TIP: Click on subject to list as thread! ANSI
echo: 80xxx
to: DARRYL GREGORASH
from: JASEN BETTS
date: 1998-02-11 16:22:00
subject: System timer tick counter

DG>  RF>   Does anyone know why a doubleword (40:6C thru 40:6F) is
DG>  RF> reserved in the   BIOS Data Area to hold the system timer
DG>  RF> ticks (18.2xxxx per second), but   only uses 3 of the 4
DG>  RF> bytes to hold the number of timer ticks?
DG>
DG> Because a simple "mov DWO PTR sys_time, eax" is far easier than any of
DG> the alternatives using only 3 storage bytes.
I'm sure the designers of the XT BIOS had that in mind :-)
--- EzyQwk V1.20
---------------
* Origin: CSS Brisbane, Qld, Australia. (61-7-3367-3890) (3:640/350)

SOURCE: echomail via exec-pc

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.