Ccf Complement Carry Flag - Samsung S3C80M4/F80M4 User Manual

S3C80M4/F80M4
CCF
— Complement Carry Flag
CCF
C ← NOT C
Operation:
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:
opc
Example: Given: The carry flag = "0":
CCF
If the carry flag = "0", the CCF instruction complements it in the FLAGS register (0D5H),
changing its value from logic zero to logic one.
Bytes Cycles Opcode
(Hex)
1 4
INSTRUCTION SET
EF
6-27