HTG1390 Просмотр технического описания (PDF) - Holtek Semiconductor

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HTG1390

4-bit Microcontroller

Holtek Semiconductor 

Preliminary

HTG1390

Instruction Definitions

ADC A,[R1R0]

Machine code

Description

Operation

Add data memory contents and carry to accumulator

00001000

The contents of the data memory addressed by the register pair “R1,R0”

and the carry are added to the accumulator. Carry is affected.

ACC ← ACC+M(R1,R0)+CF

ADD A,XH

Machine code

Description

Operation

Add immediate data to accumulator

01000000 0000dddd

The specified data is added to the accumulator. Carry is affected.

ACC ← ACC+XH

ADD A,[R1R0]

Machine code

Description

Operation

Add data memory contents to accumulator

00001001

The contents of the data memory addressed by the register pair “R1,R0” is

added to the accumulator. Carry is affected.

ACC ← ACC+M(R1,R0)

AND A,XH

Machine code

Description

Operation

Logical AND immediate data to accumulator

01000010 0000dddd

Data in the accumulator is logically ANDed with the immediate data speci-

fied by the code.

ACC ← ACC “AND” XH

AND A,[R1R0]

Machine code

Description

Operation

Logical AND accumulator with data memory

00011010

Data in the accumulator is logically ANDed with the data memory ad-

dressed by the register pair “R1,R0”.

ACC ← ACC “AND” M(R1,R0)

AND [R1R0],A

Machine code

Description

Operation

Logical AND data memory with accumulator

00011101

Data in the data memory addressed by the register pair “R1,R0” is logi-

cally ANDed with the accumulator

M(R1,R0) ← M(R1,R0) “AND” ACC

16

17th Nov ’98

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