ST7MC2S4-Auto datasheet(307/371 Pages) STMICROELECTRONICS

307 / 371 page

Obsolete

Product(s)

- Obsolete

Product(s)

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto

Instruction set

307/371

11.1.7

Relative mode (direct, indirect)

This addressing mode is used to modify the PC register value, by adding an 8-bit signed

offset to it.

The relative addressing mode consists of two sub-modes:

●

Relative (direct)

The offset is following the opcode.

●

Relative (indirect)

The offset is defined in memory, the address of which follows the opcode.

Table 182.

Short instructions and functions

Short instructions only

Function

CLR

Clear

INC, DEC

Increment/decrement

TNZ

Test negative or zero

CPL, NEG

1 or 2 complement

BSET, BRES

Bit operations

BTJT, BTJF

Bit test and jump operations

SLL, SRL, SRA, RLC, RRC

Shift and rotate operations

SWAP

Swap nibbles

CALL, JP

Call or jump subroutine

Table 183.

Relative direct and indirect instructions

Available relative direct/indirect instructions

Function

JRxx

Conditional jump

CALLR

Call relative

Obsolete

Product(s)

- Obsolete

Product(s)

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