Samsung S3F80JB - Manual (Page 206)

INSTRUCTION SET S3F80JB
6-78
SCF
— Set Carry Flag
SCF
Operation: C
← 1
The carry flag (C) is set to logic one, regardless of its previous value.
Flags: C: Set to "1".
No other flags are affected.
Format:
Bytes Cycles Opcode
(Hex)
opc 1 4 DF
Example: The statement
SCF
sets the carry flag to logic one.