TI-59 Emulator

[prino]

Way back in 2003 this was posted:

Quote:Message #1 Posted by HrastProgrammer on 20 Nov 2003, 7:48 a.m.

I know, I know, this is an HP forum but, regarding the fact that there haven't been very much use of some TI forums so far, I am posting this question to a forum which is full of experienced users with great knowledge.

So, I decided to (try to) make an TI-59 emulator, either for PC or HP-48/49. At first, it seems like an impossible task due to the lack of information but, during the time, things were getting a little better. I found some info, either from the Web and some other sources, including the patent #4153937 about TI-59. This patent even includes the whole ROM dump of TMC0582/0583 and TMC0571 ROM chips. So, what is the problem? I downloaded this patent from the US Patent Office in TIFF format. I decided to retype the ROM contents into the text file for further manipulation but I am unable to do this correctly because image quality is not very good and some digits aren't recognizeable. So, it is pretty useless :-(

I am wondering if someone has a better copy or knows some other way for obtaining the ROM dump? I have a real TI-59 but, AFAIK, it isn't possible to dump the ROM contents without expensive equipment.

It can be done, and was recently done using an Arduino board.

The resulting emulator emulates the TI-59/58/58C(L) and the SR-50, SR-50A, SR-51A, SR-51II, SR-52(L) and SR-56 down to microcode level, and even lets you SST through the microcode, while displaying all internal registers. It also emulates the PC-100x printer and the emulation is so perfect that even Graphics Mode works.