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For 6502 series of processors, including hardware and assembly language questions. Use with [hardware] for the hardware interface in particular.

12 votes
3 answers
1k views

How does 6502 machine code process $ (address) VS #$ (value)?

How does the 6502's machine code process $ vs #$, as in it's assembly language? … (finding info on 6502 assembly is easy, on machine code processing in general not so much, so I don't know if there's a standard way or if this is a stupid question or not!) …
Accumulator's user avatar
15 votes
2 answers
2k views

How could high level functions with return values map to 6502 assembly? (if at all possible)

byte func(byte a, byte b, byte c) { d = (a + b) * c; return d; } How could that be done on 6502, or is it impossible? … If 6502 programmers would need to do something like the above, using a subroutine, how would they do it? …
Accumulator's user avatar