z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 196
z80189
Manufacturer Part Number
z80189
Description
Z80180, Z8s180, Z8l180 Mpu Operation
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z80189.pdf
(326 pages)
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16-bit Register
8-bit Register
Figure 75.
Register Indirect (REG)
The memory operand address is contained in one of the 16-bit General
Purpose Registers (BC, DE, and HL) as illustrated in Figure 76.
Figure 76.
Suffixed H and L ww,xx,yy,zz (ex. wwH,IXL) indicate upper and
lower 8-bit of the 16-bit register respectively.
g or g field '
zz field
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0
0 1
1 0
1 1
0
B C
D E
H L
Register Direct — Bit Field Definitions
Register Indirect Addressing
Register
Register
B C
D E
H L
A F
—
B
C
D
E
H
A
L
ww field
yy field
xx field
Family MPU User Manual
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
Operand
Memory
Register
Register
Register
UM005003-0703
B C
D E
H L
S P
B C
D E
I X
S P
B C
D E
I Y
S P
Z8018x
181
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