參數(shù)資料
型號: μPD789418
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 85/125頁
文件大?。?/td> 366K
代理商: ΜPD789418
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
68
ROR
Rotate Right
Byte Data Rotation to the Right
[Instruction format]
ROR dst,cnt
[Operation]
(CY,dst
7
dst
0
,dst
m-1
dst
m
)
×
one time
[Operand]
Mnemonic
Operand (dst,cnt)
ROR
A,1
[Flag]
Z
AC
CY
×
[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.
CY
0
7
[Description example]
ROR A,1; The A register contents are rotated one bit to the right.
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