Model 100 ROM and source code?

[mykrowyre]

I'm trying to troubleshoot a dead model 100. I have a logic analyzer set up, and I know someone disassembled the rom image, but after much googling I just can't seem to find it.

I'd also like to compare it with the original rom to make sure the rom itself isn't bad.

Anyone happen to know where I can find it?

Thanks

 

[Twospruces]

what are you looking for ? the base M100 rom image? there were more than 1, but possibly you have a bog standard USA M100, so you can use the rom in Virtual T:

Virtual T

Download Virtual T for free. Virtual T is a TRS-80 Model 100/102/200 emulator that runs on Windows, Linux, and Macintosh. The goal of Virtual T is to provide 100% hardware emulation so any existing programs will run.

sourceforge.net

There is a rom in there for you. VirtualT also includes a nice disassembly of the ROM.

 

[mykrowyre]

Thanks, I downloaded it along with source code and did not find any annotated disassembly of the rom

I'm hoping to find what is shown here at 21:38:

Thanks

 

[Twospruces]

If you install and run virtualT you will find the disassembly.

 

[Twospruces]

I dont think there is one complete ultimate disassembly.
The one in virtualT is a good reference. I have my own that I add to over time. I have seen others.
I cant really see what Jeff is using.
You could always contact Jeff.

 

[Twospruces]

I attach the virtualT disassembly for you. A good starting point.

 

[mykrowyre]

Thank you! I