RISC-V-CPU-with-15-instructions

This project is my computer composition principle homework,it contains 15 instructions of RISC-V instruction set.15 instructions are the following:

lui -----rd<-imm||000H

addi -----rd<-(rs1)+SExt(imm)

ori -----rd<-(rs1)|ZExt(imm)

add -----rd<-(rs1)+(imm)

sub -----rd<-(rs1)+(imm)

sll -----rd<-(rs1)+(imm)

slt -----rd<-(rs1)+(imm)

sltu -----rd<-(rs1)+(imm)

sra -----rd<-(rs1)+(imm)

lb -----rd<-SExt(M[(rs1)+SExt(imm)]_8b )

lw -----rd<-M[(rs1)+SExt(imm)]_32b

sw -----M[(rs1)+SExt(imm)]_32b<-(rs2)

beq -----if((rs1)==(rs2))PC<-(PC)+SExt(imm<<1)

blt -----if((rs1)<_unsigned(rs2))PC<-(PC)+SExt(imm<<1)

jal -----rd<-(PC)+4;PC<-(PC)+SExt(imm<<1)

You may find the quartus project in the file "CPU"