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6502

No change in size, 22 September
/* NMOS 6502 Instruction Set */
| PLA || 68 (4) || || || || || || || || || || || || || N || - || - || - || - || - || Z || - || (S)↑ → A || Pull Accumulator From Stack
|-
| PLP || 28 (4) || || || || || || || || || || || || || N || V || - || B - || D || I || Z || C || (S)↑ → P || Pull Processor Status From Stack
|-
| ROL || || 2A (2) || || 2E (6) || 3E (7) || || || 26 (5) || 36 (6) || || || || || N || - || - || - || - || - || Z || C || CF ← /M<sub>7</sub>...M<sub>0</sub>/ ← CF || Rotate One Bit Left (Memory or Accumulator)
| ROR || || 6A (2) || || 6E (6) || 7E (7) || || || 66 (5) || 76 (6) || || || || || N || - || - || - || - || - || Z || C || CF → /M<sub>7</sub>...M<sub>0</sub>/ → CF || Rotate One Bit Right (Memory or Accumulator)
|-
| RTI || 40 (6) || || || || || || || || || || || || || N || V || - || B - || D || I || Z || C || (S)↑ → P, (S)↑ → PCL, (S)↑ → PCH || Return From Interrupt
|-
| RTS || 60 (6) || || || || || || || || || || || || || - || - || - || - || - || - || - || - || (S)↑ → PCL, (S)↑ → PCH, PC + 1 → PC || Return From Subroutine
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