Holtek BS66F340 - Page 227

Rev. 1.60 226 August 20, 2019 Rev. 1.60 227 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
SET [m]
Set Data Memory
Description Each bit of the specied Data Memory is set to 1.
Operation [m] ← FFH
Affected ag(s) None
SET [m].i
Set bit of Data Memory
Description Bit i of the specied Data Memory is set to 1.
Operation [m].i ← 1
Affected ag(s) None
SIZ [m]
Skip if increment Data Memory is 0
Description The contents of the specied Data Memory are rst incremented by 1. If the result is 0, the
following instruction is skipped. As this requires the insertion of a dummy instruction while
the next instruction is fetched, it is a two cycle instruction. If the result is not 0 the program
proceeds with the following instruction.
Operation [m] ← [m] + 1
Skip if [m]=0
Affected ag(s) None
SIZA [m]
Skip if increment Data Memory is zero with result in ACC
Description The contents of the specied Data Memory are rst incremented by 1. If the result is 0, the
following instruction is skipped. The result is stored in the Accumulator but the specied
Data Memory contents remain unchanged. As this requires the insertion of a dummy
instruction while the next instruction is fetched, it is a two cycle instruction. If the result is not
0 the program proceeds with the following instruction.
Operation ACC ← [m] + 1
Skip if ACC=0
Affected ag(s) None
SNZ [m].i
Skip if Data Memory is not 0
Description If the specied Data Memory is not 0, the following instruction is skipped. As this requires the
insertion of a dummy instruction while the next instruction is fetched, it is a two cycle
instruction. If the result is 0 the program proceeds with the following instruction.
Operation Skip if [m].i ≠ 0
Affected ag(s) None
SNZ [m]
Skip if Data Memory is not 0
Description If the specied Data Memory is not 0, the following instruction is skipped. As this requires the
insertion of a dummy instruction while the next instruction is fetched, it is a two cycle
instruction. If the result is 0 the program proceeds with the following instruction.
Operation Skip if [m]≠ 0
Affected ag(s) None
SUB A,[m]
Subtract Data Memory from ACC
Description The specied Data Memory is subtracted from the contents of 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]
Affected ag(s) OV, Z, AC, C, SC, CZ