TOMIII@MTUS5.BITNET (Thomas Dwyer III) (06/26/90)
Hi there. I've been programming the PCs for years, and this may be a silly question, but what is the best method to determine if a hard drive exists on a machine (PC through PS/2 models)? Examples in ASM or C would be appreciated. Thomas Dwyer III TOMIII @ MTUS5.BITNET Network Programmer Michigan Technological University
mouse@vaxb.acs.unt.edu (Dhanapong Saengrussamee, University of North Texas) (06/28/90)
In article <90177.114030TOMIII@MTUS5.BITNET>, TOMIII@MTUS5.BITNET (Thomas Dwyer III) writes: > Hi there. I've been programming the PCs for years, and this may be a > silly question, but what is the best method to determine if a hard > drive exists on a machine (PC through PS/2 models)? Examples in ASM > or C would be appreciated. > > Thomas Dwyer III -- Have you try Intr $21 function $1C yet? Call with AH = $1C and DL is the drive number in question (0=default, 1=A, 2=B, ...). Look at the first byte of the return at DS:BX, if it is $0F8 then it is harddisk. It's worked for me... Something like: MOV AH,1CH MOV DL,03H ;drive code, 0 default, 1=A, 2=B, ... INT 21H CMP BYTE PTR DS:[BX],0F8H JE FIXED JMP FLOPPY FIXED: ..... FLOPPY: ..... should work, methink ;-}. __Mouse.o()~ -----------------------------------+------------------------------------------ Dhanapong "Mouse" Saengrussamee | AppleLink : U1364 | BITNET : mouse@untvax Technical Support, CECS Dept., | BIX : d.mouse.s | CompuServe : 71301,1516 University of North Texas, | GENie : d.saengrussa | IP : 129.120.1.4 PO Box 5155, Denton, TX 76203-5155 | Internet : mouse@vaxb.acs.unt.edu voice (817) 565-4379 | SPAN : utspan::utandx::untvax::mouse fax (817) 565-4425 | THENet : untvax::mouse ------------------- UUCP : {...!uunet!convex!iex}!ntvax!vaxb.acs.unt.edu!mouse This is not the end. <-- This is a quote from a movie not a This is not the beginning of the end. < disclaimer. I am, just a graduate This is the end of the beginning. < student, not allowed to disclaim - R. Sherman < anything.