Zilog System 8000 Model 31 available in Australia

From: Sean 'Captain Napalm' Conner <spc_at_conman.org>
Date: Sun Nov 24 13:12:00 2002

It was thus said that the Great Tony Duell once stated:
>
> >
> > What is the 8089 used for? Some sort of DMA or IO controller?
>
> It was called an I/O processor. It was a _very_ fancy DMA controller --
> more like a processor designed for moving data around, checking status
> bits, and so on.

  Did you program it by writing to registers (using the 80x86 IN/OUT
instruction) or did it work like the 80x87, which extended the instruction
set?

  -spc (Sounds interesting in any case ... )
Received on Sun Nov 24 2002 - 13:12:00 GMT