////--------------------------------	SYSCALL	BREAK	ERET	OFA	ES	ET	DS	DT	DP0	DP1
32'b000000000000000000000?????001111	0	0	0	0	?	?	?	?	1	1	// SYNC (NOP)
32'b00000000000???????????????000000	0	0	0	0	0	1	0	0	1	1	// SLL
32'b00000000000???????????????000010	0	0	0	0	0	1	0	0	1	1	// SRL
32'b00000000000???????????????000011	0	0	0	0	0	1	0	0	1	1	// SRA
32'b000000???????????????00000000100	0	0	0	0	1	1	0	0	1	1	// SLLV
32'b000000???????????????00000000110	0	0	0	0	1	1	0	0	1	1	// SRLV
32'b000000???????????????00000000111	0	0	0	0	1	1	0	0	1	1	// SRAV
32'b000000???????????????00000001010	0	0	0	0	1	0	0	1	1	1	// MOVZ
32'b000000???????????????00000001011	0	0	0	0	1	0	0	1	1	1	// MOVN
32'b000000?????000000000000000001000	0	0	0	0	0	0	1	0	1	1	// JR
32'b000000?????00000?????00000001001	0	0	0	0	0	0	1	0	1	1	// JALR
32'b000000????????????????????001100	1	0	0	0	0	0	0	0	1	1	// SYSCALL
32'b000000????????????????????001101	0	1	0	0	0	0	0	0	1	1	// BREAK
32'b0000000000000000?????00000010000	0	0	0	0	0	0	0	0	1	0	// MFHI
32'b000000?????000000000000000010001	0	0	0	0	0	0	0	0	1	0	// MTHI
32'b0000000000000000?????00000010010	0	0	0	0	0	0	0	0	1	0	// MFLO
32'b000000?????000000000000000010011	0	0	0	0	0	0	0	0	1	0	// MTLO
32'b000000??????????0000000000011000	0	0	0	0	1	1	0	0	1	0	// MULT
32'b000000??????????0000000000011001	0	0	0	0	1	1	0	0	1	0	// MULTU
32'b000000??????????0000000000011010	0	0	0	0	1	1	0	0	1	0	// DIV
32'b000000??????????0000000000011011	0	0	0	0	1	1	0	0	1	0	// DIVU
32'b000000???????????????00000100000	0	0	0	1	1	1	0	0	1	1	// ADD
32'b000000???????????????00000100001	0	0	0	0	1	1	0	0	1	1	// ADDU
32'b000000???????????????00000100010	0	0	0	1	1	1	0	0	1	1	// SUB
32'b000000???????????????00000100011	0	0	0	0	1	1	0	0	1	1	// SUBU
32'b000000???????????????00000100100	0	0	0	0	1	1	0	0	1	1	// AND
32'b000000???????????????00000100101	0	0	0	0	1	1	0	0	1	1	// OR
32'b000000???????????????00000100110	0	0	0	0	1	1	0	0	1	1	// XOR
32'b000000???????????????00000100111	0	0	0	0	1	1	0	0	1	1	// NOR
32'b000000???????????????00000101010	0	0	0	0	1	1	0	0	1	1	// SLT
32'b000000???????????????00000101011	0	0	0	0	1	1	0	0	1	1	// SLTU
32'b000000????????????????????110000	0	0	0	0	1	1	0	0	0	1	// TGE
32'b000000????????????????????110001	0	0	0	0	1	1	0	0	0	1	// TGEU
32'b000000????????????????????110010	0	0	0	0	1	1	0	0	0	1	// TLT
32'b000000????????????????????110011	0	0	0	0	1	1	0	0	0	1	// TLTU
32'b000000????????????????????110100	0	0	0	0	1	1	0	0	0	1	// TEQ
32'b000000????????????????????110110	0	0	0	0	1	1	0	0	0	1	// TNE
32'b000001?????00000????????????????	0	0	0	0	0	0	1	0	1	1	// BLTZ
32'b000001?????00001????????????????	0	0	0	0	0	0	1	0	1	1	// BGEZ
32'b000001?????01000????????????????	0	0	0	0	1	0	0	0	0	1	// TGEI
32'b000001?????01001????????????????	0	0	0	0	1	0	0	0	0	1	// TGEIU
32'b000001?????01010????????????????	0	0	0	0	1	0	0	0	0	1	// TLTI
32'b000001?????01011????????????????	0	0	0	0	1	0	0	0	0	1	// TLTIU
32'b000001?????01110????????????????	0	0	0	0	1	0	0	0	0	1	// TNEI
32'b000001?????01100????????????????	0	0	0	0	1	0	0	0	0	1	// TEQI
32'b000001?????10000????????????????	0	0	0	0	0	0	1	0	1	1	// BLTZAL
32'b000001?????10001????????????????	0	0	0	0	0	0	1	0	1	1	// BGEZAL
32'b000010??????????????????????????	0	0	0	0	0	0	0	0	1	1	// J
32'b000011??????????????????????????	0	0	0	0	0	0	0	0	1	1	// JAL
32'b000100??????????????????????????	0	0	0	0	0	0	1	1	1	1	// BEQ
32'b000101??????????????????????????	0	0	0	0	0	0	1	1	1	1	// BNE
32'b000110?????00000????????????????	0	0	0	0	0	0	1	0	1	1	// BLEZ
32'b000111?????00000????????????????	0	0	0	0	0	0	1	0	1	1	// BGTZ
32'b001000??????????????????????????	0	0	0	1	1	0	0	0	1	1	// ADDI
32'b001001??????????????????????????	0	0	0	0	1	0	0	0	1	1	// ADDIU
32'b001010??????????????????????????	0	0	0	0	1	0	0	0	1	1	// SLTI
32'b001011??????????????????????????	0	0	0	0	1	0	0	0	1	1	// SLTIU
32'b001100??????????????????????????	0	0	0	0	1	0	0	0	1	1	// ANDI
32'b001101??????????????????????????	0	0	0	0	1	0	0	0	1	1	// ORI
32'b001110??????????????????????????	0	0	0	0	1	0	0	0	1	1	// XORI
32'b00111100000?????????????????????	0	0	0	0	1	0	0	0	1	1	// LUI
32'b01000000000??????????00000000???	0	0	0	0	0	0	0	0	1	0	// MFC0
32'b01000000100??????????00000000???	0	0	0	0	0	0	0	0	1	0	// MTC0
32'b01000010000000000000000000000001	0	0	0	0	0	0	0	0	0	1	// TLBR
32'b01000010000000000000000000000010	0	0	0	0	0	0	0	0	0	1	// TLBWI
32'b01000010000000000000000000000110	0	0	0	0	0	0	0	0	0	1	// TLBWR
32'b01000010000000000000000000001000	0	0	0	0	0	0	0	0	0	1	// TLBP
32'b01000010000000000000000000011000	0	0	1	0	0	0	0	0	1	1	// ERET
32'b011100??????????0000000000000000	0	0	0	0	1	1	0	0	1	0	// MADD
32'b011100??????????0000000000000001	0	0	0	0	1	1	0	0	1	0	// MADDU
32'b011100??????????0000000000000100	0	0	0	0	1	1	0	0	1	0	// MSUB
32'b011100??????????0000000000000101	0	0	0	0	1	1	0	0	1	0	// MSUBU
32'b011100???????????????00000000010	0	0	0	0	1	1	0	0	1	0	// MUL
32'b100000??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LB
32'b100001??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LH
32'b100010??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LWL
32'b100011??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LW
32'b100100??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LBU
32'b100101??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LHU
32'b100110??????????????????????????	0	0	0	0	1	0	0	0	0	1	// LWR
32'b101000??????????????????????????	0	0	0	0	1	0	0	0	0	1	// SB
32'b101001??????????????????????????	0	0	0	0	1	0	0	0	0	1	// SH
32'b101010??????????????????????????	0	0	0	0	1	0	0	0	0	1	// SWL
32'b101011??????????????????????????	0	0	0	0	1	0	0	0	0	1	// SW
32'b101110??????????????????????????	0	0	0	0	1	0	0	0	0	1	// SWR
32'b101111??????????????????????????	0	0	0	0	1	0	0	0	0	1	// CACHE
32'b110011??????????????????????????	0	0	0	0	0	0	0	0	1	1	// PREF (NOP)