HT49R50 Holtek Semiconductor Inc, HT49R50 Datasheet - Page 44

• Manufacturer Part Number: HT49R50
• Description: 8-Bit Microcontroller
• Manufacturer: Holtek Semiconductor Inc

RLC [m]
Description
Operation
Affected flag(s)
RLCA [m]
Description
Operation
Affected flag(s)
RR [m]
Description
Operation
Affected flag(s)
Rotate data memory left through carry
The contents of the specified data memory and the carry flag are rotated one
bit left. Bit 7 replaces the carry bit; the original carry flag is rotated into the
bit 0 position.
[m].(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6)
[m].0 ¬ C
C ¬ [m].7
Rotate left through carry and place result in the accumulator
Data in the specified data memory and the carry flag are rotated one bit left.
Bit 7 replaces the carry bit and the original carry flag is rotated into bit 0 po-
sition. The rotated result is stored in the accumulator but the contents of the
data memory remain unchanged.
ACC.(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6)
ACC.0 ¬ C
C ¬ [m].7
Rotate data memory right
The contents of the specified data memory are rotated one bit right with bit 0
rotated to bit 7.
[m].i ¬ [m].(i+1); [m].i:bit i of the data memory (i=0~6)
[m].7 ¬ [m].0
TC2
TC2
TC2
¾
¾
¾
TC1
TC1
TC1
¾
¾
¾
TO
TO
TO
¾
¾
¾
PD
PD
PD
¾
¾
¾
44
OV
OV
OV
¾
¾
¾
¾
¾
¾
Z
Z
Z
AC
AC
AC
¾
¾
¾
¾
C
C
C
Ö
Ö
August 18, 1999
HT49C50