mirror of
https://github.com/FDOS/kernel.git
synced 2025-07-28 08:14:07 +02:00
fix nasm warning - add missing colon to label
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1373 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Kenneth J Davis
parent
240bcc30e2
commit
65f8276a45
@ -32,25 +32,25 @@
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%include "ludivmul.inc"
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segment PSP
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segment PSP
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extern _ReqPktPtr:wrt LGROUP
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STACK_SIZE equ 384/2 ; stack allocated in words
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;************************************************************
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;************************************************************
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; KERNEL BEGINS HERE, i.e. this is byte 0 of KERNEL.SYS
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;************************************************************
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;************************************************************
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..start:
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entry:
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entry:
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jmp short realentry
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;************************************************************
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;************************************************************
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; KERNEL CONFIGURATION AREA
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; this is copied up on the very beginning
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; it's a good idea to keep this in sync with KConfig.h
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;************************************************************
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;************************************************************
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global _LowKernelConfig
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_LowKernelConfig:
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db 'CONFIG' ; constant
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@ -68,12 +68,12 @@ BootHarddiskSeconds db 0 ;
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configend:
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;************************************************************
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;************************************************************
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; KERNEL CONFIGURATION AREA END
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;************************************************************
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;************************************************************
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;************************************************************
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;************************************************************
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; KERNEL real entry (at ~60:20)
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;
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; moves the INIT part of kernel.sys to high memory (~9000:0)
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@ -81,7 +81,7 @@ configend:
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; to aid debugging, some '123' messages are output
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; this area is discardable and used as temporary PSP for the
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; init sequence
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;************************************************************
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;************************************************************
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realentry: ; execution continues here
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@ -96,13 +96,13 @@ realentry: ; execution continues here
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pop bx
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pop ax
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jmp far kernel_start
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jmp far kernel_start
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beyond_entry: resb 256-(beyond_entry-entry)
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; scratch area for data (DOS_PSP)
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segment INIT_TEXT
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extern _FreeDOSmain
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extern _FreeDOSmain
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;
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; kernel start-up
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@ -117,60 +117,60 @@ kernel_start:
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popf
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pop bx
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mov ax,seg init_tos
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cli
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mov ss,ax
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mov sp,init_tos
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int 12h ; move init text+data to higher memory
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mov cl,6
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shl ax,cl ; convert kb to para
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mov dx,15 + init_end wrt INIT_TEXT
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mov cl,4
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shr dx,cl
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sub ax,dx
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mov es,ax
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mov dx,__INIT_DATA_START wrt INIT_TEXT ; para aligned
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shr dx,cl
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add ax,dx
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mov ss,ax ; set SS to init data segment
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sti ; now enable them
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mov ax,cs
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mov dx,__InitTextStart wrt HMA_TEXT ; para aligned
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shr dx,cl
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mov ax,seg init_tos
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cli
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mov ss,ax
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mov sp,init_tos
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int 12h ; move init text+data to higher memory
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mov cl,6
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shl ax,cl ; convert kb to para
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mov dx,15 + init_end wrt INIT_TEXT
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mov cl,4
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shr dx,cl
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sub ax,dx
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mov es,ax
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mov dx,__INIT_DATA_START wrt INIT_TEXT ; para aligned
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shr dx,cl
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add ax,dx
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mov ss,ax ; set SS to init data segment
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sti ; now enable them
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mov ax,cs
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mov dx,__InitTextStart wrt HMA_TEXT ; para aligned
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shr dx,cl
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%ifdef WATCOM
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add ax,dx
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add ax,dx
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%endif
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mov ds,ax
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mov si,-2 + init_end wrt INIT_TEXT ; word aligned
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lea cx,[si+2]
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mov di,si
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shr cx,1
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std ; if there's overlap only std is safe
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rep movsw
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mov ds,ax
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mov si,-2 + init_end wrt INIT_TEXT ; word aligned
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lea cx,[si+2]
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mov di,si
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shr cx,1
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std ; if there's overlap only std is safe
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rep movsw
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; move HMA_TEXT to higher memory
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sub ax,dx
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mov ds,ax ; ds = HMA_TEXT
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mov ax,es
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sub ax,dx
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mov es,ax ; es = new HMA_TEXT
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; move HMA_TEXT to higher memory
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sub ax,dx
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mov ds,ax ; ds = HMA_TEXT
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mov ax,es
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sub ax,dx
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mov es,ax ; es = new HMA_TEXT
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mov si,-2 + __InitTextStart wrt HMA_TEXT
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lea cx,[si+2]
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mov di,si
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shr cx,1
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rep movsw
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cld
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%ifndef WATCOM ; for WATCOM: CS equal for HMA and INIT
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add ax,dx
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mov es,ax ; otherwise CS -> init_text
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mov si,-2 + __InitTextStart wrt HMA_TEXT
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lea cx,[si+2]
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mov di,si
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shr cx,1
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rep movsw
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cld
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%ifndef WATCOM ; for WATCOM: CS equal for HMA and INIT
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add ax,dx
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mov es,ax ; otherwise CS -> init_text
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%endif
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push es
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mov ax,cont
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push ax
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retf
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cont: ; Now set up call frame
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push es
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mov ax,cont
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push ax
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retf
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cont: ; Now set up call frame
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mov ds,[cs:_INIT_DGROUP]
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mov bp,sp ; and set up stack frame for c
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@ -182,34 +182,34 @@ cont: ; Now set up call frame
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popf
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pop bx
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mov byte [_BootDrive],bl ; tell where we came from
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mov byte [_BootDrive],bl ; tell where we came from
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;!! int 11h
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;!! mov cl,6
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;!! shr al,cl
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;!! inc al
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;!! int 11h
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;!! mov cl,6
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;!! shr al,cl
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;!! inc al
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;!! mov byte [_NumFloppies],al ; and how many
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mov ax,ss
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mov ds,ax
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mov es,ax
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jmp _FreeDOSmain
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jmp _FreeDOSmain
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segment INIT_TEXT_END
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segment INIT_TEXT_END
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;************************************************************
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;************************************************************
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; KERNEL CODE AREA END
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; the NUL device
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;************************************************************
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;************************************************************
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segment CONST
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segment CONST
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;
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; NUL device strategy
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;
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global _nul_strtgy
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global _nul_strtgy
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_nul_strtgy:
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mov word [cs:_ReqPktPtr],bx ;save rq headr
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mov word [cs:_ReqPktPtr+2],es
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@ -218,7 +218,7 @@ _nul_strtgy:
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;
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; NUL device interrupt
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;
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global _nul_intr
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global _nul_intr
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_nul_intr:
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push es
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push bx
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@ -252,12 +252,12 @@ _intvec_table: db 10h
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global _int1e_table
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_int1e_table: times 0eh db 0
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;************************************************************
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;************************************************************
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; KERNEL FIXED DATA AREA
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;************************************************************
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;************************************************************
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segment _FIXED_DATA
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segment _FIXED_DATA
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; Because of the following bytes of data, THIS MODULE MUST BE THE FIRST
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; IN THE LINK SEQUENCE. THE BYTE AT DS:0004 determines the SDA format in
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@ -303,7 +303,7 @@ _clock dd 0 ; 0008 CLOCK$ device
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_syscon dw _con_dev,seg _con_dev ; 000c console device
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global _maxbksize
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_maxbksize dw 512 ; 0010 maximum bytes/sector of any block device
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dd 0 ; 0012 pointer to buffers info structure
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dd 0 ; 0012 pointer to buffers info structure
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global _CDSp
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_CDSp dd 0 ; 0016 Current Directory Structure
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global _FCBp
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@ -342,15 +342,15 @@ _BootDrive db 1 ; 0043 drive we booted from
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%ENDIF
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dw 0 ; 0045 Extended memory in KBytes
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buf_info:
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global _firstbuf
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buf_info:
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global _firstbuf
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_firstbuf dd 0 ; 0047 disk buffer chain
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dw 0 ; 004B Number of dirty buffers
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dd 0 ; 004D pre-read buffer
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dw 0 ; 0051 number of look-ahead buffers
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global _bufloc
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global _bufloc
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_bufloc db 0 ; 0053 00=conv 01=HMA
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global _deblock_buf
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global _deblock_buf
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_deblock_buf dd 0 ; 0054 deblock buffer
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times 3 db 0 ; 0058 unknown
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dw 0 ; 005B unknown
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@ -361,31 +361,31 @@ _VgaSet db 0 ; 0060 unknown
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global _uppermem_link
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_uppermem_link db 0 ; 0063 upper memory link flag
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_min_pars dw 0 ; 0064 minimum paragraphs of memory
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; required by program being EXECed
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; required by program being EXECed
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global _uppermem_root
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_uppermem_root dw 0ffffh ; 0066 dmd_upper_root (usually 9fff)
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_uppermem_root dw 0ffffh ; 0066 dmd_upper_root (usually 9fff)
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_last_para dw 0 ; 0068 para of last mem search
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SysVarEnd:
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;; FreeDOS specific entries
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global _os_setver_minor
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_os_setver_minor db 0
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global _os_setver_major
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_os_setver_major db 5
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global _os_minor
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_os_minor db 0
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global _os_major
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_os_major db 5
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global _rev_number
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_rev_number db 0
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global _version_flags
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_version_flags db 0
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global _f_nodes
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_f_nodes dd 0
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global _f_nodes_cnt
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_f_nodes_cnt dw 0
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global os_release
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extern _os_release
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os_release dw _os_release
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global _os_setver_minor
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_os_setver_minor db 0
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global _os_setver_major
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_os_setver_major db 5
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global _os_minor
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_os_minor db 0
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global _os_major
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_os_major db 5
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global _rev_number
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_rev_number db 0
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global _version_flags
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_version_flags db 0
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global _f_nodes
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_f_nodes dd 0
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global _f_nodes_cnt
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_f_nodes_cnt dw 0
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global os_release
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extern _os_release
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os_release dw _os_release
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;; The first 5 sft entries appear to have to be at DS:00cc
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times (0cch - ($ - DATASTART)) db 0
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@ -591,7 +591,7 @@ _sda_lpFcb times 2 dw 0 ;286 - pointer to callers FCB
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_current_sft_idx dw 0 ;28A - SFT index for next open
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; used by MS NET
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; Pad to 05b2h
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; Pad to 05b2h
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times (292h - ($ - _internal_data)) db 0
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dw __PriPathBuffer ; 292 - "sda_WFP_START" offset in DOS DS of first filename argument
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dw __SecPathBuffer ; 294 - "sda_REN_WFP" offset in DOS DS of second filename argument
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@ -654,11 +654,11 @@ _VirtOpen db 0 ;782 - virtual open flag
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; end of controlled variables
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;
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segment _BSS
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segment _BSS
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;!! global _NumFloppies
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;!!_NumFloppies resw 1
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;!!intr_dos_stk resw 1
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;!!intr_dos_seg resw 1
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;!!_NumFloppies resw 1
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;!!intr_dos_stk resw 1
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;!!intr_dos_seg resw 1
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; mark front and end of bss area to clear
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@ -676,11 +676,11 @@ __ib_end:
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init_tos:
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; the last paragraph of conventional memory might become an MCB
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resb 16
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global __init_end
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global __init_end
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__init_end:
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init_end:
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segment _DATA
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segment _DATA
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; blockdev private stack
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global blk_stk_top
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times 192 dw 0
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@ -723,7 +723,7 @@ segment ID_E
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__INIT_DATA_END:
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segment INIT_TEXT_START
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segment INIT_TEXT_START
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global __InitTextStart
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__InitTextStart: ; and c version
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@ -731,9 +731,9 @@ __InitTextStart: ; and c version
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;
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; start end end of HMA area
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segment HMA_TEXT_START
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segment HMA_TEXT_START
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global __HMATextAvailable
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__HMATextAvailable
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__HMATextAvailable:
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global __HMATextStart
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__HMATextStart:
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@ -748,25 +748,25 @@ begin_hma:
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db 0
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; to minimize relocations
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global _DGROUP_
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_DGROUP_ dw DGROUP
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global _DGROUP_
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_DGROUP_ dw DGROUP
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%ifdef WATCOM
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; 32 bit multiplication + division
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global __U4M
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__U4M:
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LMULU
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LMULU
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global __U4D
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__U4D:
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LDIVMODU
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%endif
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resb 0xd0 - ($-begin_hma)
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; reserve space for far jump to cp/m routine
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resb 5
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resb 0xd0 - ($-begin_hma)
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; reserve space for far jump to cp/m routine
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resb 5
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;End of HMA segment
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segment HMA_TEXT_END
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segment HMA_TEXT_END
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global __HMATextEnd
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__HMATextEnd: ; and c version
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@ -775,20 +775,20 @@ __HMATextEnd: ; and c version
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; The default stack (_TEXT:0) will overwrite the data area, so I create a dummy
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; stack here to ease debugging. -- ror4
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segment _STACK class=STACK stack
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segment _STACK class=STACK stack
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segment CONST
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segment CONST
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; dummy interrupt return handlers
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global _int22_handler
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global _int22_handler
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global _int28_handler
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global _int2a_handler
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global _empty_handler
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_int22_handler:
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_int22_handler:
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_int28_handler:
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_int2a_handler:
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_empty_handler:
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@ -797,8 +797,8 @@ _empty_handler:
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global _initforceEnableA20
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initforceEnableA20:
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call near forceEnableA20
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retf
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call near forceEnableA20
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retf
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global __HMARelocationTableStart
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__HMARelocationTableStart:
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@ -954,7 +954,7 @@ forceEnableA20success:
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pop es
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pop ds
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ret
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;
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; global f*cking compatibility issues:
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;
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