Opcode( "J",		2 ),
	Opcode( "JAL",		3 ),
	// TYPE I - LOAD; format: <instruction> <register> <register>
	Opcode( "LB",		32, LOAD ),
	Opcode( "LH",		33, LOAD ),
	Opcode( "LW",		35, LOAD ),
	Opcode( "LBU",		36, LOAD ),
	Opcode( "LHU",		37, LOAD ),
	Opcode( "LHI",		15, LOAD_LHI ),	// format: LHI <register>, <imm>
	// TYPE I - STORE
	Opcode( "SB",		40, STORE ),
	Opcode( "SH",		41, STORE ),
	Opcode( "SW",		43, STORE ),
	// TYPE I - ALU
	Opcode( "ADDI",		 8, ALU ),
	Opcode( "ADDUI",	 9, ALU ),
	Opcode( "SUBI",		10, ALU ),
	Opcode( "SUBUI",	11, ALU ),
	Opcode( "ANDI",		12, ALU ),
	Opcode( "ORI",		13, ALU ),
	Opcode( "XORI",		14, ALU ),
	Opcode( "SEQI",		24, ALU ),
	Opcode( "SNEI",		25, ALU ),
	Opcode( "SLTI",		26, ALU ),
	Opcode( "SGTI",		27, ALU ),
	Opcode( "SLEI",		28, ALU ),
	Opcode( "SGEI",		29, ALU ),
	Opcode( "SEQUI",	48, ALU ),
	Opcode( "SNEUI",	49, ALU ),
	Opcode( "SLTUI",	50, ALU ),
	Opcode( "SGTUI",	51, ALU ),
	Opcode( "SLEUI",	52, ALU ),
	Opcode( "SGEUI",	53, ALU ),
	Opcode( "SLLI",		54, ALU ),
	Opcode( "SRLI",		55, ALU ),
	Opcode( "SRAI",		56, ALU ),
	// TYPE I - JUMP
	Opcode( "JR",		18, JUMP ),
	Opcode( "JALR",		19, JUMP ),
	// TYPE I - BRANCH
	Opcode( "BEQZ",		4, BRANCH ),
	Opcode( "BNEZ",		5, BRANCH ),