Zilog Z8F0130 Manual de usuario descargar pdf (Pagina 257)

100

101

eZ8

™

CPU Core

User Manual

UM012820-0810 TCMX Instruction

242

TCMX

Definition

Test Complement Under Mask using Extended Addressing.

Syntax

TCMX dst, src

Operation

(NOT dst) AND src

Description

This new eZ8 extended addressing instruction tests selected bits in the

destination operand for a logical 1 value. Specify the bits to be tested by

setting a 1 bit in the corresponding bit position in the source operand (the

mask). The TCMX instruction complements the destination operand and

AND’s it with the source mask (operand). Check the Zero flag to deter

mine the result. If the Z flag is set, then the tested bits are 1. When a

TCMX operation is completed, the destination and source operands still

contain their original values.

Flags

C Unaffected

Z Set if the result is zero; reset otherwise

S Set if the result is negative; reset otherwise

V Reset to 0

D Unaffected

H Unaffected

1 2 ... 252 253 254 255 256 257 258 259 260 261 262 ... 313 314

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Zilog Z8F0130 Manual de usuario Pagina 257

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