ZiLOG Z80 User Manual page 251

1RGTCVKQP +/ E ‘ 
1R %QFG 6(7
1RGTCPFU E +/
1
1
&GUETKRVKQP %LW E LQ WKH PHPRU\ ORFDWLRQ DGGUHVVHG E\ WKH FRQWHQWV RI UHJLVWHU SDLU +/
LV VHW 2SHUDQG E LV VSHFLILHG DV IROORZV LQ WKH DVVHPEOHG REMHFW FRGH
%QPFKVKQP $KVU #HHGEVGF 1RQH
'ZCORNG ,I WKH FRQWHQWV RI WKH +/ UHJLVWHU SDLU DUH
SET 4
ORFDWLRQ
80
6(7 E +/
1 0 0 1
1 b
%LW 7HVWHG
0
1
2
3
4
5
6
7
0 &\FOHV
4
 ELW  LQ PHPRU\ ORFDWLRQ
(HL)
LV WKH OHDVWVLJQLILFDQW ELW
3000H
CB
0 1 1
r
E
000
001
010
011
100
101
110
111
7 6WDWHV
15 (4, 4, 4, 3)
3000H
3000H
< %27
7UGT U /CPWCN
 0+] (7
3.75
 DW H[HFXWLRQ RI
LV  %LW  LQ PHPRU\
= ,QVWUXFWLRQ 6HW