#Vcfed sdltrs emulator full#
#Vcfed sdltrs emulator Pc#

And if it is appreciated by more people I can do But one thing is, as you mentioned, which keyboard to use. I've been talking to Oscar about making a 3D scan of my terminal and use thatįor replica purposes. I'm afraid that there are not many people having experience with this problem.Ī well built and documented emulator might be very useful on a VT05 replica. Emulator Rom Folder trs-80 type Extension BIOS Controller Config sdltrs: trs-80: trs-80 model I.dsk: level2.

TTandy RSRadio Shack 80Z-80 microprocessor. The TRS-80 was a home computer originally released by the Tandy Corporation in 1977. When I run OS/8 atĢ400 baud I get skipped characters at the beginning of a new line. Emulator: sdltrs ROMS BIOS Controls: Advanced Configuration TRS-80. Text shows up nicelyĪt 2400 baud, but linefeed etc needs more time.

#Vcfed sdltrs emulator full#

The keyboard chip is a SMC KR2376-17, there is a nice datasheet about it.īut as I mentioned in the other topic, I could do some tests if you want.Įven the VT05B seems not able to run at the full 2400 baud rate.Ĭontrol characters seem to need a bit more time. The text colour is white and certainly not as blue as it might look on some pictures. I could make a picture with a white A4 paper next to it as reference. It is the greyish plastic in front of it which gives it a bit more contrast. The colour is P4, it's also in the model number of the CRT. I've been working on improving the reproduction of the color of P4 phosphor, which had a bluish tint. Questions like 'What is sent if you hold down CTRL while pressing RUB OUT?' I think there's a ROM on the keyboard PCB that holds the answers to these questions but I don't have a dump of it. I considered simulating real VT05 key behavior, but decided to defer it until later because it was raising a lot of questions about the behavior of certain key combinations that I didn't have the answer for. But the end result is the keys moving on-screen wouldn't match the keys you were actually pressing on your keyboard. The VT05 keyboard layout does match the Teletype Model 33 fairly well, however, so it would be an excellent terminal for someone who was used to the TTY33 layout already.

#Vcfed sdltrs emulator Pc#

Another example is which is its own key on the VT05 but is typed as shift-2 on a PC keyboard. For example, '+' is shift- on a VT05, rather than the more common shift-= used with typewriters, the VT52, and now the PC as well. The keyboard emulation as currently implemented doesn't actually match the keys that would be pressed on a real VT05.