| SAX (AXS, AAX) || || || 8F (4) || || || 87 (3) || || 97 (4) || 83 (6) || || - || - || - || - || - || - || - || A AND X -> M || Stores the bitwise AND of A and X
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| SBC (USBC) || || EB (2) || || || || || || || || || N || V || - || - || - || Z || C || A - M - ~CF → A || Subtract Memory from Accumulator with Borrow|-| SBX (AXS, SAX) || || CB (2) || || || || || || || || || N || - || - || - || - || Z || C || (A ∧ AND X) - M → oper -> X || Subtract Memory from Accumulator "AND" Index Register XCMP and DEX at once, sets flags like CMP
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| SHA (AHX, AXA) || || || || || style="color: #CC0000;"|'''9F''' (5) || || || || || style="color: #CC0000;"|'''93''' (6) || - || - || - || - || - || - || - || A ∧ X ∧ V → M || Store Accumulator "AND" Index Register X "AND" Value
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| SRE (LSE) || || || 4F (6) || 5F (7) || 5B (7) || 47 (5) || 57 (6) || || 43 (8) || 53 (8) || N || - || - || - || - || Z || C || M / 2 → M, A ⊻ M → A || Logical Shift Right then "Exclusive OR" Memory with Accumulator
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| USBC (SBC) || || EB (2) || || || || || || || || || N || V || - || - || - || Z || C || A - M - ~C -> A || SBC oper + NOP
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