Holtek HT66F60A Manual page 222

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
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 ← [m].0
Affected flag(s) None
Rotate Data Memory right through Carry
RRC [m]
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 replaces
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
SBC A,[m] Subtract Data Memory from ACC with Carry
Description The contents of the specified Data Memory and the complement of the carry flag are
subtracted from the Accumulator. The result is stored in the Accumulator. Note that if the
result of subtraction is negative, the C flag will be cleared to 0, otherwise if the result is
positive or zero, the C flag will be set to 1.
Operation ACC ← ACC − [m] − C
Affected flag(s) OV, Z, AC, C, SC, CZ
SBC A, x Subtract immediate data from ACC with Carry
Description The immediate data and the complement of the carry flag are subtracted from the
Accumulator. The result is stored in the Accumulator. Note that if the result of subtraction is
negative, the C flag will be cleared to 0, otherwise if the result is positive or zero, the C flag
will be set to 1.
Operation ACC ← ACC - [m] - C
Affected flag(s) OV, Z, AC, C, SC, CZ
SBCM A,[m] Subtract Data Memory from ACC with Carry and result in Data Memory
Description The contents of the specified Data Memory and the complement of the carry flag are
subtracted from the Accumulator. The result is stored in the Data Memory. Note that if the
result of subtraction is negative, the C flag will be cleared to 0, otherwise if the result is
positive or zero, the C flag will be set to 1.
Operation [m] ← ACC − [m] − C
Affected flag(s) OV, Z, AC, C, SC, CZ
Rev. 1.40
HT66F60A/HT66F70A
A/D Flash MCU with EEPROM
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