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SYSINT13.ASM
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Assembly Source File
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1987-10-06
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1KB
|
76 lines
name test
_text segment byte public 'code'
dgroup group _data,_bss
assume cs:_text,ds:dgroup,ss:dgroup
_text ends
_data segment word public 'data'
_d@ label byte
_data ends
_bss segment word public 'bss'
_b@ label byte
_bss ends
_text segment byte public 'code'
public _sysint13
flags dw ?
@ab equ 4
_sysint13 proc
push bp
mov bp,sp
irp reg,<ax,bx,cx,dx,si,di,ds,es>
push reg
endm
mov bx,@ab[bp]
mov ax,[bx]
mov cx,4[bx]
mov dx,6[bx]
mov si,10[bx]
mov di,12[bx]
mov ds,ss:[14][bx]
mov es,ss:[16][bx]
mov bx,ss:[2][bx]
push bp
int 13h
pop bp
pushf
pop flags
push bx
mov bx,@ab[2][bp]
pop [2][bx]
mov ss:[16][bx],es
mov ss:[14][bx],ds
mov [bx],ax
mov 4[bx],cx
mov 6[bx],dx
mov 10[bx],si
mov 12[bx],di
irp reg,<es,ds,di,si,dx,cx,bx,ax>
pop reg
endm
pop bp
mov ax,flags
ret
_sysint13 endp
_text ends
_data segment word public 'data'
_s@ label byte
_data ends
_text segment byte public 'code'
public _sysint13
_text ends
end