1 Jun
2014
1 Jun
'14
2:20 p.m.
On 06/01/2014 10:01 AM, Mouse wrote:
The 80286 and 80186 were actually used in IBM PCs of
various
generations, were they not? If so, the basic instruction set would be
a PC-compatible aspect, would it not?
That's a straw man. If you're going to run MS-DOS, you're going to have
to embody the x86 instruction set somehow, either by hardware
implementation or by emulation.
I'm not aware that IBM ever used an 80186 in a PC. The integrated
peripherals are utterly different from the XT-AT standard. Tandy did
try to use one in the 2000, but the incompatibilities were considerable.
Curiously, the USR Courier modems used an 80c188, as did other peripherals.
--Chuck