CPX

created by yerricde
(thing) by yerricde (10.1 mon) (print)   (I like it!) Fri Mar 30 2001 at 1:24:35
A 6502 instruction that does a subtraction X - N, throwing away the result but updating the flags. Often used for comparisons.
  • Function: X - N => bit bucket
  • Updates flags: S . . . . . Z C
  • Opcode numbers: 
    imm   $E0
dp    $E4
abs   $EC

Similar: CMP | CPY
See also: 6502 instructions | 6502 addressing modes

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