Holtek BS66F340 - Page 233

Rev. 1.60 232 August 20, 2019 Rev. 1.60 233 August 20, 2019
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
LRR [m]
Rotate Data Memory right
Description The contents of the specied 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 ag(s) None
LRRA [m]
Rotate Data Memory right with result in ACC
Description Data in the specied Data Memory is 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 ag(s) None
LRRC [m]
Rotate Data Memory right through Carry
Description The contents of the specied Data Memory and the carry ag are rotated right by 1 bit. Bit 0
replaces the Carry bit and the original carry ag is rotated into bit 7.
Operation [m].i ← [m].(i+1); (i=0~6)
[m].7 ← C
C ← [m].0
Affected ag(s) C
LRRCA [m]
Rotate Data Memory right through Carry with result in ACC
Description Data in the specied Data Memory and the carry ag are rotated right by 1 bit. Bit 0 replaces
the Carry bit and the original carry ag 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 ag(s) C
LSBC A,[m]
Subtract Data Memory from ACC with Carry
Description The contents of the specied Data Memory and the complement of the carry ag are
subtracted from the Accumulator. The result is stored in the Accumulator. Note that if the
result of subtraction is negative, the C ag will be cleared to 0, otherwise if the result is
positive or zero, the C ag will be set to 1.
Operation ACC ← ACC − [m] − C
Affected ag(s) OV, Z, AC, C, SC, CZ
LSBCM A,[m]
Subtract Data Memory from ACC with Carry and result in Data Memory
Description The contents of the specied Data Memory and the complement of the carry ag are
subtracted from the Accumulator. The result is stored in the Data Memory. Note that if the
result of subtraction is negative, the C ag will be cleared to 0, otherwise if the result is
positive or zero, the C ag will be set to 1.
Operation [m] ← ACC − [m] − C
Affected ag(s) OV, Z, AC, C, SC, CZ