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CHAPTER 9. INSTRUCTION SET
R1R0reg
00A
01X
10L
11H
9.3 OPERATION CODE OF EACH INSTRUCTION
(1) Description of operation code symbols
P1reg-pair
0XA
1HL
N2N1N0IE×××
0 0 0 IEBT
1 0 1 IECSI
110 IE0
111 IE2
In : Immediate data for n4, n8
Dn : Immediate data for mem
Bn : Immediate data for bit
Nn : Immediate data for n, IE×××
An : Immediate data for [relative address distance with branch address (2 to 16)] - 1
Sn : Immediate data for one’s complement of [relative address distance with branch address (15 to 1)]
(2) Bit manipulation addressing operation code
bit-addr of the second byte of the operation code of an instruction with fmem. bit at the operands is shown below.
bit-addr Accessible bits
1 0 B1 B0 F3 F2 F1 F0 Operable bits of FB0H to FBFH
1 1 B1 B0 F3 F2 F1 F0 Operable bits of FF0H to FFFH
Bn : Immediate data for bit address (0 to 3) described at bit
Fn : Immediate data for low-order four bits of address described at fmem
reg
reg 1
rp