foft | 5 years ago | on: Exploring FPGA Graphics (2020)
I bought several books but this is the found I found most accessible:
"RTL Hardware Design Using VHDL" by Pong Chu
https://ieeexplore.ieee.org/book/5237648
foft | 5 years ago | on: Exploring FPGA Graphics (2020)
foft | 5 years ago | on: SQLite briefing for Linux kernel hackers (2019)
foft | 10 years ago | on: Let Chris Crawford teach you to program Atari's 8-bit computers [video]
Best windows emulator: Altirra
Best cross platform emulators: Atari800 and Atari++
Or if you have an FPGA board (MIST,MCC216 etc) then you can try my core available at http://www.scrameta.net
Or you could buy a real 800XL!