68k 8mhz powered sega genesis vs snes used 65816 3.5mhz =16bit 6502 With annoying bank switching
@nocforme
If you have old .com code, publish it in 16bit dos forum
I got later ti calculator, which support z80 asm programs, cable to pc together with pc cross Development tools
Ti calculator has evolved version of z80 with higher clock freqency, bank switching allows for few meg memory with several "apps",most of it flash memory that keep memory without batteries
I never had z80 based computer before and got nowhere on my z80 asm attempts also because need different mindset compared to x86 with simd