Re: [M100] FPGA Model 100

2021-05-22 Thread ExPLIT | Pawel Radomychelski
The simplest implementation of 80c85 is MiniMax 8085 by Sergey Kiselev. It has a very small amount of chips and is easy to build. It has also extension port for connecting keyboard and display. But for ROM exist only TinyBasic and mon85

Re: [M100] FPGA Model 100

2021-05-22 Thread Britt Dodd
I really wish I could figure out FPGAs! I’d love to run this and make some hybrid M100/internet thing. Have an app that would be like the TRS-80 Prodigy or something. PCB layouts and FPGAs are way out of my wheelhouse at the moment. Awesome work! Sent from my iPhone > On May 22, 2021, at

Re: [M100] FPGA Model 100

2021-05-22 Thread Rob Messer
Ken, That is awesome! I am admittedly a mechanical engineer and I took one semester of computer engineering and VHDL programming and changed majors (I was more of a beer drinker than D guy). In any event I will rope in some colleagues and badger them with questions. Another question is whether

[M100] Tandy 102 Keyboard Flat Ribbon Cable

2021-05-22 Thread Chris Fezzler
In need of a flat ribbon cable for the Tandy 102. Any recommendations for source?

Re: [M100] FPGA Model 100

2021-05-22 Thread Ken Pettit
Hey Rob, Actually, the time did finally advance. I forgot that this is a simulation, so it takes quite a bit of real-time for even one second to pass in the simulated design. It is up to 5 seconds now in my simulation after about 5-6 minutes of real time. Ken On 5/22/21 12:44 PM, Ken

Re: [M100] FPGA Model 100

2021-05-22 Thread Ken Pettit
Hey Rob, I have an RTL design I worked on YEARS ago where I was trying to get the Model 100 in an FPGA along with some extensions. It was back when there was a lot of talk on the list about a Model 401. For those who weren't around then or don't recall, the Model 401 was something that was

[M100] FPGA Model 100

2021-05-22 Thread Rob Messer
I have followed this email list for a years and I have never asked a question...but here goes! I am sitting here with my model 100 and I had an idea to 3D print a replica case and get my hands on an LCD and mechanical keyboard and try to faithfully reproduce the Model 100 with simple additions. I

Re: [M100] TPDD Emulator in VirtualT - 20k save limit?

2021-05-22 Thread Gary Weber
Yes, that's the same as my experience. I've always been able to save a tokenized .BA file from the VirtualT 'File' menu, as I mentioned earlier. The fact that I can't load one, though, has always just meant I've generally used TS-DOS for all operations. A large NEC flavored .BA file will be in