HT67F60 datasheet(234/242 Pages) HOLTEK

234 / 242 page

Rev. 1.50

234

March 06 , 2012

Rev. 1.50

235

March 06 , 2012

HT67F30/HT67F40/HT67F50/HT67F60

TinyPowerTM A/D Flash Type 8-Bit MCU with LCD & EEPRO

Rotate Data Memory right through Carry with result in ACC

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.

ACC.i ← [m].(i+1); (i = 0~6)

ACC.7 ← C

C ← [m].0

Subtract Data Memory from ACC with Carry

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.

ACC ← ACC − [m] − C

OV, Z, AC, C

Subtract Data Memory from ACC with Carry and result in Data Memory

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.

ACC ← ACC − [m] − C

OV, Z, AC, C

Skip if decrement Data Memory is 0

The contents of the specified Data Memory are first decremented 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.

[m] ← [m] − 1

Skip if [m] = 0

None

Skip if decrement Data Memory is zero with result in ACC

The contents of the specified Data Memory are first decremented by 1. If the result

is 0, the following instruction is skipped. The result is stored in the Accumulator

but the specified 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.

ACC ← [m] − 1

Skip if ACC = 0

None

RRCA [m]

Description

Operation

Affected flag(s)

SBC A,[m]

Description

Operation

Affected flag(s)

SBCM A,[m]

Description

Operation

Affected flag(s)

SDZ [m]

Description

Operation

Affected flag(s)

SDZA [m]

Description

Operation

Affected flag(s)

HT67F60 Datasheet(PDF) 234 Page - Holtek Semiconductor Inc

HT67F60 Datasheet(HTML) 234 Page - Holtek Semiconductor Inc

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