en:docs:dos:api:int21:57:01

Note: This API call is for DOS and Win16 personality only. Use Family API for portability.

2018/09/07 05:04 · prokushev · 0 Comments

Int 21H, AH=57H, AL=01H

Version

2 and higher

Brief

SET FILE'S LAST-WRITTEN DATE AND TIME

Family API

Input

AX = 5701h
BX = file handle
CX = new time (see #01665)
DX = new date (see #01666)

Return

CF clear if successful
CF set on error
    AX = error code (01h,06h) (see #01680)

Notes

Bitfields for file time:

Bit(s) Description
15-11 hours (0-23)
10-5 minutes
4-0 seconds/2

Bitfields for file date:

Bit(s) Description
15-9 year - 1980
8-5 month
4-0 day

AX=5700h,AX=5705h“Windows95”,AX=5707h“Windows95”

Note

2018/09/04 17:23 · prokushev · 0 Comments