> But it would help if anyone knows this. Does anyone have a 6502
> reference as to exactly what JSR does on a cycle-by-cycle basis?
I think is like this:
JSR
# address R/W description
--- ------- --- -------------------------------------------------
1 PC R fetch opcode, increment PC
2 PC R fetch low address byte, increment PC
3 $0100,S R internal operation (predecrement S?)
4 $0100,S W push PCH on stack, decrement S
5 $0100,S W push PCL on stack, decrement S
6 PC R copy low address byte to PCL, fetch high address
byte to PCH
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