Zilog Z8F0130 Manual do Utilizador descarregar pdf (Página 271)

100

101

eZ8

™

CPU Core

User Manual

UM012820-0810 XORX Instruction

256

XORX

Definition

Logical Exclusive OR using Extended Addressing.

Syntax

XORX dst, src

Operation

dst



dst XOR src

Description

For this new eZ8 extended addressing instruction, the source operand is

logically EXCLUSIVE ORed with the destination operand. An XORX

operation stores a 1 in the destination operand when the corresponding

bits in the two operands are different; otherwise it stores a 0. The contents

of the source operand are unaffected.

Flags

C Unaffected

Z Set if the result is zero; reset otherwise

S Set if Bit 7 of the result is set; reset otherwise

V Reset to 0

D Unaffected

H Unaffected

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