[Simh] Godbout/Viasyn CompuPro Disk 3 emulation in Altair Z80 simulator

[Ian R. Justman]

Hi, all.

I've known about SIMH for many years but only decided recently to give 
it a go.

The main thing I wanted to check was how many people have messed with 
the Godbout/Viasyn CompuPro Disk 3 emulation code?  I read that it had 
only been tested with the DISK3.COM diagnostic package.

On a whim, I decided to build up a SIMH install to see if it would work. 
  After that, I picked up all the various packages out there to get 
started, as well as the CompuPro packages.  Disk 2 packages were out 
there, but no Disk 3.  I decided to build a CBIOS using the Disk 3 code 
rather than the Disk 2.  After a bit of fussing with the linker, I 
managed to get a CP/M boot to not only see the Disk 3 controller and its 
simulated Quantum Q540, it actually WORKED.

Thus far, I'm using the 2.2NZ release of the code.  I'm about to work on 
the 2.2Q BIOS code shortly.  I figured I would report on this in case 
nobody else had even reported, let alone tried it.

Anything I should look out for or be aware of other than what the 
documentation mentions?

Thanks!

--Ian.

-- 
Ian R. Justman
UNIX hacker.  Anime fan.  Any questions?
ianj (at) ian-justman.com