Filter
Top Products
CHAPTER 11 INSTRUCTION SET
248 User’s Manual U10676EJ3V0UM
11.3 Opcode of Each Instruction
(1) Description of symbol of opcode
R2 R1 R0 reg
000A
001X
010L
011H
100E
101D
110C
111B
reg
reg1
P2 P1 P0 reg-pair
000XA
001XA'
010HL
011HL'
100DE
101DE'
110BC
111BC'
rp'
rp'1
Q2 Q1 Q0 addressing
000@HL
0 1 0 @HL+
0 1 1 @HL–
100@DE
101@DL
P2 P1 reg-pair
00XA
01HL
10DE
11BC
rp2
rp1
rp
N5 N2 N1 N0 IE×××
0000IEBT
0100IET0
0110IE0
0111IE2
1001IEEE
1100IET1
1101IET2
@rpa
@rpa1
I
n: Immediate data for n4 or n8
Dn: Immediate data for mem
B
n: Immediate data for bit
Nn: Immediate data for n or IE×××
Tn: Immediate data for taddr × 1/2
A
n: Immediate data for [relative address distance from branch destination address (2-16)] – 1
Sn: Immediate data for 1’s complement of [relative address distance from branch destination address (15-1)]