TIP: Click on subject to list as thread! ANSI
echo: 80xxx
to: KURT WISMER
from: FRANOIS DE MEY
date: 1997-08-13 01:29:00
subject: question about int 13h..

Hi coder, 
 
 KW> ok, i have a quick question about something my source of info doesn't
 KW> explicitly state...
 KW> int 13h, function 8h returns the number of tracks and the number of
 KW> sectors per track in cx... it also seems to return something in ax
 KW> which my info doesn't make mention of but what seems to be just the
 KW> number of sectors per track all by itself...
 KW> i was wondering if that is what is actually happening or if it was
 KW> just a coincidence... i certainly wouldn't mind dropping the three
 KW> bytes needed for and cx, 3f if i could just get the number i want from
 KW> ax... 
 In my doc ( HlpPc 2.1 ), it's said that int 13h fct 8 return in AH the 
tatus
 of last disk operation, I will show U what it say:
   00  no error
   01  bad command passed to driver
   02  address mark not found or bad sector
   03  diskette write protect error
   04  sector not found
   05  fixed disk reset failed
   06  diskette changed or removed
   07  bad fixed disk parameter table
   08  DMA overrun
   09  DMA access across 64k boundary
   0A  bad fixed disk sector flag
   0B  bad fixed disk cylinder
   0C  unsupported track/invalid media
   0D  invalid number of sectors on fixed disk format
   0E  fixed disk controlled data address mark detected
   0F  fixed disk DMA arbitration level out of range
   10  ECC/CRC error on disk read
   11  recoverable fixed disk data error, data fixed by ECC
   20  controller error (NEC for floppies)
   40  seek failure
   80  time out, drive not ready
   AA  fixed disk drive not ready
   BB  fixed disk undefined error
   CC  fixed disk write fault on selected drive
   E0  fixed disk status error/Error reg = 0
   FF  sense operation failed
 I hope it'll be useful 2 U.
                                FeP
... Coding is so funny...
--- Blue Wave/DOS v2.30 [NR]
---------------
* Origin: Programmer's Paradise -Belgium- 32-10-813088 (2:293/2009)

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™.