Zilog Z80180 - Manual (Page 242)

Z8018x
Family MPU User Manual
226
UM005003-0703
CPI 11101101 S S 2 12 Ar-(HL)
M
­ ­ ­ ­ S ·
10100001 BC
R
-1 ®BC
R
HL
R
+ 1 ®HL
R
(3) (2)
CPIR 11101101 S S 2 14 BC
R
¹ 0 Ar*(HL)
M
­ ­ ­ ­ S ·
10110001 12 BC
R
= 0 or Ar = (HL)
M
Ar-(HL)
M
Q BC
R
-1 ®BC
R
HL
R
+ 1 ®HL
R
Repeat Q until
Ar = (HL)
M
or BC
R
= 0 (2)
LDD 11 101 101 S/D 2 12 (HL)
M
® (DE)
M
· · R ­ R ·
10 101 000 BC
R
-1 ®BC
R
DE
R
-1 ®DE
R
HL
R
-1 ®HL
R
LDDR 11 101 101 S/D 2 14(BC
R
¹ 0) (HL)
M
® (DE)
M
BC
R
-1 ® BC
R
Q DE
R
-1 ® DE
R
HL
R
-1 ® HL
R
· · R R R ·
10 111 000 12(BC
R
= 0)
Repeat Q until
BC
R
= 0 (2)
LDI 11 101 101 S/D 2 12 (HL)
M
®DE)
R
· · R ­ R ·
10 100 000 BC
R
-1 ®BC
R
DE
R
+ 1 ®DE
R
HL
R
+ 1 ®HL
R
LDIR 11 101 101 S/D 2 14(BC
R
¹0) (HL)
M
®(DE)
M
Q BC
R
-1 ®BC
R
DE
R
+ 1 ®DE
R
HL
R
+ 1 ®HL
R
· · R R R ·
10 110 000 12(BC
R
= 0)
Repeat Q until
BC
R
= 0
(2) P/V = 0: BC
R
-1 = 0
P/V = 1: BC
R
-1 ¹ 0
(3) Z = 1: Ar = (HL)
M
Z = 0 :Ar ¹ (HL)
M
Table 43. Block Transfer (Continued)
Operation
Name
Mnemonics Op Code
Addressing
Bytes States Operation
Flags
7 6 4 2 1 0
Immed Ext Ind Reg RegI Imp Rel S Z H P/V N C