Zilog Z80380 Bedienungsanleitung Seite 103

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Seitenansicht 102
5-69
Z380
USER'S MANUAL
ZILOG
DC-8297-03
INAW
INPUT DIRECT FROM PORT ADDRESS (WORD)
INAW HL,(nn)
Operation: HL(15-0) (nn)
The word of data from the selected peripheral is loaded into the HL register. During the
I/O transaction, the peripheral address from the instruction is placed on the address bus.
Any bytes of address not specified in the instruction are driven on the address lines as all
zeros.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing Execute
Mode Syntax Instruction Format Time Note
INAW HL,(nn) 11111101 11011011 -n(low)- -n(high) 3+i I
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