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CMP: Difference between revisions

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Revision as of 03:29, 13 July 2023

Basic Info
Addressing Mode Opcode Length Speed
immediate C9 2 bytes 2 cycles
absolute CD 3 bytes 4 cycles
absolute long CF 4 bytes 5 cycles
direct page C5 2 bytes 3 cycles
direct page indirect D2 2 bytes 5 cycles
direct page indirect long C7 2 bytes 6 cycles
absolute indexed by X DD 3 bytes 4 cycles
absolute long indexed by X DF 4 bytes 5 cycles
absolute indexed by Y D9 3 bytes 4 cycles
direct page indexed by X D5 2 bytes 4 cycles
direct page indexed indirect by X C1 2 bytes 6 cycles
direct page indirect indexed by Y D1 2 bytes 5 cycles
direct page indirect long indexed by Y D7 2 bytes 6 cycles
stack relative C3 2 bytes 4 cycles
stack relative indirect indexed by Y D3 2 bytes 7 cycles
Flags Clobbered
N V M X D I Z C
. . . . .

CMP (Compare) is a 65x instruction that compares the value of the accumulator.

See Also

External Links