Int 24

[anoop007]

I don't know much assembly.. here are
some questions..

What are these INT 24 errors that I get
while i access bad floppies?

How do TSRs work?

[ChimpFace9000]

Write the errors that you get.

[anoop007]

I don't remember but I think it was
Fail on INT 24

[ChimpFace9000]

                       INT 24 - Critical Error Handler

       no input data

       on entry to INT 24:
       AH = bit 7 of register AH is set to one if other than disk error
          = bit 7 of register AH is set to zero if disk error
            AL = failing drive number
            AH = bits 0-2 indicate affected disk area and read/write status

                 ¦5¦4¦3¦2¦1¦0¦  AH
                  ¦ ¦ ¦ ¦ ¦ +---- read = 0, write = 1
                  ¦ ¦ ¦ +------- 00=DOS, 01=FAT, 10=DIR, 11=data area
                  ¦ ¦ +-------- 0=FAIL not allowed, 1=FAIL allowed
                  ¦ +--------- 0=RETRY not allowed, 1=RETRY allowed
                  +---------- 0=IGNORE not allowed, 1=IGNORE allowed

       DI = error code in lower byte
       BP:SI = pointer to device header control block where additional
               information about the error can be found

[anoop007]

Thanks.