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Ld r, r, Operation, Description – Zilog EZ80F916 User Manual

Page 236: Condition bits affected, Attributes

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eZ80

®

CPU

User Manual

UM007715-0415

CPU Instruction Set

227

LD r, r’

Load Register

Operation

r

r’

Description

The r and r’ operands are any of A, B, C, D, E, H, or L. The CPU writes the contents of

the r’ register to the r register. The r’ register described here should not be confused with

the registers in the alternate working register set.

Condition Bits Affected

None.

Attributes

jj

= binary code

01 ddd sss

where

ddd

identifies the destination A, B, C, D, E, H, or L

register and

sss

identifies the source A, B, C, D, E, H, or L register assembled in the

object code, as indicated in

Table 70

.

Mnemonic Operand

ADL Mode Cycle

Opcode (hex)

LD

r

,r’

X

1

jj

Table 70. Register and

jj

Opcodes for LD r, r’ Instruction (hex)

Register jj (ddd or sss)

A

111

B

000

C

001

D

010

E

011

H

100

L

101

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