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Set Carry Flag
Opcode: SEC
Operation: 1 → C
Status Register: Status-List.png

SEC (Set Carry Flag) sets the Carry Flag in the Processor Status Register by setting the 0th bit 1. To clear the carry flag, use CLC.


This pseudo C code shows how the SEC opcode functions when it is executed.

SET_CARRY((1));               // Set the 0th bit of the processor status to 1.

Addressing Modes

Addressing Mode Assembly Language Form Opcode # Bytes # Cycles
Implied SEC 38 1 2