&GUETKRVKQP 7KH V RSHUDQG DORQJ ZLWK WKH &DUU\ IODJ & LQ WKH ) UHJLVWHU LV VXEWUDFWHG
IURP WKH FRQWHQWV RI WKH $FFXPXODWRU DQG WKH UHVXOW LV VWRUHG LQ WKH
$FFXPXODWRU
%QPFKVKQP $KVU #HHGEVGF
6 LV VHW LI UHVXOW LV QHJDWLYH UHVHW RWKHUZLVH
= LV VHW LI UHVXOW LV ]HUR UHVHW RWKHUZLVH
+ LV VHW LI ERUURZ IURP ELW UHVHW RWKHUZLVH
39 LV UHVHW LI RYHUIORZ UHVHW RWKHUZLVH
1 LV VHW
& LV VHW LI ERUURZ UHVHW RWKHUZLVH
'ZCORNG
,I WKH $FFXPXODWRU FRQWDLQV
FRQWDLQV
SBC A, (HL)
80
5HJLVWHU
B
C
D
E
H
L
A
,QVWUXFWLRQ
0 &\FOHV
SBC A, r
SBC A, n
SBC A, (HL)
SBC A, (IX+d)
SBC A, (lY+d)
DQG DGGUHVV
3433H
WKH $FFXPXODWRU FRQWDLQV
U
000
001
010
011
100
101
111
7 6WDWHV
1
4
2
7(4, 3)
2
7 (4, 3)
5
19 (4, 4, 3, 5, 3)
5
19 (4, 4, 3, 5, 3)
WKH FDUU\ IODJ LV VHW WKH +/ UHJLVWHU SDLU
16H
FRQWDLQV
3433H
05H
10H
< %27
7UGT U /CPWCN
0+] (7
1.00
1.75
1,75
4.75
4.75
DW H[HFXWLRQ RI
= ,QVWUXFWLRQ 6HW
Need help?
Do you have a question about the Z80 and is the answer not in the manual?
Questions and answers