Z86E3016PSG Datasheet, PDF (291/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 CPU
User Manual
273
Load External Data
LDE dst, src
Instruction Format
OPC
OPC
dst src
src dst
Cycles
12
OPC
(Hex)
82
12
92
Address Mode
dst
src
r
Irr
Irr
r
Operation
dst ← src
This instruction is used to load a byte from external data memory into a
Working Register or vice versa. The address of the external data memory
location is specified by a Working Register Pair. The contents of the
source operand are not affected.
Flag
C
Z
S
V
D
H
Description
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Example
If Working Register Pair R6 and R7 contain the value 40A2h and external
data memory location 40A2h contains the value 22h, the statement:
LDE R2, @RR6
Op Code: 82 26
UM001602-0904
Instruction Description