Probably the Bell Labs one. I did an optimizer on the Pcode which caught
jumps to jumps, then had separate 8080 and L66 code generators into GMAP
on the GE and the CP/M assembler or the Intel (ISIS) assembler for 8080.
There was also an 8085 code generator using the "ten undocumented
instructions" from the Dr Dobbs article. GE actually had a contract with
Intel to provide CPUs with those instructions, and we used them in the
Terminet(r) printers.
Those were the days ;-)
--
Bill Davidsen <davidsen@tmr.com>
"Woe unto the statesman who makes war without a reason that will still
be valid when the war is over..." Otto von Bismark
--