NEC 78K/0 Series User Manual page 76

ROR
[Instruction format]
[Operation]
[Operand]
Mnemonic
ROR A, 1
[Flag]
Z AC
[Description]
• The destination operand (dst) contents specified by 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.
76
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
ROR dst, cnt
← dst
(CY, dst , dst
7 0 m–1
Operand(dst,cnt)
CY
×
CY 7
User's Manual U12326EJ4V0UM
Byte Data Rotation to the Right
← dst ) × one time
m
Rotate Right
0