84,28 +87,20 @@ segment	HMA_TEXT
 _WriteATClock:
                 push    bp
                 mov     bp,sp
-                sub     sp,byte 4
-;               LocalCopy = -4
 ;               bcdSeconds = 10
 ;               bcdMinutes = 8
 ;               bcdHours = 6
 ;               bcdDays = 4
-                mov     bx,word [bp+4]      ;bcdDays
-                mov     ax,word [bx]
-                mov     dx,word [bx+2]
-                mov     word [bp-4],ax      ;LocalCopy
-                mov     word [bp-2],dx
                 mov     ch,byte [bp+6]      ;bcdHours
                 mov     cl,byte [bp+8]      ;bcdMinutes
                 mov     dh,byte [bp+10]     ;bcdSeconds
                 mov     dl,0
                 mov     ah,3
-                int     26
+                int     1ah
-                mov     cx,word [bp-2]
+                mov     bx,word [bp+4]      ;bcdDays
-                mov     dx,word [bp-4]      ;LocalCopy
+                mov     dx,word [bx]
+                mov     cx,word [bx+2]
                 mov     ah,5
-                int     26
+                int     1ah
-                mov     sp,bp
                 pop     bp
                 ret
-                nop

drivers/wrpcclk.asm

@@ -30,6 +30,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -79,14 +82,10 @@ segment HMA_TEXT
 ;
                 global  _WritePCClock
 _WritePCClock:
-                push    bp
+                mov     bx,sp
-                mov     bp,sp
 ;               Ticks = 4
-                mov     cx,word [bp+6]
+                mov     cx,word [ss:bx+4]
-                mov     dx,word [bp+4]      ;Ticks
+                mov     dx,word [ss:bx+2]      ;Ticks
                 mov     ah,1
-                int     26
+                int     1ah
-                mov     sp,bp
-                pop     bp
                 ret
-                nop

hdr/cds.h

@@ -34,6 +34,9 @@ static BYTE *Cds_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.4  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.3  2000/05/25 20:56:19  jimtabor
  * Fixed project history
  *
@@ -116,4 +119,5 @@ cdstbl;
 #define CDSPHYSDRV      0x4000
 #define CDSJOINED       0x2000
 #define CDSSUBST        0x1000
+#define CDSVALID        (CDSNETWDRV | CDSPHYSDRV)
 

hdr/dcb.h

@@ -36,6 +36,9 @@ static BYTE *clock_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.4  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.3  2000/05/25 20:56:19  jimtabor
  * Fixed project history
  *
@@ -112,5 +115,6 @@ struct dpb
 
 };
 
-#define UNKNCLUSTER     0xffff  /* 0xffff = unknown for DOS     */
+#define UNKNCLUSTER      0x0000  /* see RBIL INT 21/AH=52 entry  */
+#define UNKNCLSTFREE     0xffff  /* 0xffff = unknown for DOS     */
 

hdr/device.h

@@ -35,6 +35,9 @@ static BYTE *device_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2000/05/25 20:56:19  jimtabor
  * Fixed project history
  *
@@ -448,12 +451,6 @@ typedef bpb FAR *bpbptr;
 typedef BYTE FAR *byteptr;
 typedef struct dhdr FAR *dhdrptr;
 
-/*
- *      externals
- */
-
-extern BYTE FAR *device_end();
-
 /*
  *      end of device.h
  */

hdr/fat.h

@@ -36,6 +36,9 @@ static BYTE *fat_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.6  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.5  2000/08/06 04:18:21  jimtabor
  * See history.txt
  *
@@ -117,8 +120,8 @@ static BYTE *fat_hRcsId = "$Id$";
 /* Test for 16 bit or 12 bit FAT                                        */
 #define SIZEOF_CLST16   2
 #define FAT_MAGIC       4086
-#define FAT_MAGIC16     65526
+#define FAT_MAGIC16     ((unsigned)65526l)
-#define FAT_MAGIC32     268435456
+#define FAT_MAGIC32     268435456l
 
 #define ISFAT32(dpbp)   (((dpbp)->dpb_size)>FAT_MAGIC16 || ((dpbp)->dpb_size)<=FAT_MAGIC32 )
 #define ISFAT16(dpbp)   (((dpbp)->dpb_size)>FAT_MAGIC || ((dpbp)->dpb_size)<=FAT_MAGIC16 )

hdr/fnode.h

@@ -36,6 +36,9 @@ static BYTE *fnode_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.4  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.3  2000/05/25 20:56:19  jimtabor
  * Fixed project history
  *
@@ -108,7 +111,7 @@ struct f_node
   ULONG f_diroff;               /* offset of the dir entry      */
   UWORD f_dirstart;             /* the starting cluster of dir  */
   /* when dir is not root         */
-  struct dpb *f_dpb;            /* the block device for file    */
+  struct dpb FAR *f_dpb;        /* the block device for file    */
 
   ULONG f_dsize;                /* file size (for directories)  */
   ULONG f_offset;               /* byte offset for next op      */

hdr/mcb.h

@@ -36,6 +36,9 @@ static BYTE *mcb_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.7  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.6  2000/08/06 04:27:07  jimtabor
  * See history.txt
  *
@@ -104,7 +107,7 @@ static BYTE *mcb_hRcsId = "$Id$";
 #define MCB_NORMAL      0x4d
 #define MCB_LAST        0x5a
 
-#define DOS_PSP         0x0050  /* 0x0008 What? seg 8 =0:0080 */
+#define DOS_PSP         0x0060  /* 0x0008 What? seg 8 =0:0080 */
 #define FREE_PSP        0
 
 #define MCB_SIZE(x)     ((((LONG)(x))<<4)+sizeof(mcb))

hdr/pcb.h

@@ -57,6 +57,9 @@ static BYTE *pcb_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2000/08/06 04:18:21  jimtabor
  * See history.txt
  *
@@ -128,7 +131,7 @@ xreg;
    Furthermore, the PUSH$ALL macro must push ES first and AX last.
        -- 2000/03/22 ska*/
 /* maps MS-DOS unique stacking order                                    */
-typedef struct
+typedef struct _iregss
 {
   xreg a,
     b,

hdr/portab.h

@@ -36,6 +36,9 @@ static char *portab_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.8  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.7  2001/03/21 02:56:25  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -239,3 +242,10 @@ typedef signed long LONG;
     #define FDCALL  
     #define CDECL   
 #endif
+
+#ifdef I86
+                    /* commandline overflow - removing /DPROTO
+                    TE*/
+    #define PROTO
+#endif
+

kernel/asmsupt.asm

@@ -34,6 +34,9 @@
 ; $Id$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -92,10 +95,9 @@ segment HMA_TEXT
 ;*********************************************************************
 ; this implements some of the common string handling functions
 ;
-; every function has 2 entries
+; every function has 1 entry
 ;
 ;   NEAR FUNC()
-;   FAR  init_call_FUNC()
 ;
 ; currently done:
 ;
@@ -143,13 +145,13 @@ common_setup:
                                 ; are preloaded here
                 
                 ; the destination pointer, d = arg1
-                mov             di,[bp+6]
+                mov             di,[bp+4]
 
                 ; Get the source pointer,  s = arg2
-                mov             si,[bp+8]
+                mov             si,[bp+6]
 
                 ; Get the repitition count, n = arg3
-                mov             cx,[bp+10]
+                mov             cx,[bp+8]
 
                 jmp bx
 
@@ -159,12 +161,7 @@ common_setup:
 ;       VOID memcpy(REG BYTE *s, REG BYTE *d, REG COUNT n);
 ;
                 global  _memcpy
-                global  _init_call_memcpy
 _memcpy:
-                pop ax
-                push cs
-                push ax
-_init_call_memcpy:
                 call common_setup
 
 
@@ -186,7 +183,7 @@ common_return:
                 pop     di
                 pop     si
                 pop     bp
-                retf
+                ret
 
 
 
@@ -196,23 +193,18 @@ common_return:
 ;
                 global  __fmemcpy
                 global  _fmemcpy
-                global  _init_call_fmemcpy
 _fmemcpy:
 __fmemcpy:
-                pop ax
-                push cs
-                push ax
-_init_call_fmemcpy:
                 call common_setup
 
                 ; Get the far source pointer, s
-                lds     si,[bp+10]
+                lds     si,[bp+8]
 
                 ; Get the far destination pointer d
-                les     di,[bp+6]
+                les     di,[bp+4]
 
                 ; Get the repetition count, n
-                mov     cx,[bp+14]
+                mov     cx,[bp+12]
 
 
                 jmp short domemcpy
@@ -222,23 +214,17 @@ _init_call_fmemcpy:
 ;       VOID fmemset(REG VOID FAR *d, REG BYTE ch, REG COUNT n);
 ;
                 global  _fmemset
-                global  _init_call_fmemset
 _fmemset:
-                pop ax
-                push cs
-                push ax
-_init_call_fmemset:
-
                 call common_setup
 
                 ; Get the repetition count, n
-                mov     cx,[bp+12]
+                mov     cx,[bp+10]
 
                 ; Get the far source pointer, s
-                les     di,[bp+6]
+                les     di,[bp+4]
 
                 ; Get the far destination pointer ch
-                mov     al,[bp+10]
+                mov     al,[bp+8]
                 
 domemset:                
                 mov		ah, al
@@ -255,23 +241,17 @@ domemset:
 ;       VOID memset(REG VOID *d, REG BYTE ch, REG COUNT n);
 ;
                 global  _memset
-                global  _init_call_memset
 _memset:
-                pop ax
-                push cs
-                push ax
-_init_call_memset:
-
                 call common_setup
                 
                                 ; Get the far source pointer, s
-                ; mov      di,[bp+6]
+                ; mov      di,[bp+4]
 
                 ; Get the char ch
-                mov     ax,si   ; mov al, [bp+8]
+                mov     ax,si   ; mov al, [bp+6]
 
                 ; Get the repititon count, n
-                ; mov     cx,[bp+10]
+                ; mov     cx,[bp+8]
 
                 jmp short domemset
 
@@ -281,21 +261,16 @@ _init_call_memset:
 ;***************************************************************
                 
                 global  _fstrncpy
-                global  _init_call_fstrncpy
 _fstrncpy:
-                pop ax
-                push cs
-                push ax
-_init_call_fstrncpy:
                 call common_setup
 
                 ; Get the source pointer, ss
-                lds             si,[bp+10]
+                lds             si,[bp+8]
 
                 ; and the destination pointer, d
-                les             di,[bp+6]
+                les             di,[bp+4]
 
-                mov             cx,[bp+14]
+                mov             cx,[bp+12]
                 
                 jcxz    common_return
                 ;;                 dec     cx
@@ -318,38 +293,28 @@ store_one_byte: xor al,al
 
 
                 global  _fstrcpy
-                global  _init_call_fstrcpy
 _fstrcpy:
-                pop ax
-                push cs
-                push ax
-_init_call_fstrcpy:
                 call common_setup
 
                 ; Get the source pointer, ss
-                lds             si,[bp+10]
+                lds             si,[bp+8]
 
                 ; and the destination pointer, d
-                les             di,[bp+6]
+                les             di,[bp+4]
                 
                 jmp short dostrcpy
 
 ;******
                 global  _strcpy
-                global  _init_call_strcpy
 _strcpy:
-                pop ax
-                push cs
-                push ax
-_init_call_strcpy:
                 call common_setup
 
 
                 ; Get the source pointer, ss
-                ;mov             si,[bp+8]
+                ;mov             si,[bp+6]
 
                 ; and the destination pointer, d
-                ;mov             di,[bp+6]
+                ;mov             di,[bp+4]
 
 dostrcpy:
 
@@ -364,27 +329,17 @@ strcpy_loop:
 ;******************************************************************                
                 
                 global  _fstrlen
-                global  _init_call_fstrlen
 _fstrlen:
-                pop ax
-                push cs
-                push ax
-_init_call_fstrlen:
                 call common_setup
 
                 ; Get the source pointer, ss
-                les             di,[bp+6]
+                les             di,[bp+4]
 
                 jmp short dostrlen
 
 ;**********************************************
                 global  _strlen
-                global  _init_call_strlen
 _strlen:
-                pop ax
-                push cs
-                push ax
-_init_call_strlen:
                 call common_setup
 
                 ; The source pointer, ss, arg1 was loaded as di
@@ -398,21 +353,16 @@ dostrlen:
                 not ax                
                 dec ax
 
-                jmp common_return
+                jmp short common_return
 
 ;************************************************************
                 global  _strchr
-                global  _init_call_strchr
 _strchr:
-                pop ax
-                push cs
-                push ax
-_init_call_strchr:
                 call common_setup
 
                 ; Get the source pointer, ss
-                ; mov             si,[bp+6]
+                ; mov             si,[bp+4]
-                ; mov             bx,[bp+8]
+                ; mov             bx,[bp+6]
                 mov bx,si
                 mov si,di
 
@@ -432,38 +382,28 @@ strchr_found:
 
 ;**********************************************************************
                 global  _fstrcmp
-                global  _init_call_fstrcmp
 _fstrcmp:
-                pop ax
-                push cs
-                push ax
-_init_call_fstrcmp:
                 call common_setup
 
                 ; Get the source pointer, ss
-                lds             si,[bp+6]
+                lds             si,[bp+4]
 
                 ; and the destination pointer, d
-                les             di,[bp+10]
+                les             di,[bp+8]
                 
                 jmp dostrcmp
 
 ;******
                 global  _strcmp
-                global  _init_call_strcmp
 _strcmp:
-                pop ax
-                push cs
-                push ax
-_init_call_strcmp:
                 call common_setup
 
 
                 ; Get the source pointer, ss
-                ; mov             si,[bp+6]
+                ; mov             si,[bp+4]
 
                 ; and the destination pointer, d
-                ; mov             di,[bp+8]
+                ; mov             di,[bp+6]
                 xchg si,di
 
 dostrcmp:                       
@@ -475,39 +415,29 @@ dostrcmp:
                 
 ;**********************************************************************
                 global  _fstrncmp
-                global  _init_call_fstrncmp
 _fstrncmp:
-                pop ax
-                push cs
-                push ax
-_init_call_fstrncmp:
                 call common_setup
 
                 ; Get the source pointer, ss
-                lds             si,[bp+6]
+                lds             si,[bp+4]
 
                 ; and the destination pointer, d
-                les             di,[bp+10]
+                les             di,[bp+8]
-                mov             cx,[bp+12]
+                mov             cx,[bp+10]
                 
                 jmp short dostrncmp
 
 ;******
                 global  _strncmp
-                global  _init_call_strncmp
 _strncmp:
-                pop ax
-                push cs
-                push ax
-_init_call_strncmp:
                 call common_setup
 
                 ; Get the source pointer, ss
-                ;mov             si,[bp+6]
+                ;mov             si,[bp+4]
 
                 ; and the destination pointer, d
-                ;mov             di,[bp+8]
+                ;mov             di,[bp+6]
-                ;mov             cx,[bp+10]
+                ;mov             cx,[bp+8]
                 xchg si,di
 
 dostrncmp:

kernel/blockio.c

@@ -37,6 +37,9 @@ static BYTE *blockioRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.8  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.7  2001/03/21 02:56:25  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -530,7 +533,7 @@ UWORD dskxfer(COUNT dsk, ULONG blkno, VOID FAR * buf, UWORD numblocks, COUNT mod
 {
 /*  REG struct dpb *dpbp = &blk_devices[dsk]; */
 
-  REG struct dpb *dpbp = (struct dpb *)CDSp->cds_table[dsk].cdsDpb;
+  REG struct dpb FAR *dpbp = CDSp->cds_table[dsk].cdsDpb;
 
   for (;;)
   {

kernel/break.c

@@ -30,7 +30,7 @@
 #include "portab.h"
 #include "globals.h"
 
-extern void FAR init_call_spawn_int23(void);
+extern void spawn_int23(void);
 
 #ifdef VERSION_STRINGS
 static BYTE *RcsId = "$Id$";
@@ -38,6 +38,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2001/03/21 02:56:25  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -90,25 +93,5 @@ void handle_break(void)
     if (InDOS)
       --InDOS;                  /* fail-safe */
  
-  {
+  spawn_int23();                /* invoke user INT-23 and never come back */
-    /*TE PATCH
-      CtrlC at DosInput (like C:>DATE does) 
-      Nukes the Kernel.
-      
-      it looks like ENTRY.ASM+PROCSUPT.ASM
-      got out of sync.
-      
-      spawn_int() assumes a stack layout at
-      usr_ss:usr:sp. but usr:ss currently contains 0
-      
-      this patch helps FreeDos to survive CtrlC,
-      but should clearly be done somehow else.
-    */
-  extern ULONG lpUserStack;
-  
-  usr_ss = FP_SEG(lpUserStack);
-  usr_sp = FP_OFF(lpUserStack);
-  }     
-
-  init_call_spawn_int23();                /* invoke user INT-23 and never come back */
 }

kernel/chario.c

@@ -36,6 +36,9 @@ static BYTE *charioRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2000/05/26 19:25:19  jimtabor
  * Read History file for Change info
  *
@@ -117,8 +120,6 @@ static BYTE *charioRcsId = "$Id$";
 
 #include "globals.h"
 
-static BYTE *con_name = "CON";
-
 #ifdef PROTO
 VOID kbfill(keyboard FAR *, UCOUNT, BOOL, UWORD *);
 struct dhdr FAR *finddev(UWORD attr_mask);
@@ -192,7 +193,7 @@ VOID Do_DosIdle_loop(void)
 {
   FOREVER
   {
-    if (StdinBusy())
+    if (!StdinBusy())
       return;
     else
     {
@@ -407,8 +408,3 @@ VOID sti(keyboard FAR * kp)
     }
   }
 }
-
-VOID FAR init_call_sti(keyboard FAR * kp)
-{
-  sti(kp);
-}

kernel/config.c

@@ -27,7 +27,7 @@
 /* Cambridge, MA 02139, USA.                                    */
 /****************************************************************/
 
-
+#define CONFIG
 #include "init-mod.h"
 
 #include "portab.h"
@@ -40,6 +40,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.17  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.16  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -178,15 +181,14 @@ static BYTE *RcsId = "$Id$";
 #define KernelAlloc(x) adjust_far((void far *)malloc((unsigned long)(x)))
 #endif
 
-BYTE FAR *lpBase;
+BYTE FAR *lpBase = 0;
-BYTE FAR *upBase;
+BYTE FAR *upBase = 0;
-static BYTE FAR *lpOldLast;
+static BYTE FAR *lpOldLast = 0;
-static BYTE FAR *upOldLast;
+static COUNT nCfgLine = 0;
-static COUNT nCfgLine;
+static COUNT nPass = 0;
-static COUNT nPass;
+       COUNT UmbState = 0;
-       COUNT UmbState;
+static BYTE szLine[256]={0};
-static BYTE szLine[256];
+static BYTE szBuf[256]={0};
-static BYTE szBuf[256];
 
 int singleStep = 0;
 
@@ -220,8 +222,6 @@ INIT int SkipLine(char *pLine);
 INIT char *stristr(char *s1, char *s2);
 INIT COUNT strcasecmp(REG BYTE *d, REG BYTE *s);
 
-INIT BYTE FAR *KernelAlloc(WORD nBytes);
-
 extern void HMAconfig(int finalize);
 VOID config_init_buffers(COUNT anzBuffers); /* from BLOCKIO.C */
 
@@ -337,9 +337,9 @@ INIT void PreConfig(void)
   f_nodes_cnt = Config.cfgFiles;
   /* sfthead = (sfttbl FAR *)&basesft; */
   /* FCBp = (sfttbl FAR *)&FcbSft; */
-  FCBp = (sfttbl FAR *)
+  /* FCBp = (sfttbl FAR *)
       KernelAlloc(sizeof(sftheader)
-                  + Config.cfgFiles * sizeof(sft));
+                  + Config.cfgFiles * sizeof(sft));*/
   sfthead = (sfttbl FAR *)
       KernelAlloc(sizeof(sftheader)
                   + Config.cfgFiles * sizeof(sft));
@@ -347,11 +347,15 @@ INIT void PreConfig(void)
   CDSp = (cdstbl FAR *)
       KernelAlloc(0x58 * lastdrive);
 
+  DPBp = (struct dpb FAR *)
+      KernelAlloc(blk_dev.dh_name[0]*sizeof(struct dpb));
+
 #ifdef DEBUG
   printf("Preliminary f_node allocated at at 0x%p\n",f_nodes);
   printf("Preliminary FCB table allocated at 0x%p\n",FCBp);
   printf("Preliminary sft table allocated at 0x%p\n",sfthead);
   printf("Preliminary CDS table allocated at 0x%p\n",CDSp);
+  printf("Preliminary DPB table allocated at 0x%p\n",DPBp);
 #endif
 
   /* Done.  Now initialize the MCB structure                      */
@@ -369,7 +373,7 @@ INIT void PreConfig(void)
 
   /* We expect ram_top as Kbytes, so convert to paragraphs */
   mcb_init((mcb FAR *) (MK_FP(first_mcb, 0)),
-           (ram_top << 6) - first_mcb - 1);
+           ((UCOUNT)ram_top << 6) - first_mcb - 1);
   nPass = 1;
 }
 
@@ -416,9 +420,9 @@ INIT void PostConfig(void)
   f_nodes_cnt = Config.cfgFiles;   /* and the number of allocated files */
 /* sfthead = (sfttbl FAR *)&basesft; */
   /* FCBp = (sfttbl FAR *)&FcbSft; */
-  FCBp = (sfttbl FAR *)
+  /* FCBp = (sfttbl FAR *)
       KernelAlloc(sizeof(sftheader)
-                  + Config.cfgFiles * sizeof(sft));
+                  + Config.cfgFiles * sizeof(sft));*/
   sfthead = (sfttbl FAR *)
       KernelAlloc(sizeof(sftheader)
                   + Config.cfgFiles * sizeof(sft));
@@ -426,12 +430,17 @@ INIT void PostConfig(void)
   CDSp = (cdstbl FAR *)
       KernelAlloc(0x58 * lastdrive);
 
+  DPBp = (struct dpb FAR *)
+      KernelAlloc(blk_dev.dh_name[0]*sizeof(struct dpb));
+
+
 #ifdef DEBUG
 
   printf("f_node    allocated at 0x%p\n",f_nodes);
   printf("FCB table allocated at 0x%p\n",FCBp);
   printf("sft table allocated at 0x%p\n",sfthead);
   printf("CDS table allocated at 0x%p\n",CDSp);
+  printf("DPB table allocated at 0x%p\n",DPBp);
 #endif
   if (Config.cfgStacks)
   {
@@ -452,8 +461,6 @@ INIT void PostConfig(void)
 /* This code must be executed after device drivers has been loaded */
 INIT VOID configDone(VOID)
 {
-  COUNT i;
-  
     HMAconfig(TRUE);        /* final HMA processing */
   
   
@@ -470,7 +477,7 @@ INIT VOID configDone(VOID)
 
   /* We expect ram_top as Kbytes, so convert to paragraphs */
   mcb_init((mcb FAR *) (MK_FP(first_mcb, 0)),
-           (ram_top << 6) - first_mcb - 1);
+           ((UCOUNT)ram_top << 6) - first_mcb - 1);
 
     if(UmbState == 1)
     {
@@ -480,10 +487,12 @@ INIT VOID configDone(VOID)
 /* Check if any devices were loaded in umb */
     if(umb_start != FP_SEG(upBase) ){
 /* make last block normal with SC for the devices */
-    mumcb_init((mcb FAR *) (MK_FP(uppermem_root, 0)),
-    (FP_SEG(upBase) + ((FP_OFF(upBase) + 0x0f) >> 4)) - uppermem_root - 1);
         
-    uppermem_root = FP_SEG(upBase) + ((FP_OFF(upBase) + 0x0f) >> 4);
+    UCOUNT umr_new = FP_SEG(upBase) + ((FP_OFF(upBase) + 0x0f) >> 4);
+        
+    mumcb_init((mcb FAR *) (MK_FP(uppermem_root, 0)), umr_new - uppermem_root - 1);
+
+    uppermem_root = umr_new;
     zumcb_init((mcb FAR *) (MK_FP(uppermem_root, 0)),
                                (umb_start + UMB_top ) - uppermem_root - 1);
     upBase += 16;
@@ -511,12 +520,12 @@ INIT VOID DoConfig(VOID)
 
   /* Check to see if we have a config.sys file.  If not, just     */
   /* exit since we don't force the user to have one.              */
-  if ((nFileDesc = dos_open((BYTE FAR *) "fdconfig.sys", 0)) < 0)
+  if ((nFileDesc = init_DosOpen("fdconfig.sys", 0)) < 0)
   {
 #ifdef DEBUG
     printf("FDCONFIG.SYS not found\n");
 #endif
-    if ((nFileDesc = dos_open((BYTE FAR *) "config.sys", 0)) < 0)
+    if ((nFileDesc = init_DosOpen("config.sys", 0)) < 0)
     {
 #ifdef DEBUG
       printf("CONFIG.SYS not found\n");
@@ -557,7 +566,7 @@ INIT VOID DoConfig(VOID)
 
     /* Read a line from config                              */
     /* Interrupt processing if read error or no bytes read  */
-    if ((nRetCode = dos_read(nFileDesc, pLine, LINESIZE - bytesLeft)) <= 0)
+    if ((nRetCode = init_DosRead(nFileDesc, pLine, LINESIZE - bytesLeft)) <= 0)
       break;
 
     /* If the buffer was not filled completely, append a
@@ -571,6 +580,7 @@ INIT VOID DoConfig(VOID)
 
     while (!bEof && *pLine != EOF)
     {
+
 /*
     Do it here in the loop.
 */
@@ -581,11 +591,10 @@ INIT VOID DoConfig(VOID)
         if(!Umb_Test()){
             UmbState = 1;
             upBase = MK_FP(umb_start , 0);
-            uppermem_root = umb_start;
 /* reset root */
-            uppermem_root = FP_SEG(upBase) + ((FP_OFF(upBase) + 0x0f) >> 4);
+            uppermem_root = umb_start;
 /* setup the real mcb for the devicehigh block */
-            zumcb_init((mcb FAR *) (MK_FP(uppermem_root, 0)),  UMB_top - 1);
+            zumcb_init((mcb FAR *) upBase,  UMB_top - 1);
             upBase += 16;
         }
     }
@@ -632,7 +641,7 @@ INIT VOID DoConfig(VOID)
       pLine += strlen(pLine) + 1;
     }
   }
-  dos_close(nFileDesc);
+  init_DosClose(nFileDesc);
 }
 
 INIT struct table *LookUp(struct table *p, BYTE * token)
@@ -763,7 +772,6 @@ INIT static VOID Files(BYTE * pLine)
 INIT static VOID Lastdrive(BYTE * pLine)
 {
   /* Format:   LASTDRIVE = letter         */
-  COUNT nFiles;
   BYTE drv;
 
   pLine = skipwh(pLine);
@@ -789,6 +797,7 @@ INIT static VOID Dosmem(BYTE * pLine)
     BYTE *pTmp;
     BYTE  UMBwanted = FALSE, HMAwanted = FALSE;
 
+    extern BYTE INITDataSegmentClaimed;
 
     pLine = GetStringArg(pLine, szBuf);
 
@@ -801,7 +810,7 @@ INIT static VOID Dosmem(BYTE * pLine)
     {
         if (fmemcmp(pTmp, "UMB" ,3) == 0) { UMBwanted = TRUE; pTmp += 3; }
         if (fmemcmp(pTmp, "HIGH",4) == 0) { HMAwanted = TRUE; pTmp += 4; }
-
+        if (fmemcmp(pTmp, "CLAIMINIT",9) == 0) { INITDataSegmentClaimed = 0; pTmp += 9; }
         pTmp = skipwh(pTmp);
 
         if (*pTmp != ',')
@@ -966,16 +975,16 @@ INIT static VOID Break(BYTE * pLine)
 
 INIT static VOID Numlock(BYTE * pLine)
 {
+  extern VOID keycheck();
+    
   /* Format:      NUMLOCK = (ON | OFF)      */
-  iregs regs;
   BYTE FAR *keyflags = (BYTE FAR *)MK_FP(0x40,0x17);
 
   GetStringArg(pLine, szBuf);
 
   *keyflags &= ~32;
   *keyflags |= strcasecmp(szBuf, "OFF") ? 32 : 0;
-  regs.a.b.h = 1;
+  keycheck();
-  init_call_intr(0x16, &regs);
 }
 
 INIT static VOID DeviceHigh(BYTE * pLine)
@@ -1002,40 +1011,31 @@ INIT void Device(BYTE * pLine)
 
 INIT BOOL LoadDevice(BYTE * pLine, COUNT top, COUNT mode)
 {
-  VOID FAR *driver_ptr;
   BYTE *pTmp;
   exec_blk eb;
   struct dhdr FAR *dhp;
   struct dhdr FAR *next_dhp;
-  UWORD dev_seg;
   BOOL result;
 
   if(mode)
-    dev_seg = (((ULONG) FP_SEG(upBase) << 4) + FP_OFF(upBase) + 0xf) >> 4;
+    dhp = AlignParagraph(upBase);
   else
-    dev_seg = (((ULONG) FP_SEG(lpBase) << 4) + FP_OFF(lpBase) + 0xf) >> 4;
+    dhp = AlignParagraph(lpBase);
 
   /* Get the device driver name                                   */
   GetStringArg(pLine, szBuf);
 
   /* The driver is loaded at the top of allocated memory.         */
   /* The device driver is paragraph aligned.                      */
-  eb.load.reloc = eb.load.load_seg = dev_seg;
+  eb.load.reloc = eb.load.load_seg = FP_SEG(dhp);
-  dhp = MK_FP(dev_seg, 0);
 
 #ifdef DEBUG
   printf("Loading device driver %s at segment %04x\n",
-         szBuf, dev_seg);
+         szBuf, FP_SEG(dhp));
 #endif
 
 
   if (DosExec(3, &eb, szBuf) == SUCCESS)
-  {
-    /* TE this fixes the loading of devices drivers with 
-       multiple devices in it. NUMEGA's SoftIce is such a beast
-   */   
-   
-   for ( ; ; )
   {
         /*  that's a nice hack >:-)   
         
@@ -1060,28 +1060,27 @@ INIT BOOL LoadDevice(BYTE * pLine, COUNT top, COUNT mode)
             }
         /* end of HIMEM.SYS HACK */ 
 
-        result=init_device(dhp, pTmp, mode, top);
+    /* TE this fixes the loading of devices drivers with
-
+       multiple devices in it. NUMEGA's SoftIce is such a beast
-        if(!result){
+    */   
+    for (next_dhp=NULL; FP_OFF(next_dhp) != 0xffff &&
+             (result=init_device(dhp, pTmp, mode, top))==SUCCESS
+            ; dhp = next_dhp)
+    { 
       next_dhp = dhp->dh_next;
+      if (FP_SEG(next_dhp) == 0xffff)
+        /*  Does this ever occur with FP_OFF(next_dhp) != 0xffff ??? */
+      next_dhp = MK_FP(FP_SEG(dhp), FP_OFF(next_dhp));
+#ifdef DEBUG      
+      else if (FP_OFF(next_dhp) != 0xffff)  /* end of internal chain */
+        printf("multisegmented device driver found, next %p\n",next_dhp);
+        /* give warning message */
+#endif          
       /* Link in device driver and save nul_dev pointer to next */
       dhp->dh_next = nul_dev.dh_next;
       nul_dev.dh_next = dhp;
     } 
 
-                                                    /* multiple devices end */
-      if (FP_OFF(next_dhp) == 0xffff)               /* end of internal chain */
-        break;
-      
-      FP_OFF(dhp) = FP_OFF(next_dhp);
-      
-      if (FP_SEG(next_dhp) != 0xffff)
-        {
-        printf("multisegmented device driver found, next %p\n",next_dhp); /* give warning message */
-        dhp = next_dhp;  
-        }
-    } 
-
     HMAconfig(FALSE);   /* let the HMA claim HMA usage */
 
   }
@@ -1109,7 +1108,7 @@ INIT BYTE FAR *KernelAlloc(WORD nBytes)
   lpBase = AlignParagraph(lpBase);
   lpAllocated = lpBase;
 
-  if (0x10000 - FP_OFF(lpBase) <= nBytes)
+  if (0xffff - FP_OFF(lpBase) <= nBytes)
   {
     UWORD newOffs = (FP_OFF(lpBase) + nBytes) & 0xFFFF;
     UWORD newSeg = FP_SEG(lpBase) + 0x1000;
@@ -1140,19 +1139,13 @@ INIT BYTE FAR *KernelAllocDma(WORD bytes)
 
 INIT void FAR *AlignParagraph(VOID FAR * lpPtr)
 {
-  ULONG lTemp;
   UWORD uSegVal;
 
   /* First, convert the segmented pointer to linear address       */
-  lTemp = FP_SEG(lpPtr);
+  uSegVal = FP_SEG(lpPtr);
-  lTemp = (lTemp << 4) + FP_OFF(lpPtr);
+  uSegVal += (FP_OFF(lpPtr)+0xf) >> 4;
-
+  if (FP_OFF(lpPtr) > 0xfff0)
-  /* Next, round up the linear address to a paragraph boundary.   */
+      uSegVal += 0x1000; /* handle overflow */
-  lTemp += 0x0f;
-  lTemp &= 0xfffffff0l;
-
-  /* Break it into segments.                                      */
-  uSegVal = (UWORD) (lTemp >> 4);
 
   /* and return an adddress adjusted to the nearest paragraph     */
   /* boundary.                                                    */
@@ -1238,7 +1231,7 @@ INIT COUNT toupper(COUNT c)
 
 /* The following code is 8086 dependant                         */
 
-#ifdef KERNEL
+#if 1           /* ifdef KERNEL */
 INIT VOID
   mcb_init(mcb FAR * mcbp, UWORD size)
 {
@@ -1314,8 +1307,6 @@ char *stristr(char *s1, char *s2)
 /* compare two ASCII strings ignoring case */
 INIT COUNT strcasecmp(REG BYTE *d, REG BYTE *s)
 {
-    int loop;
-
     while (*s != '\0' && *d != '\0')
     {
         

kernel/console.asm

@@ -28,6 +28,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.6  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.5  2001/03/21 02:56:25  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -285,8 +288,8 @@ ConIS2:
                 lds     bx,[_ReqPktPtr]         ; Set the status
                 mov     [bx+0Dh],al
 ConCharReady:
-                jmp     _IODone                 ; key ready (busy=1)
+                jmp     _IOExit                 ; key ready (busy=0)
 ConNoChar:
-                jmp     _IOExit                 ; no key ready (busy=0)
+                jmp     _IODone                 ; no key ready (busy=1)
 
 

kernel/dosfns.c

@@ -37,6 +37,9 @@ static BYTE *dosfnsRcsId = "$Id$";
  * /// Added SHARE support.  2000/09/04 Ron Cemer
  *
  * $Log$
+ * Revision 1.15  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.14  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -776,6 +779,12 @@ COUNT DosCreat(BYTE FAR * fname, COUNT attrib)
 /*  WORD i;*/
 	COUNT result, drive;
 
+                                   /* NEVER EVER allow directories to be created */
+  if (attrib & ~(D_RDONLY|D_HIDDEN|D_SYSTEM|D_ARCHIVE))
+    {
+        return DE_ACCESS;
+    }
+
   /* get a free handle  */
   if ((hndl = get_free_hndl()) == 0xff)
     return DE_TOOMANY;
@@ -815,8 +824,7 @@ COUNT DosCreat(BYTE FAR * fname, COUNT attrib)
     if (CDSp->cds_table[drive].cdsFlags & CDSNETWDRV) {
 		lpCurSft = (sfttbl FAR *)sftp;
 		sftp->sft_mode = attrib;
-		result = int2f_Remote_call(REM_CREATE, 0, 0, 0, (VOID FAR *) sftp, 0, MK_FP(0, attrib));
+		result = -int2f_Remote_call(REM_CREATE, 0, 0, 0, (VOID FAR *) sftp, 0, MK_FP(0, attrib));
-		result = -result;
 		if (result == SUCCESS) {
       sftp->sft_count += 1;
       p->ps_filetab[hndl] = sft_idx;
@@ -892,7 +900,7 @@ COUNT DosDup(COUNT Handle)
     return DE_TOOMANY;
 
   /* If everything looks ok, bump it up.                          */
-  if ((Sftp->sft_flags & SFT_FDEVICE) || (Sftp->sft_status >= 0))
+  if ((Sftp->sft_flags & (SFT_FDEVICE | SFT_FSHARED)) || (Sftp->sft_status >= 0))
   {
     p->ps_filetab[NewHandle] = p->ps_filetab[Handle];
     Sftp->sft_count += 1;
@@ -925,7 +933,7 @@ COUNT DosForceDup(COUNT OldHandle, COUNT NewHandle)
   }
 
   /* If everything looks ok, bump it up.                          */
-  if ((Sftp->sft_flags & SFT_FDEVICE) || (Sftp->sft_status >= 0))
+  if ((Sftp->sft_flags & (SFT_FDEVICE | SFT_FSHARED)) || (Sftp->sft_status >= 0))
   {
     p->ps_filetab[NewHandle] = p->ps_filetab[OldHandle];
 
@@ -1004,8 +1012,7 @@ COUNT DosOpen(BYTE FAR * fname, COUNT mode)
 
 	if (CDSp->cds_table[drive].cdsFlags & CDSNETWDRV) {
 		lpCurSft = (sfttbl FAR *)sftp;
-		result = int2f_Remote_call(REM_OPEN, 0, 0, 0, (VOID FAR *) sftp, 0, MK_FP(0, mode));
+		result = -int2f_Remote_call(REM_OPEN, 0, 0, 0, (VOID FAR *) sftp, 0, MK_FP(0, mode));
-		result = -result;
 		if (result == SUCCESS) {
       sftp->sft_count += 1;
       p->ps_filetab[hndl] = sft_idx;
@@ -1080,25 +1087,20 @@ COUNT DosClose(COUNT hndl)
 /*
    remote sub sft_count.
  */
+  p->ps_filetab[hndl] = 0xff;
   if (s->sft_flags & SFT_FSHARED)
   {
     int2f_Remote_call(REM_CLOSE, 0, 0, 0, (VOID FAR *) s, 0, 0);
-    p->ps_filetab[hndl] = 0xff;
     return SUCCESS;
   }
 
   /* now just drop the count if a device, else    */
   /* call file system handler                     */
-  if (s->sft_flags & SFT_FDEVICE)
-  {
-    p->ps_filetab[hndl] = 0xff;
   s->sft_count -= 1;
+  if (s->sft_flags & SFT_FDEVICE)
     return SUCCESS;
-  }
   else
   {
-    p->ps_filetab[hndl] = 0xff;
-    s->sft_count -= 1;
     if (s->sft_count > 0)
       return SUCCESS;
     else {
@@ -1113,9 +1115,9 @@ COUNT DosClose(COUNT hndl)
   }
 }
 
-VOID DosGetFree(COUNT drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps, COUNT FAR * nc)
+VOID DosGetFree(UBYTE drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps, COUNT FAR * nc)
 {
-  struct dpb *dpbp;
+  struct dpb FAR *dpbp;
   struct cds FAR *cdsp;
 	static COUNT rg[4];
 
@@ -1123,13 +1125,15 @@ VOID DosGetFree(COUNT drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps,
   drive = (drive == 0 ? default_drive : drive - 1);
 
 	/* first check for valid drive          */
-    if (drive < 0 || drive >= lastdrive)
-  {
   *spc = -1;
+  if (drive >= lastdrive)
       return;
-  }
   
   cdsp = &CDSp->cds_table[drive];
+
+  if (!(cdsp->cdsFlags & CDSVALID))
+      return;
+                
   if (cdsp->cdsFlags & CDSNETWDRV)
   {
       int2f_Remote_call(REM_GETSPACE, 0, 0, 0, cdsp, 0, &rg);
@@ -1141,18 +1145,9 @@ VOID DosGetFree(COUNT drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps,
       return;
   }
 
-  dpbp = (struct dpb *)CDSp->cds_table[drive].cdsDpb;
+  dpbp = CDSp->cds_table[drive].cdsDpb;
-  if (dpbp == 0)
+  if (dpbp == NULL || media_check(dpbp) < 0)
-  {
-    *spc = -1;
       return;
-  }
-
-  if ((media_check(dpbp) < 0))
-  {
-    *spc = -1;
-    return;
-  }
 
   /* get the data vailable from dpb       */
   *nc = dpbp->dpb_size;
@@ -1164,26 +1159,20 @@ VOID DosGetFree(COUNT drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps,
   *navc = dos_free(dpbp);
 }
 
-COUNT DosGetCuDir(COUNT drive, BYTE FAR * s)
+COUNT DosGetCuDir(UBYTE drive, BYTE FAR * s)
 {
-  REG struct cds FAR *cdsp;
-
   /* next - "log" in the drive            */
   drive = (drive == 0 ? default_drive : drive - 1);
 
   /* first check for valid drive          */
-    if (drive < 0 || drive >= lastdrive) {
+  if (drive >= lastdrive || !(CDSp->cds_table[drive].cdsFlags & CDSVALID)) {
     return DE_INVLDDRV;
   }
   
-	cdsp = &CDSp->cds_table[drive];
+  current_ldt = &CDSp->cds_table[drive];
-    current_ldt = cdsp;
 
-	if (!(cdsp->cdsFlags & CDSNETWDRV) && (cdsp->cdsDpb == 0)) {
+  fsncopy((BYTE FAR *) & current_ldt->cdsCurrentPath[1 + current_ldt->cdsJoinOffset],
-		return DE_INVLDDRV;
+          s, 64);
-  }
-
-    fsncopy((BYTE FAR *) & cdsp->cdsCurrentPath[1 + cdsp->cdsJoinOffset], s, 64);
 
   return SUCCESS;
 }
@@ -1225,13 +1214,12 @@ COUNT DosChangeDir(BYTE FAR * s)
         p = PriPathName; while(*p) printf("%c", *p++);
         printf("'\n");
 #endif
-	result = int2f_Remote_call(REM_CHDIR, 0, 0, 0, PriPathName, 0, 0);
+	result = -int2f_Remote_call(REM_CHDIR, 0, 0, 0, PriPathName, 0, 0);
 #if defined(CHDIR_DEBUG)
         printf("status = %04x, new_path='", result);
         p = cdsd->cdsCurrentPath; while(p) printf("%c", *p++)
         printf("'\n");
 #endif
-        result = -result;
 		if (result != SUCCESS) {
                 return DE_PATHNOTFND;
 		}
@@ -1330,10 +1318,9 @@ COUNT DosGetFattr(BYTE FAR * name, UWORD FAR * attrp)
 	static UWORD srfa[5];
 	COUNT result, drive;
 	struct cds FAR *last_cds;
-	BYTE FAR * p;
 
     if (IsDevice(name)) {
-		return DE_PATHNOTFND;
+		return DE_FILENOTFND;
 	}
 
     drive = get_verify_drive(name);
@@ -1360,10 +1347,10 @@ COUNT DosGetFattr(BYTE FAR * name, UWORD FAR * attrp)
 	{
 		last_cds = current_ldt;
 		current_ldt = &CDSp->cds_table[drive];
-		result = int2f_Remote_call(REM_GETATTRZ, 0, 0, 0, 0, 0, (VOID FAR *) srfa);
+		result = -int2f_Remote_call(REM_GETATTRZ, 0, 0, 0, 0, 0, (VOID FAR *) srfa);
-		result = -result;
 		current_ldt = last_cds;
 		*attrp = srfa[0];
+		return result;
 	}
 	else {
 /* /// Use truename()'s result, which we already have in PriPathName.
@@ -1378,20 +1365,17 @@ COUNT DosGetFattr(BYTE FAR * name, UWORD FAR * attrp)
         int i;
         for (i = 0; PriPathName[i] != '\0'; i++) tmp_name[i] = PriPathName[i];
         tmp_name[i] = '\0';
-        result = dos_getfattr(tmp_name, attrp);
+        return dos_getfattr(tmp_name, attrp);
 	}
-/* Sorry Ron someone else found this, see history.txt */
-    return result;
 }
 
 COUNT DosSetFattr(BYTE FAR * name, UWORD FAR * attrp)
 {
 	COUNT result, drive;
 	struct cds FAR *last_cds;
-	BYTE FAR *p;
 
     if (IsDevice(name) ) {
-		return DE_PATHNOTFND;
+		return DE_FILENOTFND;
 	}
 
     drive = get_verify_drive(name);
@@ -1408,9 +1392,9 @@ COUNT DosSetFattr(BYTE FAR * name, UWORD FAR * attrp)
 	{
 		last_cds = current_ldt;
 		current_ldt = &CDSp->cds_table[drive];
-		result = int2f_Remote_call(REM_SETATTR, 0, 0, 0, 0, 0, MK_FP(0, attrp));
+		result = -int2f_Remote_call(REM_SETATTR, 0, 0, 0, 0, 0, MK_FP(0, attrp));
-		result = -result;
 		current_ldt = last_cds;
+		return result;
 	}
 	else {
 /* /// Use truename()'s result, which we already have in PriPathName.
@@ -1422,16 +1406,19 @@ COUNT DosSetFattr(BYTE FAR * name, UWORD FAR * attrp)
         int i;
         for (i = 0; PriPathName[i] != '\0'; i++) tmp_name[i] = PriPathName[i];
         tmp_name[i] = '\0';
-        result =  dos_setfattr(name, attrp);
+        return dos_setfattr(name, attrp);
 	}
-	return result;
 }
 
-BYTE DosSelectDrv(BYTE drv)
+UBYTE DosSelectDrv(UBYTE drv)
 {
-  if ((0 <= drv) && (drv < lastdrive) &&(CDSp->cds_table[drv].cdsFlags & 0xf000))
+  struct cds FAR *cdsp = &CDSp->cds_table[drv];
+    
+  if ((drv < lastdrive) && (cdsp->cdsFlags & CDSVALID) &&
+      ((cdsp->cdsFlags & CDSNETWDRV) ||
+       (cdsp->cdsDpb!=NULL && media_check(cdsp->cdsDpb)==SUCCESS)))
   {
-    current_ldt = &CDSp->cds_table[drv];
+    current_ldt = cdsp;
     default_drive = drv;
   }
   return lastdrive;
@@ -1442,7 +1429,7 @@ COUNT DosDelete(BYTE FAR *path)
 	COUNT result, drive;
 
     if (IsDevice(path)) {
-		return DE_PATHNOTFND;
+		return DE_FILENOTFND;
 	}
 
     drive = get_verify_drive(path);
@@ -1455,12 +1442,10 @@ COUNT DosDelete(BYTE FAR *path)
 	}
     current_ldt = &CDSp->cds_table[drive];
 	if (CDSp->cds_table[drive].cdsFlags & CDSNETWDRV) {
-		result = int2f_Remote_call(REM_DELETE, 0, 0, 0, 0, 0, 0);
+		return -int2f_Remote_call(REM_DELETE, 0, 0, 0, 0, 0, 0);
-		result = -result;
 	}  else {
-		result = dos_delete(path);
+		return dos_delete(path);
 	}
-	return result;
 }
 
 COUNT DosRename(BYTE FAR * path1, BYTE FAR * path2)
@@ -1468,7 +1453,7 @@ COUNT DosRename(BYTE FAR * path1, BYTE FAR * path2)
 	COUNT result, drive1, drive2;
 
     if (IsDevice(path1) || IsDevice(path2)) {
-        return DE_PATHNOTFND;
+        return DE_FILENOTFND;
 	}
 
     drive1 = get_verify_drive(path1);
@@ -1486,12 +1471,10 @@ COUNT DosRename(BYTE FAR * path1, BYTE FAR * path2)
 	}
 	current_ldt = &CDSp->cds_table[drive1];
 	if (CDSp->cds_table[drive1].cdsFlags & CDSNETWDRV) {
-		result = int2f_Remote_call(REM_RENAME, 0, 0, 0, 0, 0, 0);
+		return -int2f_Remote_call(REM_RENAME, 0, 0, 0, 0, 0, 0);
-		result = -result;
 	} else {
-        result = dos_rename(path1, path2);
+        	return dos_rename(path1, path2);
 	}
-	return result;
 }
 
 COUNT DosMkdir(BYTE FAR * dir)
@@ -1512,12 +1495,10 @@ COUNT DosMkdir(BYTE FAR * dir)
 	}
     current_ldt = &CDSp->cds_table[drive];
 	if (CDSp->cds_table[drive].cdsFlags & CDSNETWDRV) {
-		result = int2f_Remote_call(REM_MKDIR, 0, 0, 0, 0, 0, 0);
+		return -int2f_Remote_call(REM_MKDIR, 0, 0, 0, 0, 0, 0);
-		result = -result;
 	}  else {
-		result = dos_mkdir(dir);
+		return dos_mkdir(dir);
 	}
-	return result;
 }
 
 COUNT DosRmdir(BYTE FAR * dir)
@@ -1538,12 +1519,10 @@ COUNT DosRmdir(BYTE FAR * dir)
 	}
     current_ldt = &CDSp->cds_table[drive];
 	if (CDSp->cds_table[drive].cdsFlags & CDSNETWDRV) {
-		result = int2f_Remote_call(REM_RMDIR, 0, 0, 0, 0, 0, 0);
+		return -int2f_Remote_call(REM_RMDIR, 0, 0, 0, 0, 0, 0);
-		result = -result;
 	}  else {
-		result = dos_rmdir(dir);
+		return dos_rmdir(dir);
 	}
-	return result;
 }
 
 /* /// Added for SHARE.  - Ron Cemer */

kernel/dosnames.c

@@ -36,6 +36,9 @@ static BYTE *dosnamesRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.8  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.7  2001/03/21 02:56:25  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -206,7 +209,7 @@ COUNT ParseDosName(BYTE FAR * lpszFileName,
       lpszLclFile = lpszFileName + 1;
     ++lpszFileName;
   }
-  nDirCnt = lpszLclFile - lpszLclDir;
+  nDirCnt = FP_OFF(lpszLclFile) - FP_OFF(lpszLclDir);
   /* Parse out the file name portion.                             */
   lpszFileName = lpszLclFile;
   while (bAllowWildcards ? WildChar(*lpszFileName) : NameChar(*lpszFileName))

kernel/dsk.c

@@ -26,13 +26,15 @@
 
 #include "portab.h"
 #include "globals.h"
-
 #ifdef VERSION_STRINGS
 static BYTE *dskRcsId = "$Id$";
 #endif
 
 /*
  * $Log$
+ * Revision 1.14  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.13  2001/03/27 20:27:43  bartoldeman
  * dsk.c (reported by Nagy Daniel), inthndlr and int25/26 fixes by Tom Ehlert.
  *
@@ -662,7 +664,7 @@ restart:                    /* yes, it's a GOTO >:-) */
   return PartitionDone;
 }
 
-COUNT FAR init_call_blk_driver(rqptr rp)
+COUNT FAR blk_driver(rqptr rp)
 {
   if (rp->r_unit >= nUnits && rp->r_command != C_INIT)
     return failure(E_UNIT);
@@ -705,7 +707,7 @@ WORD _dsk_init(rqptr rp)
     pmiarray->mi_offset = 0l;
     pmiarray->mi_drive = Unit;
 
-    fsarray[Unit].fs_serialno = 0x12345678;
+    fsarray[Unit].fs_serialno = 0x12345678l;
 
 	pbpbarray = getPBpbarray(Unit);    
 
@@ -1004,6 +1006,8 @@ static WORD Genblkdev(rqptr rp)
 
         if (!hd(miarray[rp->r_unit].mi_drive)){
             y = 2;
+	    x = 8;      /* any odd ball drives return this */
+            if (miarray[rp->r_unit].mi_size <= 0xffff)
               switch(miarray[rp->r_unit].mi_size)
               {
                 case 640l:
@@ -1023,15 +1027,13 @@ static WORD Genblkdev(rqptr rp)
                 case 5760l:     /* 2.88 almost forgot this one*/
                     x = 9;
                 break;
-                default:
-                    x = 8;      /* any odd ball drives return this */
               }
         }
         gblp->gbio_devtype = (UBYTE) x;
         gblp->gbio_devattrib = (UWORD) y;
         gblp->gbio_media = (UBYTE) z;
         gblp->gbio_ncyl = miarray[rp->r_unit].mi_cyls;
-        gblp->gbio_bpb = bpbarray[rp->r_unit];
+        fmemcpy(&gblp->gbio_bpb, &bpbarray[rp->r_unit], sizeof(gblp->gbio_bpb));
         gblp->gbio_nsecs = bpbarray[rp->r_unit].bpb_nsector;
         break;
         }
@@ -1092,13 +1094,10 @@ WORD blockio(rqptr rp)
   total = 0;
   trans = rp->r_trans;
   tmark();
-  for (
+  remaining = rp->r_count;
-        remaining = rp->r_count,
   start = (rp->r_start != HUGECOUNT ? rp->r_start : rp->r_huge)
         + miarray[rp->r_unit].mi_offset;
-        remaining > 0;
+  while(remaining > 0)
-        remaining -= count, trans += count * SEC_SIZE, start += count
-      )
   {
     count = ltop(&track, &sector, &head, rp->r_unit, remaining, start, trans);
     
@@ -1151,6 +1150,9 @@ WORD blockio(rqptr rp)
       return dskerr(ret);
     }
     total += count;
+    remaining -= count;
+    trans += count * SEC_SIZE;
+    start += count;
   }
   rp->r_count = total;
   return S_DONE;

kernel/error.c

@@ -34,6 +34,9 @@ static BYTE *errorRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.4  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.3  2000/05/25 20:56:21  jimtabor
  * Fixed project history
  *
@@ -125,10 +128,6 @@ VOID fatal(BYTE * err_msg)
   for (;;) ;
 }
 
-VOID FAR init_call_fatal(BYTE * err_msg)
-{
-  fatal(err_msg);
-}
 #endif
 
 /* Abort, retry or fail for character devices                   */

kernel/execrh.asm

@@ -30,6 +30,9 @@
 ; $Id$
 ;
 ; $Log$
+; Revision 1.6  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.5  2001/04/02 23:18:30  bartoldeman
 ; Misc, zero terminated device names and redirector bugs fixed.
 ;
@@ -99,62 +102,33 @@ segment	HMA_TEXT
 _execrh:
                 push    bp              ; perform c entry
                 mov     bp,sp
-                push    bp              ; it will get destroyed
                 push    bx              ; random char on display
                 push    si
                 push    es              ; sometimes it get lost
-                push    ds
+                push    ds              ; sp=bp-8
 
                 lds     si,[bp+8]       ; ds:si = device header
                 les     bx,[bp+4]       ; es:bx = request header
 
-                push ds                 ; needed later
-                push si
-                
-                mov bp, execrh_ret1     ; construct return frame
-                push cs
                 push    bp
-                
+                push    ds              
-                push ds                 ; call far the strategy
+                push    si              ; needed later
-                push word [si+6]
+                mov     ax, [si+6]
-
+                mov     [bp+8], ax    
-                retf
+                call    far[bp+8]       ; call far the strategy
-execrh_ret1:                
                 pop     si              ; these were saved
                 pop     ds
+                pop     bp
         
-                mov bp, execrh_ret2     ; construct return frame
+                mov     ax, [si+8]                         
-                push cs
+                mov     [bp+8], ax
-                push bp
+                call    far[bp+8]       ; call far the interrupt
 
-                push ds                 ; call far the interrupt
+                sti                     ; damm driver turn off ints
-                push word [si+8]
-                
-                retf
-execrh_ret2:                
-
-exit_execrh:    sti                         ; damm driver turn off ints
                 cld                     ; has gone backwards
                 pop     ds
                 pop     es
                 pop     si
                 pop     bx
                 pop     bp
-                mov     sp,bp
-                pop     bp
                 ret
-
-		global	_init_call_execrh
-
-_init_call_execrh:
-		push	bp
-		mov	bp,sp
-		push	word [bp+12]
-		push	word [bp+10]
-		push	word [bp+8]
-		push	word [bp+6]
-		call	_execrh
-		mov	sp,bp
-		pop	bp
-		retf
-

kernel/fatdir.c

@@ -36,6 +36,9 @@ static BYTE *fatdirRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.14  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.13  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -241,12 +244,12 @@ struct f_node FAR *dir_open(BYTE FAR * dirname)
     return NULL;
   }
 
-  fnp->f_dpb = (struct dpb *)TempCDS.cdsDpb;
+  fnp->f_dpb = TempCDS.cdsDpb;
 
   /* Perform all directory common handling after all special      */
   /* handling has been performed.                                 */
 
-  if (media_check((struct dpb *)TempCDS.cdsDpb) < 0)
+  if (media_check(TempCDS.cdsDpb) < 0)
   {
     release_f_node(fnp);
     return (struct f_node FAR *)0;
@@ -450,7 +453,7 @@ COUNT dir_read(REG struct f_node FAR * fnp)
     /* Now that we have the block for our entry, get the    */
     /* directory entry.                                     */
     if (bp != NULL)
-      getdirent((BYTE FAR *) & bp->b_buffer[fnp->f_diroff % fnp->f_dpb->dpb_secsize],
+      getdirent((BYTE FAR *) & bp->b_buffer[((UWORD)fnp->f_diroff) % fnp->f_dpb->dpb_secsize],
                 (struct dirent FAR *)&fnp->f_dir);
     else
     {
@@ -484,7 +487,7 @@ COUNT dir_write(REG struct f_node FAR * fnp)
     if (fnp->f_flags.f_droot)
     {
       bp = getblock(
-                     (ULONG) (fnp->f_diroff / fnp->f_dpb->dpb_secsize
+                     (ULONG) ((UWORD)fnp->f_diroff / fnp->f_dpb->dpb_secsize
                               + fnp->f_dpb->dpb_dirstrt),
                      fnp->f_dpb->dpb_unit);
       bp->b_flag &= ~(BFR_DATA | BFR_FAT);
@@ -554,7 +557,7 @@ COUNT dir_write(REG struct f_node FAR * fnp)
       return 0;
     }
     putdirent((struct dirent FAR *)&fnp->f_dir,
-    (VOID FAR *) & bp->b_buffer[fnp->f_diroff % fnp->f_dpb->dpb_secsize]);
+    (VOID FAR *) & bp->b_buffer[(UWORD)fnp->f_diroff % fnp->f_dpb->dpb_secsize]);
     bp->b_flag |= BFR_DIRTY;
   }
   return DIRENT_SIZE;
@@ -589,7 +592,6 @@ COUNT dos_findfirst(UCOUNT attr, BYTE FAR * name)
   REG COUNT i;
   COUNT nDrive;
   BYTE *p;
-/*  BYTE FAR *ptr;*/
 
   static BYTE local_name[FNAME_SIZE + 1],
     local_ext[FEXT_SIZE + 1];
@@ -604,7 +606,7 @@ COUNT dos_findfirst(UCOUNT attr, BYTE FAR * name)
   /* current directory, do a seek and read, then close the fnode. */
 
   /* Start out by initializing the dirmatch structure.            */
-  dmp->dm_drive = default_drive ;
+  dmp->dm_drive = default_drive;
   dmp->dm_entry = 0;
   dmp->dm_cluster = 0;
 
@@ -621,7 +623,7 @@ COUNT dos_findfirst(UCOUNT attr, BYTE FAR * name)
 */
   if (nDrive >= 0)
   {
-    dmp->dm_drive = nDrive ;
+    dmp->dm_drive = nDrive;
   }
   else
     nDrive = default_drive;
@@ -661,9 +663,8 @@ COUNT dos_findfirst(UCOUNT attr, BYTE FAR * name)
 
   if (current_ldt->cdsFlags & CDSNETWDRV)
   {
-    if (Remote_find(REM_FINDFIRST, name, dmp) != 0)
+    dmp->dm_drive |= 0x80;
-      return DE_FILENOTFND;
+    return -Remote_find(REM_FINDFIRST, name, dmp);
-    return SUCCESS;
   }
 
     /* /// Added code here to do matching against device names.
@@ -708,17 +709,31 @@ COUNT dos_findfirst(UCOUNT attr, BYTE FAR * name)
 
 
   /* Now search through the directory to find the entry...        */
+
+  /* Complete building the directory from the passed in   */
+  /* name                                                 */
+  if (nDrive >= 0)
+    LocalPath[0] = 'A' + nDrive;
+  else
+    LocalPath[0] = 'A' + default_drive;
+  LocalPath[1] = ':';
+    
   /* Special handling - the volume id is only in the root         */
   /* directory and only searched for once.  So we need to open    */
   /* the root and return only the first entry that contains the   */
   /* volume id bit set.                                           */
   if ((attr & ~(D_RDONLY | D_ARCHIVE)) == D_VOLID)
   {
+    LocalPath[2] = '\\';
+    LocalPath[3] = '\0';
+  }
   /* Now open this directory so that we can read the      */
   /* fnode entry and do a match on it.                    */
-    if ((fnp = dir_open((BYTE FAR *) "\\")) == NULL)
+  if ((fnp = dir_open((BYTE FAR *) LocalPath)) == NULL)
     return DE_PATHNOTFND;
 
+  if ((attr & ~(D_RDONLY | D_ARCHIVE)) == D_VOLID)
+  {
     /* Now do the search                                    */
     while (dir_read(fnp) == DIRENT_SIZE)
     {
@@ -736,23 +751,9 @@ COUNT dos_findfirst(UCOUNT attr, BYTE FAR * name)
     dir_close(fnp);
     return DE_FILENOTFND;
   }
-
   /* Otherwise just do a normal find next                         */
   else
   {
-    /* Complete building the directory from the passed in   */
-    /* name                                                 */
-    if (nDrive >= 0)
-      LocalPath[0] = 'A' + nDrive;
-    else
-      LocalPath[0] = 'A' + default_drive;
-    LocalPath[1] = ':';
-
-    /* Now open this directory so that we can read the      */
-    /* fnode entry and do a match on it.                    */
-    if ((fnp = dir_open((BYTE FAR *) LocalPath)) == NULL)
-      return DE_PATHNOTFND;
-
     pop_dmp(dmp, fnp);
     dmp->dm_entry = 0;
     if (!fnp->f_flags.f_droot)
@@ -775,9 +776,6 @@ COUNT dos_findnext(void)
   REG dmatch FAR *dmp = (dmatch FAR *) dta;
   REG struct f_node FAR *fnp;
   BOOL found = FALSE;
-/*  BYTE FAR *p;*/
-/*  BYTE FAR *q;*/
-  COUNT nDrive;
 
   /* assign our match parameters pointer.                         */
   dmp = (dmatch FAR *) dta;
@@ -790,50 +788,43 @@ COUNT dos_findnext(void)
  *  test 40h. I used RamView to see location MSD 116:04be and
  *  FD f??:04be, the byte set with 0xc4 = Remote/Network drive 4.
  *  Ralf Brown docs for dos 4eh say bit 7 set == remote so what is
- *  bit 6 for? SHSUCDX Mod info say "test redir not network bit".
+ *  bit 6 for? 
+ *  SHSUCDX Mod info say "test redir not network bit".
  *  Just to confuse the rest, MSCDEX sets bit 5 too.
  *
  *  So, assume bit 6 is redirector and bit 7 is network.
  *  jt
+ *  Bart: dm_drive can be the drive _letter_.
+ *  but better just stay independent of it: we only use
+ *  bit 7 to detect a network drive; the rest untouched.
+ *  RBIL says that findnext can only return one error type anyway
+ *  (12h, DE_NFILES)
  */
-  nDrive = dmp->dm_drive  & 0x1f;
-
-  if (nDrive >= lastdrive) {
-    return DE_INVLDDRV;
-  }
-  current_ldt = &CDSp->cds_table[nDrive];
 
 #if 0
-  printf("findnext: %c %s\n", 
+  printf("findnext: %d\n", 
-	  nDrive + 'A', (current_ldt->cdsFlags & CDSNETWDRV)?"remote":"local");
+	  dmp->dm_drive);
 #endif
 
-  if (current_ldt->cdsFlags & CDSNETWDRV)
+  if (dmp->dm_drive & 0x80)
-  {
+    return -Remote_find(REM_FINDNEXT, 0, dmp);
-    if (Remote_find(REM_FINDNEXT, 0, dmp) != 0)
-      return DE_FILENOTFND;
-    return SUCCESS;
-  }
 
   /* Allocate an fnode if possible - error return (0) if not.     */
   if ((fnp = get_f_node()) == (struct f_node FAR *)0)
   {
-    return DE_FILENOTFND;
+    return DE_NFILES;
   }
 
   /* Force the fnode into read-write mode                         */
   fnp->f_mode = RDWR;
 
-  if (dmp->dm_drive >= lastdrive) {
-    return DE_INVLDDRV;
-  }
   /* Select the default to help non-drive specified path          */
   /* searches...                                                  */
-  fnp->f_dpb = (struct dpb *)CDSp->cds_table[dmp->dm_drive].cdsDpb;
+  fnp->f_dpb = CDSp->cds_table[dmp->dm_drive].cdsDpb;
   if (media_check(fnp->f_dpb) < 0)
   {
     release_f_node(fnp);
-    return DE_FILENOTFND;
+    return DE_NFILES;
   }
 
   fnp->f_dsize = DIRENT_SIZE * (fnp->f_dpb)->dpb_dirents;

kernel/fatfs.c

@@ -36,6 +36,9 @@ BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.14  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.13  2001/03/30 19:30:06  bartoldeman
  * Misc fixes and implementation of SHELLHIGH. See history.txt for details.
  *
@@ -247,8 +250,6 @@ COUNT map_cluster(struct f_node FAR *, COUNT);
 COUNT dos_open(BYTE FAR * path, COUNT flag)
 {
   REG struct f_node FAR *fnp;
-  COUNT i;
-  BYTE FAR *fnamep;
 
   /* First test the flag to see if the user has passed a valid    */
   /* file mode...                                                 */
@@ -296,11 +297,6 @@ COUNT dos_open(BYTE FAR * path, COUNT flag)
   return xlt_fnp(fnp);
 }
 
-COUNT FAR init_call_dos_open(BYTE FAR * path, COUNT flag)
-{
-  return dos_open(path, flag);
-}
-
 BOOL fcmp(BYTE FAR * s1, BYTE FAR * s2, COUNT n)
 {
   while (n--)
@@ -349,11 +345,6 @@ COUNT dos_close(COUNT fd)
   return SUCCESS;
 }
 
-COUNT FAR init_call_dos_close(COUNT fd)
-{
-  return dos_close(fd);
-}
-
 /*                                                                      */
 /* split a path into it's component directory and file name             */
 /*                                                                      */
@@ -378,7 +369,7 @@ struct f_node FAR *
   SpacePad(fname, FNAME_SIZE);
   SpacePad(fext, FEXT_SIZE);
 
-  if (nDrive > (lastdrive -1)) {
+  if (nDrive >= lastdrive) {
     return (struct f_node FAR *)0;
   }
   cdsp = &CDSp->cds_table[nDrive];
@@ -525,6 +516,12 @@ COUNT dos_creat(BYTE FAR * path, COUNT attrib)
 {
   REG struct f_node FAR *fnp;
 
+                                   /* NEVER EVER allow directories to be created */
+  if (attrib & ~(D_RDONLY|D_HIDDEN|D_SYSTEM|D_ARCHIVE))
+    {
+        return DE_ACCESS;
+    }
+
   /* first split the passed dir into comopnents (i.e. -   */
   /* path to new directory and name of new directory      */
   if ((fnp = split_path(path, szDirName, szFileName, szFileExt)) == NULL)
@@ -555,9 +552,6 @@ COUNT dos_creat(BYTE FAR * path, COUNT attrib)
   else
   {
     BOOL is_free;
-    REG COUNT idx;
-    struct buffer FAR *bp;
-    BYTE FAR *p;
 
     /* Reset the directory by a close followed by   */
     /* an open                                      */
@@ -877,7 +871,7 @@ static VOID wipe_out(struct f_node FAR * fnp)
 {
   REG UWORD st,
     next;
-  struct dpb *dpbp = fnp->f_dpb;
+  struct dpb FAR *dpbp = fnp->f_dpb;
 
   /* if already free or not valid file, just exit         */
   if ((fnp == NULL) || (fnp->f_dir.dir_start == FREE))
@@ -954,11 +948,6 @@ date dos_getdate()
 #endif
 }
 
-date FAR init_call_dos_getdate()
-{
-  return dos_getdate();
-}
-
 /*                                                              */
 /* dos_gettime for the file time                                */
 /*                                                              */
@@ -969,8 +958,6 @@ time dos_gettime()
     Minute,
     Second,
     Hundredth;
-  time Time;
-  BYTE h;
 
   /* First - get the system time set by either the user   */
   /* on start-up or the CMOS clock                        */
@@ -984,11 +971,6 @@ time dos_gettime()
 #endif
 }
 
-time FAR init_call_dos_gettime()
-{
-  return dos_gettime();
-}
-
 /*                                                              */
 /* dos_getftime for the file time                               */
 /*                                                              */
@@ -1509,7 +1491,6 @@ UCOUNT readblock(COUNT fd, VOID FAR * buffer, UCOUNT count, COUNT * err)
   REG struct buffer FAR *bp;
   UCOUNT xfr_cnt = 0;
   UCOUNT ret_cnt = 0;
-  ULONG idx;
   UWORD secsize;
   UCOUNT to_xfer = count;
 
@@ -1666,7 +1647,7 @@ UCOUNT readblock(COUNT fd, VOID FAR * buffer, UCOUNT count, COUNT * err)
     if (fnp->f_flags.f_ddir)
       xfr_cnt = min(to_xfer, secsize - fnp->f_boff);
     else
-      xfr_cnt = min(min(to_xfer, secsize - fnp->f_boff),
+      xfr_cnt = (UWORD)min(min(to_xfer, secsize - fnp->f_boff),
                     fnp->f_dir.dir_size - fnp->f_offset);
 
     fbcopy((BYTE FAR *) & bp->b_buffer[fnp->f_boff], buffer, xfr_cnt);
@@ -1688,7 +1669,6 @@ UCOUNT writeblock(COUNT fd, VOID FAR * buffer, UCOUNT count, COUNT * err)
   struct buffer FAR *bp;
   UCOUNT xfr_cnt = 0;
   UCOUNT ret_cnt = 0;
-  ULONG idx;
   UWORD secsize;
   UCOUNT to_xfer = count;
 
@@ -1927,11 +1907,6 @@ COUNT dos_read(COUNT fd, VOID FAR * buffer, UCOUNT count)
   return err != SUCCESS ? err : xfr;
 }
 
-COUNT FAR init_call_dos_read(COUNT fd, VOID FAR * buffer, UCOUNT count)
-{
-  return dos_read(fd, buffer, count);
-}
-
 #ifndef IPL
 COUNT dos_write(COUNT fd, VOID FAR * buffer, UCOUNT count)
 {
@@ -2016,7 +1991,7 @@ LONG dos_lseek(COUNT fd, LONG foffset, COUNT origin)
 }
 
 /* returns the number of unused clusters */
-UWORD dos_free(struct dpb * dpbp)
+UWORD dos_free(struct dpb FAR *dpbp)
 {
   /* There's an unwritten rule here. All fs       */
   /* cluster start at 2 and run to max_cluster+2  */
@@ -2029,7 +2004,7 @@ UWORD dos_free(struct dpb * dpbp)
   UWORD max_cluster = ( ((ULONG) dpbp->dpb_size * (ULONG) (dpbp->dpb_clsmask + 1))
                         / (dpbp->dpb_clsmask + 1) ) + 1;
 
-  if (dpbp->dpb_nfreeclst != UNKNCLUSTER)
+  if (dpbp->dpb_nfreeclst != UNKNCLSTFREE)
     return dpbp->dpb_nfreeclst;
   else
   {
@@ -2048,18 +2023,13 @@ UWORD dos_free(struct dpb * dpbp)
 #ifndef IPL
 COUNT dos_cd(struct cds FAR * cdsp, BYTE FAR *PathName)
 {
-  BYTE FAR *p;
   struct f_node FAR *fnp;
-	REG struct dpb *dpbp;
-  COUNT x;
 
 	/* first check for valid drive          */
 	if (cdsp->cdsDpb == 0)
 		return DE_INVLDDRV;
 
-
+	if ((media_check(cdsp->cdsDpb) < 0))
-	dpbp = (struct dpb *)cdsp->cdsDpb;
-	if ((media_check(dpbp) < 0))
 		return DE_INVLDDRV;
 
   /* now test for its existance. If it doesn't, return an error.  */
@@ -2174,11 +2144,50 @@ COUNT dos_setfattr(BYTE FAR * name, UWORD FAR * attrp)
 }
 #endif
 
-COUNT media_check(REG struct dpb * dpbp)
+VOID bpb_to_dpb(bpb FAR *bpbp, REG struct dpb FAR * dpbp)
 {
-  bpb FAR *bpbp;
   ULONG size;
   REG COUNT i;
+
+      dpbp->dpb_mdb = bpbp->bpb_mdesc;
+      dpbp->dpb_secsize = bpbp->bpb_nbyte;
+      dpbp->dpb_clsmask = bpbp->bpb_nsector - 1;
+      dpbp->dpb_fatstrt = bpbp->bpb_nreserved;
+      dpbp->dpb_fats = bpbp->bpb_nfat;
+      dpbp->dpb_dirents = bpbp->bpb_ndirent;
+      size = bpbp->bpb_nsize == 0 ?
+          bpbp->bpb_huge :
+          (ULONG) bpbp->bpb_nsize;
+/* patch point
+      dpbp->dpb_size = size / ((ULONG) bpbp->bpb_nsector);
+*/
+      dpbp->dpb_fatsize = bpbp->bpb_nfsect;
+      dpbp->dpb_dirstrt = dpbp->dpb_fatstrt
+          + dpbp->dpb_fats * dpbp->dpb_fatsize;
+      dpbp->dpb_data = dpbp->dpb_dirstrt
+          + ((DIRENT_SIZE * dpbp->dpb_dirents
+              + (dpbp->dpb_secsize - 1))
+             / dpbp->dpb_secsize);
+/*
+	Michal Meller <maceman@priv4,onet.pl> patch to jimtabor
+*/
+      dpbp->dpb_size = ((size - dpbp->dpb_data) / ((ULONG) bpbp->bpb_nsector) + 1);
+
+      dpbp->dpb_flags = 0;
+/*      dpbp->dpb_next = (struct dpb FAR *)-1;*/
+      dpbp->dpb_cluster = UNKNCLUSTER;
+      dpbp->dpb_nfreeclst = UNKNCLSTFREE;	/* number of free clusters */
+      for (i = 1, dpbp->dpb_shftcnt = 0;
+           i < (sizeof(dpbp->dpb_shftcnt) * 8);	/* 8 bit bytes in C */
+           dpbp->dpb_shftcnt++, i <<= 1)
+      {
+        if (i >= bpbp->bpb_nsector)
+          break;
+      }
+}
+
+COUNT media_check(REG struct dpb FAR * dpbp)
+{
   /* First test if anyone has changed the removable media         */
   FOREVER
   {
@@ -2257,42 +2266,7 @@ COUNT media_check(REG struct dpb * dpbp)
           }
         }
       }
-      bpbp = MediaReqHdr.r_bpptr;
+      bpb_to_dpb(MediaReqHdr.r_bpptr, dpbp);
-      dpbp->dpb_mdb = bpbp->bpb_mdesc;
-      dpbp->dpb_secsize = bpbp->bpb_nbyte;
-      dpbp->dpb_clsmask = bpbp->bpb_nsector - 1;
-      dpbp->dpb_fatstrt = bpbp->bpb_nreserved;
-      dpbp->dpb_fats = bpbp->bpb_nfat;
-      dpbp->dpb_dirents = bpbp->bpb_ndirent;
-      size = bpbp->bpb_nsize == 0 ?
-          bpbp->bpb_huge :
-          (ULONG) bpbp->bpb_nsize;
-/* patch point
-      dpbp->dpb_size = size / ((ULONG) bpbp->bpb_nsector);
-*/
-      dpbp->dpb_fatsize = bpbp->bpb_nfsect;
-      dpbp->dpb_dirstrt = dpbp->dpb_fatstrt
-          + dpbp->dpb_fats * dpbp->dpb_fatsize;
-      dpbp->dpb_data = dpbp->dpb_dirstrt
-          + ((DIRENT_SIZE * dpbp->dpb_dirents
-              + (dpbp->dpb_secsize - 1))
-             / dpbp->dpb_secsize);
-/*
-	Michal Meller <maceman@priv4,onet.pl> patch to jimtabor
-*/
-      dpbp->dpb_size = ((size - dpbp->dpb_data) / ((ULONG) bpbp->bpb_nsector) + 1);
-
-      dpbp->dpb_flags = 0;
-/*      dpbp->dpb_next = (struct dpb FAR *)-1;*/
-      dpbp->dpb_cluster = UNKNCLUSTER;
-      dpbp->dpb_nfreeclst = UNKNCLUSTER;	/* number of free clusters */
-      for (i = 1, dpbp->dpb_shftcnt = 0;
-           i < (sizeof(dpbp->dpb_shftcnt) * 8);	/* 8 bit bytes in C */
-           dpbp->dpb_shftcnt++, i <<= 1)
-      {
-        if (i >= bpbp->bpb_nsector)
-          break;
-      }
       return SUCCESS;
   }
 }
@@ -2306,7 +2280,7 @@ struct f_node FAR *xlt_fd(COUNT fd)
 /* translate the f_node pointer into an fd */
 COUNT xlt_fnp(struct f_node FAR * fnp)
 {
-  return fnp - f_nodes;
+  return (COUNT)(fnp - f_nodes);
 }
 
 #if 0

kernel/fattab.c

@@ -35,6 +35,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.4  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.3  2000/05/25 20:56:21  jimtabor
  * Fixed project history
  *
@@ -99,10 +102,10 @@ static BYTE *RcsId = "$Id$";
  */
 
 #ifdef PROTO
-UCOUNT link_fat12(struct dpb *, UCOUNT, UCOUNT);
+UCOUNT link_fat12(struct dpb FAR *, UCOUNT, UCOUNT);
-UCOUNT link_fat16(struct dpb *, UCOUNT, UCOUNT);
+UCOUNT link_fat16(struct dpb FAR *, UCOUNT, UCOUNT);
-UWORD next_cl12(struct dpb *, UCOUNT);
+UWORD next_cl12(struct dpb FAR *, UCOUNT);
-UWORD next_cl16(struct dpb *, UCOUNT);
+UWORD next_cl16(struct dpb FAR *, UCOUNT);
 #else
 UCOUNT link_fat12();
 UCOUNT link_fat16();
@@ -132,7 +135,7 @@ UWORD next_cl16();
 /*      12 bytes are compressed to 9 bytes                      */
 /*                                                              */
 
-UCOUNT link_fat(struct dpb *dpbp, UCOUNT Cluster1, REG UCOUNT Cluster2)
+UCOUNT link_fat(struct dpb FAR *dpbp, UCOUNT Cluster1, REG UCOUNT Cluster2)
 {
   if (ISFAT12(dpbp))
     return link_fat12(dpbp, Cluster1, Cluster2);
@@ -142,7 +145,7 @@ UCOUNT link_fat(struct dpb *dpbp, UCOUNT Cluster1, REG UCOUNT Cluster2)
     return DE_BLKINVLD;
 }
 
-UCOUNT link_fat16(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
+UCOUNT link_fat16(struct dpb FAR *dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
 {
   UCOUNT idx;
   struct buffer FAR *bp;
@@ -164,7 +167,7 @@ UCOUNT link_fat16(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
 
   /* form an index so that we can read the block as a     */
   /* byte array                                           */
-  idx = (((LONG) Cluster1) * SIZEOF_CLST16) % dpbp->dpb_secsize;
+  idx = (UWORD)((((LONG) Cluster1) * SIZEOF_CLST16) % dpbp->dpb_secsize);
 
   /* Finally, put the word into the buffer and mark the   */
   /* buffer as dirty.                                     */
@@ -177,21 +180,21 @@ UCOUNT link_fat16(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
   {
     /* update the free space count for returned     */
     /* cluster                                      */
-    if (dpbp->dpb_nfreeclst != UNKNCLUSTER)
+    if (dpbp->dpb_nfreeclst != UNKNCLSTFREE)
       ++dpbp->dpb_nfreeclst;
   }
   else
   {
     /* update the free space count for removed      */
     /* cluster                                      */
-    if (dpbp->dpb_nfreeclst != UNKNCLUSTER)
+    if (dpbp->dpb_nfreeclst != UNKNCLSTFREE)
       --dpbp->dpb_nfreeclst;
   }
 
   return SUCCESS;
 }
 
-UCOUNT link_fat12(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
+UCOUNT link_fat12(struct dpb FAR *dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
 {
   REG UBYTE FAR *fbp0,
     FAR * fbp1;
@@ -253,7 +256,7 @@ UCOUNT link_fat12(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
   else
   {
     *fbp0 = Cluster2 & 0xff;
-    *fbp1 = (*fbp1 & 0xf0) | (Cluster2 >> 8) & 0x0f;
+    *fbp1 = (*fbp1 & 0xf0) | ((Cluster2 >> 8) & 0x0f);
   }
 
   /* update the free space count                          */
@@ -261,14 +264,14 @@ UCOUNT link_fat12(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
   {
     /* update the free space count for returned     */
     /* cluster                                      */
-    if (dpbp->dpb_nfreeclst != UNKNCLUSTER)
+    if (dpbp->dpb_nfreeclst != UNKNCLSTFREE)
       ++dpbp->dpb_nfreeclst;
   }
   else
   {
     /* update the free space count for removed      */
     /* cluster                                      */
-    if (dpbp->dpb_nfreeclst != UNKNCLUSTER)
+    if (dpbp->dpb_nfreeclst != UNKNCLSTFREE)
       --dpbp->dpb_nfreeclst;
   }
 
@@ -277,7 +280,7 @@ UCOUNT link_fat12(struct dpb * dpbp, UCOUNT Cluster1, UCOUNT Cluster2)
 
 /* Given the disk parameters, and a cluster number, this function
    looks at the FAT, and returns the next cluster in the clain. */
-UWORD next_cluster(struct dpb * dpbp, REG UCOUNT ClusterNum)
+UWORD next_cluster(struct dpb FAR *dpbp, REG UCOUNT ClusterNum)
 {
   if (ISFAT12(dpbp))
     return next_cl12(dpbp, ClusterNum);
@@ -287,7 +290,7 @@ UWORD next_cluster(struct dpb * dpbp, REG UCOUNT ClusterNum)
     return LONG_LAST_CLUSTER;
 }
 
-UWORD next_cl16(struct dpb * dpbp, REG UCOUNT ClusterNum)
+UWORD next_cl16(struct dpb FAR *dpbp, REG UCOUNT ClusterNum)
 {
   UCOUNT idx;
   struct buffer FAR *bp;
@@ -309,7 +312,7 @@ UWORD next_cl16(struct dpb * dpbp, REG UCOUNT ClusterNum)
 
   /* form an index so that we can read the block as a     */
   /* byte array                                           */
-  idx = (((LONG) ClusterNum) * SIZEOF_CLST16) % dpbp->dpb_secsize;
+  idx = (ClusterNum * SIZEOF_CLST16) % dpbp->dpb_secsize;
 
   /* Get the cluster number,                              */
   fgetword((VOID FAR *) & (bp->b_buffer[idx]), (WORD FAR *) & RetCluster);
@@ -318,7 +321,7 @@ UWORD next_cl16(struct dpb * dpbp, REG UCOUNT ClusterNum)
   return RetCluster;
 }
 
-UWORD next_cl12(struct dpb * dpbp, REG UCOUNT ClusterNum)
+UWORD next_cl12(struct dpb FAR *dpbp, REG UCOUNT ClusterNum)
 {
   REG UBYTE FAR *fbp0,
     FAR * fbp1;
@@ -373,7 +376,7 @@ UWORD next_cl12(struct dpb * dpbp, REG UCOUNT ClusterNum)
   /* Now to unpack the contents of the FAT entry. Odd and */
   /* even bytes are packed differently.                   */
   if (ClusterNum & 0x01)
-    ClusterNum = ((*fbp0 & 0xf0) >> 4) | *fbp1 << 4;
+    ClusterNum = ((*fbp0 & 0xf0) >> 4) | (*fbp1 << 4);
   else
     ClusterNum = *fbp0 | ((*fbp1 & 0x0f) << 8);
 

kernel/fcbfns.c

@@ -35,6 +35,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.9  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.8  2001/03/30 22:27:42  bartoldeman
  * Saner lastdrive handling.
  *
@@ -131,7 +134,7 @@ fcb FAR *CommonFcbInit(xfcb FAR * lpExtFcb, BYTE * pszBuffer, COUNT * pCurDrive)
 void FcbNameInit(fcb FAR * lpFcb, BYTE * pszBuffer, COUNT * pCurDrive);
 sft FAR *FcbGetSft(COUNT SftIndex);
 VOID FcbNextRecord(fcb FAR * lpFcb);
-sft FAR *FcbGetFreeSft(WORD FAR * sft_idx);
+/* sft FAR *FcbGetFreeSft(WORD FAR * sft_idx); */
 BOOL FcbCalcRec(xfcb FAR * lpXfcb);
 VOID MoveDirInfo(dmatch FAR * lpDmatch, struct dirent FAR * lpDir);
 #else
@@ -140,7 +143,7 @@ fcb FAR *CommonFcbInit();
 void FcbNameInit();
 sft FAR *FcbGetSft();
 VOID FcbNextRecord();
-sft FAR *FcbGetFreeSft();
+/* sft FAR *FcbGetFreeSft(); */
 BOOL FcbCalcRec();
 VOID MoveDirInfo();
 #endif
@@ -150,12 +153,12 @@ static dmatch Dmatch;
 VOID FatGetDrvData(COUNT drive, COUNT FAR * spc, COUNT FAR * bps,
                    COUNT FAR * nc, BYTE FAR ** mdp)
 {
-  struct dpb *dpbp;
+  struct dpb FAR *dpbp;
 
   printf("FGDD\n");
 
   /* first check for valid drive                                  */
-    if ((drive < 0) || (drive >= lastdrive) || (drive >= NDEVS))
+  if ((UCOUNT)drive >= lastdrive)
   {
     *spc = -1;
     return;
@@ -168,7 +171,7 @@ VOID FatGetDrvData(COUNT drive, COUNT FAR * spc, COUNT FAR * bps,
 		*spc = -1;
 		return;
 	}
-  dpbp = (struct dpb *)CDSp->cds_table[drive].cdsDpb;
+  dpbp = CDSp->cds_table[drive].cdsDpb;
   dpbp->dpb_flags = -1;
   if ((media_check(dpbp) < 0))
   {
@@ -181,8 +184,8 @@ VOID FatGetDrvData(COUNT drive, COUNT FAR * spc, COUNT FAR * bps,
   *spc = dpbp->dpb_clsmask + 1;
   *bps = dpbp->dpb_secsize;
 
-  /* Point to the media desctriptor fotr this drive               */
+  /* Point to the media desctriptor for this drive               */
-  *mdp = &(dpbp->dpb_mdb);
+  *mdp = (BYTE FAR*)&(dpbp->dpb_mdb);
 }
 
 #define PARSE_SEP_STOP          0x01
@@ -347,6 +350,13 @@ static VOID FcbNextRecord(fcb FAR * lpFcb)
   }
 }
 
+static ULONG FcbRec(VOID)
+{
+  UWORD tmp = 128;
+    
+  return ((ULONG)lpFcb->fcb_cublock * tmp) + lpFcb->fcb_curec;
+}
+
 BOOL FcbRead(xfcb FAR * lpXfcb, COUNT * nErrorCode)
 {
   sft FAR *s;
@@ -367,8 +377,7 @@ BOOL FcbRead(xfcb FAR * lpXfcb, COUNT * nErrorCode)
 
   /* Now update the fcb and compute where we need to position     */
   /* to.                                                          */
-  lPosit = ((lpFcb->fcb_cublock * 128) + lpFcb->fcb_curec)
+  lPosit = FcbRec() * lpFcb->fcb_recsiz;
-      * lpFcb->fcb_recsiz;
   if (SftSeek(s, lPosit, 0) != SUCCESS)
   {
     *nErrorCode = FCB_ERR_EOF;
@@ -439,8 +448,7 @@ BOOL FcbWrite(xfcb FAR * lpXfcb, COUNT * nErrorCode)
 
   /* Now update the fcb and compute where we need to position     */
   /* to.                                                          */
-  lPosit = ((lpFcb->fcb_cublock * 128) + lpFcb->fcb_curec)
+  lPosit = FcbRec() * lpFcb->fcb_recsiz;
-      * lpFcb->fcb_recsiz;
   if (SftSeek(s, lPosit, 0) != SUCCESS)
   {
     *nErrorCode = FCB_ERR_EOF;
@@ -511,30 +519,27 @@ BOOL FcbGetFileSize(xfcb FAR * lpXfcb)
 
 BOOL FcbSetRandom(xfcb FAR * lpXfcb)
 {
-  LONG lPosit;
-
   /* Convert to fcb if necessary                                  */
   lpFcb = ExtFcbToFcb(lpXfcb);
 
   /* Now update the fcb and compute where we need to position     */
   /* to. */
-  lpFcb->fcb_rndm = (lpFcb->fcb_cublock * 128)
+  lpFcb->fcb_rndm = FcbRec();
-      + lpFcb->fcb_curec;
 
   return TRUE;
 }
 
 BOOL FcbCalcRec(xfcb FAR * lpXfcb)
 {
-  LONG lPosit;
+  UWORD div=128;
   
   /* Convert to fcb if necessary                                  */
   lpFcb = ExtFcbToFcb(lpXfcb);
 
   /* Now update the fcb and compute where we need to position     */
   /* to.                                                          */
-  lpFcb->fcb_cublock = lpFcb->fcb_rndm / 128;
+  lpFcb->fcb_cublock = lpFcb->fcb_rndm / div;
-  lpFcb->fcb_curec = lpFcb->fcb_rndm % 128;
+  lpFcb->fcb_curec = lpFcb->fcb_rndm & 127;
 
   return TRUE;
 }
@@ -551,7 +556,7 @@ BOOL FcbRandomBlockRead(xfcb FAR * lpXfcb, COUNT nRecords, COUNT * nErrorCode)
   while ((--nRecords > 0) && (*nErrorCode == 0));
 
   /* Now update the fcb                                           */
-  lpFcb->fcb_rndm = lpFcb->fcb_cublock * 128 + lpFcb->fcb_curec;
+  lpFcb->fcb_rndm = FcbRec();
 
   return TRUE;
 }
@@ -568,12 +573,13 @@ BOOL FcbRandomBlockWrite(xfcb FAR * lpXfcb, COUNT nRecords, COUNT * nErrorCode)
   while ((--nRecords > 0) && (*nErrorCode == 0));
 
   /* Now update the fcb                                           */
-  lpFcb->fcb_rndm = lpFcb->fcb_cublock * 128 + lpFcb->fcb_curec;
+  lpFcb->fcb_rndm = FcbRec();
 
   return TRUE;
 }
 
-BOOL FcbRandomRead(xfcb FAR * lpXfcb, COUNT * nErrorCode)
+BOOL FcbRandomIO(xfcb FAR * lpXfcb, COUNT * nErrorCode,
+                        BOOL (*FcbFunc)(xfcb FAR *, COUNT *))
 {
   UWORD uwCurrentBlock;
   UBYTE ucCurrentRecord;
@@ -586,57 +592,17 @@ BOOL FcbRandomRead(xfcb FAR * lpXfcb, COUNT * nErrorCode)
   uwCurrentBlock = lpFcb->fcb_cublock;
   ucCurrentRecord = lpFcb->fcb_curec;
 
-  FcbRead(lpXfcb, nErrorCode);
+  (*FcbFunc)(lpXfcb, nErrorCode);
-
-  lpFcb->fcb_cublock = uwCurrentBlock;
-  lpFcb->fcb_curec = ucCurrentRecord;
-  return TRUE;
-}
-
-BOOL FcbRandomWrite(xfcb FAR * lpXfcb, COUNT * nErrorCode)
-{
-  UWORD uwCurrentBlock;
-  UBYTE ucCurrentRecord;
-
-  FcbCalcRec(lpXfcb);
-
-  /* Convert to fcb if necessary                                  */
-  lpFcb = ExtFcbToFcb(lpXfcb);
-
-  uwCurrentBlock = lpFcb->fcb_cublock;
-  ucCurrentRecord = lpFcb->fcb_curec;
-
-  FcbWrite(lpXfcb, nErrorCode);
 
   lpFcb->fcb_cublock = uwCurrentBlock;
   lpFcb->fcb_curec = ucCurrentRecord;
   return TRUE;
 }
 
+/*
 static sft FAR *FcbGetFreeSft(WORD FAR * sft_idx)
-{
+see get_free_sft in dosfns.c
-  WORD sys_idx = 0;
+*/
-  sfttbl FAR *sp;
-
-  /* Get the SFT block that contains the SFT      */
-  for (sp = sfthead; sp != (sfttbl FAR *) - 1; sp = sp->sftt_next)
-  {
-    REG WORD i;
-
-    for (i = 0; i < sp->sftt_count; i++)
-    {
-      if (sp->sftt_table[i].sft_count == 0)
-      {
-        *sft_idx = sys_idx + i;
-        return (sft FAR *) & sp->sftt_table[sys_idx + i];
-      }
-    }
-    sys_idx += i;
-  }
-
-  /* If not found, return an error                */
-  return (sft FAR *) - 1;
-}
 
 BOOL FcbCreate(xfcb FAR * lpXfcb)
 {
@@ -646,7 +612,7 @@ BOOL FcbCreate(xfcb FAR * lpXfcb)
   COUNT FcbDrive;
 
   /* get a free system file table entry                           */
-  if ((sftp = FcbGetFreeSft((WORD FAR *) & sft_idx)) == (sft FAR *) - 1)
+  if ((sftp = get_free_sft((WORD FAR *) & sft_idx)) == (sft FAR *) - 1)
     return DE_TOOMANY;
 
   /* Build a traditional DOS file name                            */
@@ -654,45 +620,26 @@ BOOL FcbCreate(xfcb FAR * lpXfcb)
 
   /* check for a device                                           */
   dhp = IsDevice(PriPathName);
-  if (dhp)
+  if (dhp || ((sftp->sft_status = dos_creat(PriPathName, 0)) >= 0))
   {
     sftp->sft_count += 1;
     sftp->sft_mode = O_RDWR;
     sftp->sft_attrib = 0;
-        sftp->sft_flags =
+    sftp->sft_flags = dhp ?
-            ((dhp->dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE | SFT_FEOF;
+            ((dhp->dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE | SFT_FEOF : 0;
     sftp->sft_psp = cu_psp;
     fbcopy(lpFcb->fcb_fname, sftp->sft_name, FNAME_SIZE + FEXT_SIZE);
     sftp->sft_dev = dhp;
     lpFcb->fcb_sftno = sft_idx;
     lpFcb->fcb_curec = 0;
-        lpFcb->fcb_recsiz = 0;
+    lpFcb->fcb_recsiz = (dhp ? 0 : 128);
+    if (!dhp) lpFcb->fcb_drive = FcbDrive;
     lpFcb->fcb_fsize = 0;
     lpFcb->fcb_date = dos_getdate();
     lpFcb->fcb_time = dos_gettime();
     lpFcb->fcb_rndm = 0;
     return TRUE;
   }
-  sftp->sft_status = dos_creat(PriPathName, 0);
-  if (sftp->sft_status >= 0)
-  {
-    lpFcb->fcb_drive = FcbDrive;
-    lpFcb->fcb_sftno = sft_idx;
-    lpFcb->fcb_curec = 0;
-    lpFcb->fcb_recsiz = 128;
-    lpFcb->fcb_fsize = 0;
-    lpFcb->fcb_date = dos_getdate();
-    lpFcb->fcb_time = dos_gettime();
-    lpFcb->fcb_rndm = 0;
-    sftp->sft_count += 1;
-    sftp->sft_mode = O_RDWR;
-    sftp->sft_attrib = 0;
-    sftp->sft_flags = 0;
-    sftp->sft_psp = cu_psp;
-    fbcopy((BYTE FAR *) & lpFcb->fcb_fname, (BYTE FAR *) & sftp->sft_name, FNAME_SIZE + FEXT_SIZE);
-    return TRUE;
-  }
-  else
   return FALSE;
 }
 
@@ -707,11 +654,6 @@ static fcb FAR *ExtFcbToFcb(xfcb FAR * lpExtFcb)
 static fcb FAR *CommonFcbInit(xfcb FAR * lpExtFcb, BYTE * pszBuffer,
                               COUNT * pCurDrive)
 {
-  BYTE FAR *lpszFcbFname,
-   *lpszFcbFext;
-  COUNT nDrvIdx,
-    nFnameIdx,
-    nFextIdx;
   fcb FAR *lpFcb;
 
   /* convert to fcb if needed first                               */
@@ -726,10 +668,6 @@ static fcb FAR *CommonFcbInit(xfcb FAR * lpExtFcb, BYTE * pszBuffer,
 
 void FcbNameInit(fcb FAR * lpFcb, BYTE * pszBuffer, COUNT * pCurDrive)
 {
-  BYTE FAR *lpszFcbFname,
-    FAR * lpszFcbFext;
-    COUNT loop;
-
   /* Build a traditional DOS file name                            */
   if (lpFcb->fcb_drive != 0)
   {
@@ -779,7 +717,7 @@ BOOL FcbOpen(xfcb FAR * lpXfcb)
   COUNT FcbDrive;
 
   /* get a free system file table entry                           */
-  if ((sftp = FcbGetFreeSft((WORD FAR *) & sft_idx)) == (sft FAR *) - 1)
+  if ((sftp = get_free_sft((WORD FAR *) & sft_idx)) == (sft FAR *) - 1)
     return DE_TOOMANY;
 
   /* Build a traditional DOS file name                            */
@@ -807,7 +745,7 @@ BOOL FcbOpen(xfcb FAR * lpXfcb)
         return TRUE;
   }
   fbcopy((BYTE FAR *) & lpFcb->fcb_fname, (BYTE FAR *) & sftp->sft_name, FNAME_SIZE + FEXT_SIZE);
-  if ((FcbDrive < 0) || (FcbDrive >= lastdrive)) {
+  if ((UCOUNT)FcbDrive >= lastdrive) {
     return DE_INVLDDRV;
   }
   if (CDSp->cds_table[FcbDrive].cdsFlags & CDSNETWDRV) {
@@ -853,7 +791,7 @@ BOOL FcbDelete(xfcb FAR * lpXfcb)
   /* Build a traditional DOS file name                            */
   CommonFcbInit(lpXfcb, PriPathName, &FcbDrive);
 
-  if ((FcbDrive < 0) || (FcbDrive >= lastdrive)) {
+  if ((UCOUNT)FcbDrive >= lastdrive) {
     return DE_INVLDDRV;
   }
   current_ldt = &CDSp->cds_table[FcbDrive];
@@ -927,16 +865,8 @@ BOOL FcbRename(xfcb FAR * lpXfcb)
       /* First, expand the find match into fcb style  */
       /* file name entry                              */
       /* Fill with blanks first                       */
-      for (pToName = LocalFcb.fcb_fname, nIndex = 0;
+      memset(LocalFcb.fcb_fname, ' ', FNAME_SIZE);
-           nIndex < FNAME_SIZE; nIndex++)
+      memset(LocalFcb.fcb_fext, ' ', FEXT_SIZE);
-      {
-        *pToName++ = ' ';
-      }
-      for (pToName = LocalFcb.fcb_fext, nIndex = 0;
-           nIndex < FEXT_SIZE; nIndex++)
-      {
-        *pToName++ = ' ';
-      }
 
       /* next move in the file name while overwriting */
       /* the filler blanks                            */
@@ -1006,21 +936,14 @@ void MoveDirInfo(dmatch FAR * lpDmatch, struct dirent FAR * lpDir)
   /* First, expand the find match into dir style  */
   /* file name entry                              */
   /* Fill with blanks first                       */
-  for (lpToName = lpDir->dir_name, nIndex = 0;
+
-       nIndex < FNAME_SIZE; nIndex++)
+  fmemset(lpDir->dir_name, ' ', FNAME_SIZE);
-  {
+  fmemset(lpDir->dir_ext , ' ', FEXT_SIZE );
-    *lpToName++ = ' ';
-  }
-  for (lpToName = lpDir->dir_ext, nIndex = 0;
-       nIndex < FEXT_SIZE; nIndex++)
-  {
-    *lpToName++ = ' ';
-  }
 
   /* next move in the file name while overwriting */
   /* the filler blanks                            */
   lpszFrom = lpDmatch->dm_name;
-  lpToName = lpDir->dir_name;
+  lpToName = (BYTE FAR *)lpDir->dir_name;
   for (nIndex = 0; nIndex < FNAME_SIZE; nIndex++)
   {
     if (*lpszFrom != 0 && *lpszFrom != '.')
@@ -1033,7 +956,7 @@ void MoveDirInfo(dmatch FAR * lpDmatch, struct dirent FAR * lpDir)
   {
     if (*lpszFrom == '.')
       ++lpszFrom;
-    lpToName = lpDir->dir_ext;
+    lpToName = (BYTE FAR *)lpDir->dir_ext;
     for (nIndex = 0; nIndex < FEXT_SIZE; nIndex++)
     {
       if (*lpszFrom != '\0')
@@ -1098,10 +1021,8 @@ BOOL FcbClose(xfcb FAR * lpXfcb)
 
 BOOL FcbFindFirst(xfcb FAR * lpXfcb)
 {
-  BYTE FAR *lpOldDta;
   BYTE FAR *lpDir;
-  COUNT nIdx,
+  COUNT FcbDrive;
-    FcbDrive;
   psp FAR *lpPsp = MK_FP(cu_psp, 0);
 
   /* First, move the dta to a local and change it around to match */
@@ -1152,10 +1073,8 @@ BOOL FcbFindFirst(xfcb FAR * lpXfcb)
 
 BOOL FcbFindNext(xfcb FAR * lpXfcb)
 {
-  BYTE FAR *lpOldDta;
   BYTE FAR *lpDir;
-  COUNT nIdx,
+  COUNT FcbDrive;
-    FcbDrive;
   psp FAR *lpPsp = MK_FP(cu_psp, 0);
 
   /* First, move the dta to a local and change it around to match */

kernel/globals.h

@@ -36,6 +36,9 @@ static BYTE *Globals_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.11  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.10  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -226,7 +229,6 @@ static BYTE *Globals_hRcsId = "$Id$";
 #define PARSE_MAX       67      /* maximum # of bytes in path   */
 #define NFILES          16      /* number of files in table     */
 #define NFCBS           16      /* number of fcbs               */
-#define NDEVS           26      /* number of supported devices  */
 #define NSTACKS         8       /* number of stacks             */
 #define NLAST           6       /* last drive                   */
 #define NAMEMAX         PARSE_MAX	/* Maximum path for CDS         */
@@ -476,7 +478,7 @@ extern sfttbl
   FAR * FCBp;                   /* FCB table pointer                    */
 extern WORD
   nprotfcb;                     /* number of protected fcbs             */
-extern BYTE
+extern UBYTE
   nblkdev,                      /* number of block devices              */
   lastdrive,                    /* value of last drive                  */
   uppermem_link;                /* UMB Link flag */
@@ -615,9 +617,6 @@ GLOBAL iregs error_regs;        /* registers for dump                   */
 GLOBAL WORD
   dump_regs;                    /* dump registers of bad call           */
 
-GLOBAL struct dpb
-  blk_devices[NDEVS];
-
 GLOBAL struct f_node FAR
 * f_nodes;                      /* pointer to the array                 */
 
@@ -635,7 +634,7 @@ GLOBAL iregs
   FAR * kstackp;                /* kernel stack                         */
 
 /* Start of configuration variables                                     */
-GLOBAL struct config
+extern struct config
 {
   UBYTE cfgBuffers;             /* number of buffers in the system      */
   UBYTE cfgFiles;               /* number of available files            */
@@ -643,7 +642,7 @@ GLOBAL struct config
   UBYTE cfgProtFcbs;            /* number of protected FCBs             */
   BYTE cfgInit[NAMEMAX];        /* init of command.com          */
   BYTE cfgInitTail[NAMEMAX];    /* command.com's tail           */
-  BYTE cfgLastdrive;            /* last drive                           */
+  UBYTE cfgLastdrive;           /* last drive                           */
   BYTE cfgStacks;               /* number of stacks                     */
   UWORD cfgStackSize;           /* stacks size for each stack           */
    /* COUNTRY=
@@ -658,7 +657,7 @@ GLOBAL struct config
   VOID FAR *cfgCSYS_data;      /* where the loaded data is for PostConfig() */
   UBYTE cfgP_0_startmode;      /* load command.com high or not */
 } Config
-#ifdef MAIN
+#ifdef CONFIG
 =
 {
   NUMBUFF,
@@ -704,11 +703,7 @@ CriticalError(
 VOID FAR CharMapSrvc(VOID);
 VOID FAR set_stack(VOID);
 VOID FAR restore_stack(VOID);
-#ifndef IN_INIT_MOD
 WORD execrh(request FAR *, struct dhdr FAR *);
-#endif
-VOID FAR init_call_execrh(request FAR *, struct dhdr FAR *);
-VOID FAR reloc_call_execrh(request FAR *, struct dhdr FAR *);
 VOID exit(COUNT);
 /*VOID INRPT FAR handle_break(VOID); */
 VOID tmark(VOID);
@@ -783,7 +778,7 @@ VOID fputbyte();
 /*#define is_leap_year(y) ((y) & 3 ? 0 : (y) % 100 ? 1 : (y) % 400 ? 0 : 1) */
 
 /* ^Break handling */
-void FAR _init_call_spawn_int23(void);         /* procsupt.asm */
+void spawn_int23(void);         /* procsupt.asm */
 int control_break(void);        /* break.c */
 void handle_break(void);        /* break.c */
 

kernel/init-mod.h

@@ -12,11 +12,6 @@
  */
 #define DosExec     reloc_call_DosExec
 #define DosMemAlloc	reloc_call_DosMemAlloc
-#define dos_close   reloc_call_dos_close
-#define dos_getdate	reloc_call_dos_getdate
-#define dos_gettime	reloc_call_dos_gettime
-#define dos_open    reloc_call_dos_open
-#define dos_read    reloc_call_dos_read
 #define execrh      reloc_call_execrh
 #define fatal       reloc_call_fatal
 #define fmemcpy     reloc_call_fmemcpy
@@ -29,3 +24,5 @@
 #define strlen      reloc_call_strlen
 #define WritePCClock	reloc_call_WritePCClock
 #define DaysFromYearMonthDay reloc_call_DaysFromYearMonthDay
+#define p_0         reloc_call_p_0
+

kernel/inithma.c

@@ -75,6 +75,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.3  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.2  2001/03/30 19:30:06  bartoldeman
  * Misc fixes and implementation of SHELLHIGH. See history.txt for details.
  *
@@ -92,11 +95,11 @@ WORD HMAFree;                 /* first byte in HMA not yet used      */
  
 
 extern BYTE FAR * FAR XMSDriverAddress;
-extern FAR _EnableA20();
+extern FAR _EnableA20(VOID);
-extern FAR _DisableA20();
+extern FAR _DisableA20(VOID);
 
 
-void FAR *DetectXMSDriver();
+extern void FAR *DetectXMSDriver(VOID);
  
 #ifdef DEBUG  
     #define int3() __int__(3);
@@ -105,7 +108,7 @@ void FAR *DetectXMSDriver();
 #endif        
 
 
-#if defined( DEBUG ) || 1               /* experimental kernel !! */
+#ifdef DEBUG
     #define HMAInitPrintf(x) printf x
 #else
     #define HMAInitPrintf(x)
@@ -184,7 +187,7 @@ void _DisableHMA()
     if so, it simply leaves it on
 */
 
-int EnableHMA()
+int EnableHMA(VOID)
 {
     
     _EnableA20();
@@ -263,12 +266,13 @@ int MoveKernelToHMA()
     /* A) for debugging purpose, suppress this, 
           if any shift key is pressed 
     */
-
+#ifdef DEBUG
     if (KeyboardShiftState() & 0x0f)
     {
         printf("Keyboard state is %0x, NOT moving to HMA\n",KeyboardShiftState()); 
         return FALSE;
     }
+#endif
     
     /* B) check out, if we can have HMA */        
 
@@ -288,7 +292,7 @@ int MoveKernelToHMA()
         
                  len = FP_OFF(_HMATextEnd) - FP_OFF(_HMATextStart);
     
-                  HMASource = _HMATextStart;
+                  HMASource = (UBYTE FAR *)_HMATextStart;
     
     
         len += FP_OFF(HMASource) & 0x000f;
@@ -340,7 +344,6 @@ int MoveKernelToHMA()
 
         struct RelocationTable FAR *rp, rtemp ;
         
-        
         UWORD HMATextSegment = FP_SEG( _HMATextStart );
           
         /* verify, that all entries are valid */  
@@ -371,8 +374,46 @@ int MoveKernelToHMA()
             rel->callNear   = rtemp.callNear;
             rel->callOffset = rtemp.callOffset+5; /* near calls are relative */
         }
+    }
+    {
+        struct initRelocationTable {
+            UBYTE callNear;
+            UWORD callOffset;
+            UBYTE jmpFar;
+            UWORD jmpOffset;
+            UWORD jmpSegment;
+        };
+        extern struct initRelocationTable
+                    FAR _HMAinitRelocationTableStart[], 
+                    FAR _HMAinitRelocationTableEnd[];
+        struct initRelocationTable FAR *rp, FAR *endrp;
         
+        /* verify, that all entries are valid */  
         
+        UWORD HMATextSegment = FP_SEG( _HMATextStart );
+        endrp = MK_FP(_CS, FP_OFF(_HMAinitRelocationTableEnd));
+
+        for (rp = MK_FP(_CS, FP_OFF(_HMAinitRelocationTableStart)); rp < endrp; rp++)
+        {
+            if (
+                rp->callNear   != 0xe8              || /* call NEAR */
+                rp->jmpFar     != 0xea              || /* jmp FAR */
+                rp->jmpSegment != HMATextSegment    || /* will only relocate HMA_TEXT */
+                0)
+            {
+                printf("illegal init relocation entry # %d\n",
+                       FP_OFF(rp) - FP_OFF(_HMAinitRelocationTableStart));
+                goto errorReturn;
+            }            
+        }
+          
+        /* OK, all valid, go to relocate*/  
+        
+        for (rp = MK_FP(_CS, FP_OFF(_HMAinitRelocationTableStart)); rp < endrp; rp++)
+        {
+            rp->jmpSegment = HMASEGMENT;
+            rp->callOffset = rp->callOffset-5; /* near calls are relative */
+        }
     }    
 
     {
@@ -414,7 +455,7 @@ errorReturn:
 
     so: we install this after all drivers have been loaded
 */
-void InstallVDISK()
+void InstallVDISK(VOID)
     {
         static struct {                /* Boot-Sektor of a RAM-Disk */
  	                 UBYTE dummy1[3];   /* HIMEM.SYS uses 3, but FDXMS uses 2 */
@@ -447,7 +488,6 @@ void InstallVDISK()
 
 
 int  init_call_XMScall( void FAR * driverAddress, UWORD ax, UWORD dx);
-void init_call_intr(int intrnr, iregs *rp);
 
 
 /*
@@ -455,7 +495,7 @@ void init_call_intr(int intrnr, iregs *rp);
     it might be HIMEM.SYS we just loaded.
 */
 
-void ClaimHMA()
+void ClaimHMA(VOID)
 {
     void FAR *pXMS;
 
@@ -476,21 +516,6 @@ void ClaimHMA()
         }
     }        
 }
-void FAR *DetectXMSDriver()
-{
-    iregs regs;
-
-    regs.a.x = 0x4300;    /* XMS installation check */
-    init_call_intr(0x2f, &regs);
-    
-    if ((regs.a.x & 0xff) != 0x80) return NULL;
-    
-    regs.a.x = 0x4310;    /* XMS get driver address */
-    init_call_intr(0x2f, &regs);
-    
-    return MK_FP(regs.es, regs.b.x);
-}
-
 
 /*
     this should be called, after each device driver 

kernel/inthndlr.c

@@ -26,6 +26,7 @@
 /* Cambridge, MA 02139, USA.                                    */
 /*                                                              */
 /****************************************************************/
+#define MAIN
 
 #include "portab.h"
 #include "globals.h"
@@ -36,6 +37,9 @@ BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.20  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.19  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -345,10 +349,6 @@ VOID int21_service(iregs FAR * r)
 
   p->ps_stack = (BYTE FAR *) r;
 
-  
-        
-  
-
 #ifdef DEBUG
   if (bDumpRegs)
   {
@@ -359,6 +359,10 @@ VOID int21_service(iregs FAR * r)
   }
 #endif
 
+  if(r->AH >=0x38 && r->AH <= 0x4F)
+      CLEAR_CARRY_FLAG();
+      /* Clear carry by default for these functions */
+
 dispatch:
 
   /* Check for Ctrl-Break */
@@ -385,7 +389,6 @@ dispatch:
   {
       /* int 21h common error handler                                 */
     case 0x64:
-    case 0x6b:
     error_invalid:
       r->AX = -DE_INVLDFUNC;
       goto error_out;
@@ -393,7 +396,7 @@ dispatch:
       r->AX = -rc;
     error_out:
       CritErrCode = r->AX;  /* Maybe set */
-      r->FLAGS |= FLG_CARRY;
+      SET_CARRY_FLAG();
       break;
 
        /* case 0x00:   --> Simulate a DOS-4C-00 */
@@ -412,32 +415,40 @@ dispatch:
 
       /* Auxiliary Input                                                      */
     case 0x03:
-      r->AL = _sti();
+     {
+      COUNT scratch;
+      GenericRead(STDAUX, 1, (BYTE FAR *) & r->AL, (COUNT FAR *) & scratch, TRUE);
       break;
+     }
 
       /* Auxiliary Output                                                     */
     case 0x04:
-      sto(r->DL);
+     {
+      COUNT scratch;
+      DosWrite(STDAUX, 1, (BYTE FAR *) & r->DL, (COUNT FAR *) &scratch);
       break;
-
+     }
       /* Print Character                                                      */
     case 0x05:
-      sto(r->DL);
+     {       
+      COUNT scratch;       
+      DosWrite(STDPRN, 1, (BYTE FAR *) & r->DL, (COUNT FAR *) &scratch);
       break;      
+     }
 
-      /* Direct Cosole I/O                                            */
+      /* Direct Console I/O                                            */
     case 0x06:
       if (r->DL != 0xff)
         sto(r->DL);
       else if (StdinBusy())
       {
-        r->FLAGS &= ~FLG_ZERO;
+        r->AL = 0x00;
-        r->AL = _sti();
+        r->FLAGS |= FLG_ZERO;
       }
       else
       {
-        r->AL = 0x00;
+        r->FLAGS &= ~FLG_ZERO;
-        r->FLAGS |= FLG_ZERO;
+        r->AL = _sti();
       }
       break;
 
@@ -457,7 +468,7 @@ dispatch:
         q = FP_DS_DX;
         while (*q != '$')
           ++q;
-        DosWrite(STDOUT, q - (BYTE FAR*)FP_DS_DX, FP_DS_DX, (COUNT FAR *) & scratch);
+        DosWrite(STDOUT, FP_OFF(q) - FP_OFF(FP_DS_DX), FP_DS_DX, (COUNT FAR *) & scratch);
       }
       r->AL = '$';
       break;
@@ -587,6 +598,7 @@ dispatch:
 #ifndef TSC
     case 0x61:
 #endif
+    case 0x6b:
       r->AL = 0;
       break;
 
@@ -639,7 +651,7 @@ dispatch:
     case 0x1f:
       if (default_drive < lastdrive)
       {
-        struct dpb FAR *dpb = (struct dpb FAR *)CDSp->cds_table[default_drive].cdsDpb;
+        struct dpb FAR *dpb = CDSp->cds_table[default_drive].cdsDpb;
         if (dpb == 0)
         {
           r->AL = 0xff;
@@ -660,7 +672,7 @@ dispatch:
       /* Random read using FCB */
     case 0x21:
       {
-        if (FcbRandomRead(FP_DS_DX, &CritErrCode))
+        if (FcbRandomIO(FP_DS_DX, &CritErrCode, FcbRead))
           r->AL = 0;
         else
           r->AL = CritErrCode;
@@ -670,7 +682,7 @@ dispatch:
       /* Random write using FCB */
     case 0x22:
       {
-        if (FcbRandomWrite(FP_DS_DX, &CritErrCode))
+        if (FcbRandomIO(FP_DS_DX, &CritErrCode, FcbWrite))
           r->AL = 0;
         else
           r->AL = CritErrCode;
@@ -851,8 +863,7 @@ dispatch:
         struct dpb FAR *dpb = CDSp->cds_table[r->DL].cdsDpb;
         if (dpb == 0 ||
             (CDSp->cds_table[r->DL].cdsFlags & CDSNETWDRV) ||
-            FP_SEG(dpb) != FP_SEG(&dpb) || /* check if it's a NEAR pointer */
+             media_check(dpb) < 0)
-             media_check((struct dpb *)dpb) < 0)
         {
           r->AL = 0xff;
           CritErrCode = 0x0f;
@@ -869,6 +880,10 @@ dispatch:
         }
       break;
 
+/*
+    case 0x33:  
+    see int21_syscall
+*/
       /* Get InDOS flag                                               */
     case 0x34:
       {
@@ -894,7 +909,7 @@ dispatch:
       /* Dos Get Disk Free Space                                      */
     case 0x36:
       DosGetFree(
-                  (COUNT) r->DL,
+                  r->DL,
                   (COUNT FAR *) & r->AX,
                   (COUNT FAR *) & r->BX,
                   (COUNT FAR *) & r->CX,
@@ -942,7 +957,6 @@ dispatch:
         		goto error_invalid;
         	r->AX = r->BX = cntry;
         }
-        CLEAR_CARRY_FLAG();
       }
       break;
 
@@ -951,10 +965,6 @@ dispatch:
       rc = DosMkdir((BYTE FAR *) FP_DS_DX);
       if (rc != SUCCESS)
         goto error_exit;
-      else
-      {
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Dos Remove Directory                                         */
@@ -962,20 +972,12 @@ dispatch:
       rc = DosRmdir((BYTE FAR *) FP_DS_DX);
       if (rc != SUCCESS)
         goto error_exit;
-      else
-      {
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Dos Change Directory                                         */
     case 0x3b:
       if ((rc = DosChangeDir((BYTE FAR *) FP_DS_DX)) < 0)
         goto error_exit;
-      else
-      {
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Dos Create File                                              */
@@ -983,10 +985,7 @@ dispatch:
       if ((rc = DosCreat(FP_DS_DX, r->CX)) < 0)
         goto error_exit;
       else
-      {
         r->AX = rc;
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Dos Open                                                     */
@@ -994,61 +993,38 @@ dispatch:
       if ((rc = DosOpen(FP_DS_DX, r->AL)) < 0)
         goto error_exit;
       else
-      {
         r->AX = rc;
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Dos Close                                                    */
     case 0x3e:
       if ((rc = DosClose(r->BX)) < 0)
         goto error_exit;
-      else
-        CLEAR_CARRY_FLAG();
       break;
 
       /* Dos Read                                                     */
     case 0x3f:
-      rc = DosRead(r->BX, r->CX, FP_DS_DX, (COUNT FAR *) & rc1);
+      rc1 = DosRead(r->BX, r->CX, FP_DS_DX, (COUNT FAR *) & rc);
-
+      if (rc != SUCCESS)
-      if (rc1 != SUCCESS)
+        goto error_exit;
-      {
-        r->AX = -rc1;
-        goto error_out;
-      }
       else
-      {
+        r->AX = rc1;
-        CLEAR_CARRY_FLAG();
-        r->AX = rc;
-      }
       break;
 
       /* Dos Write                                                    */
     case 0x40:
-      rc = DosWrite(r->BX, r->CX, FP_DS_DX, (COUNT FAR *) & rc1);
+      rc1 = DosWrite(r->BX, r->CX, FP_DS_DX, (COUNT FAR *) & rc);
-      if (rc1 != SUCCESS)
+      if (rc != SUCCESS)
-      {
+        goto error_exit;
-        r->AX = -rc1;
-        goto error_out;
-      }
       else
-      {
+        r->AX = rc1;
-        CLEAR_CARRY_FLAG();
-        r->AX = rc;
-      }
       break;
 
       /* Dos Delete File                                              */
     case 0x41:
       rc = DosDelete((BYTE FAR *) FP_DS_DX);
       if (rc < 0)
-      {
+        goto error_exit;
-        r->AX = -rc;
-        goto error_out;
-      }
-      else
-        CLEAR_CARRY_FLAG();
       break;
 
       /* Dos Seek                                                     */
@@ -1059,7 +1035,6 @@ dispatch:
       {
         r->DX = (lrc >> 16);
         r->AX = (UWORD)lrc;
-        CLEAR_CARRY_FLAG();
       }
       break;
 
@@ -1069,41 +1044,25 @@ dispatch:
       {
         case 0x00:
           rc = DosGetFattr((BYTE FAR *) FP_DS_DX, (UWORD FAR *) & r->CX);
-          if (rc != SUCCESS)
-            goto error_exit;
-          else
-          {
-            CLEAR_CARRY_FLAG();
-          }
           break;
 
         case 0x01:
           rc = DosSetFattr((BYTE FAR *) FP_DS_DX, (UWORD FAR *) & r->CX);
-          if (rc != SUCCESS)
-            goto error_exit;
-          else
-            CLEAR_CARRY_FLAG();
           break;
 
         default:
           goto error_invalid;
       }
+      if (rc != SUCCESS)
+        goto error_exit;
       break;
 
       /* Device I/O Control                                           */
     case 0x44:
-      {
+      rc = DosDevIOctl(r);
-        rc = DosDevIOctl(r, (COUNT FAR *) & rc1);
 
-        if (rc1 != SUCCESS)
+      if (rc != SUCCESS)
-        {
+        goto error_exit;
-          r->AX = -rc1;
-          goto error_out;
-        }
-        else{
-        CLEAR_CARRY_FLAG();
-        }
-      }
       break;
 
       /* Duplicate File Handle                                        */
@@ -1112,10 +1071,7 @@ dispatch:
       if (rc < SUCCESS)
         goto error_exit;
       else
-      {
-        CLEAR_CARRY_FLAG();
         r->AX = rc;
-      }
       break;
 
       /* Force Duplicate File Handle                                  */
@@ -1123,8 +1079,6 @@ dispatch:
       rc = DosForceDup(r->BX, r->CX);
       if (rc < SUCCESS)
         goto error_exit;
-      else
-        CLEAR_CARRY_FLAG();
       break;
 
       /* Get Current Directory                                        */
@@ -1132,10 +1086,7 @@ dispatch:
       if ((rc = DosGetCuDir(r->DL, MK_FP(r->DS, r->SI))) < 0)
         goto error_exit;
       else
-      {
-        CLEAR_CARRY_FLAG();
         r->AX = 0x0100;         /*jpp: from interrupt list */
-      }
       break;
 
       /* Allocate memory */
@@ -1146,18 +1097,13 @@ dispatch:
         goto error_exit;
       }
       else
-      {
         ++(r->AX);              /* DosMemAlloc() returns seg of MCB rather than data */
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Free memory */
     case 0x49:
       if ((rc = DosMemFree((r->ES) - 1)) < 0)
         goto error_exit;
-      else
-        CLEAR_CARRY_FLAG();
       break;
 
       /* Set memory block size */
@@ -1182,8 +1128,6 @@ dispatch:
 #endif
           goto error_exit;
         }
-        else
-          CLEAR_CARRY_FLAG();
 
         break;
       }
@@ -1195,8 +1139,6 @@ dispatch:
       if ((rc = DosExec(r->AL, MK_FP(r->ES, r->BX), FP_DS_DX))
           != SUCCESS)
         goto error_exit;
-      else
-        CLEAR_CARRY_FLAG();
       break;
 
       /* Terminate Program                                            */
@@ -1242,40 +1184,31 @@ dispatch:
 
       /* Dos Find First                                               */
     case 0x4e:
-      {
       /* dta for this call is set on entry.  This     */
       /* needs to be changed for new versions.        */
       if ((rc = DosFindFirst((UCOUNT) r->CX, (BYTE FAR *) FP_DS_DX)) < 0)
         goto error_exit;
-        else
-        {
       r->AX = 0;
-          CLEAR_CARRY_FLAG();
-        }
-      }
       break;
 
       /* Dos Find Next                                                */
     case 0x4f:
-      {
       /* dta for this call is set on entry.  This     */
       /* needs to be changed for new versions.        */
       if ((rc = DosFindNext()) < 0)
       {
-          r->AX = -rc;
+        if (rc == DE_FILENOTFND)
-
+          rc = DE_NFILES;
-          if (r->AX == 2)
+        goto error_exit;
-            r->AX = 18;
-          goto error_out;
       }
       else
-        {
-          CLEAR_CARRY_FLAG();
         r->AX = -SUCCESS;
-        }
-      }
       break;
-
+/*
+    case 0x50:  
+    case 0x51:
+    see int21_syscall
+*/
       /* ************UNDOCUMENTED************************************* */
       /* Get List of Lists                                            */
     case 0x52:
@@ -1288,6 +1221,11 @@ dispatch:
       }
       break;
 
+    case 0x53:
+      /*  DOS 2+ internal - TRANSLATE BIOS PARAMETER BLOCK TO DRIVE PARAM BLOCK */
+      bpb_to_dpb((bpb FAR *)MK_FP(r->DS, r->SI), (struct dpb FAR *)MK_FP(r->ES, r->BP));
+      break;
+      
       /* Get verify state                                             */
     case 0x54:
       r->AL = (verify_ena ? TRUE : FALSE);
@@ -1306,13 +1244,12 @@ dispatch:
       if (rc < SUCCESS)
         goto error_exit;
       else
-      {
         CLEAR_CARRY_FLAG();
-      }
       break;
 
       /* Get/Set File Date and Time                                   */
     case 0x57:
+      CLEAR_CARRY_FLAG();
       switch (r->AL)
       {
         case 0x00:
@@ -1322,8 +1259,6 @@ dispatch:
                             (time FAR *) & r->CX);	/* FileTime             */
           if (rc < SUCCESS)
             goto error_exit;
-          else
-            CLEAR_CARRY_FLAG();
           break;
 
         case 0x01:
@@ -1333,8 +1268,6 @@ dispatch:
                             (time FAR *) & r->CX);	/* FileTime             */
           if (rc < SUCCESS)
             goto error_exit;
-          else
-            CLEAR_CARRY_FLAG();
           break;
 
         default:
@@ -1344,6 +1277,7 @@ dispatch:
 
       /* Get/Set Allocation Strategy                                  */
     case 0x58:
+      CLEAR_CARRY_FLAG();
       switch (r->AL)
       {
         case 0x00:
@@ -1358,7 +1292,6 @@ dispatch:
             case LAST_FIT:
             case LAST_FIT_U:
             case LAST_FIT_UO:
-            case LARGEST:
             case BEST_FIT:
             case BEST_FIT_U:
             case BEST_FIT_UO:
@@ -1372,7 +1305,6 @@ dispatch:
                 goto error_invalid;
             }
         }
-            CLEAR_CARRY_FLAG();
             break;
 
         case 0x02:
@@ -1419,7 +1351,7 @@ dispatch:
 
       /* Create New File */
     case 0x5b:
-      if ((rc = DosOpen(FP_DS_DX, 0)) >= 0)
+      if (!IsDevice(FP_DS_DX) && (rc = DosOpen(FP_DS_DX, 0)) >= 0)
       {
         DosClose(rc);
         r->AX = 80;
@@ -1445,10 +1377,8 @@ dispatch:
          (((unsigned long)r->CX)<<16)|(((unsigned long)r->DX)&0xffffL),
          (((unsigned long)r->SI)<<16)|(((unsigned long)r->DI)&0xffffL),
          ((r->AX & 0xff) != 0))) != 0)
-          r->FLAGS |= FLG_CARRY;
+          goto error_exit;
-      else
       CLEAR_CARRY_FLAG();
-      r->AX = -rc;
       break;
 /* /// End of additions for SHARE.  - Ron Cemer */
 
@@ -1482,17 +1412,11 @@ dispatch:
         case 0x07:
         case 0x08:
         case 0x09:
-	  {
+	  rc = -int2f_Remote_call(REM_PRINTREDIR, 0, 0, r->DX, 0, 0, (MK_FP(0, Int21AX)));
-	    COUNT result;
+	  if (rc != SUCCESS)
-	    result = int2f_Remote_call(REM_PRINTREDIR, 0, 0, r->DX, 0, 0, (MK_FP(0, Int21AX)));
+            goto error_exit;
-	    r->AX = result;
-	    if (result != SUCCESS) {
-          goto error_out;
-	    } else {
           CLEAR_CARRY_FLAG();
-	    }
           break;
-	  }
         default:
           goto error_invalid;
       }
@@ -1511,17 +1435,15 @@ dispatch:
           break;
 
         default:
-	  {
+          rc = -int2f_Remote_call(REM_PRINTSET, r->BX, r->CX, r->DX, (MK_FP(r->ES, r->DI)), r->SI, (MK_FP(r->DS, Int21AX)));
-	    COUNT result;
+	  if (rc != SUCCESS) goto error_exit;
-            result = int2f_Remote_call(REM_PRINTSET, r->BX, r->CX, r->DX, (MK_FP(r->ES, r->DI)), r->SI, (MK_FP(r->DS, Int21AX)));
+          r->AX=SUCCESS;
-	    r->AX = result;
-	    if (result != SUCCESS) goto error_out;
           break;
       }
-      }
       break;
 
     case 0x5f:
+      CLEAR_CARRY_FLAG();
       switch (r->AL)
       {
         case 0x07:
@@ -1537,28 +1459,20 @@ dispatch:
           break;
 
         default:
-	  {
+          rc = -int2f_Remote_call(REM_DOREDIRECT, r->BX, r->CX, r->DX,
-	    COUNT result;
+                                 (MK_FP(r->ES, r->DI)), r->SI, (MK_FP(r->DS, Int21AX)));
-            result = int2f_Remote_call(REM_DOREDIRECT, r->BX, r->CX, r->DX, (MK_FP(r->ES, r->DI)), r->SI, (MK_FP(r->DS, Int21AX)));
+	  if (rc != SUCCESS)
-	    r->AX = result;
+            goto error_exit;
-	    if (result != SUCCESS) {
+          r->AX=SUCCESS;
-            goto error_out;
-	    } else {
-	  	    CLEAR_CARRY_FLAG();
-	    }
           break;
       }
-      }
       break;
 
     case 0x60:                 /* TRUENAME */
+      CLEAR_CARRY_FLAG();
       if ((rc = truename(MK_FP(r->DS, r->SI),
                       adjust_far(MK_FP(r->ES, r->DI)), TRUE)) != SUCCESS)
         goto error_exit;
-      else
-      {
-        CLEAR_CARRY_FLAG();
-      }
       break;
 
 #ifdef TSC
@@ -1582,10 +1496,11 @@ dispatch:
       break;
 #endif
 
-      /* UNDOCUMENTED: return current psp                             */
+      /* UNDOCUMENTED: return current psp                             
-    case 0x62:
+    case 0x62: is in int21_syscall
       r->BX = cu_psp;
       break;
+      */
       
       /* UNDOCUMENTED: Double byte and korean tables                  */
     case 0x63:
@@ -1606,6 +1521,10 @@ dispatch:
 #endif
         break;
       }
+/*
+    case 0x64:
+      see above (invalid)
+*/      
 
       /* Extended country info                                        */
     case 0x65:
@@ -1649,6 +1568,7 @@ dispatch:
 		CLEAR_CARRY_FLAG();
       break;
       
+
       /* Code Page functions */
     case 0x66: {
     	int rc;
@@ -1675,13 +1595,12 @@ dispatch:
       if ((rc = SetJFTSize(r->BX)) != SUCCESS)
         goto error_exit;
       else
-      {
         CLEAR_CARRY_FLAG();
-      }
       break;
 
-      /* Flush file buffer -- dummy function right now.  */
+      /* Flush file buffer -- COMMIT FILE -- dummy function right now.  */
     case 0x68:
+    case 0x6a:
       CLEAR_CARRY_FLAG();
       break;
 
@@ -1698,31 +1617,28 @@ dispatch:
             case 0x00:
             r->AL = 0x0d;
             r->CX = 0x0866;
-            rc = DosDevIOctl(r, (COUNT FAR *) & rc1);
+            rc = DosDevIOctl(r);
             break;
 
             case 0x01:
             r->AL = 0x0d;
             r->CX = 0x0846;
-            rc = DosDevIOctl(r, (COUNT FAR *) & rc1);
+            rc = DosDevIOctl(r);
             break;
         }
         r->CX = saveCX;
-        if (rc1 != SUCCESS)
+        if (rc != SUCCESS)
-        {
+          goto error_exit;
-          r->AX = -rc1;
-          goto error_out;
-        }
-        else
-        {
         CLEAR_CARRY_FLAG();
-        }
         break;
       }
       else
         r->AL = 0xFF;
       break;
-
+/*
+    case 0x6a: see case 0x68
+    case 0x6b: dummy func: return AL=0
+*/    
 #if 0
     /* Extended Open-Creat, not fully functional.*/
     case 0x6c:
@@ -1812,6 +1728,9 @@ dispatch:
         default:
             goto error_invalid;
        }
+
+    /* case 0x6d and above not implemented : see default; return AL=0 */
+        
 #endif
   }
 

kernel/intr.asm

@@ -96,8 +96,8 @@ _int3:
                 retf
 
 
-
 segment	INIT_TEXT
+%if 0
 ;
 ;       void init_call_intr(nr, rp)
 ;       REG int nr
@@ -159,7 +159,7 @@ init_intr?1:
                 ret
 
 
-
+%endif
 ;
 ; int init_call_XMScall( (WORD FAR * driverAddress)(), WORD AX, WORD DX)
 ;
@@ -177,4 +177,83 @@ _init_call_XMScall:
             pop  bp
             ret
             
+; void FAR *DetectXMSDriver(VOID)
+global _DetectXMSDriver
+_DetectXMSDriver:
+        mov ax, 4300h
+        int 2fh                 ; XMS installation check
+
+        cmp al, 80h
+        je detected
+        xor ax, ax
+        xor dx, dx
+        ret
+
+detected:
+        push es
+        push bx
+        mov ax, 4310h           ; XMS get driver address
+        int 2fh
+        
+        mov ax, bx
+        mov dx, es
+        pop bx
+        pop es
+        ret        
+
+global _keycheck        
+_keycheck:      
+        mov ah, 1
+        int 16h
+        ret                
+
+;; COUNT init_DosOpen(BYTE *fname, COUNT mode)
+    global _init_DosOpen
+_init_DosOpen: 
+        ;; first implementation of init calling DOS through ints:
+        mov bx, sp
+        mov ah, 3dh
+        ;; we know that SS=DS during init stage.
+        mov al, [bx+4]
+        mov dx, [bx+2]
+        int 21h
+common_exit:        
+        jnc open_no_error
+        ;; AX has file handle
+        neg ax
+        ;; negative value for error code
+open_no_error:
+        ret
+
+;; COUNT init_DosClose(COUNT hndl)
+    global _init_DosClose
+_init_DosClose:
+        mov bx, sp
+        mov bx, [bx+2]
+        mov ah, 3eh
+        int 21h
+        jmp common_exit
+
+;; COUNT init_DosRead(COUNT hndl, BYTE *bp, UCOUNT n)
+    global _init_DosRead
+_init_DosRead:
+        mov bx, sp
+        mov cx, [bx+6]
+        mov dx, [bx+4]
+        mov bx, [bx+2]
+        mov ah, 3fh
+        int 21h
+        jmp common_exit
+
+;; VOID init_PSPInit(seg psp_seg)
+    global _init_PSPInit
+_init_PSPInit:        
+        push si
+        mov ah, 55h
+        mov bx, sp
+        mov dx, [bx+4]
+        xor si, si
+        int 21h
+        pop si
+        ret
                         

kernel/ioctl.c

@@ -35,6 +35,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.8  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.7  2001/03/30 22:27:42  bartoldeman
  * Saner lastdrive handling.
  *
@@ -117,7 +120,7 @@ sft FAR *get_sft();
  * WARNING:  this code is non-portable (8086 specific).
  */
 
-COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
+COUNT DosDevIOctl(iregs FAR * r)
 {
   sft FAR *s;
   struct dpb FAR *dpbp;
@@ -139,10 +142,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
 
       /* Get the SFT block that contains the SFT              */
       if ((s = get_sft(r->BX)) == (sft FAR *) - 1)
-      {
+        return DE_INVLDHNDL;
-        *err = DE_INVLDHNDL;
-        return 0;
-      }
       break;
 
     case 0x04:
@@ -168,10 +168,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
       dev = ( r->BL == 0 ? default_drive : r->BL - 1);
 
       if (dev >= lastdrive)
-      {
+        return DE_INVLDDRV;
-        *err = DE_INVLDDRV;
-        return 0;
-      }
       else
       {
         cdsp = &CDSp->cds_table[dev];
@@ -188,8 +185,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
       break;
 
     default:
-      *err = DE_INVLDFUNC;
+      return DE_INVLDFUNC;
-      return 0;
   }
 
   switch (r->AL)
@@ -206,10 +202,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
       /* sft_flags is a file, return an error because you     */
       /* can't set the status of a file.                      */
       if (!(s->sft_flags & SFT_FDEVICE))
-      {
+        return DE_INVLDFUNC;
-        *err = DE_INVLDFUNC;
-        return 0;
-      }
 
       /* Set it to what we got in the DL register from the    */
       /* user.                                                */
@@ -243,10 +236,8 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
           execrh((request FAR *) & CharReqHdr, s->sft_dev);
 
           if (CharReqHdr.r_status & S_ERROR)
-          {
+            return DE_DEVICE;
-            *err = DE_DEVICE;
+
-            return 0;
-          }
           if (r->AL == 0x07)
           {
             r->AL = CharReqHdr.r_status & S_BUSY ? 00 : 0xff;
@@ -263,8 +254,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
           }
           break;
       }
-      *err = DE_INVLDFUNC;
+      return DE_INVLDFUNC;
-      return 0;
 
     case 0x0d:
       nMode = C_GENIOCTL;
@@ -280,16 +270,14 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
     IoBlockCommon:
       if(!dpbp)
       {
-        *err = DE_INVLDDRV;
+        return DE_INVLDDRV;
-        return 0;
       }
       if ( ((r->AL == 0x04 ) && !(dpbp->dpb_device->dh_attr & ATTR_IOCTL))
             || ((r->AL == 0x05 ) && !(dpbp->dpb_device->dh_attr & ATTR_IOCTL))
             || ((r->AL == 0x11) && !(dpbp->dpb_device->dh_attr & ATTR_QRYIOCTL))
             || ((r->AL == 0x0d) && !(dpbp->dpb_device->dh_attr & ATTR_GENIOCTL)))
       {
-        *err = DE_INVLDFUNC;
+        return DE_INVLDFUNC;
-        return 0;
       }
 
 
@@ -304,8 +292,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
 
         if (CharReqHdr.r_status & S_ERROR)
         {
-            *err = DE_DEVICE;
+            return DE_DEVICE;
-            return 0;
         }
         if (r->AL == 0x08)
         {
@@ -345,16 +332,14 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
     case 0x08:
       if(!dpbp)
       {
-        *err = DE_INVLDDRV;
+        return DE_INVLDDRV;
-        return 0;
       }
       if (dpbp->dpb_device->dh_attr & ATTR_EXCALLS)
       {
         nMode = C_REMMEDIA;
         goto IoBlockCommon;
       }
-      *err = DE_INVLDFUNC;
+      return DE_INVLDFUNC;
-      return 0;
 
     case 0x09:
       if(cdsp->cdsFlags & CDSNETWDRV)
@@ -366,8 +351,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
         {
             if(!dpbp)
             {
-                *err = DE_INVLDDRV;
+                return DE_INVLDDRV;
-                return 0;
             }
 /* Need to add subst bit 15  */
             r->DX = dpbp->dpb_device->dh_attr;
@@ -388,8 +372,7 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
     IoLogCommon:
       if(!dpbp)
       {
-        *err = DE_INVLDDRV;
+        return DE_INVLDDRV;
-        return 0;
       }
       if ((dpbp->dpb_device->dh_attr & ATTR_GENIOCTL))
       {
@@ -405,22 +388,18 @@ COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err)
                dpbp->dpb_device);
 
         if (CharReqHdr.r_status & S_ERROR)
-          *err = DE_ACCESS;
+          return DE_ACCESS;
         else
         {
             r->AL = CharReqHdr.r_unit;
-            *err = SUCCESS;
+            return SUCCESS;
         }
-        return 0;
       }
-      *err = DE_INVLDFUNC;
+      return DE_INVLDFUNC;
-      return 0;
 
     default:
-      *err = DE_INVLDFUNC;
+      return DE_INVLDFUNC;
-      return 0;
   }
-  *err = SUCCESS;
+  return SUCCESS;
-  return 0;
 }
 

kernel/kernel.asm

@@ -28,6 +28,9 @@
 ; $Id$
 ;
 ; $Log$
+; Revision 1.9  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.8  2001/03/30 19:30:06  bartoldeman
 ; Misc fixes and implementation of SHELLHIGH. See history.txt for details.
 ;
@@ -131,6 +134,8 @@ STACK_SIZE      equ     384/2           ; stack allocated in words
 
 ..start:
 entry:		jmp	far kernel_start
+beyond_entry:   resb    256-(beyond_entry-entry)
+                                        ; scratch area for data (DOS_PSP)
 
 segment	INIT_TEXT
 
@@ -143,7 +148,7 @@ kernel_start:
 		mov	ax,DGROUP
 		cli
 		mov	ss,ax
-		mov	sp,tos
+		mov	sp,init_tos
 		int	12h		; move the init code to higher memory
 		mov	cl,6
 		shl	ax,cl
@@ -321,10 +326,13 @@ _uppermem_root  dw      0	        ; 0066 dmd_upper_root
 _umb_start      dw      0               ; 0068 para of last mem search
 SysVarEnd:
 
+; We've got (01fb-006a) some room here: don't use all zeros!
+         
+
         
 ; Some references seem to indicate that this data should start at 01fbh in
 ; order to maintain 100% MS-DOS compatibility.
-                times (01fbh - (SysVarEnd - DATASTART)) db 0
+                times (01fbh - ($ - DATASTART)) db 0
 
                 global  MARK01FBH
 MARK01FBH       equ     $
@@ -600,23 +608,34 @@ __bssend:
 segment	_BSSEND
 ; blockdev private stack
                 global  blk_stk_top
-                times 256 dw 0
+                times 192 dw 0
 blk_stk_top:
 
 ; clockdev private stack
                 global  clk_stk_top
-                times 256 dw 0
+                times 64 dw 0
 clk_stk_top:
 
+; this is nowhere needed
 ; interrupt stack
-                global  intr_stk_top
+;                global  intr_stk_top
-                times 256 dw 0
+;                times 256 dw 0
-intr_stk_top:
+;intr_stk_top:
 
+segment ID                  ; init data
+                retaddr dd 0    ; return address to jump to from HMA_TEXT
 ; kernel startup stack
-                global  tos
+                global  init_tos
-                times 128 dw 0
+                times 256 dw 0
-tos:
+init_tos:
+
+segment ID_B
+    global __INIT_DATA_START
+__INIT_DATA_START:
+segment ID_E
+    global __INIT_DATA_END
+__INIT_DATA_END:
+
 
 segment	INIT_TEXT_START
                 global  __InitTextStart
@@ -640,6 +659,8 @@ segment	HMA_TEXT
                 times 16 db 0   ; filler [ffff:0..ffff:10]
                 times 22 db 0   ; filler [sizeof VDISK info]
 
+init_ret:       jmp far [retaddr] ; return from init_calls.
+                
 ;End of HMA segment                
 segment	HMA_TEXT_END
                 global  __HMATextEnd
@@ -674,128 +695,125 @@ _DGROUP_:
          dw DGROUP    
 
 
+segment INIT_TEXT
+
+                call far initforceEnableA20  ; first enable A20 or not
+manip_stack_A20:       
+                pop word [retaddr+2]   ; get last ret address
+                pop word [retaddr]     ; get near ret address of init caller
+                mov ax, init_ret       ; new init caller ret address 
+                push ax
+                push word [retaddr+2]  ; and back to the relocation entry 
+                mov [retaddr+2], cs    ; retaddr is now a far pointer to where we came from 
+                ret
+
+    global __HMAinitRelocationTableStart
+__HMAinitRelocationTableStart:    
+
+
+    extern _DosExec
+    global _reloc_call_DosExec
+_reloc_call_DosExec:
+                call manip_stack_A20
+                jmp far _DosExec
+    
+    extern _DosMemAlloc
+    global _reloc_call_DosMemAlloc
+_reloc_call_DosMemAlloc: 
+                call manip_stack_A20
+                jmp far _DosMemAlloc
+    
+    extern _execrh
+    global _reloc_call_execrh
+_reloc_call_execrh: 
+                call manip_stack_A20
+                jmp far _execrh
+    
+    extern _fatal
+    global _reloc_call_fatal
+_reloc_call_fatal:
+                call manip_stack_A20
+                jmp far _fatal
+
+    extern _fmemcpy
+    global _reloc_call_fmemcpy
+_reloc_call_fmemcpy:
+                call manip_stack_A20
+                jmp far _fmemcpy    
+    
+    extern _memcpy
+    global _reloc_call_memcpy
+_reloc_call_memcpy:
+                call manip_stack_A20
+                jmp far _memcpy
+    
+    extern _printf
+    global _reloc_call_printf
+_reloc_call_printf: 
+                call manip_stack_A20
+                jmp far _printf
+    
+    extern _strcpy
+    global _reloc_call_strcpy
+_reloc_call_strcpy:
+                call manip_stack_A20
+                jmp far _strcpy
+    
+    extern _sti
+    global _reloc_call_sti
+_reloc_call_sti:
+                call manip_stack_A20
+                jmp far _sti
+    
+    extern _strcmp
+    global _reloc_call_strcmp
+_reloc_call_strcmp:
+                call manip_stack_A20
+                jmp far _strcmp
+    
+    extern _strlen
+    global _reloc_call_strlen
+_reloc_call_strlen:
+                call manip_stack_A20
+                jmp far _strlen
+
+    extern _WritePCClock
+    global _reloc_call_WritePCClock
+_reloc_call_WritePCClock: 
+                call manip_stack_A20
+                jmp far _WritePCClock
+
+    extern _DaysFromYearMonthDay
+    global _reloc_call_DaysFromYearMonthDay
+_reloc_call_DaysFromYearMonthDay:
+                call manip_stack_A20
+                jmp far _DaysFromYearMonthDay
+
+    extern  _fmemset
+    global  _reloc_call_fmemset
+_reloc_call_fmemset:
+                call manip_stack_A20
+                jmp far _fmemset
+
+    extern  _p_0
+    global  _reloc_call_p_0
+_reloc_call_p_0: 
+                call manip_stack_A20
+                jmp far _p_0
+
+    global __HMAinitRelocationTableEnd
+__HMAinitRelocationTableEnd:
+
 segment _TEXT
 
+global _initforceEnableA20
+initforceEnableA20:
+		call near forceEnableA20
+		retf   
+
     global __HMARelocationTableStart
 __HMARelocationTableStart:   
 
-
-    extern _init_call_DosExec
-    global _reloc_call_DosExec
-_reloc_call_DosExec: jmp far _init_call_DosExec
-                call near forceEnableA20
-    
-    extern _init_call_DosMemAlloc
-    global _reloc_call_DosMemAlloc
-_reloc_call_DosMemAlloc: jmp far _init_call_DosMemAlloc
-                call near forceEnableA20
-    
-    extern _init_call_dos_close
-    global _reloc_call_dos_close
-_reloc_call_dos_close: jmp far _init_call_dos_close
-                call near forceEnableA20
-    
-    extern _init_call_dos_getdate
-    global _reloc_call_dos_getdate
-_reloc_call_dos_getdate: jmp far _init_call_dos_getdate
-                call near forceEnableA20
-    
-    extern _init_call_dos_gettime
-    global _reloc_call_dos_gettime
-_reloc_call_dos_gettime: jmp far _init_call_dos_gettime
-                call near forceEnableA20
-    
-    extern _init_call_dos_open
-    global _reloc_call_dos_open
-_reloc_call_dos_open: jmp far _init_call_dos_open
-                call near forceEnableA20
-    
-    extern _init_call_dos_read
-    global _reloc_call_dos_read
-_reloc_call_dos_read: jmp far _init_call_dos_read
-                call near forceEnableA20
-    
-    extern _init_call_execrh
-    global _reloc_call_execrh
-_reloc_call_execrh: jmp far _init_call_execrh
-                call near forceEnableA20
-    
-    extern _init_call_fatal
-    global _reloc_call_fatal
-_reloc_call_fatal: jmp far _init_call_fatal
-                call near forceEnableA20
-
-    extern _init_call_fmemcpy
-    global _reloc_call_fmemcpy
-_reloc_call_fmemcpy: jmp far _init_call_fmemcpy    
-                call near forceEnableA20
-
-    
-    extern _init_call_memcpy
-    global _reloc_call_memcpy
-_reloc_call_memcpy: jmp far _init_call_memcpy
-                call near forceEnableA20
-    
-    extern _init_call_printf
-    global _reloc_call_printf
-_reloc_call_printf: jmp far _init_call_printf
-                call near forceEnableA20
-    
-    extern _init_call_strcpy
-    global _reloc_call_strcpy
-_reloc_call_strcpy: jmp far _init_call_strcpy
-                call near forceEnableA20
-    
-    extern _init_call_sti
-    global _reloc_call_sti
-_reloc_call_sti: jmp far _init_call_sti
-                call near forceEnableA20
-    
-    extern _init_call_strcmp
-    global _reloc_call_strcmp
-_reloc_call_strcmp: jmp far _init_call_strcmp
-                call near forceEnableA20
-    
-    extern _init_call_strlen
-    global _reloc_call_strlen
-_reloc_call_strlen: jmp far _init_call_strlen
-                call near forceEnableA20
-    
-
-    extern _init_call_WritePCClock
-    global _reloc_call_WritePCClock
-_reloc_call_WritePCClock: jmp far _init_call_WritePCClock
-                call near forceEnableA20
-
-    extern _init_call_DaysFromYearMonthDay
-    global _reloc_call_DaysFromYearMonthDay
-_reloc_call_DaysFromYearMonthDay: jmp far _init_call_DaysFromYearMonthDay
-                call near forceEnableA20
-
-                global  _CharMapSrvc
-                extern  _reloc_call_CharMapSrvc
-_CharMapSrvc: jmp far _reloc_call_CharMapSrvc
-                call near forceEnableA20
-
-                global  _reloc_call_clk_driver
-                extern  _init_call_clk_driver
-_reloc_call_clk_driver: jmp far _init_call_clk_driver
-                call near forceEnableA20
-
-
-
-                global  _reloc_call_fmemset
-                extern  _init_call_fmemset
-_reloc_call_fmemset: jmp far _init_call_fmemset
-                call near forceEnableA20
-
-
-                global  _reloc_call_blk_driver
-                extern  _init_call_blk_driver
-_reloc_call_blk_driver: jmp far _init_call_blk_driver
-                call near forceEnableA20
-
-
                 global  _int2f_handler
                 extern  reloc_call_int2f_handler
 _int2f_handler: jmp far reloc_call_int2f_handler
@@ -806,9 +824,6 @@ _int2f_handler: jmp far reloc_call_int2f_handler
 _int20_handler: jmp far reloc_call_int20_handler
                 call near forceEnableA20
 
-
-
-
                 global  _int21_handler
                 extern  reloc_call_int21_handler
 _int21_handler: jmp far reloc_call_int21_handler
@@ -840,14 +855,21 @@ _int0_handler:  jmp far reloc_call_int0_handler
 _cpm_entry:     jmp far reloc_call_cpm_entry
                 call near forceEnableA20
 
-;                global  _init_call_init_buffers
+                global  _reloc_call_blk_driver
-;                extern  _reloc_call_init_buffers
+                extern  _blk_driver
-;_init_call_init_buffers: jmp far _reloc_call_init_buffers
+_reloc_call_blk_driver:
-;                call near forceEnableA20
+                jmp far _blk_driver
+                call near forceEnableA20
 
-                global  _init_call_p_0
+                global  _reloc_call_clk_driver
-                extern  _reloc_call_p_0
+                extern  _clk_driver
-_init_call_p_0: jmp far _reloc_call_p_0
+_reloc_call_clk_driver:
+                jmp far _clk_driver
+                call near forceEnableA20
+
+                global  _CharMapSrvc
+                extern  _reloc_call_CharMapSrvc
+_CharMapSrvc: jmp far _reloc_call_CharMapSrvc
                 call near forceEnableA20
 
 		
@@ -1006,16 +1028,6 @@ _int24_handler: mov     al,FAIL
                 iret
 
 
-segment HMA_TEXT    
-		extern	_init_call_printf:wrt TGROUP
-		global	_printf
-
-_printf:
-		pop	ax
-		push	cs
-		push	ax
-		jmp	_init_call_printf
-
 
 
 

kernel/kernel.mak

@@ -5,6 +5,9 @@
 #
 
 # $Log$
+# Revision 1.8  2001/04/15 03:21:50  bartoldeman
+# See history.txt for the list of fixes.
+#
 # Revision 1.7  2001/03/25 17:11:54  bartoldeman
 # Fixed sys.com compilation. Updated to 2023. Also: see history.txt.
 #
@@ -131,10 +134,9 @@ LIBS        =..\LIB\DEVICE.LIB ..\LIB\LIBM.LIB
 #ALLCFLAGS = -1- -O -Z -d -I..\hdr -I. \
 #    -D__STDC__=0;DEBUG;KERNEL;I86;PROTO;ASMSUPT
 ALLCFLAGS = -1- -O -Z -d -I..\hdr -I. \
-     -D__STDC__=0;KERNEL;I86;PROTO;ASMSUPT \
+     -D__STDC__=0;I86;ASMSUPT -w -g1
-     -g1 
+INITCFLAGS =$(ALLCFLAGS) -zAINIT -zCINIT_TEXT -zPIGROUP -zDIB -zRID -zTID
-INITCFLAGS = $(ALLCFLAGS) -zAINIT -zCINIT_TEXT -zPIGROUP
+CFLAGS     =$(ALLCFLAGS) -zAHMA  -zCHMA_TEXT  
-CFLAGS     = $(ALLCFLAGS) -zAHMA  -zCHMA_TEXT  
 HDR=../hdr/
 
 #               *Implicit Rules*

kernel/main.c

@@ -29,7 +29,6 @@
 
 #include "init-mod.h"
 
-#define MAIN
 #include "portab.h"
 #include "globals.h"
 
@@ -39,6 +38,9 @@ static BYTE *mainRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.13  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.12  2001/03/30 22:27:42  bartoldeman
  * Saner lastdrive handling.
  *
@@ -169,14 +171,14 @@ extern BYTE FAR * lpBase;
 extern BYTE FAR * upBase;
 
 INIT BOOL ReadATClock(BYTE *, BYTE *, BYTE *, BYTE *);
-VOID FAR init_call_WritePCClock(ULONG);
+VOID WritePCClock(ULONG);
-VOID FAR reloc_call_WritePCClock(ULONG);
 
 INIT VOID configDone(VOID);
 INIT static void InitIO(void);
 INIT static COUNT BcdToByte(COUNT);
-INIT static COUNT BcdToDay(BYTE *);
+/** INIT static COUNT BcdToDay(BYTE *);*/
 
+INIT static VOID update_dcb(struct dhdr FAR *);
 INIT static VOID init_kernel(VOID);
 INIT static VOID signon(VOID);
 INIT VOID kernel(VOID);
@@ -226,26 +228,28 @@ INIT VOID main(void)
     at least one known utility (norton DE) seems to access them directly.
     ok, so we access for all drives, that the stuff gets build
 */
-
+/*
-void InitializeAllBPBs()
+  should not be necessary anymore (see DosSelectDrv in dosfns.c)
+void InitializeAllBPBs(VOID)
 {
   static char filename[] = "A:-@JUNK@-.TMP";
   int drive,fileno;
   for (drive = 'Z'; drive >= 'C'; drive--)
     {
       filename[0] = drive;
-      if ((fileno = dos_open((BYTE FAR *) filename, O_RDONLY)) >= 0)
+      if ((fileno = init_DosOpen(filename, O_RDONLY)) >= 0)
-        dos_close(fileno);
+        init_DosClose(fileno);
     }
 }    
-
+*/
 
 INIT void init_kernel(void)
 {
   COUNT i;
+  
   os_major = MAJOR_RELEASE;
   os_minor = MINOR_RELEASE;
-  cu_psp = DOS_PSP;
+
   nblkdev = 0;
   maxbksize = 0x200;
   switchar = '/';
@@ -294,10 +298,13 @@ INIT void init_kernel(void)
   scr_pos = 0;
   break_ena = TRUE;
 
+  init_PSPInit(DOS_PSP);
+
   /* Do first initialization of system variable buffers so that   */
   /* we can read config.sys later.  */
   lastdrive = Config.cfgLastdrive;
   PreConfig();
+  init_device((struct dhdr FAR *)&blk_dev, NULL, NULL, ram_top);
 
   /* Now config the temporary file system */
   FsConfig();
@@ -305,11 +312,12 @@ INIT void init_kernel(void)
 #ifndef KDB
   /* Now process CONFIG.SYS     */
   DoConfig();
-
   /* and do final buffer allocation. */
   PostConfig();
+  nblkdev = 0;
+  update_dcb(&blk_dev);
 
-  /* Init the file system on emore time     */
+  /* Init the file system one more time     */
   FsConfig();
 
   /* and process CONFIG.SYS one last time to load device drivers. */
@@ -326,20 +334,12 @@ INIT void init_kernel(void)
   InDOS = 0;
   pDirFileNode = 0;
   dosidle_flag = 0;
-  
-  InitializeAllBPBs();
-  
 }
 
 INIT VOID FsConfig(VOID)
 {
   REG COUNT i;
-  date Date;
+  struct dpb FAR *dpb;
-  time Time;
-
-  /* Get the start-up date and time                               */
-  Date = dos_getdate();
-  Time = dos_gettime();
 
   /* Initialize the file tables */
   for (i = 0; i < Config.cfgFiles; i++)
@@ -351,84 +351,36 @@ INIT VOID FsConfig(VOID)
   sfthead->sftt_count = Config.cfgFiles;
   for (i = 0; i < sfthead->sftt_count; i++)
   {
+    init_DosClose(i);
     sfthead->sftt_table[i].sft_count = 0;
     sfthead->sftt_table[i].sft_status = -1;
   }
   /* 0 is /dev/con (stdin) */
-  sfthead->sftt_table[0].sft_count = 1;
+  init_DosOpen("CON", SFT_MREAD);
-  sfthead->sftt_table[0].sft_mode = SFT_MREAD;
+  sfthead->sftt_table[0].sft_flags |= SFT_FCONIN | SFT_FCONOUT;
-  sfthead->sftt_table[0].sft_attrib = 0;
-  sfthead->sftt_table[0].sft_flags =
-      ((con_dev.dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE | SFT_FEOF | SFT_FCONIN | SFT_FCONOUT;
-  sfthead->sftt_table[0].sft_psp = DOS_PSP;
-  sfthead->sftt_table[0].sft_date = Date;
-  sfthead->sftt_table[0].sft_time = Time;
-  fbcopy(
-          (VOID FAR *) "CON        ",
-          (VOID FAR *) sfthead->sftt_table[0].sft_name, 11);
-  sfthead->sftt_table[0].sft_dev = (struct dhdr FAR *)&con_dev;
 
   /* 1 is /dev/con (stdout)     */
-  sfthead->sftt_table[1].sft_count = 1;
+  init_DosOpen("CON", SFT_MWRITE);
-  sfthead->sftt_table[1].sft_mode = SFT_MWRITE;
+  sfthead->sftt_table[1].sft_flags |= SFT_FCONIN | SFT_FCONOUT;
-  sfthead->sftt_table[1].sft_attrib = 0;
-  sfthead->sftt_table[1].sft_flags =
-      ((con_dev.dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE | SFT_FEOF | SFT_FCONIN | SFT_FCONOUT;
-  sfthead->sftt_table[1].sft_psp = DOS_PSP;
-  sfthead->sftt_table[1].sft_date = Date;
-  sfthead->sftt_table[1].sft_time = Time;
-  fbcopy(
-          (VOID FAR *) "CON        ",
-          (VOID FAR *) sfthead->sftt_table[1].sft_name, 11);
-  sfthead->sftt_table[1].sft_dev = (struct dhdr FAR *)&con_dev;
 
   /* 2 is /dev/con (stderr)     */
-  sfthead->sftt_table[2].sft_count = 1;
+  init_DosOpen("CON", SFT_MWRITE);
-  sfthead->sftt_table[2].sft_mode = SFT_MWRITE;
+  sfthead->sftt_table[2].sft_flags |= SFT_FCONIN | SFT_FCONOUT;
-  sfthead->sftt_table[2].sft_attrib = 0;
-  sfthead->sftt_table[2].sft_flags =
-      ((con_dev.dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE | SFT_FEOF | SFT_FCONIN | SFT_FCONOUT;
-  sfthead->sftt_table[2].sft_psp = DOS_PSP;
-  sfthead->sftt_table[2].sft_date = Date;
-  sfthead->sftt_table[2].sft_time = Time;
-  fbcopy(
-          (VOID FAR *) "CON        ",
-          (VOID FAR *) sfthead->sftt_table[2].sft_name, 11);
-  sfthead->sftt_table[2].sft_dev = (struct dhdr FAR *)&con_dev;
 
   /* 3 is /dev/aux                                                */
-  sfthead->sftt_table[3].sft_count = 1;
+  init_DosOpen("AUX", SFT_MRDWR);
-  sfthead->sftt_table[3].sft_mode = SFT_MRDWR;
+  sfthead->sftt_table[3].sft_flags &= ~SFT_FEOF;
-  sfthead->sftt_table[3].sft_attrib = 0;
-  sfthead->sftt_table[3].sft_flags =
-      ((aux_dev.dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE;
-  sfthead->sftt_table[3].sft_psp = DOS_PSP;
-  sfthead->sftt_table[3].sft_date = Date;
-  sfthead->sftt_table[3].sft_time = Time;
-  fbcopy(
-          (VOID FAR *) "AUX        ",
-          (VOID FAR *) sfthead->sftt_table[3].sft_name, 11);
-  sfthead->sftt_table[3].sft_dev = (struct dhdr FAR *)&aux_dev;
 
   /* 4 is /dev/prn                                                */
-  sfthead->sftt_table[4].sft_count = 1;
+  init_DosOpen("PRN", SFT_MWRITE);
-  sfthead->sftt_table[4].sft_mode = SFT_MWRITE;
+  sfthead->sftt_table[4].sft_flags &= ~SFT_FEOF;
-  sfthead->sftt_table[4].sft_attrib = 0;
-  sfthead->sftt_table[4].sft_flags =
-      ((prn_dev.dh_attr & ~SFT_MASK) & ~SFT_FSHARED) | SFT_FDEVICE;
-  sfthead->sftt_table[4].sft_psp = DOS_PSP;
-  sfthead->sftt_table[4].sft_date = Date;
-  sfthead->sftt_table[4].sft_time = Time;
-  fbcopy(
-          (VOID FAR *) "PRN        ",
-          (VOID FAR *) sfthead->sftt_table[4].sft_name, 11);
-  sfthead->sftt_table[4].sft_dev = (struct dhdr FAR *)&prn_dev;
 
   /* Log-in the default drive.  */
   /* Get the boot drive from the ipl and use it for default.  */
   default_drive = BootDrive - 1;
+  dpb = DPBp;
 
-  /* Initialzie the current directory structures    */
+  /* Initialize the current directory structures    */
   for (i = 0; i < lastdrive  ; i++)
   {
   	struct cds FAR *pcds_table = &CDSp->cds_table[i];
@@ -438,10 +390,11 @@ INIT VOID FsConfig(VOID)
 
     pcds_table->cdsCurrentPath[0] += i;
 
-    if (i < nblkdev)
+    if (i < nblkdev && (ULONG)dpb != 0xffffffffl)
     {
-      pcds_table->cdsDpb = &blk_devices[i];
+      pcds_table->cdsDpb = dpb;
       pcds_table->cdsFlags = CDSPHYSDRV;
+      dpb = dpb->dpb_next;
     }
     else
     {
@@ -453,7 +406,7 @@ INIT VOID FsConfig(VOID)
     pcds_table->cdsJoinOffset = 2;
   }
 
-  /* Initialze the disk buffer management functions */
+  /* Initialize the disk buffer management functions */
   /* init_call_init_buffers(); done from CONFIG.C   */
 }
 
@@ -495,21 +448,55 @@ INIT void kernel()
   ep += sizeof(int);
 #endif
   RootPsp = ~0;
-  
+  p_0();
-  init_call_p_0();
 }
 
+/* check for a block device and update  device control block    */
+static VOID update_dcb(struct dhdr FAR * dhp)
+{
+  REG COUNT Index;
+  COUNT nunits = dhp->dh_name[0];
+  struct dpb FAR *dpb;
+
+  if (nblkdev==0)
+    dpb = DPBp;
+  else {
+    for (dpb = DPBp; (ULONG)dpb->dpb_next != 0xffffffffl; dpb = dpb->dpb_next)
+      ;
+    dpb = dpb->dpb_next = (struct dpb FAR *)KernelAlloc(nunits*sizeof(struct dpb));
+  }
+
+  for(Index = 0; Index < nunits; Index++)
+  {      
+    dpb->dpb_next = dpb+1;
+    dpb->dpb_unit = nblkdev;
+    dpb->dpb_subunit = Index;
+    dpb->dpb_device = dhp;
+    dpb->dpb_flags = M_CHANGED;
+    if ((CDSp != 0) && (nblkdev < lastdrive))
+    {
+      CDSp->cds_table[nblkdev].cdsDpb = dpb;
+      CDSp->cds_table[nblkdev].cdsFlags = CDSPHYSDRV;
+    }
+    ++dpb;
+    ++nblkdev;
+  }
+  (dpb-1)->dpb_next = (void FAR *)0xFFFFFFFFl;
+}
+
+
 /* If cmdLine is NULL, this is an internal driver */
 
 BOOL init_device(struct dhdr FAR * dhp, BYTE FAR * cmdLine, COUNT mode, COUNT r_top)
 {
   request rq;
 
-  ULONG memtop = ((ULONG) r_top) << 10;
+  UCOUNT maxmem = ((UCOUNT)r_top << 6) - FP_SEG(dhp);
-  ULONG maxmem = memtop - ((ULONG) FP_SEG(dhp) << 4);
 
-  if (maxmem >= 0x10000)
+  if (maxmem >= 0x1000)
     maxmem = 0xFFFF;
+  else
+    maxmem <<= 4;
 
   rq.r_unit = 0;
   rq.r_status = 0;
@@ -519,7 +506,6 @@ BOOL init_device(struct dhdr FAR * dhp, BYTE FAR * cmdLine, COUNT mode, COUNT r_
   rq.r_bpbptr = (void FAR *)(cmdLine ? cmdLine : "\n");
   rq.r_firstunit = nblkdev;
 
-
   execrh((request FAR *) & rq, dhp);
   
 /*
@@ -535,32 +521,11 @@ BOOL init_device(struct dhdr FAR * dhp, BYTE FAR * cmdLine, COUNT mode, COUNT r_
         lpBase = rq.r_endaddr;
     }
 
-/* check for a block device and update  device control block    */
+  if (!(dhp->dh_attr & ATTR_CHAR) && (rq.r_nunits != 0)) {
-  if (!(dhp->dh_attr & ATTR_CHAR) && (rq.r_nunits != 0))
+    dhp->dh_name[0] = rq.r_nunits;
-  {
+    update_dcb(dhp);
-    REG COUNT Index;
-
-    for (Index = 0; Index < rq.r_nunits; Index++)
-    {
-	  struct dpb *pblk_devices = &blk_devices[nblkdev];
-    	
-      if (nblkdev)
-        (pblk_devices-1)->dpb_next = pblk_devices;
-
-      pblk_devices->dpb_next = (void FAR *)0xFFFFFFFF;
-      pblk_devices->dpb_unit = nblkdev;
-      pblk_devices->dpb_subunit = Index;
-      pblk_devices->dpb_device = dhp;
-      pblk_devices->dpb_flags = M_CHANGED;
-      if ((CDSp != 0) && (nblkdev < lastdrive))
-      {
-        CDSp->cds_table[nblkdev].cdsDpb = pblk_devices;
-        CDSp->cds_table[nblkdev].cdsFlags = CDSPHYSDRV;
   }
-      ++nblkdev;
+
-    }
-  }
-  DPBp = &blk_devices[0];
   return FALSE;
 }
 
@@ -579,7 +544,6 @@ INIT static void InitIO(void)
   setvec(0x29, int29_handler);  /* Requires Fast Con Driver     */
   init_device((struct dhdr FAR *)&con_dev, NULL, NULL, ram_top);
   init_device((struct dhdr FAR *)&clk_dev, NULL, NULL, ram_top);
-  init_device((struct dhdr FAR *)&blk_dev, NULL, NULL, ram_top);
   /* If AT clock exists, copy AT clock time to system clock */
   if (!ReadATClock(bcd_days, &bcd_hours, &bcd_minutes, &bcd_seconds))
   {

kernel/memmgr.c

@@ -35,6 +35,9 @@ static BYTE *memmgrRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.12  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.11  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -166,9 +169,12 @@ seg far2para(VOID FAR * p)
   return FP_SEG(p) + (FP_OFF(p) >> 4);
 }
 
-seg long2para(LONG size)
+seg long2para(ULONG size)
 {
-  return ((size + 0x0f) >> 4);
+  UWORD high = size>>16;
+  if ((UWORD)size > 0xfff0)
+      high++;
+  return (((UWORD)size + 0x0f) >> 4) + (high << 12);
 }
 
 /*
@@ -176,11 +182,14 @@ seg long2para(LONG size)
  */
 VOID FAR *add_far(VOID FAR * fp, ULONG off)
 {
-  if (FP_SEG(fp) == 0xffff) return ((BYTE FAR *)fp) + off;
+  UWORD off2;
+    
+  if (FP_SEG(fp) == 0xffff) return ((BYTE FAR *)fp) + FP_OFF(off);
     
   off += FP_OFF(fp);
+  off2 = ((off >> 16) << 12) + ((UWORD)off >> 4);
 
-  return MK_FP(FP_SEG(fp) + (UWORD) (off >> 4), (UWORD) off & 0xf);
+  return MK_FP(FP_SEG(fp) + off2, (UWORD) off & 0xf);
 }
 
 /*
@@ -199,7 +208,7 @@ VOID FAR *adjust_far(VOID FAR * fp)
 #undef REG
 #define REG
 
-#ifdef KERNEL
+#if 1    /* #ifdef KERNEL  KERNEL */
 /* Allocate a new memory area. *para is assigned to the segment of the
    MCB rather then the segment of the data portion */
 /* If mode == LARGEST, asize MUST be != NULL and will always recieve the
@@ -347,11 +356,6 @@ stopIt:                        /* reached from FIRST_FIT on match */
   return SUCCESS;
 }
 
-COUNT FAR init_call_DosMemAlloc(UWORD size, COUNT mode, seg FAR * para, UWORD FAR * asize)
-{
-  return DosMemAlloc(size, mode, para, asize);
-}
-
 /*
  * Unlike the name and the original prototype could suggest, this function
  * is used to return the _size_ of the largest available block rather than
@@ -363,7 +367,6 @@ COUNT FAR init_call_DosMemAlloc(UWORD size, COUNT mode, seg FAR * para, UWORD FA
 COUNT DosMemLargest(UWORD FAR * size)
 {
   REG mcb FAR *p;
-  COUNT found;
 
   /* Initialize                                           */
   p = ((mem_access_mode & (FIRST_FIT_UO | FIRST_FIT_U)) && uppermem_link && uppermem_root)
@@ -550,7 +553,7 @@ COUNT DosMemCheck(void)
 
 COUNT FreeProcessMem(UWORD ps)
 {
-  mcb FAR *p, FAR *u;
+  mcb FAR *p;
   COUNT x = 0;
 
   /* Initialize                                           */
@@ -621,14 +624,12 @@ VOID show_chain(void)
       p = nxtMCB(p);
   }
 }
-#endif
 
 VOID mcb_print(mcb FAR * mcbp)
 {
   static BYTE buff[9];
-  VOID _fmemcpy();
 
-  _fmemcpy((BYTE FAR *) buff, (BYTE FAR *) (mcbp->m_name), 8);
+  fmemcpy((BYTE FAR *) buff, (BYTE FAR *) (mcbp->m_name), 8);
   buff[8] = '\0';
   printf("%04x:%04x -> |%s| m_type = 0x%02x '%c'; m_psp = 0x%04x; m_size = 0x%04x\n",
          FP_SEG(mcbp),
@@ -638,14 +639,8 @@ VOID mcb_print(mcb FAR * mcbp)
          mcbp->m_psp,
          mcbp->m_size);
 }
-/*
+#endif
-VOID _fmemcpy(BYTE FAR * d, BYTE FAR * s, REG COUNT n)
-{
-  while (n--)
-    *d++ = *s++;
 
-}
-*/
 VOID DosUmbLink(BYTE n)
 {
     REG mcb FAR *p;
@@ -688,4 +683,58 @@ VOID DosUmbLink(BYTE n)
 DUL_exit:
     return;
 }
+
+/*
+    if we arrive here the first time, it's just
+    before jumping to COMMAND.COM
+
+    so we are done initializing, and can claim the IMIT_DATA segment,
+    as these data/strings/buffers are no longer in use.
+
+    we carve a free memory block out of it and hope that
+    it will be useful (maybe for storing environments)
+
+*/
+
+BYTE INITDataSegmentClaimed = 1; /* must be enabled by CONFIG.SYS */
+extern BYTE _INIT_DATA_START[], _INIT_DATA_END[];
+
+VOID ClaimINITDataSegment()
+{
+    unsigned ilow,ihigh;
+    VOID FAR * p;
+
+    if (INITDataSegmentClaimed)
+        return;
+    INITDataSegmentClaimed = 1;
+
+
+    ilow  = (unsigned)_INIT_DATA_START;
+    ilow  = (ilow+0x0f) & ~0x000f;
+    ihigh = (unsigned)_INIT_DATA_END;
+    ihigh = ((ihigh  + 0x0f) & ~0x000f) - 0x20;
+
+    if (ilow +0x10 < ihigh)
+        {
+        printf("CLAIMING INIT_DATA memory - %u bytes\n",ihigh - ilow);
+        }
+
+
+    ((mcb*)ilow)->m_type = MCB_NORMAL;      /* 'M' */
+    ((mcb*)ilow)->m_psp  = FREE_PSP;        /* '0' */
+    ((mcb*)ilow)->m_size = (ihigh-ilow-0x10)>>4;  /* '0' */
+
+    ((mcb*)ihigh)->m_type = MCB_NORMAL;      /* 'M' */
+    ((mcb*)ihigh)->m_psp  = 0x0008;          /* system */
+
+    p = (void FAR*)(void*)ihigh;
+
+    ((mcb*)ihigh)->m_size = first_mcb -1 - FP_SEG(p) - (FP_OFF(p) >> 4);
+
+    p = (void FAR*)(void*)ilow;
+
+    first_mcb = FP_SEG(p) + (FP_OFF(p) >> 4);
+
+}
+
 #endif

kernel/misc.c

@@ -34,6 +34,9 @@ static BYTE *miscRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2001/03/21 02:56:26  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -98,11 +101,6 @@ VOID scopy(REG BYTE * s, REG BYTE * d)
   *d = '\0';
 }
 
-VOID FAR init_call_scopy(REG BYTE * s, REG BYTE * d)
-{
-  scopy(s, d);
-}
-
 VOID fscopy(REG BYTE FAR * s, REG BYTE FAR * d)
 {
   while (*s)
@@ -117,7 +115,6 @@ VOID fsncopy(BYTE FAR * s, BYTE FAR * d, REG COUNT n)
   *d = '\0';
 }
 
-#ifndef ASMSUPT
 VOID bcopy(REG BYTE * s, REG BYTE * d, REG COUNT n)
 {
   while (n--)
@@ -137,16 +134,3 @@ VOID fmemset(REG VOID FAR * s, REG int ch, REG COUNT n)
 }
 
 #endif
-
-VOID FAR init_call_fbcopy(REG VOID FAR * s, REG VOID FAR * d, REG COUNT n)
-{
-  fbcopy(s, d, n);
-}
-
-VOID fmemset(VOID FAR *, int, COUNT);
-
-VOID FAR init_call_fmemset(REG VOID FAR * s, REG int ch, REG COUNT n)
-{
-  fmemset(s, ch, n);
-}
-#endif

kernel/network.c

@@ -36,6 +36,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.11  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.10  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -86,7 +89,7 @@ static BYTE *RcsId = "$Id$";
  */
 UWORD get_machine_name(BYTE FAR * netname)
 {
-  fmemcpy(netname, &net_name, 15);
+  fmemcpy(netname, &net_name, 16);
   return (NetBios);
 }
 
@@ -124,8 +127,8 @@ UCOUNT Remote_RW(UWORD func, UCOUNT n, BYTE FAR * bp, sft FAR * s, COUNT FAR * e
  */
 COUNT Remote_find(UWORD func, BYTE FAR * name, REG dmatch FAR * dmp )
 {
-  COUNT i, x;
+  COUNT i;
-  char FAR *p, FAR *q;
+  char FAR *p;
   VOID FAR * test;
   struct dirent FAR *SDp = (struct dirent FAR *) &SearchDir;
 

kernel/newstuff.c

@@ -31,6 +31,9 @@ static BYTE *mainRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.11  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.10  2001/04/02 23:18:30  bartoldeman
  * Misc, zero terminated device names and redirector bugs fixed.
  *
@@ -152,10 +155,10 @@ int SetJFTSize(UWORD nHandles)
   return SUCCESS;
 }
 
+/* this is the same, is shorter (~170)and slightly easier to understand TE*/
 int DosMkTmp(BYTE FAR * pathname, UWORD attr)
 {
   /* create filename from current date and time */
-  static const char tokens[] = "0123456789ABCDEF";
   char FAR *ptmp = pathname;
   BYTE wd,
     month,
@@ -167,6 +170,8 @@ int DosMkTmp(BYTE FAR * pathname, UWORD attr)
   WORD sh;
   WORD year;
   int rc;
+  char name83[13];
+  int loop;
 
   while (*ptmp)
     ptmp++;
@@ -179,35 +184,24 @@ int DosMkTmp(BYTE FAR * pathname, UWORD attr)
 
   sh = s * 100 + hund;
 
-  ptmp[0] = tokens[year & 0xf];
+    for ( loop = 0; loop < 0xfff; loop++)
-  ptmp[1] = tokens[month];
-  ptmp[2] = tokens[day & 0xf];
-  ptmp[3] = tokens[h & 0xf];
-  ptmp[4] = tokens[m & 0xf];
-  ptmp[5] = tokens[(sh >> 8) & 0xf];
-  ptmp[6] = tokens[(sh >> 4) & 0xf];
-  ptmp[7] = tokens[sh & 0xf];
-  ptmp[8] = '.';
-  ptmp[9] = 'A';
-  ptmp[10] = 'A';
-  ptmp[11] = 'A';
-  ptmp[12] = 0;
-
-  while ((rc = DosOpen(pathname, 0)) >= 0)
         {
-    DosClose(rc);
+        sprintf(name83,"%x%x%x%x%x%03x.%03x",
 
-    if (++ptmp[11] > 'Z')
+             year & 0xf,month & 0xf, day & 0xf,h & 0xf,m & 0xf, sh&0xfff,
-    {
+             loop & 0xfff);
-      if (++ptmp[10] > 'Z')
-      {
-        if (++ptmp[9] > 'Z')
-          return DE_TOOMANY;
 
-        ptmp[10] = 'A';
+        fmemcpy(ptmp, name83, 13);
-      }
+
-      ptmp[11] = 'A';
+        if ((rc = DosOpen(pathname, 0)) < 0 &&
-    }
+             rc != DE_ACCESS                /* subdirectory ?? */
+                                            /* todo: sharing collision on
+                                               network drive
+                                            */
+            )
+            break;
+
+        if (rc >= 0) DosClose(rc);
         }
 
     if (rc == DE_FILENOTFND)
@@ -219,21 +213,17 @@ int DosMkTmp(BYTE FAR * pathname, UWORD attr)
 
 COUNT get_verify_drive(char FAR *src)
 {
-  COUNT drive;
+  UBYTE drive;
-  /* First, adjust the source pointer                             */
-  src = adjust_far(src);
 
   /* Do we have a drive?                                          */
   if (src[1] == ':')
-  {
+    drive = ((src[0]-1) | 0x20) - ('a'-1);
-    drive = (src[0] | 0x20) - 'a';
-  }
   else
-    drive = default_drive;
+    return default_drive;
-  if ((drive < 0) || (drive >= lastdrive)) {
+  if (drive < lastdrive && CDSp->cds_table[drive].cdsFlags & CDSVALID)
-    drive = DE_INVLDDRV;
-  }
     return drive;
+  else
+    return DE_INVLDDRV;
 }
 
 /*
@@ -271,21 +261,19 @@ COUNT truename(char FAR * src, char FAR * dest, COUNT t)
 
   dest[0] = '\0';
 
+  i = get_verify_drive(src);
+  if (i < 0)
+      return DE_INVLDDRV;
+  
+  buf[0] = i + 'A';
+  buf[1] = ':'; /* Just to be sure */
+
   /* First, adjust the source pointer */
   src = adjust_far(src);
 
   /* Do we have a drive? */
   if (src[1] == ':')
-  {
-    buf[0] = (src[0] | 0x20) + 'A' - 'a';
-
-    if (buf[0] >= lastdrive + 'A')       /* BUG:should be: drive exists */
-      return DE_INVLDDRV;
-
     src += 2;
-  }
-  else
-    buf[0] = default_drive + 'A';
 
 /* /// Added to adjust for filenames which begin with ".\"
        The problem was manifesting itself in the inability
@@ -297,7 +285,6 @@ COUNT truename(char FAR * src, char FAR * dest, COUNT t)
 /* /// Changed to "while" from "if".  - Ron Cemer */
   while ( (src[0] == '.') && (src[1] == '\\') ) src += 2;
 
-  i = buf[0] - 'A';
 /*
     Code repoff from dosfns.c
     MSD returns X:/CON for truename con. Not X:\CON

kernel/nls.c

@@ -44,6 +44,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.6  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.5  2001/03/21 02:56:26  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -256,7 +259,7 @@ static COUNT cpyBuf(VOID FAR *dst, UWORD dstlen
 	, VOID FAR *src, UWORD srclen)
 {
 	if(srclen <= dstlen) {
-		_fmemcpy(dst, src, srclen);
+		fmemcpy(dst, src, srclen);
 		return SUCCESS;
 	}
 	return DE_INVLDFUNC;		/* buffer too small */

kernel/prf.c

@@ -28,12 +28,18 @@
 
 #include "portab.h"
 
+COUNT strlen (BYTE * s);        /* don't want globals.h, sorry */
+
+
 #ifdef VERSION_STRINGS
 static BYTE *prfRcsId = "$Id$";
 #endif
 
 /*
  * $Log$
+ * Revision 1.7  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.6  2001/03/30 19:30:06  bartoldeman
  * Misc fixes and implementation of SHELLHIGH. See history.txt for details.
  *
@@ -44,6 +50,9 @@ static BYTE *prfRcsId = "$Id$";
  * recoded for smaller object footprint, added main() for testing+QA
  *
  * $Log$
+ * Revision 1.7  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.6  2001/03/30 19:30:06  bartoldeman
  * Misc fixes and implementation of SHELLHIGH. See history.txt for details.
  *
@@ -166,7 +175,7 @@ BYTE *
   p = q = s;
   do
   {                             /* generate digits in reverse order */
-    *p++ = "0123456789abcdef"[u % base];
+    *p++ = "0123456789abcdef"[(UWORD)(u % base)];
   }
   while ((u /= base) > 0);
   
@@ -185,11 +194,10 @@ BYTE *
 #define RIGHT   1
 
 /* printf -- short version of printf to conserve space */
-WORD FAR
+WORD printf(CONST BYTE * fmt, ...)
-  init_call_printf(CONST BYTE * fmt, BYTE * args)
 {
   charp = 0;
-  return do_printf(fmt, &args);
+  return do_printf(fmt, (BYTE **)&fmt + 1);
 }
 
 WORD
@@ -216,8 +224,7 @@ COUNT
 {
   int base;
   BYTE s[11],
-   *p,
+      *p;
-   *ltob();
   int c,
     flag,
     size,

kernel/procsupt.asm

@@ -30,6 +30,9 @@
 ; $Id$
 ;
 ; $Log$
+; Revision 1.6  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.5  2001/03/24 22:13:05  bartoldeman
 ; See history.txt: dsk.c changes, warning removal and int21 entry handling.
 ;
@@ -94,9 +97,7 @@
                 extern  _api_ss:wrt DGROUP      ; switching
                 extern  _usr_sp:wrt DGROUP      ; user stacks
                 extern  _usr_ss:wrt DGROUP
-
+                extern  _lpUserStack:wrt DGROUP
-                extern  _kstackp:wrt TGROUP     ; kernel stack
-                extern  _ustackp:wrt TGROUP     ; new task stack
 
                 extern  _break_flg:wrt DGROUP   ; break detected flag
                 extern  _int21_handler:wrt TGROUP ; far call system services
@@ -149,6 +150,7 @@ _got_cbreak:
 	pop ds
 	iret
 
+segment	HMA_TEXT
 
 ;
 ;       Special call for switching processes during break handling
@@ -191,8 +193,23 @@ _spawn_int23:
 
                 ; restore to user stack
                 cli					;; Pre-8086 don't disable INT autom.
-                mov     ss,[_usr_ss]
+;*TE PATCH                       
-                mov     sp,[_usr_sp]
+;      CtrlC at DosInput (like C:>DATE does) 
+;      Nukes the Kernel.
+;      
+;      it looks like ENTRY.ASM+PROCSUPT.ASM
+;      got out of sync.
+;      
+;      spawn_int() assumes a stack layout at
+;      usr_ss:usr:sp. but usr:ss currently contains 0
+;      
+;      this patch helps FreeDos to survive CtrlC,
+;      but should clearly be done somehow else.
+                mov     ss, [_lpUserStack+2]
+                mov     sp, [_lpUserStack]
+
+;                mov     ss,[_usr_ss]
+;                mov     sp,[_usr_sp]
                 sti
 
                 ; get all the user registers back
@@ -307,13 +324,8 @@ _spawn_int23:
 
 ??int23_respawn:
 				pop bp					;; Restore the original register
-                jmp 	_int21_handler
+                jmp 	far _int21_handler
 
-
-                global _init_call_spawn_int23
-_init_call_spawn_int23:
-                call _spawn_int23
-                retf
 ;
 ; interrupt enable and disable routines
 ;

kernel/proto.h

@@ -34,6 +34,9 @@ static BYTE *Proto_hRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.13  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.12  2001/03/30 19:30:06  bartoldeman
  * Misc fixes and implementation of SHELLHIGH. See history.txt for details.
  *
@@ -162,18 +165,7 @@ static BYTE *Proto_hRcsId = "$Id$";
 
 #define INIT
 
-#ifdef IN_INIT_MOD
-#define __FAR_WRAPPER(ret, name, proto) \
-	ret FAR name proto;     /* will be expanded to `init_call_<name>' */
-#else
-#define __FAR_WRAPPER(ret, name, proto) \
-	ret name proto; \
-	ret FAR init_call_##name proto; \
-	ret FAR reloc_call_##name proto;
-#endif
-
 /* blockio.c */
-VOID FAR init_call_init_buffers(COUNT anzBuffers);
 ULONG getblkno(struct buffer FAR *);
 VOID setblkno(struct buffer FAR *, ULONG);
 struct buffer FAR *getblock(ULONG blkno, COUNT dsk);
@@ -198,7 +190,7 @@ BOOL con_break(void);
 BOOL StdinBusy(void);
 VOID KbdFlush(void);
 VOID Do_DosIdle_loop(void);
-__FAR_WRAPPER(VOID, sti, (keyboard FAR * kp))
+VOID sti(keyboard FAR * kp);
 
 sft FAR *get_sft(COUNT);
 
@@ -214,6 +206,7 @@ INIT COUNT tolower(COUNT c);
 INIT COUNT toupper(COUNT c);
 INIT VOID mcb_init(mcb FAR * mcbp, UWORD size);
 INIT VOID strcat(REG BYTE * d, REG BYTE * s);
+INIT BYTE FAR *KernelAlloc(WORD nBytes);
 
 /* dosfns.c */
 BYTE FAR *get_root(BYTE FAR *);
@@ -231,8 +224,8 @@ COUNT DosDup(COUNT Handle);
 COUNT DosForceDup(COUNT OldHandle, COUNT NewHandle);
 COUNT DosOpen(BYTE FAR * fname, COUNT mode);
 COUNT DosClose(COUNT hndl);
-VOID DosGetFree(COUNT drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps, COUNT FAR * nc);
+VOID DosGetFree(UBYTE drive, COUNT FAR * spc, COUNT FAR * navc, COUNT FAR * bps, COUNT FAR * nc);
-COUNT DosGetCuDir(COUNT drive, BYTE FAR * s);
+COUNT DosGetCuDir(UBYTE drive, BYTE FAR * s);
 COUNT DosChangeDir(BYTE FAR * s);
 COUNT DosFindFirst(UCOUNT attr, BYTE FAR * name);
 COUNT DosFindNext(void);
@@ -240,14 +233,15 @@ COUNT DosGetFtime(COUNT hndl, date FAR * dp, time FAR * tp);
 COUNT DosSetFtime(COUNT hndl, date FAR * dp, time FAR * tp);
 COUNT DosGetFattr(BYTE FAR * name, UWORD FAR * attrp);
 COUNT DosSetFattr(BYTE FAR * name, UWORD FAR * attrp);
-BYTE DosSelectDrv(BYTE drv);
+UBYTE DosSelectDrv(UBYTE drv);
 COUNT DosDelete(BYTE FAR *path);
 COUNT DosRename(BYTE FAR * path1, BYTE FAR * path2);
 COUNT DosMkdir(BYTE FAR * dir);
 COUNT DosRmdir(BYTE FAR * dir);
 struct dhdr FAR * IsDevice(BYTE FAR * FileName);
-/* extern sft FAR *get_free_sft(WORD FAR * sft_idx);
+BOOL IsShareInstalled(void);
-   #define FcbGetFreeSft(sft_idx) get_free_sft(sft_idx) */
+COUNT DosLockUnlock(COUNT hndl, LONG pos, LONG len, COUNT unlock);
+sft FAR *get_free_sft(WORD FAR * sft_idx);
 
 /*dosidle.asm */
 VOID DosIdle_int(void);
@@ -258,12 +252,12 @@ COUNT ParseDosName(BYTE FAR *, COUNT *, BYTE *, BYTE *, BYTE *, BOOL);
 COUNT ParseDosPath(BYTE FAR *, COUNT *, BYTE *, BYTE FAR *);
 
 /* dsk.c */
-COUNT FAR init_call_blk_driver(rqptr rp);
+COUNT FAR blk_driver(rqptr rp);
 
 /* error.c */
 VOID dump(void);
 VOID panic(BYTE * s);
-__FAR_WRAPPER(VOID, fatal, (BYTE * err_msg))
+VOID fatal(BYTE * err_msg);
 COUNT char_error(request * rq, struct dhdr FAR * lpDevice);
 COUNT block_error(request * rq, COUNT nDrive, struct dhdr FAR * lpDevice);
 
@@ -277,17 +271,17 @@ COUNT dos_findnext(void);
 void ConvertName83ToNameSZ(BYTE FAR *destSZ, BYTE FAR *srcFCBName);
 
 /* fatfs.c */
-__FAR_WRAPPER(COUNT, dos_open, (BYTE FAR * path, COUNT flag))
+COUNT dos_open(BYTE FAR * path, COUNT flag);
 BOOL fcmp(BYTE FAR * s1, BYTE FAR * s2, COUNT n);
 BOOL fcmp_wild(BYTE FAR * s1, BYTE FAR * s2, COUNT n);
 VOID touc(BYTE FAR * s, COUNT n);
-__FAR_WRAPPER(COUNT, dos_close, (COUNT fd))
+COUNT dos_close(COUNT fd);
 COUNT dos_creat(BYTE FAR * path, COUNT attrib);
 COUNT dos_delete(BYTE FAR * path);
 COUNT dos_rmdir(BYTE FAR * path);
 COUNT dos_rename(BYTE FAR * path1, BYTE FAR * path2);
-__FAR_WRAPPER(date, dos_getdate, (void))
+date dos_getdate(void);
-__FAR_WRAPPER(time, dos_gettime, (void))
+time dos_gettime(void);
 COUNT dos_getftime(COUNT fd, date FAR * dp, time FAR * tp);
 COUNT dos_setftime(COUNT fd, date FAR * dp, time FAR * tp);
 LONG dos_getcufsize(COUNT fd);
@@ -298,10 +292,10 @@ BOOL last_link(struct f_node FAR * fnp);
 COUNT map_cluster(REG struct f_node FAR * fnp, COUNT mode);
 UCOUNT readblock(COUNT fd, VOID FAR * buffer, UCOUNT count, COUNT * err);
 UCOUNT writeblock(COUNT fd, VOID FAR * buffer, UCOUNT count, COUNT * err);
-__FAR_WRAPPER(COUNT, dos_read, (COUNT fd, VOID FAR * buffer, UCOUNT count))
+COUNT dos_read(COUNT fd, VOID FAR * buffer, UCOUNT count);
 COUNT dos_write(COUNT fd, VOID FAR * buffer, UCOUNT count);
 LONG dos_lseek(COUNT fd, LONG foffset, COUNT origin);
-UWORD dos_free(struct dpb *dpbp);
+UWORD dos_free(struct dpb FAR *dpbp);
 
 VOID trim_path(BYTE FAR * s);
 
@@ -312,18 +306,19 @@ VOID release_f_node(struct f_node FAR * fnp);
 VOID dos_setdta(BYTE FAR * newdta);
 COUNT dos_getfattr(BYTE FAR * name, UWORD FAR * attrp);
 COUNT dos_setfattr(BYTE FAR * name, UWORD FAR * attrp);
-COUNT media_check(REG struct dpb *dpbp);
+COUNT media_check(REG struct dpb FAR *dpbp);
 struct f_node FAR *xlt_fd(COUNT fd);
 COUNT xlt_fnp(struct f_node FAR * fnp);
 struct dhdr FAR *select_unit(COUNT drive);
+VOID bpb_to_dpb(bpb FAR *bpbp, REG struct dpb FAR * dpbp);
 
 /* fattab.c */
-UCOUNT link_fat(struct dpb *dpbp, UCOUNT Cluster1, REG UCOUNT Cluster2);
+UCOUNT link_fat(struct dpb FAR *dpbp, UCOUNT Cluster1, REG UCOUNT Cluster2);
-UCOUNT link_fat16(struct dpb *dpbp, UCOUNT Cluster1, UCOUNT Cluster2);
+UCOUNT link_fat16(struct dpb FAR *dpbp, UCOUNT Cluster1, UCOUNT Cluster2);
-UCOUNT link_fat12(struct dpb *dpbp, UCOUNT Cluster1, UCOUNT Cluster2);
+UCOUNT link_fat12(struct dpb FAR *dpbp, UCOUNT Cluster1, UCOUNT Cluster2);
-UWORD next_cluster(struct dpb *dpbp, REG UCOUNT ClusterNum);
+UWORD next_cluster(struct dpb FAR *dpbp, REG UCOUNT ClusterNum);
-UWORD next_cl16(struct dpb *dpbp, REG UCOUNT ClusterNum);
+UWORD next_cl16(struct dpb FAR *dpbp, REG UCOUNT ClusterNum);
-UWORD next_cl12(struct dpb *dpbp, REG UCOUNT ClusterNum);
+UWORD next_cl12(struct dpb FAR *dpbp, REG UCOUNT ClusterNum);
 
 /* fcbfns.c */
 VOID DosOutputString(BYTE FAR * s);
@@ -345,8 +340,8 @@ BOOL FcbSetRandom(xfcb FAR * lpXfcb);
 BOOL FcbCalcRec(xfcb FAR * lpXfcb);
 BOOL FcbRandomBlockRead(xfcb FAR * lpXfcb, COUNT nRecords, COUNT * nErrorCode);
 BOOL FcbRandomBlockWrite(xfcb FAR * lpXfcb, COUNT nRecords, COUNT * nErrorCode);
-BOOL FcbRandomRead(xfcb FAR * lpXfcb, COUNT * nErrorCode);
+BOOL FcbRandomIO(xfcb FAR * lpXfcb, COUNT * nErrorCode,
-BOOL FcbRandomWrite(xfcb FAR * lpXfcb, COUNT * nErrorCode);
+                 BOOL (*FcbFunc)(xfcb FAR *, COUNT *));
 BOOL FcbCreate(xfcb FAR * lpXfcb);
 void FcbNameInit(fcb FAR * lpFcb, BYTE * pszBuffer, COUNT * pCurDrive);
 BOOL FcbOpen(xfcb FAR * lpXfcb);
@@ -384,8 +379,17 @@ VOID INRPT FAR int2f_handler(void);
 VOID INRPT FAR empty_handler(void);
 VOID INRPT FAR int0_handler(void);
 
+/* intr.asm */
+/* void init_call_intr(int nr, iregs *rp); */
+INIT COUNT init_DosRead(COUNT hndl, BYTE *bp, UCOUNT n);
+INIT COUNT init_DosOpen(BYTE *fname, COUNT mode);
+INIT COUNT init_DosClose(COUNT hndl);
+INIT VOID init_PSPInit(seg psp_seg);
+INIT VOID keycheck(VOID);
+
 /* ioctl.c */
-COUNT DosDevIOctl(iregs FAR * r, COUNT FAR * err);
+COUNT DosDevIOctl(iregs FAR * r);
+
 
 /* main.c */
 INIT VOID main(void);
@@ -393,11 +397,10 @@ INIT BOOL init_device(struct dhdr FAR * dhp, BYTE FAR * cmdLine, COUNT mode, COU
 
 /* memmgr.c */
 seg far2para(VOID FAR * p);
-seg long2para(LONG size);
+seg long2para(ULONG size);
 VOID FAR *add_far(VOID FAR * fp, ULONG off);
 VOID FAR *adjust_far(VOID FAR * fp);
-__FAR_WRAPPER(COUNT, DosMemAlloc,
+COUNT DosMemAlloc(UWORD size, COUNT mode, seg FAR * para, UWORD FAR * asize);
-	      (UWORD size, COUNT mode, seg FAR * para, UWORD FAR * asize))
 COUNT DosMemLargest(UWORD FAR * size);
 COUNT DosMemFree(UWORD para);
 COUNT DosMemChange(UWORD para, UWORD size, UWORD * maxSize);
@@ -410,16 +413,15 @@ VOID mcb_print(mcb FAR * mcbp);
 
 /* misc.c */
 /*
-__FAR_WRAPPER(VOID, scopy, (REG BYTE * s, REG BYTE * d))
+VOID scopy(REG BYTE * s, REG BYTE * d);
 #define strcpy(d, s)    scopy(s, d)
-__FAR_WRAPPER(VOID, fbcopy, (REG VOID FAR * s, REG VOID FAR * d, REG COUNT n))
+VOID fbcopy(REG VOID FAR * s, REG VOID FAR * d, REG COUNT n);
 
 */
-__FAR_WRAPPER(VOID, strcpy, (REG BYTE * d, REG BYTE * s))
+VOID strcpy(REG BYTE * d, REG BYTE * s);
 #define scopy(s, d)    strcpy(d,s)
-__FAR_WRAPPER(VOID, fmemcpy, (REG VOID FAR * d, REG VOID FAR * s, REG COUNT n))
+VOID fmemcpy(REG VOID FAR * d, REG VOID FAR * s, REG COUNT n);
 #define fbcopy(s, d, n)    fmemcpy(d,s,n)
-void FAR _reloc_call_fmemcpy(REG VOID FAR * d, REG VOID FAR * s, REG COUNT n);
 
 
 /*VOID fscopy(REG BYTE FAR * s, REG BYTE FAR * d);*/
@@ -432,8 +434,8 @@ VOID fstrcpy(REG BYTE FAR * d, REG BYTE FAR * s);
 void memcpy(REG BYTE * d, REG BYTE * s, REG COUNT n);
 #define bcopy(s,d,n) memcpy(d,s,n)
 
-__FAR_WRAPPER(void, fmemset,(REG VOID FAR * s, REG int ch, REG COUNT n))
+void fmemset(REG VOID FAR * s, REG int ch, REG COUNT n);
-__FAR_WRAPPER(void, memset ,(REG VOID     * s, REG int ch, REG COUNT n))
+void memset(REG VOID     * s, REG int ch, REG COUNT n);
 
 
 /* nls.c */
@@ -460,16 +462,16 @@ UWORD syscall_MUX14(DIRECT_IREGS);
 
 /* prf.c */
 VOID put_console(COUNT c);
-__FAR_WRAPPER(WORD, printf, (CONST BYTE * fmt,...))
+WORD printf(CONST BYTE * fmt,...);
 WORD sprintf(BYTE * buff, CONST BYTE * fmt,...);
 VOID hexd(char *title,VOID FAR *p,COUNT numBytes);
 
 /* strings.c */
-__FAR_WRAPPER(COUNT, strlen, (REG BYTE * s))
+COUNT strlen(REG BYTE * s);
 COUNT fstrlen(REG BYTE FAR * s);
 VOID _fstrcpy(REG BYTE FAR * d, REG BYTE FAR * s);
 VOID strncpy(REG BYTE * d, REG BYTE * s, COUNT l);
-__FAR_WRAPPER(COUNT, strcmp, (REG BYTE * d, REG BYTE * s))
+COUNT strcmp(REG BYTE * d, REG BYTE * s);
 COUNT fstrcmp(REG BYTE FAR * d, REG BYTE FAR * s);
 COUNT fstrncmp(REG BYTE FAR * d, REG BYTE FAR * s, COUNT l);
 COUNT strncmp(REG BYTE * d, REG BYTE * s, COUNT l);
@@ -483,7 +485,7 @@ void fstrncpy(REG BYTE FAR * d, REG BYTE FAR * s, COUNT l);
 BYTE *strchr(BYTE * s, BYTE c);
 
 /* sysclk.c */
-WORD FAR init_call_clk_driver(rqptr rp);
+WORD FAR clk_driver(rqptr rp);
 COUNT BcdToByte(COUNT x);
 COUNT BcdToWord(BYTE * x, UWORD * mon, UWORD * day, UWORD * yr);
 COUNT ByteToBcd(COUNT x);
@@ -505,7 +507,7 @@ VOID DosGetDate(BYTE FAR * wdp, BYTE FAR * mp, BYTE FAR * mdp, COUNT FAR * yp);
 COUNT DosSetDate(BYTE FAR * mp, BYTE FAR * mdp, COUNT FAR * yp);
 
 WORD  *is_leap_year_monthdays(int year);
-__FAR_WRAPPER(WORD,DaysFromYearMonthDay,(WORD Year, WORD Month, WORD DayOfMonth))
+WORD DaysFromYearMonthDay(WORD Year, WORD Month, WORD DayOfMonth);
 
 
 
@@ -513,10 +515,9 @@ __FAR_WRAPPER(WORD,DaysFromYearMonthDay,(WORD Year, WORD Month, WORD DayOfMonth)
 COUNT ChildEnv(exec_blk FAR * exp, UWORD * pChildEnvSeg, char far * pathname);
 VOID new_psp(psp FAR * p, int psize);
 VOID return_user(void);
-__FAR_WRAPPER(COUNT, DosExec, (COUNT mode, exec_blk FAR * ep, BYTE FAR * lp))
+COUNT DosExec(COUNT mode, exec_blk FAR * ep, BYTE FAR * lp);
-__FAR_WRAPPER(VOID, InitPSP, (VOID))
+VOID InitPSP(VOID);
-
+VOID p_0(VOID);
-VOID FAR init_call_p_0(VOID);
 
 /* irqstack.asm */
 VOID init_stacks(VOID FAR * stack_base, COUNT nStacks, WORD stackSize);

kernel/segs.inc

@@ -29,6 +29,9 @@
 ; $Header$
 ;
 ; $Log$
+; Revision 1.5  2001/04/15 03:21:50  bartoldeman
+; See history.txt for the list of fixes.
+;
 ; Revision 1.4  2001/03/21 02:56:26  bartoldeman
 ; See history.txt for changes. Bug fixes and HMA support are the main ones.
 ;
@@ -58,7 +61,7 @@
 ;
 
 group	TGROUP		_TEXT _IO_TEXT _IO_FIXED_DATA 
-group	DGROUP		_FIXED_DATA _DATA _BSS _BSSEND
+group	DGROUP		_FIXED_DATA _DATA _BSS _BSSEND ID_B ID ID_E
 group	HGROUP		HMA_TEXT_START HMA_TEXT HMA_TEXT_END
 group	IGROUP		INIT_TEXT_START INIT_TEXT INIT_TEXT_END
 
@@ -70,6 +73,9 @@ segment	_DATA		class=DATA align=2
 segment	_BSSSTART       class=BSS align=2
 segment	_BSS		class=BSS align=2
 segment	_BSSEND		class=BSS
+segment ID_B            class=ID   align=2
+segment ID              class=ID   align=2
+segment ID_E            class=ID   align=2
 segment	HMA_TEXT_START	class=HMA
 segment	HMA_TEXT	class=HMA
 segment	HMA_TEXT_END	class=HMA

kernel/strings.c

@@ -34,6 +34,9 @@ static BYTE *stringsRcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2001/03/21 02:56:26  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -104,11 +107,6 @@ COUNT strlen(REG BYTE * s)
   return cnt;
 }
 
-COUNT FAR init_call_strlen(REG BYTE * s)
-{
-  return strlen(s);
-}
-
 COUNT fstrlen(REG BYTE FAR * s)
 {
   REG WORD cnt = 0;
@@ -145,11 +143,6 @@ COUNT strcmp(REG BYTE * d, REG BYTE * s)
   return *d - *s;
 }
 
-COUNT FAR init_call_strcmp(REG BYTE * d, REG BYTE * s)
-{
-  return strcmp(d, s);
-}
-
 COUNT fstrcmp(REG BYTE FAR * d, REG BYTE FAR * s)
 {
   while (*s != '\0' && *d != '\0')

kernel/sysclk.c

@@ -35,6 +35,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2001/03/21 02:56:26  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -121,17 +124,16 @@ static UWORD Month,
   Year;
 static BYTE bcdMinutes;
 static BYTE bcdHours;
-static BYTE bcdHundredths;
+/** static BYTE bcdHundredths;*/
 static BYTE bcdSeconds;
 
 static ULONG Ticks;
 UWORD DaysSinceEpoch = 0;
 
-WORD FAR init_call_clk_driver(rqptr rp)
+WORD FAR clk_driver(rqptr rp)
 {
   COUNT 
     c;
-  int FAR *cp;
   WORD *pdays;
 
   switch (rp->r_command)
@@ -337,9 +339,3 @@ VOID DayToBcd(BYTE * x, UWORD * mon, UWORD * day, UWORD * yr)
   x[3] = ByteToBcd(*yr / 100);
   x[2] = ByteToBcd(*yr % 100);
 }
-
-/* Used by `main.c'. */
-VOID FAR init_call_WritePCClock(ULONG ticks)
-{
-  WritePCClock(ticks);
-}

kernel/systime.c

@@ -37,6 +37,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.5  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.4  2001/03/21 02:56:26  bartoldeman
  * See history.txt for changes. Bug fixes and HMA support are the main ones.
  *
@@ -133,11 +136,6 @@ WORD DaysFromYearMonthDay(WORD Year, WORD Month, WORD DayOfMonth)
       + ((Year - 1980 + 3) / 4);
     
 }
-WORD FAR init_call_DaysFromYearMonthDay(WORD Year, WORD Month, WORD DayOfMonth)
-{
-    return DaysFromYearMonthDay(Year,Month,DayOfMonth);
-}    
-
 
 /* common - call the clock driver */
 void ExecuteClockDriverRequest(BYTE command)

kernel/task.c

@@ -35,6 +35,9 @@ static BYTE *RcsId = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.10  2001/04/15 03:21:50  bartoldeman
+ * See history.txt for the list of fixes.
+ *
  * Revision 1.9  2001/03/31 20:54:52  bartoldeman
  * Made SHELLHIGH behave more like LOADHIGH.
  *
@@ -149,6 +152,8 @@ static BYTE *RcsId = "$Id$";
  * Initial revision.
  */
 
+extern VOID ClaimINITDataSegment(VOID);
+
 #define toupper(c)	((c) >= 'a' && (c) <= 'z' ? (c) + ('A' - 'a') : (c))
 
 #define LOADNGO 0
@@ -160,7 +165,7 @@ static BYTE *RcsId = "$Id$";
 static exe_header header;
 
 #define CHUNK 32256
-#define MAXENV 32768
+#define MAXENV 32768u
 #define ENV_KEEPFREE 83         /* keep unallocated by environment variables */
 	/* The '65' added to nEnvSize does not cover the additional stuff:
 	   + 2 bytes: number of strings
@@ -311,12 +316,10 @@ COUNT ChildEnv(exec_blk FAR * exp, UWORD * pChildEnvSeg, char far * pathname)
 VOID new_psp(psp FAR * p, int psize)
 {
   REG COUNT i;
-  BYTE FAR *lpPspBuffer;
   psp FAR *q = MK_FP(cu_psp, 0);
 
   /* Clear out new psp first                              */
-  for (lpPspBuffer = (BYTE FAR *) p, i = 0; i < sizeof(psp); ++i)
+  fmemset(p, 0, sizeof(psp));
-    *lpPspBuffer = 0;
 
   /* initialize all entries and exits                     */
   /* CP/M-like exit point                                 */
@@ -364,7 +367,7 @@ VOID new_psp(psp FAR * p, int psize)
   p->ps_filetab = p->ps_files;
 
   /* clone the file table                                 */
-  if (InDOS > 0)
+  if (p!=q)
   {
     REG COUNT i;
 
@@ -376,15 +379,6 @@ VOID new_psp(psp FAR * p, int psize)
         p->ps_filetab[i] = 0xff;
     }
   }
-  else
-  {
-    /* initialize stdin, stdout, etc                        */
-    p->ps_files[STDIN] = 0;     /* stdin                */
-    p->ps_files[STDOUT] = 1;    /* stdout               */
-    p->ps_files[STDERR] = 2;    /* stderr               */
-    p->ps_files[STDAUX] = 3;    /* stdaux               */
-    p->ps_files[STDPRN] = 4;    /* stdprn               */
-  }
 
   /* first command line argument                          */
   p->ps_fcb1.fcb_drive = 0;
@@ -540,14 +534,16 @@ COUNT DosComLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
       sp = MK_FP(mem, 0);
     else
     {                 /* test the filesize against the allocated memory */
+      UWORD tmp = 16;
+        
       sp = MK_FP(mem, sizeof(psp));
 
       /* This is a potential problem, what to do with .COM files larger than
          the allocated memory?
          MS DOS always only loads the very first 64KB - sizeof(psp) bytes.
          -- 1999/04/21 ska */
-      if (com_size > (LONG) asize << 4)	/* less memory than the .COM file has */
+      if ((ULONG)com_size > (ULONG)asize * tmp)  /* less memory than the .COM file has */
-        com_size = (LONG) asize << 4;
+        (ULONG)com_size = (ULONG)asize * tmp; /* << 4 */
     }
     do
     {
@@ -597,6 +593,14 @@ COUNT DosComLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
       {
         cu_psp = mem;
         dta = p->ps_dta;
+
+        /* if that's the first time, we arrive here
+           now we 1 microsecond from COMMAND.COM
+           now we claim the ID = INIT_DATA segment,
+           which should no longer be used
+        */
+        ClaimINITDataSegment();
+
         if (InDOS)
           --InDOS;
         exec_user(irp);
@@ -693,13 +697,15 @@ COUNT DosExeLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
     mem = exp->load.load_seg;
 
   /* compute image offset from the header                 */
-  image_offset = (ULONG) header.exHeaderSize * 16l;
+  asize = 16;
+  image_offset = (ULONG)header.exHeaderSize * asize;
 
   /* compute image size by removing the offset from the   */
   /* number pages scaled to bytes plus the remainder and  */
   /* the psp                                              */
   /*  First scale the size                                */
-  image_size = (ULONG) (header.exPages) * 512l;
+  asize = 512;
+  image_size = (ULONG)header.exPages * asize;
   /* remove the offset                                    */
   image_size -= image_offset;
 
@@ -777,7 +783,15 @@ COUNT DosExeLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
     asize = exe_size;
 
 #ifdef DEBUG  
-    printf("loading %s at %04x\n", (char*)namep,mem);
+{ COUNT i = 0;
+  printf("loading '");
+  while (namep[i]!=0)
+  {
+    cso(namep[i]);
+    i++;
+  }
+  printf("' at %04x\n", mem);
+}
 #endif    
 
 /* /// Added open curly brace and "else" clause.  We should not attempt
@@ -844,6 +858,8 @@ COUNT DosExeLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
 
   if (exe_size > 0)
   {
+    UCOUNT tmp = 16;
+      
     sp = MK_FP(start_seg, 0x0);
 
     if (mode != OVERLAY)
@@ -851,7 +867,7 @@ COUNT DosExeLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
       if ((header.exMinAlloc == 0) && (header.exMaxAlloc == 0))
       {
         sp = MK_FP(start_seg + mp->m_size
-                   - (image_size + 15) / 16, 0);
+                   - (image_size + 15) / tmp, 0);
       }
     }
 
@@ -928,6 +944,15 @@ COUNT DosExeLoader(BYTE FAR * namep, exec_blk FAR * exp, COUNT mode)
     case LOADNGO:
       cu_psp = mem;
       dta = p->ps_dta;
+
+
+      /* if that's the first time, we arrive here
+         now we 1 microsecond from COMMAND.COM
+         now we claim the ID = INIT_DATA segment,
+         which should no longer be used
+      */
+      ClaimINITDataSegment();
+
       if (InDOS)
         --InDOS;
       exec_user(irp);
@@ -954,15 +979,14 @@ COUNT DosExec(COUNT mode, exec_blk FAR * ep, BYTE FAR * lp)
 {
   COUNT rc,
     err;
-  exec_blk leb = *ep;
+  exec_blk leb;
+
 /*  BYTE FAR *cp;*/
   BOOL bIsCom = FALSE;
 
+  fmemcpy(&leb, ep, sizeof(exec_blk));
   /* If file not found - free ram and return error        */
 
-  if (cu_psp == DOS_PSP)
-    InitPSP();
-
   if ((rc = DosOpen(lp, 0)) < 0)
   {
     return DE_FILENOTFND;
@@ -985,43 +1009,22 @@ COUNT DosExec(COUNT mode, exec_blk FAR * ep, BYTE FAR * lp)
     rc = DosExeLoader(lp, &leb, mode);
   }
   if (mode == LOAD && rc == SUCCESS)
-    *ep = leb;
+    fmemcpy(ep, &leb, sizeof(exec_blk));
 
   return rc;
 }
 
-COUNT FAR init_call_DosExec(COUNT mode, exec_blk FAR * ep, BYTE FAR * lp)
-{
-  return DosExec(mode, ep, lp);
-}
-
-VOID InitPSP(VOID)
-{
-  psp FAR *p = MK_FP(DOS_PSP, 0);
-/*
-    Fixed Device Driver Print output.
- */
-  if(p->ps_exit == 0x000020cd)
-    return;
-  new_psp(p, 0);
-}
-
-UBYTE P_0_startmode = 0;
-
 /* process 0       */
-VOID FAR reloc_call_p_0(VOID)
+VOID p_0(VOID)
 {
   exec_blk exb;
   CommandTail Cmd;
   BYTE FAR *szfInitialPrgm = (BYTE FAR *) Config.cfgInit;
   int rc;
-/* init a fake psp file at seg 50:0000 */
-  psp FAR *p = MK_FP(cu_psp, 0);
-  new_psp(p, 0);
 
   /* Execute command.com /P from the drive we just booted from    */
   exb.exec.env_seg = master_env;
-  strcpy(Cmd.ctBuffer, Config.cfgInitTail);
+  fstrncpy(Cmd.ctBuffer, Config.cfgInitTail, sizeof(Config.cfgInitTail)-1);
 
   for (Cmd.ctCount = 0; Cmd.ctCount < 127; Cmd.ctCount++)
     if (Cmd.ctBuffer[Cmd.ctCount] == '\r')

sys/sys.mak

@@ -4,6 +4,9 @@
 # $Id$
 #
 # $Log$
+# Revision 1.7  2001/04/15 03:21:50  bartoldeman
+# See history.txt for the list of fixes.
+#
 # Revision 1.6  2001/03/25 04:33:56  bartoldeman
 # Fix compilation of sys.com. Now a proper .com file once again.
 #
@@ -43,7 +46,7 @@
 !include "..\config.mak"
 
 CFLAGS = -mt -1- -v -vi- -k- -f- -ff- -O -Z -d -I$(INCLUDEPATH);..\hdr \
-	 -DI86;PROTO -zAHMA -zCHMA_TEXT -zPDGROUP
+	 -DI86;PROTO
 
 #               *Implicit Rules*
 .c.obj:
@@ -54,11 +57,11 @@ CFLAGS = -mt -1- -v -vi- -k- -f- -ff- -O -Z -d -I$(INCLUDEPATH);..\hdr \
 
 #		*List Macros*
 
-LIBS =  ..\lib\device.lib
+LIBS =  floppy.obj
 
 EXE_dependencies =  \
  sys.obj \
- $(LIBS)
+ floppy.obj
 
 #		*Explicit Rules*
 production:     ..\bin\sys.com
@@ -72,9 +75,12 @@ b_fat12.h:      ..\boot\b_fat12.bin bin2c.com
 b_fat16.h:      ..\boot\b_fat16.bin bin2c.com
                 bin2c ..\boot\b_fat16.bin b_fat16.h b_fat16
 
+floppy.obj:     ..\drivers\floppy.asm
+                $(NASM) -fobj -DSYS=1 ..\drivers\floppy.asm -o floppy.obj 
+            
 sys.com:        $(EXE_dependencies)
-		$(LINK) /m/t/c $(LIBPATH)\c0t.obj+sys.obj,sys,,\
+		$(LINK) /m/t/c $(LIBPATH)\c0t.obj+sys.obj+$(LIBS),sys,,\
-                $(LIBS)+$(CLIB);
+                $(CLIB);
 
 clobber:	clean
                 $(RM) sys.com b_fat12.h b_fat16.h
@@ -84,3 +90,8 @@ clean:
 
 #		*Individual File Dependencies*
 sys.obj: sys.c ..\hdr\portab.h ..\hdr\device.h b_fat12.h b_fat16.h
+
+# RULES (DEPENDENCIES)
+# ----------------
+.asm.obj :
+        $(NASM) -f obj -DSYS=1 $<