Table 46. I/O Instructions - ZiLOG Z8018 Series User Manual

Table 46. I/O Instructions
Operation
Name Mnemonics Op Code
INPUT IN A,(m) 11 011 011
<m>
IN g,(C) 11 101 101
01 g 000
IN0 g,(m)** 11 101 101
00 g 000
<m>
IND 11 101 101
10 101 010
INDR 11 101 101
10 111 010
INI 11 101 101
10 100 010
Addressing
Immed Ext Ind Reg RegI Imp Rel
D
D
D
D
D
D
Family MPU User Manual
Bytes States Operation
S 2 9 (Am)1,→Ar
m→A0~A7
Ar→A8~A16
S 2 9 (BC)1→gr
g = 110 : Only the
flags change
Cr→A0~A7
Br→A8~16
S 3 12 (00m)g→gr
g = 110 : Only the
flags change
m→A0~A7
(00)→A8~A16
→(HL)
S 2 12 (BC)
M
Hl2→1→Hl2
Br→1→Br
Cr→A0~A7
14 (Br ≠ 0)
S 2 (BC)1→(HL)
Q HL2→1→HL8
12 (BR =
Br-1→Br
0)
Repeat Q until
Br = 0
Cr→A0~A7
Br→A8∼A16
S 2 12 (BC)1→(HL)
HL + 1→HL
R
Br-1→Br
Cr→A0~A7
Br→A8~A16
Z8018x
Flags
7 6 4 2 1 0
S Z H P/V N C
• • • • • •
↑ ↑ R P R •
↑ ↑ R P R •
(5) (6)
↑ ↑
X X X X
M
(6)
↑
X S X X X
M
(5) (6)
X ↑ X X ↑ X
M
R
(6)
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