CHAPTER 3 CPU ARCHITECTURE
User’s Manual U17446EJ3V1UD
42
3.4 Operand Address Addressing
The following methods (addressing) are available to specify the register and memory to undergo manipulation
during instruction execution.
3.4.1 Direct addressing
[Function]
The memory indicated by immediate data in an instruction word is directly addressed.
[Operand format]
Identifier Description
addr16
Label or 16-bit immediate data
[Description example]
MOV A, !0FE80H; When setting !addr16 to FE80H
Instruction
code 0 0
1
0
1
0
0
1
OP
code
1
0
0
0
0
0
0
0
80H
1
1
1
1
1
1
1
0
FEH
[Illustration]
7
0
OP code
addr16 (low)
addr16 (high)
Memory
Содержание 78K0S/KB1+
Страница 2: ...User s Manual U17446EJ3V1UD 2 MEMO ...