Category : C++ Source Code
Archive   : VCCRT2.ZIP
Filename : GETDATE.ASM

page ,132
title getdate
;***
;getdate.asm - contains the _dos_getdate() function
;
; Copyright (c) 1987-1992, Microsoft Corporation. All rights reserved.
;
;Purpose:
; This module contains the _dos_getdate() function.
;
;*******************************************************************************

include version.inc
.xlist
include cmacros.inc
include msdos.inc
.list

dosdate_t struc
day db ?
month db ?
year dw ?
dayofwk db ?
dosdate_t ends

sBegin code

assumes cs,code

page
;***
;void _dos_getdate(p_date) - return the current date
;
;Purpose:
; The function "_dos_getdate" returns the current date, broken down
; into the year (1980-2099), the month (1-12), the day (1-31), and
; the day of the week (0-6, Sun=0, Mon=1, ..., Sat=6).
; It uses INT 21h, Function 2Ah to get the date.
;
;Entry:
; struct dosdate_t {
; unsigned char day;
; unsigned char month;
; unsigned int year;
; unsigned char dayofweek;
; } * p_date; address of structure to store date

;
;Exit:
; The structure pointed to by "p_date" contains the broken down date
;
;Uses:
; BX, CX, DX
;
;Exceptions:
;
;*******************************************************************************

cProc _dos_getdate,,<>

parmDP _p_date ; address of structure to store date

cBegin
callos getdate ; get the date from the DOS
if sizeD
push ds
lds bx,(_p_date)
else
mov bx,(_p_date)
endif
mov [bx.year],cx
mov [bx.month],dh
mov [bx.day],dl
mov [bx.dayofwk],al
if sizeD
pop ds
endif
xor ax,ax ; return nothing useful

ifdef _WINDOWS
cEnd
else
pop bp
ret
cEnd
endif


sEnd

end