XT/370 microcode

[Paul Birkel]

-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Paul Berger via cctalk
Sent: Monday, March 12, 2018 1:41 PM
To: Guy Sotomayor Jr via cctalk
Subject: Re: XT/370 microcode

The IBM Systems Journal article does not go into great detail but says 
that a complex of three separate processors are used, a modified 68000 
that executes "a large subset of 370 instructions", a standard 68000 to 
emulate the remainder odf the instructions and a modified 8087 to 
execute the floating point.  I am not at liberty to post the document.

Paul.
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This one?  Seems to be freely available.

https://www.researchgate.net/publication/224102395_System370_capability_in_a_desktop_computer

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paul