15 May
2025
15 May
'25
4 a.m.
On Wed, 14 May 2025, mark.s.waterbury(a)gmail.com wrote:
Mark, for both the S/370 and S/3 "emulation"
we found the opcode jump
tables for the 5100/5110 (I don't think I posted those anywhere, but
mentioned in the VCF 5100 talk). While each opcode 00-FF has an entry, as
you say many of them jump to effectively a halt or invalid instruction
placeholder (or in other words, only about 80% of the opcodes actually
being supported).
I had disassembled and partially documented the 5110 S/3 (basicros.asm)
and S/360 (aplros.asm) emulators many years ago. The listings are publicly
available on our servers since 2008.
Christian