Doom for SymbOS - first test on real 4MHz 8bit hardware

This is a NYYRIKKI port of zDoom for SymbOS, which was written for the TI83/84 calculators about 15 years ago. During the last 2 days I was adapting and optimizing it a little bit, and now I made the first test on my real CPC. Very cool Z80 project, all my respects to the TI “zDoom“ guys, and to NYYRIKKI for this crazy port! zDoom source codes: SymbOS 8bit Multitasking based GUI Operating system