Date   : Thu, 19 Mar 1987 19:15:04 GMT
From   : mnetor!utgpu!edwest@seismo.css.gov (Dr. Edmund West)
Subject: Teletek hard disk controller software

  I would like to hear from anyone who might have access to the source
code for the set of programs used with the Teletek hard disk
controller (HDC).
  After accepting my purchase order Teletek discovered that several of
that product's components were missing. If I can find them somewhere,
I am sure I will be able to arrange with Teletek to get a copy.
  About a year ago I enhanced my Teletek Systemaster-I CP/M system by
adding a hard disk and the Teletek HDC. The purchase included COM
files for HDLOAD (loads driver into BIOS), HDPATCH (patches parameter
table in HDLOAD), and HDU (utility to park heads, verify disk, etc.).
These were identified as being version B.10.
  In December I ordered the source code for these programs. The first
diskette they sent me had a garbled directory. The second contained
(1) version B.40101 of HDLOAD.ASM [an updated version, good enough],
(2) version B.0 of HDPATCH.ASM [which predates my original programs
and is incompatible with them], and (3) HDU.ASM [but with none of its
subroutines]. Finally, Teletek admitted they can't find the source
files for the missing modules.
  Incidentally, I got started on all this when I tried to install
SUPRBDOS (the public domain replacement for DRI's BDOS) and discovered
that the HDC driver trashes the IX register SUPRBDOS is using. I can
easily modify the new HDLOAD to save and restore the IX register. And
I might be able to install the parameter table manually. However, the
new HDLOAD and the original HDU appear to be incompatible.
  I would appreciate whatever help anyone can give me.