Function 90h Device Busy Loop (except PC, PCjr, XT)
entry AH 90h
AL type code:
00h disk
01h diskette
02h keyboard
03h PS/2 pointing device
80h network (ES:BX = pointer to network control block)
0FCh hard disk reset (PS/2)
0FDh diskette motor start
0FEh printer
ES:BX pointer to request block for type codes 80h through 0BFh
return CF 1 (set) if wait time satisfied
0 (clear) if driver must perform wait
note Used by NETBIOS
Type codes are allocated as follows:
00h-7Fh non-reentrant devices; OS must arbitrate access
80h-BFh reentrant devices; ES:BX points to a unique control block
C0h-FFh wait-only calls, no complementary int 15, fn91h call
file: /Techref/int/15f/90.htm, 0KB, , updated: 2001/5/3 14:15, local time: 2024/8/14 21:47,
18.117.172.240:LOG IN
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://sxlist.com/TECHREF/int/15f/90.htm"> int 15f 90</A> |
Did you find what you needed? |
Welcome to sxlist.com!sales, advertizing, & kind contributors just like you! Please don't rip/copy (here's why Copies of the site on CD are available at minimal cost. |
Welcome to sxlist.com! |
.