Register Indirect Addressing - NEC 78K/0S Series User Manual

3.2.5 Register indirect addressing

[Function]
This addressing is to address memory using the contents of the special register pair as an operand. The
register pair to be accessed is specified with the register pair specification code in an instruction code. This
addressing can be carried out for the entire memory space.
[Operand format]
Operand

[DE], [HL]
[Description example]
MOV A, [DE]; When selecting register pair [DE]
Instruction code
[Illustration]
15
DE
The contents of
the specified memory
address are transferred.
7
A
CHAPTER 3 ADDRESSING
Description
0 0 1 0 1
8 7
D
7
0
User's Manual U11047EJ3V0UM00
0 1 1
0
E
Memory address
specified with
0
register pair DE
37