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Ldei – Zilog Z8F0130 User Manual

Page 191

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eZ8

CPU Core

User Manual

UM012820-0810

LDEI Instruction

176

LDEI

Definition

Load External Data to/from Data Memory and Auto-Increment
Addresses.

Syntax

LDEI dst, src

Operation

dst

 src

r

 r + 1

rr

 rr + 1

Description

This instruction performs block transfers of data between Data Memory
and the Register File. The address of the Data Memory location is speci-
fied by a Working Register Pair and the address of the Register File loca-
tion is specified by a working register. The contents of the source location
are loaded into the destination location. Both addresses in the Working
Registers increment automatically. The contents of the source are unaf-
fected.

Flags

C

Unaffected

Z

Unaffected

S

Unaffected

V

Unaffected

D

Unaffected

H

Unaffected