Z86E3016PSG Datasheet, PDF (293/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 CPU
User Manual
275
Load External Data Autoincrement
LDEI dst, src
Instruction Format
OPC
dst src
Cycles
18
OPC
(Hex)
83
OPC
src dst
18
93
Address Mode
dst
src
Ir
Irr
Irr
Ir
Operation
dst ← src
r←r+1
rr ← rr + 1
This instruction is used for block transfers of data between external data
memory and the Register File. The address of the external data memory
location is specified by a Working Register Pair, and the address of the
Register File location is specified by a Working Register. The contents of
the source location are loaded into the destination location. Both
addresses in the Working Registers are then incremented automatically.
The contents of the source are not affected.
Flag
C
Z
S
V
D
H
Description
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
Unaffected
UM001602-0904
Instruction Description