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

3.2.6 Register indirect addressing

[Function]
Register indirect addressing addresses memory with register pair contents specified as an operand. The
register pair to be accessed is specified by the register bank selection flags (RBS0 and RBS1) and the
register pair specification in instruction codes.
[Operand format]
Identifier
—
[DE], [HL]
[Description example]
MOV A, [DE]; When selecting register pair [DE]
[Illustration]
15
DE
Contents of memory to be
addressed are transferred
7
A
CHAPTER 3 ADDRESSING
Description
Instruction code 1 0
8 7
D
7
0
User's Manual U12326EJ4V0UM
0 0 0 1 0 1
0
E
Memory address specified
0
Memory
by register pair DE
29