PM0044 datasheet(61/162 Pages) STMICROELECTRONICS

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PM0044

STM8 instruction set

Doc ID 13590 Rev 3

61/162

STM8 instruction set

7.1

Introduction

This chapter describes all the STM8 instructions. There are 96 and they are described in

alphabetical order. However, they can be classified in 13 main groups as follows:

The instructions are described with one to five bytes.

Table 41.

Instruction groups

Load and

Transfer

LDF

CLR

MOV

EXG

LDW

CLRW

EXGW

Stack

operation

PUSH

POP

PUSH

POPW

Increment/

Decrement

INC

DEC

INCW

DECW

Compare and

Tests

TNZ

BCP

CPW

TNZW

Logical

operations

AND

XOR

CPL

CPLW

Bit Operation

BSET

BRES

BCPL

BCCM

Conditional Bit

Test and

Branch

BTJT

BTJF

Arithmetic

operations

NEG

ADC

ADD

SUB

SBC

MUL

DIV

DIVW

NEGW ADDW

SUBW

Shift and

Rotates

SLL

SRL

SRA

RLC

RRC

SWAP

SLLW

SRLW

SRAW

RLCW RRCW

SWAP

RLWA

RRWA

Unconditional

Jump or Call

JRA

JRT

JRF

JPF

CALL

CALLR CALLF

RET

RETF

NOP

Conditional

Branch/

Execution

JRxx

WFE

Interrupt

management

TRAP

WFI

HALT

IRET

Condition

Code Flag

modification

SIM

RIM

SCF

RCF

CCF

RVF

Breakpoint/

software break

BREAK

PC-1

End of previous instruction

Op-code

PC+1..4 Additional word (0 to 4) according to the number of bytes required to compute the

effective address(es)

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