51 lines
799 B
NASM
51 lines
799 B
NASM
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DOSSEG
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.MODEL LARGE
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.CODE
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.286
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Handle equ word ptr [bp+6]
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Offsetl equ word ptr [bp+8]
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Offseth equ word ptr [bp+10]
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Origin equ byte ptr [bp+12]
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public _DosSeek
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_DosSeek proc far
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push bp
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mov bp,sp
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push si
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push di
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push bx
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push ds
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push es
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mov ah,42h
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mov al,Origin
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mov bx,Handle
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mov cx,Offseth
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mov dx,Offsetl
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int 21h
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jnc @f ; dx:ax already set for return
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mov ax,0ffh
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cwd ; -1 error return
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@@:
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pop es
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pop ds
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pop bx
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pop di
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pop si
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leave
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retf
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_DosSeek endp
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end
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