Inline SR
[ScratchNES.git] / src / CPU / instructions / PHP
1 IMPLIED
2 set SR to (128*flagN) + (64*flagV) + (32) + (16*flagB) + (8*flagD) + (4*flagI) + (2*flagZ) + (1*flagC)
3 mapper write (256 + S) SR
4 set S to (S - 1) mod 256
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