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MOS 6502

2 bytes added, 11:38, 3 September 2024
/* Illegal instructions */
| ISC || || || EF || FF || FB || E7 || F7 || || E3 || F3 || N || V || - || - || - || - || Z || C || M + 1 → M, A - M → A || Increment Memory By One then SBC then Subtract Memory from Accumulator with Borrow
|-
| JAM || 02, 12, 22, 32, 42, 52,  62, 72, 92,  B2, D2, F2 || || || || || || || || || || - || - || - || - || - || - || - || - || Stop execution || Halt the CPU
|-
| LAS || || || || || BB || || || || || || N || - || - || - || - || - || Z || - || M ∧ S → A, X, S || "AND" Memory with Stack Pointer
| LAX || || AB || AF || || BF || A7 || || B7 || A3 || B3 || N || - || - || - || - || - || Z || - || M → A, X || Load Accumulator and Index Register X From Memory
|-
| NOP || 1A, 3A, 5A, 7A, DA, FA || 80, 82, 89, C2, E2 || 0C || 1C, 3C, 5C, 7C, DC, FC || || 04, 44, 64 || 14, 34, 54, 74, D4, F4 || || || || - || - || - || - || - || - || - || - || No operation || No Operation
|-
| RLA || || || 2F || 3F || 3B || 27 || 37 || || 23 || 33 || N || - || - || - || - || - || Z || C || CF ← /M7...M0/ ← CF, A ∧ M → A || Rotate Left then "AND" with Accumulator
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