ZiLOG Z80 User Manual page 155

1RGTCVKQP $  +/  +/ ‘ +/  %& ‘ %& 
1R %QFG &3'
1RGTCPFU ²
1
1
&GUETKRVKQP 7KH FRQWHQWV RI WKH PHPRU\ ORFDWLRQ DGGUHVVHG E\ WKH +/ UHJLVWHU SDLU LV
FRPSDUHG ZLWK WKH FRQWHQWV RI WKH $FFXPXODWRU ,Q FDVH RI D WUXH
FRPSDUH D FRQGLWLRQ ELW LV VHW 7KH +/ DQG %\WH &RXQWHU UHJLVWHU SDLU
%& DUH GHFUHPHQWHG
%QPFKVKQP $KVU #HHGEVGF
6 LV VHW LI UHVXOW LV QHJDWLYH UHVHW RWKHUZLVH
= LV VHW LI $ HTXDOV +/ UHVHW RWKHUZLVH
+ LV VHW LI ERUURZ IURP ELW  UHVHW RWKHUZLVH
39 LV VHW LI %&  [  UHVHW RWKHUZLVH
1 LV VHW
& LV QRW DIIHFWHG
'ZCORNG ,I WKH +/ UHJLVWHU SDLU FRQWDLQV
3BH
$W H[HFXWLRQ RI
SDLU FRQWDLQV
UHJLVWHU UHVHWV 7KHUH LV QR HIIHFW RQ WKH FRQWHQWV RI WKH $FFXPXODWRU RU
DGGUHVV
80
1 1 0 1
0 1 0 1
0 &\FOHV
4
 WKH $FFXPXODWRU FRQWDLQV
WKH %\WH &RXQWHU FRQWDLQV
CPD
 WKH IODJ LQ WKH ) UHJLVWHU VHWV DQG WKH 39 IODJ LQ WKH )
1110H

1111H
&3'
ED
1 0 1
A9
0 0 1
7 6WDWHV
16 (4, 4, 3, 5)
 PHPRU\ ORFDWLRQ
1111H
 DQG WKH %\WH &RXQWHU FRQWDLQV
3BH
< %27
7UGT U /CPWCN
 0+] (7
4.00
FRQWDLQV
1111H
 WKH +/ UHJLVWHU
0000H
= ,QVWUXFWLRQ 6HW


0001H