;--------------------------------------------------------------------------
;--------------------------------------------------------------------------
;--------------------------------------------------------------------------
;--------------------------------------------------------------------------
;
; DOS32 V2.4 routines for using V2.4 code with DOS32 v3.0.
;
;
;--------------------------------------------------------------------------
;--------------------------------------------------------------------------
;--------------------------------------------------------------------------
.386
.model flat, pascal
.stack 8000h
.code
IFDEF masm ; Allow MASM assembly
global EQU externdef
ENDIF
INCLUDE V24.INC ; Define all publics and externs
;GetIRQVector PROC Uses EAX EBX
; and bl,0fh
; cmp bl,8
; jb J2
; add bl,60h
;J2: add bl,8h
; mov ax,204h
; int 31h
; ret
;GetIRQVector ENDP
;
;SetIRQVector PROC Uses EAX EBX
; and bl,0fh
; cmp bl,8
; jb J1
; add bl,60h
;J1: add bl,8h
; mov ax,205h
; int 31h
; ret
;SetIRQVector ENDP
;
;GetIntVector PROC Uses EAX
; mov ax,204h
; int 31h
; ret
;GetIntVector ENDP
;
;SetIntVector PROC Uses EAX
; mov ax,205h
; int 31h
; ret
;SetIntVector ENDP
AllocDMAregion PROC Uses EAX
mov ax,0EE41h
int 31h
ret
AllocDMAregion ENDP
Allocate_Memory PROC
mov ax,0EE42h
int 31h
ret
Allocate_Memory ENDP
align 4
CODE32_sel DW ? ; Selector
DATA32_sel DW ? ; Selector
Zero_sel DW ? ; Selector
PIC1_Base DB 8 ; IRQ 0..7
PIC2_Base DB 70h ; IRQ 0..7
Environment_segment DW ? ; real mode segment
Environment_addr DD ? ; 32bit offset
PSP_segment DW ? ; real mode segment
PSP_addr DD ? ; 32bit offset
_0b8000h DD 0b8000h ; 32bit offset
_0a0000h DD 0a0000h ; 32bit offset
CODE32_addr DD ? ; 32bit offset
Zero_Addr DD ? ; 32bit offset
_the_start:
mov ax,0EE00h
int 31h
mov Zero_sel,bx
mov CODE32_sel,cs
mov DATA32_sel,ds
mov ax,0EE02h
int 31h
mov CODE32_addr,ebx
neg ebx
mov Zero_Addr,ebx
add _0a0000h,ebx
add _0b8000h,ebx
mov PSP_addr, esi
sub esi,ebx
shr esi,4
mov PSP_segment,si
mov Environment_addr, edi
sub edi,ebx
shr edi,4
mov Environment_segment,di
jmp Start32
END _the_start
