Bug or oversight in Digital Research 8080 assemblers with invalid MOV M
From retrogear@21:1/5 to All on Sat Oct 21 06:23:34 2023
This may have been documented before but with assembling MOV M,M with assemblers ASM or MAC, debuggers DDT or SID produces the 76h HLT opcode with no error reported. I just discovered this today for myself. Has anyone else heard of this ? Apparently MOV
M,M is not valid even though moving other registers upon themselves is valid ?