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DEC

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Revision as of 01:18, 10 December 2023 by Xetheria (talk | contribs) (ignores decimal mode flag)
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Basic Info
Addressing Mode Opcode Length Speed
Accumulator 3A 1 byte 2 cycles
Absolute CE 3 bytes 6 cycles*
Direct Page C6 2 bytes 5 cycles*
absolute indexed X DE 3 bytes 7 cycles*
direct page indexed X D6 2 bytes 6 cycles*
Flags Affected
N V M X D I Z C
. . . . . .

DEC (Decrement) is a 65x instruction that decrements the value in the location specified by the operand.

DEC ignores the decimal mode flag.

Cycle Penalties

See Also

External Links