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ClF3 2024-06-30 23:01:11 +08:00
parent 1be7b4b14e
commit 6db5db52e4
6 changed files with 58 additions and 17 deletions
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15
sources_1/imports/single-cycle/ALU.v
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@ -4,11 +4,12 @@ module ALU(
input [32 -1:0] in2 ,
input [5 -1:0] ALUCtl ,
input Sign ,
output reg [32 -1:0] out ,
output reg [32 -1:0] out, out2,
output zero
);
reg signed [7:0] in11,in12,in13,in14,in21,in22,in23,in24;
reg [31:0] MACout;
reg signed [31:0] in1s, in2s;
// zero means whether the output is zero or not
assign zero = (out == 0);
@ -51,10 +52,20 @@ module ALU(
5'b11001: out <= ({{32{in2[31]}}, in2} >> in1[4:0]);
5'b11010: out <= in1 * in2; // mul
5'b11011: out <= MACout;
5'b11100: out <= in1s>0?in1s:0;
default: out <= 32'h00000000;
endcase
always @(*)
begin
in1s <= in1;
in2s <= in2;
end
always @(*)
case(ALUCtl)
5'b11100: out2 <= in2s>0?in2s:0;
default: out2 <= 32'h00000000;
endcase
endmodule

2
sources_1/imports/single-cycle/ALUControl.v
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@ -20,6 +20,7 @@ module ALUControl(
parameter aluSRA = 5'b11001;
parameter aluMUL = 5'b11010; //mul
parameter aluMAC = 5'b11011;
parameter aluRELU= 5'b11100;
// Sign means whether the ALU treats the input as a signed number or an unsigned number
assign Sign = (ALUOp[2:0] == 3'b010)? ~Funct[0]: ~ALUOp[3];
@ -42,6 +43,7 @@ module ALUControl(
6'b10_1010: aluFunct <= aluSLT;
6'b10_1011: aluFunct <= aluSLT;
6'b10_1101: aluFunct <= aluMAC;
6'b10_1110: aluFunct <= aluRELU;
default: aluFunct <= aluADD;
endcase

15
sources_1/imports/single-cycle/CPU.v
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@ -29,6 +29,7 @@ module CPU(
);
// Control
wire ReadFrom ;
wire [2 -1:0] RegDst ;
wire [2 -1:0] PCSrc ;
wire Branch ;
@ -41,6 +42,7 @@ module CPU(
wire ExtOp ;
wire LuOp ;
wire RegWrite ;
wire RegWrite2 ;
Control control1(
.OpCode (Instruction[31:26] ),
@ -48,6 +50,8 @@ module CPU(
.PCSrc (PCSrc ),
.Branch (Branch ),
.RegWrite (RegWrite ),
.RegWrite2 (RegWrite2 ),
.ReadFrom (ReadFrom ),
.RegDst (RegDst ),
.MemRead (MemRead ),
.MemWrite (MemWrite ),
@ -63,18 +67,24 @@ module CPU(
wire [32 -1:0] Databus1;
wire [32 -1:0] Databus2;
wire [32 -1:0] Databus3;
wire [32 -1:0] Databus4;
wire [5 -1:0] Write_register;
wire [5 -1:0] Read_register2;
assign Write_register = (RegDst == 2'b00)? Instruction[20:16]: (RegDst == 2'b01)? Instruction[15:11]: 5'b11111;
assign Write_register = (RegDst == 2'b00)? Instruction[20:16]: (RegDst == 2'b01)? Instruction[15:11]:(RegDst == 2'b11)?Instruction[25:21]:5'b11111;
assign Read_register2 = (ReadFrom == 1'b1)? Instruction[15:11]: Instruction[20:16];
RegisterFile register_file1(
.reset (reset ),
.clk (clk ),
.RegWrite (RegWrite ),
.Regwrite2 (RegWrite2 ),
.Read_register1 (Instruction[25:21] ),
.Read_register2 (Instruction[20:16] ),
.Read_register2 (Read_register2 ),
.Write_register (Write_register ),
.Write_register2(Instruction[15:11] ),
.Write_data (Databus3 ),
.Write_data2 (Databus4 ),
.Read_data1 (Databus1 ),
.Read_data2 (Databus2 )
);
@ -112,6 +122,7 @@ module CPU(
.ALUCtl (ALUCtl ),
.Sign (Sign ),
.out (ALU_out ),
.out2 (Databus4 ),
.zero (Zero )
);

9
sources_1/imports/single-cycle/Control.v
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@ -5,6 +5,8 @@ module Control(
output [2 -1:0] PCSrc ,
output Branch ,
output RegWrite ,
output RegWrite2 ,
output ReadFrom ,
output [2 -1:0] RegDst ,
output MemRead ,
output MemWrite ,
@ -27,10 +29,17 @@ module Control(
(OpCode == 6'h2b || OpCode == 6'h04 || OpCode == 6'h02)? 1'b0:
(OpCode == 6'h00 && Funct == 6'h08)? 1'b0:
1'b1;
assign RegWrite2 =
(OpCode == 6'h00 && Funct == 6'h2e)? 1'b1:
1'b0;
assign ReadFrom =
(OpCode == 6'h00 || OpCode == 6'h2e)? 1'b1:
1'b0;
assign RegDst =
(OpCode[5:3] == 3'b001)? 2'b00:
(OpCode == 6'h23)? 2'b00:
(OpCode == 6'h03)? 2'b10:
(OpCode == 6'h2e)? 2'b11:
2'b01;
assign MemRead = (OpCode == 6'h23)? 1'b1: 1'b0;
assign MemWrite = (OpCode == 6'h2b)? 1'b1: 1'b0;

25
sources_1/imports/single-cycle/InstructionMemory.v
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@ -21,17 +21,20 @@ module InstructionMemory(
8'd11: Instruction <= 32'h010e882d;
8'd12: Instruction <= 32'h012f202d;
8'd13: Instruction <= 32'h02248820;
8'd14: Instruction <= 32'h014c902d;
8'd15: Instruction <= 32'h016d202d;
8'd16: Instruction <= 32'h02449020;
8'd17: Instruction <= 32'h014e982d;
8'd18: Instruction <= 32'h016f202d;
8'd19: Instruction <= 32'h02649820;
8'd20: Instruction <= 32'hac100020;
8'd21: Instruction <= 32'hac110024;
8'd22: Instruction <= 32'hac120028;
8'd23: Instruction <= 32'hac13002c;
8'd24: Instruction <= 32'h08100018;
8'd14: Instruction <= 32'h0200882e;
8'd15: Instruction <= 32'h014c902d;
8'd16: Instruction <= 32'h016d202d;
8'd17: Instruction <= 32'h02449020;
8'd18: Instruction <= 32'h014e982d;
8'd19: Instruction <= 32'h016f202d;
8'd20: Instruction <= 32'h02649820;
8'd21: Instruction <= 32'h0240982e;
8'd22: Instruction <= 32'hac100020;
8'd23: Instruction <= 32'hac110024;
8'd24: Instruction <= 32'hac120028;
8'd25: Instruction <= 32'hac13002c;
8'd26: Instruction <= 32'h0810001a;
// -------- Paste Binary Instruction Above
default: Instruction <= 32'h00000000;
endcase

5
sources_1/imports/single-cycle/RegisterFile.v
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@ -3,10 +3,13 @@ module RegisterFile(
input reset ,
input clk ,
input RegWrite ,
input Regwrite2 ,
input [5 -1:0] Read_register1 ,
input [5 -1:0] Read_register2 ,
input [5 -1:0] Write_register ,
input [5 -1:0] Write_register2,
input [32 -1:0] Write_data ,
input [32 -1:0] Write_data2 ,
output [32 -1:0] Read_data1 ,
output [32 -1:0] Read_data2
);
@ -27,6 +30,8 @@ module RegisterFile(
RF_data[i] <= 32'h00000000;
else if (RegWrite && (Write_register != 5'b00000))
RF_data[Write_register] <= Write_data;
else if (Regwrite2 && (Write_register2 != 5'b00000))
RF_data[Write_register2] <= Write_data2;
endmodule