9 {
"add", 0b00000000000110011}, {
"sub", 0b01000000000110011},
10 {
"xor", 0b00000001000110011}, {
"or", 0b00000001100110011},
11 {
"and", 0b00000001110110011}, {
"sll", 0b00000000010110011},
12 {
"srl", 0b00000001010110011}, {
"sra", 0b01000001010110011},
13 {
"slt", 0b00000000100110011}, {
"sltu", 0b00000000110110011},
14 {
"mul", 0b00000010000110011}, {
"mulh", 0b00000010010110011},
15 {
"mulhu", 0b00000010110110011}, {
"mulhsu", 0b00000010100110011},
16 {
"div", 0b00000011000110011}, {
"divu", 0b00000011010110011},
17 {
"rem", 0b00000011100110011}, {
"remu", 0b00000011110110011}};
20 {
"addi", 0b0000010011}, {
"xori", 0b1000010011},
21 {
"ori", 0b1100010011}, {
"andi", 0b1110010011},
22 {
"slli", 0b00000000010010011}, {
"srli", 0b00000001010010011},
23 {
"srai", 0b01000001010010011}, {
"slti", 0b0100010011},
24 {
"sltiu", 0b0110010011}, {
"lb", 0b0000000011},
25 {
"lh", 0b0010000011}, {
"lw", 0b0100000011},
26 {
"lbu", 0b1000000011}, {
"lhu", 0b1010000011},
27 {
"jalr", 0b0001100111}};