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HT82K74EE Arkusz danych(PDF) 44 Page - Holtek Semiconductor Inc

Numer części HT82K74EE
Szczegółowy opis  27MHz Keyboard/ Mouse TX 8-Bit MCU
PDF  56 Pages
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Producent  HOLTEK [Holtek Semiconductor Inc]
Strona internetowa  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT82K74EE Arkusz danych(HTML) 44 Page - Holtek Semiconductor Inc

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RLC [m]
Rotate Data Memory left through Carry
Description
The contents of the specified Data Memory and the carry flag are rotated left by 1 bit. Bit 7
replaces the Carry bit and the original carry flag is rotated into bit 0.
Operation
[m].(i+1)
¬ [m].i; (i = 0~6)
[m].0
¬ C
C
¬ [m].7
Affected flag(s)
C
RLCA [m]
Rotate Data Memory left through Carry with result in ACC
Description
Data in the specified Data Memory and the carry flag are rotated left by 1 bit. Bit 7 replaces
the Carry bit and the original carry flag is rotated into the bit 0. The rotated result is stored in
the Accumulator and the contents of the Data Memory remain unchanged.
Operation
ACC.(i+1)
¬ [m].i; (i = 0~6)
ACC.0
¬ C
C
¬ [m].7
Affected flag(s)
C
RR [m]
Rotate Data Memory right
Description
The contents of the specified Data Memory are rotated right by 1 bit with bit 0 rotated into
bit 7.
Operation
[m].i
¬ [m].(i+1); (i = 0~6)
[m].7
¬ [m].0
Affected flag(s)
None
RRA [m]
Rotate Data Memory right with result in ACC
Description
Data in the specified Data Memory and the carry flag are rotated right by 1 bit with bit 0 ro-
tated into bit 7. The rotated result is stored in the Accumulator and the contents of the Data
Memory remain unchanged.
Operation
ACC.i
¬ [m].(i+1); (i = 0~6)
ACC.7
¬ [m].0
Affected flag(s)
None
RRC [m]
Rotate Data Memory right through Carry
Description
The contents of the specified Data Memory and the carry flag are rotated right by 1 bit. Bit 0
replaces the Carry bit and the original carry flag is rotated into bit 7.
Operation
[m].i
¬ [m].(i+1); (i = 0~6)
[m].7
¬ C
C
¬ [m].0
Affected flag(s)
C
RRCA [m]
Rotate Data Memory right through Carry with result in ACC
Description
Data in the specified Data Memory and the carry flag are rotated right by 1 bit. Bit 0 re-
places the Carry bit and the original carry flag is rotated into bit 7. The rotated result is
stored in the Accumulator and the contents of the Data Memory remain unchanged.
Operation
ACC.i
¬ [m].(i+1); (i = 0~6)
ACC.7
¬ C
C
¬ [m].0
Affected flag(s)
C
HT82K74E/HT82K74EE
Rev. 1.00
44
December 15, 2009



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