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RegisterFileSimulation.v
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RegisterFileSimulation.v
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Mustafa Bozdoğan, Enes Saçak
//////////////////////////////////////////////////////////////////////////////////
module RegisterFileSimulation();
reg[15:0] I;
reg [2:0] OutASel, OutBSel, FunSel;
reg [3:0] RegSel, ScrSel;
wire[15:0] OutA, OutB;
integer test_no;
CrystalOscillator clk();
RegisterFile RF(.I(I), .OutASel(OutASel), .OutBSel(OutBSel),
.FunSel(FunSel), .RegSel(RegSel), .ScrSel(ScrSel),
.Clock(clk.clock), .OutA(OutA), .OutB(OutB));
FileOperation F();
task ClearRegisters;
begin
RF.R1.Q = 16'h0;
RF.R2.Q = 16'h0;
RF.R3.Q = 16'h0;
RF.R4.Q = 16'h0;
RF.S1.Q = 16'h0;
RF.S2.Q = 16'h0;
RF.S3.Q = 16'h0;
RF.S4.Q = 16'h0;
end
endtask
task SetRegisters;
input [15:0] value;
begin
RF.R1.Q = value;
RF.R2.Q = value;
RF.R3.Q = value;
RF.R4.Q = value;
RF.S1.Q = value;
RF.S2.Q = value;
RF.S3.Q = value;
RF.S4.Q = value;
end
endtask
task DisableAll;
begin
RegSel = 4'b1111;
ScrSel = 4'b1111;
end
endtask
initial begin
F.SimulationName ="RegisterFile";
F.InitializeSimulation(0);
clk.clock = 0;
//Test 1
test_no = 1;
DisableAll();
ClearRegisters();
RF.R1.Q = 16'h1234;
RF.R2.Q = 16'h5678;
OutASel = 3'b000;
OutBSel = 3'b001;
#5;
F.CheckValues(RF.OutA,16'h1234, test_no, "OutA");
F.CheckValues(RF.OutB,16'h5678, test_no, "OutB");
//Test 2
test_no = 2;
DisableAll();
SetRegisters(16'h1234);
RegSel = 4'b0101;
ScrSel = 4'b1010;
FunSel = 3'b010;
I = 16'h3548;
OutASel = 3'b001;
OutBSel = 3'b101;
clk.Clock();
F.CheckValues(RF.OutA,16'h1234, test_no, "OutA");
F.CheckValues(RF.OutB,16'h3548, test_no, "OutB");
F.FinishSimulation();
end
endmodule