ht827a0 Holtek Semiconductor Inc., ht827a0 Datasheet - Page 41

• Manufacturer Part Number: ht827a0
• Description: 8-bit Microcontroller With Voice Rom
• Manufacturer: Holtek Semiconductor Inc.

RR [m]
Description
Operation
Affected flag(s)
RRA [m]
Description
Operation
Affected flag(s)
RRC [m]
Description
Operation
Affected flag(s)
Rotate data memory to the right
The contents of the specified data memory are rotated 1-bit to the 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
Rotate to the right - then place result in the accumulator
Data in the specified data memory are rotated 1-bit to the right with bit 0 ro-
tated to bit 7, leaving the rotation result in the accumulator. The contents of
the data memory remain unchanged.
ACC.(i) ¬ [m].(i+1); [m].i:bit i of the data memory (i=0~6)
ACC.7 ¬ [m].0
Rotate data memory to the right through carry
The contents of the specified data memory and carry flag are rotated 1-bit to
the right. Bit 0 replaces the carry bit; the original carry flag is rotated to the
bit 7 position.
[m].i ¬ [m].(i+1); [m].i:bit i of the data memory (i=0~6)
[m].7 ¬ C
C ¬ [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
41
OV
OV
OV
¾
¾
¾
¾
¾
¾
Z
Z
Z
AC
AC
AC
¾
¾
¾
¾
¾
C
C
C
Ö
March 15, 2000
HT827A0