lane@dalcs.UUCP (John Wright/Dr. Pat Lane) (10/18/88)
Some BIOS's include a couple of disk functions called read-long and write-
long (INT 13, functions 0Ah and 0Bh) which read and write a disk sector
along with the 4 byte ECC codes. These functions are standard on AT machines
but also supported by at least some XT disk controllers (Western Digital
WD1002S-WX2 for instance).
I'm wondering what applications might use these functions (esp. the write-
long) besides diagnostic programs that check disk drive ECC. I'm wondering
because I have an XT controller which appears to malfunction in that write-
longs can be written on the wrong disk side! I'm wondering if this behaviour
might be related to system crashing during disk accesses that caused me to
reformat the disk and run disk diagnostic programs which turned up this
problem (I've posted details of the problem before).
Thank's for any hints.
--
John Wright ///////////////// Phone: 902-424-3805 or 902-424-6527
Post: c/o Dr Pat Lane, Biology Dept, Dalhousie U, Halifax N.S., CANADA B3H-4H8
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