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The CPU was called MBB (Microprogrammable Building Block). Here's the C/30 Programmer's Reference for the "Native Mode Firmware System". That was the software
by larsbrinkhoff 5y ago
The CPU was called MBB (Microprogrammable Building Block).
Here's the C/30 Programmer's Reference for the "Native Mode Firmware System". That was the software that ran in the native 20-bit mode rather than emulating the 16-bit Honeywell mini.
https://walden-family.com/impcode/c30-nmfs-programmers-refererence-bbn-tr-3000.pdf https://walden-family.com/impcode/c30-nmfs-programmers-refer...