ACT insights



#3

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 ;-)


#4

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.


Possibly Related Threads...
Thread Author Replies Views Last Post
  ACT CHIP aj04062 5 1,360 01-27-2013, 02:11 PM
Last Post: Eric Smith
  HP-25C ACT Chip? Mark Henderson 0 537 11-08-2010, 05:33 PM
Last Post: Mark Henderson
  HP 48 Insights Program Disk Gerry Schultz 0 504 02-12-2008, 07:10 PM
Last Post: Gerry Schultz
  Re: Valentine's Day MC: A few modest insights, n! digits - part 3, anyone? John Keith 1 673 02-23-2007, 04:23 PM
Last Post: Gerson W. Barbosa
  Re: Valentine's Day MC: A few modest insights, n! digits - part 3, anyone? Gerson W. Barbosa 1 609 02-22-2007, 07:14 PM
Last Post: Valentin Albillo
  Re: Valentine's Day MC: A few modest insights, n! digits - part 3, anyone? Valentin Albillo 1 665 02-21-2007, 07:20 PM
Last Post: Gerson W. Barbosa
  Chips other than ACT and RAMs going bad? Eric Smith 5 1,146 07-09-2005, 04:00 PM
Last Post: Bernhard
  S&SMC #9, Act II J-F Garnier 11 2,211 05-31-2005, 03:20 PM
Last Post: J-F Garnier
  Dead 67 & Woodstock ACT chips & Prevention John Garza 8 1,381 05-20-2004, 12:44 AM
Last Post: Trent Moseley
  Woodstocks: ACT chip compatibility? (again) Vieira, Luiz C. (Brazil) 3 862 06-16-2003, 12:21 PM
Last Post: Vieira, Luiz C. (Brazil)

Forum Jump: