开发文档

当前进度

仅完成了各基础模块的开发和测试，包括DMem, IMem, ALU, Controller, Registers, ImmGen

待开发

DataPath等

内存大小

关于内存大小的一些计算： $32×16384 = 524288bit = 65536byte$ $(65536)_{10} = (1,0000,0000,0000,0000)_2$ 所以PC寄存器只需要14位即可 Datamemory 同理

模块

module DMem(
    input clk, 
    input MemRead,MemWrite,
    input [31:0] addr, 
    input [31:0] din,
    output[31:0] dout
    );

module IMem(
    input clk,
    input [13:0]addr,
    output [31:0] dout
    );

module ALU(
    input ALUSrc,
    input [1:0] ALUOp,
    input [2:0] funct3,
    input [6:0] funct7,
    input [31:0] ReadData1,
    input [31:0] ReadData2,
    input [31:0] imm32,
    output reg zero,
    output reg [31:0]ALUResult
    );

module Controller(
    input [31:0] inst,
    output reg Branch,
    output reg MemRead,
    output reg MemtoReg,
    output reg [1:0] ALUOp,
    output reg MemWrite,
    output reg ALUSrc,
    output reg RegWrite
    );

module ImmGen(
    input [31:0] instruction, //riscv instruction
    output reg [31:0] decoded //decoded immediate
    );

module Registers(
    input [4:0]Readregister1,
    input [4:0]Readregister2,
    input [4:0]Writeregister,
    input [31:0]Writedata,
    input RegWrite,
    output reg [31:0]Readdata1,
    output reg [31:0]Readdata2
    );