bug fixed
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6db5db52e4
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@ -69,9 +69,16 @@ module CPU(
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wire [32 -1:0] Databus3;
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wire [32 -1:0] Databus4;
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wire [5 -1:0] Write_register;
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wire [5 -1:0] Write_register2;
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wire [5 -1:0] Read_register1;
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wire [5 -1:0] Read_register2;
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assign Write_register = (RegDst == 2'b00)? Instruction[20:16]: (RegDst == 2'b01)? Instruction[15:11]:(RegDst == 2'b11)?Instruction[25:21]:5'b11111;
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assign Write_register = (RegDst == 2'b00)? Instruction[20:16]:
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(RegDst == 2'b01)? Instruction[15:11]:
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(RegDst == 2'b11)? Instruction[25:21]:
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5'b11111;
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assign Write_register2 = Instruction[15:11];
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assign Read_register1 = Instruction[25:21];
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assign Read_register2 = (ReadFrom == 1'b1)? Instruction[15:11]: Instruction[20:16];
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RegisterFile register_file1(
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@ -79,10 +86,10 @@ module CPU(
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.clk (clk ),
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.RegWrite (RegWrite ),
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.Regwrite2 (RegWrite2 ),
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.Read_register1 (Instruction[25:21] ),
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.Read_register1 (Read_register1 ),
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.Read_register2 (Read_register2 ),
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.Write_register (Write_register ),
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.Write_register2(Instruction[15:11] ),
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.Write_register2(Write_register2 ),
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.Write_data (Databus3 ),
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.Write_data2 (Databus4 ),
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.Read_data1 (Databus1 ),
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@ -33,13 +33,13 @@ module Control(
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(OpCode == 6'h00 && Funct == 6'h2e)? 1'b1:
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1'b0;
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assign ReadFrom =
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(OpCode == 6'h00 || OpCode == 6'h2e)? 1'b1:
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(OpCode == 6'h00 && Funct == 6'h2e)? 1'b1:
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1'b0;
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assign RegDst =
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(OpCode[5:3] == 3'b001)? 2'b00:
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(OpCode == 6'h23)? 2'b00:
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(OpCode == 6'h03)? 2'b10:
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(OpCode == 6'h2e)? 2'b11:
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(OpCode == 6'h00 && Funct == 6'h2e)? 2'b11:
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2'b01;
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assign MemRead = (OpCode == 6'h23)? 1'b1: 1'b0;
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assign MemWrite = (OpCode == 6'h2b)? 1'b1: 1'b0;
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@ -35,6 +35,7 @@ module InstructionMemory(
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8'd25: Instruction <= 32'hac13002c;
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8'd26: Instruction <= 32'h0810001a;
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// -------- Paste Binary Instruction Above
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default: Instruction <= 32'h00000000;
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endcase
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@ -28,10 +28,12 @@ module RegisterFile(
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if (reset)
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for (i = 1; i < 32; i = i + 1)
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RF_data[i] <= 32'h00000000;
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else if (RegWrite && (Write_register != 5'b00000))
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else
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begin
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if (RegWrite && (Write_register != 5'b00000))
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RF_data[Write_register] <= Write_data;
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else if (Regwrite2 && (Write_register2 != 5'b00000))
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if (Regwrite2 && (Write_register2 != 5'b00000))
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RF_data[Write_register2] <= Write_data2;
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end
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endmodule
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