For cycles, p=1 if page is crossed, t=1 if branch is taken. Illegal opcodes are in bold.
=== Letter A === {| class="wikitable" style="white! Mnemonic !! Operation !! Implied !! Immediate !! Absolute !! X-Indexed Absolute !! Y-space: nowrap;"Indexed Absolute !! Zero Page !! X-Indexed Zero Page !! Y-Indexed Zero Page !! X-Indexed Zero Page Indirect !! Zero Page Indirect Y-Indexed !! N !! V !! - !! B !! D !! I !! Z !! C
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! Instruction !! Opcode !! Cycles !! | ANC || A ∧ M → A, N !! V !! B !! D !! I !! → C || || 0B, 2B || || || || || || || || || N || - || - || - || - || - || Z !! || C !! Operation !! Description
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| ADC #$nn ARR || $69 (A ∧ M) / 2 → A || 2 ||rowspan=86B | + ||rowspan=8| + ||rowspan=8| - ||rowspan=8| - ||rowspan=8| - ||rowspan=8| + ||rowspan=8N | + |V |rowspan=8| A + M + C → A, C - ||rowspan=8- | Add Memory to Accumulator with Carry| - || - || Z || C
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| ADC $nnnn ASR || $6D (A ∧ M) / 2 → A || 4|| 4B || || || || || || || || || 0 || - || - || - || - || - || Z || C
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| ADC $nnnnDCP || M - 1 → M,X A - M || || || CF || DF || DB || C7 || D7 || || C3 || D3 || N || - || - || - || - || - || $7D Z || 4+pC
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| ADC $nnnnISC || M + 1 → M,Y A - M → A || $79 || 4+p|| EF || FF || FB || E7 || F7 || || E3 || F3 || N || V || - || - || - || - || Z || C
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| ADC $nn JAM || $65 Stop execution || 302, 12, 22, 32, 42, 52, 62, 72, 92, B2, D2, F2 || || || || || || || || || || - || - || - || - || - || - || - || -
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| ADC $nnLAS || M ∧ S → A,X , S || || || || || BB || || || || || || N || - || - || - || - || - || $75 Z || 4-
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| ADC ($nnLAX || M → A,X) || $61 || 6AB || AF || || BF || A7 || || B7 || A3 || B3 || N || - || - || - || - || - || Z || -
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| ADC ($nn)NOP || No operation || 1A,Y 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 || || || || - || - || - || - || - || - || $71 - || 5+p-
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|rowspan=2RLA | ANC #$nn |C ← /M7...M0/ ← C, A ∧ M → A | '''$0B''' ||rowspan=2| 2 ||rowspan=22F | + |3F |rowspan=2| - 3B ||rowspan=227 | - |37 |rowspan=2| - ||rowspan=223 || 33 || N || - ||rowspan=2- | + |- |rowspan=2| + - ||rowspan=2- | A ∧ M → A, N → C |Z |rowspan=2| "AND" Memory with Accumulator then Move Negative Flag to Carry FlagC
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| '''$2B'''RRA || C → /M7...M0/ → C, A + M + C → A || || || 6F || 7F || 7B || 67 || 77 || || 63 || 73 || N || V || - || - || - || - || Z || C
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| AND #$nn SAX || $29 A ∧ X → M || 2 ||rowspan=8| + |8F |rowspan=8| + ||rowspan=8| - |87 |rowspan=8| - ||rowspan=897 || 83 || || - ||rowspan=8- | + |- |rowspan=8| - ||rowspan=8- | A ∧ M → A |- |rowspan=8| "AND" Memory with Accumulator- || -
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| AND $nnnn SBC || $2D A - M - ~C → A || 4|| || EB || || || || || || || || N || V || - || - || - || - || Z || C
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| AND $nnnn,SBX || (A ∧ X ) - M → X || || || CB || || || || || || || || N || - || - || - || - || - || $3D Z || 4+pC
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| AND $nnnn,Y SHA || $39 A ∧ X ∧ V → M || 4+p|| || || || || 9F || || || 93 || || - || - || - || - || - || - || - || -
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| AND $nn SHS || $25 A ∧ X → S, S ∧ (H + 1) → M || 3|| || || || || 9B || || || || || - || - || - || - || - || - || - || -
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| AND $nn,SHX || X ∧ (H + 1) → M || || || || || || 9E || || || || || - || - || - || - || - || - || $35 - || 4-
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| AND SHY || Y ∧ ($nn,XH + 1) → M || || || || || || 9C || || || || || - || - || - || - || - || - || $21 - || 6-
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| AND ($nn)SLO || M * 2 → M,Y A ∨ M → A || || || 0F || 1F || 1B || 07 || 17 || || 03 || 13 || N || - || - || - || - || - || $31 Z || 5+pC
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| ARR #$nn SRE || '''$6B''' M / 2 → M, A ⊻ M → A || 2 || + || + 4F || 5F || 5B || 47 || 57 || || 43 || 53 || N || - || - || - || + - || + - || (A ∧ M) / 2 → A Z || "AND" Accumulator then Rotate RightC
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| ASL A XAA || $0A (A ∨ V) ∧ X ∧ M → A || 2 ||rowspan=5| + |8B |rowspan=5| - ||rowspan=5| - ||rowspan=5| - ||rowspan=5| - ||rowspan=5| + ||rowspan=5N | + ||rowspan=5| C ← /M7...M0/ ← 0 ||rowspan=5| Arithmetic Shift Left|-| ASL $nnnn || $0E || 6|-| ASL $nnnn,X || $1E || 7|-| ASL $nn || $06 || 5|-| ASL $nn,X || $16 || 6|-| ASR #$nn || '''$4B''' || 2 || 0 Z || - || - || - || - || + || + || (A ∧ M) / 2 → A || "AND" then Logical Shift Right
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