File size: 1,499 Bytes
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`include "mips32.v"
// TEST BENCH TO ADD THREE NOS 10 , 20 AND 25
module mips32_tb1;
// Inputs
reg clk1;
reg clk2;
integer k;
// Instantiate the Unit Under Test (UUT)
mips32 uut (
.clk1(clk1),
.clk2(clk2)
);
initial
begin
// Initialize Inputs
clk1 = 0;
clk2 = 0;
repeat(200)
begin
#5 clk1 = 1; #5 clk1 = 0;
#5 clk2 = 1; #5 clk2 = 0;
end
end
initial
begin
for(k=0 ; k<31 ; k = k + 1)
uut.Reg[k] = k;
uut.Mem[0] = 32'h2801000a; // ADDI R1,R0,10 0010 1000 0000 0001 0000 0000 1010
uut.Mem[1] = 32'h28020014; // ADDI R2,R0,20 0010 1000 0000 0010 0000 0001 0100
uut.Mem[2] = 32'h28030019; // ADDI R3,R0,25 0010 1000 0000 0011 0000 0000 0001 1001
uut.Mem[3] = 32'h0ce77800; // OR R7,R7,R7 -- dummy instr.
uut.Mem[4] = 32'h0ce77800; // OR R7,R7,R7 -- dummy instr.
uut.Mem[5] = 32'h0ce77800; // OR R7,R7,R7 -- dummy instr.
uut.Mem[6] = 32'h00222000; // ADD R4,R1,R2
uut.Mem[7] = 32'h0ce77800; // OR R7,R7,R7 -- dummy instr.
uut.Mem[8] = 32'h00832800; // ADD R5,R4,R3
uut.Mem[9] = 32'hfc000000; // HLT
uut.HALTED = 0;
uut.PC = 0;
uut.TAKEN_BRANCH = 0;
#280
for (k=0; k<6; k= k+1)
$display ("R%1d - %2d", k, uut.Reg[k]);
end
initial
begin
$dumpfile ("mips32_tb1.vcd");
$dumpvars (0, mips32_tb1);
#300 $finish;
end
endmodule
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