NEC NEC PD78081(A), User Manual

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48
CHAPTER 3 CPU ARCHITECTURE
15
0
Short Direct Memory
Effective Address
1 1 1 1 1 1 1
8 7
0 7
OP code
saddr-offset
α
[Description example]
MOV 0FE30H, #50H; when setting saddr to FE30H and immediate data to 50H
Operation code 0 0 0 1 0 0 0 1 OP code
0 0 1 1 0 0 0 0 30H (saddr-offset)
0 1 0 1 0 0 0 0 50H (immediate data)
[Illustration]
When 8-bit immediate data is 20H to FFH,
α
= 0
When 8-bit immediate data is 00H to 1FH,
α
= 1