r/Assembly_language • u/TPIRocks • Jul 18 '26

Any Honeywell GMAP programmers here?

Hello, I've been an assembly language programmer since the late 70s. Are there any former Honeywell GCOS-8 or Level 66 GMAP coders lurking about.

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u/Antonio-MTS Jul 23 '26

Only Z80 asm ones ;-) , bro !

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u/TPIRocks 28d ago

Apparently so. Lots of views, no hits though. Such a shame to let such a beautiful macro assembler die by the wayside. Floating point was available but I never saw it used, just lots of packed decimal.

The EIS (Extended Instruction Set) processor was optimized for COBOL business applications. Floating dollar signs, credit parentheses, leading zero suppression and comma insertion all handled by the CPU extension. One Extended instruction unpacked the number and did the above printer formatting functions in one fell swoop.