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page 80,132
title CP/DOS DosSetVerify mapper
dosxxx segment byte public 'dos'
assume cs:dosxxx,ds:nothing,es:nothing,ss:nothing
;**********************************************************************
;*
;* MODULE: dossetverify Set new verify switch value
;*
;* FILE NAME: dos054.asm
;*
;* CALLING SEQUENCE:
;*
;* push word verify setting
;* call dossetverify
;*
;* MODULES CALLED: PC-DOS Int 21h, ah=2eh, get verify setting
;*
;*********************************************************************
public dossetverify
.sall
.xlist
include macros.inc
.list
error_code equ 0002h
str struc
old_bp dw ?
return dd ?
verify dw ? ; new verify settings value
str ends
dossetverify proc far
Enter dossetverify ; push registers
mov ax,[bp].verify ; check request
cmp al,1 ; for validity
jg error
mov ah,2eh ; setup new verify value
int 21h
sub ax,ax ; set good return code
jmp short exit ; return
error: mov ax,error_code ; set error return code
exit: Mexit ; pop registers
ret size str - 6 ; return
dossetverify endp
dosxxx ends
end
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