NEC 78K/0S Series User Manual page 84

ROR
[Instruction format]
[Operation]
[Operand]
Mnemonic
ROR A, 1
[Flag]
Z AC
[Description]
•
The destination operand (dst) contents specified with the 1st operand are rotated to the right just once.
•
The LSB (bit 0) contents are simultaneously rotated to MSB (bit 7) and transferred to the CY flag.
[Description example]
ROR A, 1; The A register contents are rotated one bit to the right.
84
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
ROR dst, cnt
← dst ← dst
(CY, dst , dst
7 0 m–1
Operand (dst, cnt)
CY
×
CY 7
User's Manual U11047EJ3V0UM00
Byte Data Rotation to the Right
) × one time
m
Rotate Right
0