z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 223

• Manufacturer Part Number: z80189
• Description: Z80180, Z8s180, Z8l180 Mpu Operation
• Manufacturer: ZiLOG Semiconductor

Instruction Set
REGISTER
Table 32.
BIT
Register Values
This section explains the symbols in the instruction set.
g, g', ww, xx, yy, and zz specify a register to be used. g and g' specify an
8-bit register. ww, xx, yy, and zz specify a pair of 8-bit registers. Table 32
describes the correspondence between symbols and registers.
Note: Suffixed H and L to ww, xx, yy, zz (ex. wwH, IXL) indicate upper and lower
8-bit of the 16-bit register respectively.
b specifies a bit to be manipulated in the bit manipulation instruction.
Table 33 indicates the correspondence between b and bits.
g,g' Reg.
000 B
001 C
010 D
011
100 H
101 L
111
E
A
ww
00
01
10
11
Reg.
BC
DE
HL
SP
xx
00
01
10
11
Reg.
BC
DE
IX
SP
Family MPU User Manual
yy
00
01
10
11
Reg.
BC
DE
IY
SP
zz
00
01
10
11
UM005003-0703
Reg.
BC
DE
HL
AF
Z8018x
207