杭电计算机组成原理课程设计-实验八-存储器设计实验

实验内容

1.生成一个RAM_B存储器模块，关联文件中输入64个32位数据，用16进制表示。

2.调用寄存器堆模块和存储器模块，编写一个顶层模块，完成寄存器和存储器之间数据的传送。

3.调用基本ALU 模块、寄存器堆模块和存储器模块，编写一个顶层模块，完成
  lw rt, offset(rs)； //取数：(rs+offset) -> rt
  sw rt, offset(rs)； //存数：rt -> (rs+offset)

 16位的偏移地址offset从input输入，扩展为32位。仿真调试通过

.coe文件内容

memory_initialization_radix=16;
memory_initialization_vector=00000010,00632020,00010fff,00000008,ffff0000,0000ffff,88888888,99999999,aaaaaaaa,bbbbbbbb,12345678,23456789,3456789a,456789ab,56789abc,6789abcd,00000820,00632020,00010fff,20006789,ffff0000,0000ffff,88888888,99999999,aaaaaaaa,bbbbbbbb,12345678,23456789,3456789a,456789ab,56789abc,6789abcd,00000820,00632020,00010fff,20006789,ffff0000,0000ffff,88888888,99999999,aaaaaaaa,bbbbbbbb,12345678,23456789,3456789a,456789ab,56789abc,6789abcd,00000820,00632020,00010fff,20006789,ffff0000,0000ffff,88888888,99999999,aaaaaaaa,bbbbbbbb,12345678,23456789,3456789a,456789ab,56789abc,6789abcd;

如何生成IP核详见ISE-IP核创建教程.

MEM模块代码

module Mem(clk_m,Mem_Write,
				R_Addr_A,R_Addr_B,W_Addr,Write_Reg,rst,clk,
				ALU_OP,offset,
				Mem_Addr,M_R_Data,R_data_A,R_data_B,ALU_F,B);
 input clk_m,Mem_Write;
 input [4:0]R_Addr_A;//A端口读寄存器地址
 input [4:0]R_Addr_B;//B端口读寄存器地址
 input [4:0]W_Addr;//写寄存器地址
 input Write_Reg;
 input [2:0]ALU_OP;
 input rst,clk;
 input [15:0]offset;
 output [31:0]M_R_Data; 
 output [31:0]R_data_A;	
 output [31:0]R_data_B;	
 wire ZF,OF;
 output [31:0]B;

 output [31:0] ALU_F;	
 output [7:0] Mem_Addr;
 
RAM_B Data_RAM (
  .clka(clk_m), // input clka
  .wea(Mem_Write), // input [0 : 0] wea
  .addra(Mem_Addr[7:2]), // input [5 : 0] addra
  .dina(R_data_B), // input [31 : 0] dina
  .douta(M_R_Data) // output [31 : 0] douta
);

 assign B={{16{1'b0}},offset}; //扩展
 
REGS REGS_1(R_data_A,R_data_B,M_R_Data,R_Addr_A,R_Addr_B,W_Addr,Write_Reg,rst,clk);
ALU ALU_1(ALU_OP,R_data_A,B,ALU_F,ZF,OF);
assign Mem_Addr=ALU_F[7:0];

endmodule


module REGS(R_Data_A,R_Data_B,W_Data,R_Addr_A,R_Addr_B,W_Addr,Write_Reg,rst,clk);
	input clk;//写入时钟信号
    input rst;//清零信号
    input Write_Reg;//写控制信号
    input [4:0]R_Addr_A;//A端口读寄存器地址
    input [4:0]R_Addr_B;//B端口读寄存器地址
    input [4:0]W_Addr;//写寄存器地址
    input [31:0]W_Data;//写入数据
	output [31:0]R_Data_A;//A端口读出数据
    output [31:0]R_Data_B;//B端口读出数据
	 
	 integer i;
	 reg [31:0] REG_Files[0:31];  
    initial
        for(i=0;i<32;i=i+1) REG_Files[i]<=0;
    [e-mail](posedge clk or posedge rst)
    begin
        if(rst)
                for(i=0;i<32;i=i+1) REG_Files[i]<=0;
        else
                if(Write_Reg) REG_Files[W_Addr]<=W_Data;
    end
    assign R_Data_A=REG_Files[R_Addr_A];
    assign R_Data_B=REG_Files[R_Addr_B];

endmodule

module ALU(ALU_OP,A,B,F,ZF,OF);
	  input  [2:0] ALU_OP;
	  input  [31:0] A;
	  input  [31:0] B;
	  output [31:0] F;
	  output  ZF;
	  output  OF;
	  reg [31:0] F;
	  reg    C,ZF,OF;
	 [e-mail](*)
	  begin
		C=0;
		OF=0;
		case(ALU_OP)
			3'b000:begin F=A&B; end
			3'b001:begin F=A|B; end
			3'b010:begin F=A^B; end
			3'b011:begin F=~(A|B); end 
			3'b100:begin {C,F}=A+B;OF = A[31]^B[31]^F[31]^C; end 
			3'b101:begin {C,F}=A-B;OF = A[31]^B[31]^F[31]^C; end 
			3'b110:begin F=A<B; end
			3'b111:begin F=B<<A; end
		endcase
		ZF = F==0;
		end
endmodule

测试用例

	always #33 clk=~clk;
	always #23 clk_m=~clk_m;
	
	initial begin
		
    	clk= 0;	clk_m = 0; 
	    ALU_OP = 3'b100;
		rst = 0;
		
		// lw $1,4($0)
	    offset = 16'd4;
		W_Addr = 5'b00001;
		Mem_Write = 0;
		Write_Reg = 0;
		R_Addr_A = 5'b00000;
		R_Addr_B = 5'b00000;
		 #100
		 
		Write_Reg = 1; #100
		
		// lw $2,12($0)
     	offset = 16'd12;
		W_Addr = 5'b00010;
		R_Addr_A = 5'b00000;
		R_Addr_B = 5'b00000;
		Write_Reg = 1; #100
		
		// lw $3,4($2)
     	offset = 16'd8;
		W_Addr = 5'b00011;
		R_Addr_A = 5'b00010;
		R_Addr_B = 5'b00010;
		Write_Reg = 1; #100
		
		//sw $3,24[$0]
		offset = 24'd24;
		R_Addr_A=5'b00000; 
		R_Addr_B=5'b00011;
		Write_Reg = 0;
		Mem_Write = 1;
		#100;
		
		// lw $4,24($0)
		offset = 16'd24;
		W_Addr = 5'b00100;
		R_Addr_A = 5'b00000;
		R_Addr_B = 5'b00000;
		Mem_Write = 0;
		Write_Reg = 1; #100;
	end
      
endmodule

实验结果记录

仿真波形图