Zilog Z16F2810 Uživatelský manuál stáhnout pdf (Strana 100)

COM Instruction UM018809-0611

ZNEO

CPU Core

User Manual

COM

Definition

Complement

Syntax

COM dst

Operation

dst 

~dst

Description

The contents of the destination operand are complemented (one’s complement). All 1 bits are

changed to 0 and all 0 bits are changed to 1.

Flags

Flags are set based on the 32-bit destination register value.

Syntax and Opcodes

76543210

C Z S V B CIRQE IRQE

0**0*–––

Legend

C = Cleared to 0.

Z = Set to 1 if the result is zero; otherwise, set to 0.

S = Set to 1 if the result msb is 1; otherwise set to 0.

V = Cleared to 0.

B = Set to 1 if the initial destination value was 0; otherwise set to 0.

CIRQE = No change.

IRQE = No change.

Instruction, Operands Word 0 Word 1 Word 2

COM Rd {454H, Rd}

Note:

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 215 216

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Zilog Z16F2810 Uživatelský manuál Strana 100