The following warnings occurred:
Warning [2] count(): Parameter must be an array or an object that implements Countable - Line: 795 - File: showthread.php PHP 7.4.33 (FreeBSD)
File Line Function
/showthread.php 795 errorHandler->error




HP Forums / HP Calculators (and very old HP Computers) / General Forum v / [HP35S] Disassembling ROM

Post Reply 
[HP35S] Disassembling ROM
02-21-2015, 12:30 PM (This post was last modified: 02-21-2015 04:03 PM by Tugdual.)
Post: #1
Tugdual Offline
Senior Member
 		Posts: 764
Joined: Dec 2013
[HP35S] Disassembling ROM
Of course it seems difficult to read the ROM (Brouhaha did an amazing work on this in the past) but we now have simulators and I believe the ROM is this file here:
C:\Program Files (x86)\Hewlett-Packard\HP 35s Virtual Calculator\Models\Model.dat

I checked the preliminary SPLB31A datasheet but couldn't figure out where the RESET vector is. We also don't have a clear idea of where the ROM is loaded though $C800 seems to be a good candidate. If anybody has a clue about that...

Did anybody already attempted to disassemble the 35s ROM?

Note: the ROM is actually embedded into the file 35s.sml
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
[HP35S] Disassembling ROM - Tugdual - 02-21-2015 12:30 PM
RE: [HP35S] Disassembling ROM - Tugdual - 02-22-2015, 10:26 AM
RE: [HP35S] Disassembling ROM - Dieter - 02-22-2015, 12:07 PM
RE: [HP35S] Disassembling ROM - Tugdual - 02-24-2015, 04:43 PM
RE: [HP35S] Disassembling ROM - Han - 02-24-2015, 04:56 PM
RE: [HP35S] Disassembling ROM - Tugdual - 02-24-2015, 06:48 PM
RE: [HP35S] Disassembling ROM - Tugdual - 02-22-2015, 02:43 PM
RE: [HP35S] Disassembling ROM - EdS2 - 02-22-2015, 03:30 PM
RE: [HP35S] Disassembling ROM - Tugdual - 02-22-2015, 07:21 PM



User(s) browsing this thread: 2 Guest(s)

Contact Us | The Museum of HP Calculators | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication