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78c261f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | `timescale 1ns / 1ps
`include "mips32.v"
module mips32_tb2;
reg clk1, clk2;
integer k;
mips32 mips (clk1, clk2);
initial
begin
clk1 = 0; clk2 = 0;
repeat (50) // Generating two-phase clock
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)
mips.Reg[k] = k;
mips.Mem[0] = 32'h28010078; // ADDI R1,R0,120
mips.Mem[1] = 32'h0c631800; // OR R3,R3,R3 -- dummy instr.
mips.Mem[2] = 32'h20220000; // LW R2,0(R1)
mips.Mem[3] = 32'h0c631800; // OR R3,R3,R3 -- dummy instr.
mips.Mem[4] = 32'h2842002d; // ADDI R2,R2,45
mips.Mem[5] = 32'h0c631800; // OR R3,R3,R3 -- dummy instr.
mips.Mem[6] = 32'h24220001; // SW R2,1(R1)
mips.Mem[7] = 32'hfc000000; // HLT
mips.Mem[120] = 85;
mips.PC = 0;
mips.HALTED = 0;
mips.TAKEN_BRANCH = 0;
#500 $display ("Mem[120]: %4d \nMem[121]: %4d",
mips.Mem[120], mips.Mem[121]);
end
initial
begin
$dumpfile ("mips32_tb2.vcd");
$dumpvars (0, mips32_tb2);
#600 $finish;
end
endmodule |