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page 60,132
title CP/DOS DOSPutMessage mapper
dosxxx segment byte public 'dos'
assume cs:dosxxx,ds:nothing,es:nothing,ss:nothing
;
; ************************************************************************* *
; *
; * MODULE: DosPutMessage
; *
; * FILE NAME: dos035.asm
; *
; * FUNCTION: diplay message
; *
; * CALLING SEQUENCE:
; *
; * push handle ; file handle
; * push messlgth ; message length
; * push messbuff ; message buffer
; * call dosputmessage
; *
; * RETURN SEQUENCE: AX = return code
; *
; *
; *
; * MODULES CALLED: INT 21H function 4
; *
; *************************************************************************
public dosputmessage
.sall
.xlist
include macros.inc
.list
str struc
old_bp dw ?
return dd ?
MessagePtr dd ? ; message pointer
MessageLength dw ? ; message length
Handle dw ? ; file handle
str ends
dosputmessage proc far
Enter dosputmessage ; save registers
mov bx,[bp].Handle ; get handle
mov cx,[bp].MessageLength ; get message length
lds dx,[bp].MessagePtr ; setup message buffer
mov ah,40h ; load opcode
int 21h ; display message
jc ErrorExit ; jump if error
xor ax,ax ; else set good return code
ErrorExit:
Mexit ; pop registers
ret size str - 6 ; return
dosputmessage endp
dosxxx ends
end
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