HP-27s Emulator Question



#2

Hi,

I am attempting to dump the rom from either of my two hp27s calculators for use in EMU42 using Christoph Giesselink's dump assembler program contained in the pioneer text file within the CPROMUPL archive. However, both calculators freeze and I have to exit the memory scanner.

I have succeeded in accessing the resident memory scanner, navigating to address #52000, entering the assembly program, returning to address #52000, and pressing the period (.) key to execute the program. I was careful to find the rom revision of each calculator (one is A, the other is B) and make the necessary modification of one line of code for each rom version. I have double-checked my typing for each of the four times I have tried but may still be making a silly mistake.

I was wondering if anyone has succeeded in dumping the rom for an hp27s using this program. If so, it will encourage me to keep trying!

Thanks,

Carey


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-27S speed compared to HP-42S Tommi 3 641 06-05-2013, 05:55 PM
Last Post: Christoph Giesselink
  27S display - a show stopper? Thomas Radtke 13 1,222 10-11-2011, 07:15 PM
Last Post: M. Joury
  HP-27S "Technical Manager" vs. "Scientific" Jim Yohe 9 861 03-26-2011, 02:38 AM
Last Post: Walter B
  HP 27s - How to set # decimal places displayed? M Tulloch 4 574 12-21-2010, 07:23 PM
Last Post: bill platt
  HP 27S - Adjust screen contrast? M Tulloch 2 402 07-13-2010, 02:09 PM
Last Post: M Tulloch
  Kitchen timer on 17B/17BII/17BII+/19B/19BII/27S y.miyata 1 349 03-04-2010, 12:18 PM
Last Post: Martin Pinckney
  HP-27S Successful LCD transplantation Lyuka 0 257 01-27-2010, 11:58 AM
Last Post: Lyuka
  Pioneer series internal photo (17BII, 27S, 42S) Lyuka 4 657 11-16-2009, 06:26 PM
Last Post: geoff quickfall
  Which came first? 19B or 27S? Mark Edmonds 2 423 06-25-2009, 09:41 AM
Last Post: Mark Edmonds
  HP 27S on Christophe Giesselink's Emulator bill platt 2 409 04-25-2009, 11:27 PM
Last Post: bill platt

Forum Jump: