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11.3 Opcode of Each Instruction
(1) Description of symbol of opcode
R
R
R
reg
2
1
0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Q
Q
Q
2
1
0
0
0
0
@HL
0
1
0
@HL+
0
1
1
@HL–
1
0
0
@DE
1
0
1
@DL
N
N
N
5
2
1
0
0
0
0
1
0
0
1
1
0
1
1
1
0
0
1
1
0
1
1
0
I
:
Immediate data for n4 or n8
n
D
: Immediate data for mem
n
B
: Immediate data for bit
n
N
: Immediate data for n or IE×××
n
: Immediate data for taddr × 1/2
T
n
A
: Immediate data for [relative address distance from branch destination address (2-16)] – 1
n
S
: Immediate data for 1's complement of [relative address distance from branch destination address (15-1)]
n
248
CHAPTER 11 INSTRUCTION SET
A
X
L
H
reg1
reg
E
D
C
B
addressing
@rpa
@rpa1
N
IE×××
0
0
IEBT
0
IET0
0
IE0
1
IE2
1
IEEE
0
IET1
1
IET2
User's Manual U10676EJ3V0UM
P
P
P
reg-pair
2
1
0
0
0
0
XA
0
0
1
XA'
0
1
0
HL
0
1
1
HL'
1
0
0
DE
1
0
1
DE'
1
1
0
BC
1
1
1
BC'
P
P
reg-pair
2
1
0
0
XA
0
1
HL
1
0
DE
rp2
1
1
BC
rp'1
rp'
rp
rp1
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