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SEC: Difference between revisions

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[[Category:Inherited from 6502]]
[[Category:Inherited from 6502]]
[[Category:One-byte Instructions]]
[[Category:One-byte Instructions]]
[[Category:Implied Instructions]]

Revision as of 11:08, 14 December 2023

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 2) 38 1 byte 2 cycles
Flags Affected
N V M X D I Z C
. . . . . . . 1

SEC is a 65x instruction that sets the carry flag.

Similar to doing a CLC before an ADC, it is recommended to run SEC (or otherwise make sure the carry flag is set) before running a SBC so that the difference is correct.

See Also

External Links