Samsung S3F80JB - Manual (Page 197)

S3F80JB INSTRUCTION SET
6-69
RCF
— Reset Carry Flag
RCF RCF
Operation: C
← 0
The carry flag is cleared to logic zero, regardless of its previous value.
Flags: C: Cleared to "0".
No other flags are affected.
Format:
Bytes Cycles Opcode
(Hex)
opc 1 4 CF
Example: Given: C = "1" or "0":
The instruction RCF clears the carry flag (C) to logic zero.