Carry Flag

The Carry Flag (C) exists on the 65c816 as bit 0 of the status register.

It can be set with SEC and cleared with CLC. Or, SEP and REP can be used.

The following other 10 instructions have side effects that directly affect the carry flag:

• ADC
• ASL
• CMP
• CPX
• CPY
• LSR
• ROL
• ROR
• SBC
• XCE

The following two instructions indirectly affect the carry flag by loading the status register:

• PLP
• RTI

The carry flag influences whether BCS and BCC branch or not.

See Also

• CY, the Super FX's carry flag

Reference

• Labiak, William. Page 108. https://archive.org/details/Programming_the_65816/page/n118