实验内容(ISA2新增3条指令)•用硬件描述语言(Verilog)设计MIPSCPU,支持如下指令集•ISA1={ADD/ADDU/SUB/SUBU/SLL/SRL/SRA/SLLV/SRLV/SRAV/AND/OR/XOR/NOR/SLT/SLTU/ADDI/ADDIU/ANDI/ORI/XORI/LUI/SLTI/SLTIU/LB/LBU/LH/LHU/LW/SB/SH/SW/BEQ/BNE/BGEZ/BGTZ/BLEZ/BLTZ/J/JAL/JR/JALR}42条•ISA2={add,sub,addu,subu,addi,ori,lui,and,andi,or,nor,slt,sltu,sll,srl