參數(shù)資料
型號: HT49R50
廠商: Holtek Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 45/59頁
文件大?。?/td> 339K
代理商: HT49R50
RRA [m]
Rotate right-place result in the accumulator
Description
Data in the specified data memory is rotated one bit right with bit 0 rotated
into bit 7, leaving the rotated result in the accumulator. The contents of the
data memory remain unchanged.
Operation
ACC.(i)
ACC.7
[m].(i+1); [m].i:bit i of the data memory (i=0~6)
[m].0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RRC [m]
Rotate data memory right through carry
Description
The contents of the specified data memory and the carry flag are together ro-
tated one bit right. Bit 0 replaces the carry bit; the original carry flag is ro-
tated into the bit 7 position.
Operation
[m].i
[m].7
C
[m].(i+1); [m].i:bit i of the data memory (i=0~6)
C
[m].0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RRCA [m]
Rotate right through carry-place result in the accumulator
Description
Data of the specified data memory and the carry flag are rotated one bit
right. Bit 0 replaces the carry bit and the original carry flag is rotated into
the bit 7 position. The rotated result is stored in the accumulator. The con-
tents of the data memory remain unchanged.
Operation
ACC.i
ACC.7
C
[m].(i+1); [m].i:bit i of the data memory (i=0~6)
C
[m].0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT49R50
45
October 22, 1999
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