Samsung S3F84B8 - CCF - Complement Carry Flag

S3F84B8_UM_REV 1.00 6 INSTRUCTION SET
6-26
6.3.14 CCF — COMPLEMENT CARRY FLAG
CCF
Opera
tion: C  NOT C
The carry flag (C) is complemented. If C = “1”, the value of the carry flag is changed to logic zero;
if C = “0”, the value of the carry flag is changed to logic one.
Flags: C: Complemented.
No other flags are affected.
Format:
Bytes Cycles Opcode
(Hex)
opc 1 4 EF
Example: Given the carry flag is equal to “0”:
CCF
If the carry flag is equal to “0”, the CCF instruction complements it in the FLAGS register (0D5H),
changing its value from logic zero to logic one.