Programming tools for emulator of eight bit computer ORAO
...It was first and for me the best home computer at that time. My whole knowledge of computer programming begins with that computer. Recently for some unknown reason I have become interested in old eight bit computers again. After short search on the Internet I have found emulator of my favorite computer. It literally emulates every peace of hardware installed in real computer.
https://en.wikipedia.org/wiki/Orao_%28computer%29
Unfortunately programming on emulator is also not so easy as it was on real computer, considering today modern tools. ...
Emulator of the ancient 8 bit microprocessor SC/MP 2
...You may slow down the CPU operations, displaying the CPUs status register as LEDs, to watch the CPU working with its registers.
The emulator also contains a VDU (video display unit) output / ASCII input simulation. There are some demos in /etc. And have a look to the NIBL / TINY BASIC interpreter in the TINYBASIC folder, most of the code is over 40 years old.
Have fun,
Theo Heinrichs