Addressing Of Operand Address; Direct Addressing - NEC 78K/0S Series User Manual

8-bit single-chip microcontroller
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3.2 Addressing of Operand Address

The following methods are available to specify the register and memory (addressing) which undergo manipulation
during instruction execution.

3.2.1 Direct addressing

[Function]
This addressing directly addresses a memory to be manipulated with immediate data in an instruction word.
[Operand format]
Operand
addr16
Label or 16-bit immediate data
[Description example]
MOV A, !FE00H; When setting !addr16 to FE00H
Instruction code
[Illustration]
CHAPTER 3 ADDRESSING
Description
0
0
1
0
0
0
0
0
1
1
1
1
7
OP code
addr16 (lower)
addr16 (higher)
User's Manual U11047EJ3V0UM00
1
0
0
1
OP code
0
0
0
0
00H
1
1
1
0
FEH
0
Memory
33

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