PM0044 datasheet(64/162 Pages) STMICROELECTRONICS

64 / 162 page

STM8 instruction set

PM0044

64/162

Doc ID 13590 Rev 3

7.2.5

Operation code notation

extended order byte of 24-bit extended address

high order byte of 16-bit long address or middle order byte of 24-bit extended address

short address or low order byte of 16-bit long address or 24-bit extended address

immediate data byte or low order byte of 16-bit immediate data

high order byte of 16-bit immediate data

relative offset byte in a range of [-128..+127]

7.3

Instruction set summary

Table 42.

Instruction set summary

Description

Effect on CC register

Syntax example

Operation

Example

op-

code(s)

VI1

ADC

Add with carry

ADC A,($12,SP)

← A + M(SP+shortoff) +

CC.C

19 bb

ADD

Add without

carry

ADD A,($12,SP)

← A + M(SP+shortoff)

1B bb

ADD SP,#$12

← SP + imm.b

5B ii

ADDW

Add word

without carry

ADDW X,($12,SP)

←-X + M(SP+shortoff)

72 FB bb

AND

Logical AND

AND A,($12,SP)

← A AND

M(SP+shortoff)

14 bb

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