Commodore 64 Handbook page 77

ROL Ro t a t e le-ft 1 bit.
ROR R o t a t e right 1 bit.
RTI Return -from interrupt.
RTS R eturn -from subroutine.
SBC Subtract memory with borrow -from accumulator.
SEC Set c a rry -flag.
SED Set decimal mode.
SEI Set interrupt disable.
STA
S t o r e accumulator.
STX St o r e X register.
STY St o r e Y register.
TAX Transfer accumulat or to X r e g i s t e r .
TAY T ransfer accumulator to Y r e g i s t e r .
TSX
Transfer stack pointer to X register
TXA Transfer X register to a c c u m u l a t o r .
TXS Transfer X register to stack pointer
TYA Transfer Y register to a c c u m u l a t o r .
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