> > And I'm very close to having a 360/65 in VHDL. > > Was the microcode derived from the engineering drawings?
Yes, from hand-corrected OCR scans. To be precise, the ALDs and microcode I'm using are not for a plain 2065, but for a 7201-02, the variant that was used in the 9020 complex. I'm making modifications that I hope make it work like a 2065 again. > From memory, the 65 is the bigger brother to the 50 with a wider memory bus. And a bigger ALU, so the microcode for floating point operations is very different I believe. Camiel
