NEC PD78053 Manuale Utente
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CHAPTER 5 CPU ARCHITECTURE
5.4.3 Direct addressing
[Function]
This addressing directly addresses the memory indicated by the immediate data in an instruction word.
[Operand format]
Identifier
Description
addr16
Label or 16-bit immediate data
[Description example]
MOV A, !0FE00H; when setting !addr16 to FE00H
Operation code
1 0 0 0 1 1 1 0
OP code
0 0 0 0 0 0 0 0
00H
1 1 1 1 1 1 1 0
FEH
[Illustration]
Memory
0
7
OP code
saddr16 (low)
saddr16 (high)