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CHAPTER 3 CPU ARCHITECTURE
User’s Manual U15104EJ2V0UD
3.4.6 Register indirect addressing
[Function]
This addressing is used to address the memory to be manipulated by using the contents of the register pair
specified by the register pair code in an instruction word as the operand address. The register pair specified
is in the register bank specified by the register bank select flags (RBS0 and RBS1). This addressing can be used
for the entire memory space.
[Operand format]
Symbol
Description
—
[DE], [HL]
[Example]
MOV A, [DE]; when selecting [DE] as register pair
Operation code
1 0 0 0 0 1 0 1
[Illustration]
15
0
8
D
7
E
0
7
7 0
A
DE
Memory
Содержание mPD178053
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