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|
;
page 80,132
;
title CP/DOS DosDelete mapper
;
dosxxx segment byte public 'dos'
assume cs:dosxxx,ds:nothing,es:nothing,ss:nothing
;
; ************************************************************************* *
; *
; * MODULE: DosDelete
; *
; * FILE NAME: DOS012.ASM
; *
; * FUNCTION: This module removes a directory entry associated with a
; * filename.
; *
; *
; * CALLING SEQUENCE:
; *
; * PUSH@ ASCIIZ FileName ; FileName path
; * PUSH@ DWORD 0 ; Reserved (must be zero)
; * CALL DosDelete
; *
; * RETURN SEQUENCE:
; *
; * IF ERROR (AX not = 0)
; *
; * AX = Error Code:
; * o Invalid file path name
; *
; * MODULES CALLED: DOS int 21H function 41H
; *
; *
; *
; *************************************************************************
public DosDelete
.sall
.xlist
include macros.inc
.list
str struc
old_bp dw ?
return dd ?
dtrm12 dd ? ; reserved, always 0
asc012 dd ? ; file name path pointer
str ends
DosDelete proc far
Enter DosDelete ; push registers
lds dx,dword ptr [bp].asc012 ; file path name
mov ah,041h
int 21h ; delete the file
jc err012 ; jump if no error
sub ax,ax ; set good return code
err012:
mexit ; pop registers
ret size str - 6 ; return
DosDelete endp
dosxxx ends
end
|
