SBC (SuBtract with Carry) — 8bitworkshop documentation #152
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SBC (SuBtract with Carry) — 8bitworkshop documentation
A = A - [operand] - (1 - C) or A = A + ([operand] XOR 255) + C SBC performs subtraction on the accumulator register (A), an operand, and the complement of the Carry flag. The result is truncated to...
http://8bitworkshop.com/docs/chips/m6502/insns/SBC.html
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