tyler.durden
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kernel
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As per a suggestion from Arkady: use CPU to enforce 8086 etc instructions. 

git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@879 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2004-04-13 20:41:15 +00:00
parent 74970d953b
commit 6f6ceadebc
6 changed files with 17 additions and 10 deletions
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2
hdr/stacks.inc
View File

@ -128,7 +128,7 @@ irp_hi equ 26
;
%IFNDEF I386
%IF XCPU < 386
; no need to save/restore anything
; error 1 2 3

2
kernel/entry.asm
View File

@ -344,7 +344,7 @@ int21_exit_nodec:
pop bp ; get back user stack
pop si
%IFDEF I386
%if XCPU >= 386
%ifdef WATCOM
sub bp, 4 ; for fs and gs only
%else

4
kernel/int2f.asm
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@ -132,7 +132,7 @@ IntDosCal:
cld
%IFDEF I386
%if XCPU >= 386
%ifdef WATCOM
mov si,fs
mov di,gs
@ -145,7 +145,7 @@ IntDosCal:
extern _int2F_12_handler
call _int2F_12_handler
%IFDEF I386
%if XCPU >= 386
%ifdef WATCOM
mov fs,si
mov gs,di

2
kernel/kernel.asm
View File

@ -324,7 +324,7 @@ _LoL_nbuffers dw 1 ; 003F number of buffers
global _BootDrive
_BootDrive db 1 ; 0043 drive we booted from
%IFNDEF I386
%IF XCPU < 386
db 0 ; 0044 cpu type (1 if >=386)
%ELSE
db 1 ; 0044 cpu type (1 if >=386)

11
kernel/segs.inc
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@ -27,6 +27,17 @@
; $Header$
;
; CPU specification -- putting it here because all .asm files include this
; file __NASM_VER__ was introduced in NASM after CPU -- ver 0.98 doesn't
; understand it
%ifdef __NASM_VER__
%if XCPU == 86
CPU 8086
%else
CPU XCPU
%endif
%endif
group PGROUP PSP
group LGROUP _LOWTEXT _IO_TEXT _IO_FIXED_DATA _TEXT
group DGROUP _FIXED_DATA _BSS _DATA _DATAEND CONST CONST2 DCONST DYN_DATA

6
mkfiles/generic.mak
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@ -20,11 +20,7 @@ NASMFLAGS=$(NASMFLAGS) -DWITHFAT32
!endif
NASM=$(XNASM)
!if $(XCPU) == 386
NASMFLAGS = $(NASMFLAGS) -i../hdr/ -DI386
!else
NASMFLAGS = $(NASMFLAGS) -i../hdr/
!endif
NASMFLAGS = $(NASMFLAGS) -i../hdr/ -DXCPU=$(XCPU)
LINK=$(XLINK)