HP Forum Archive 21

[ Return to Index | Top of Index ]

ACT insights Message #1 Posted by davorin on 13 Sept 2013, 11:17 a.m. Evenin' (o; Are besides the documentation in the service manuals more information available about the insights of the ACT and its timing to do his work? Are the ROM contents somewhere available of the HP-21/22/67/97 available? Reason for asking: Doing things in FPGA ;-)

Re: ACT insights Message #2 Posted by davorin on 14 Sept 2013, 3:51 a.m., in response to message #1 by davorin So if I understand the few documentations available for ACT, it only executes the microcode stored in the several ROMs it is connected to? So it is just a simple BCD optimized CPU.

[ Return to Index | Top of Index ]

Go back to the main exhibit hall