Graduate

Signed-off-by: Matt Strapp <matt@mattstrapp.net>

1 files changed, 53 insertions, 0 deletions

diff --git a/ee4363/mp1/mp12/test_mipspipe.v b/ee4363/mp1/mp12/test_mipspipe.v
new file mode 100644
index 0000000..24576ec
--- /dev/null
+++ b/ee4363/mp1/mp12/test_mipspipe.v
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+//
+// Test bench for the mipspipe
+// Boram Lee
+//
+  
+`include "mipspipe.v"
+  
+module test_mipspipe;
+  
+  reg clock;
+  reg [3:0] clock_cycle;
+
+// instantiate pipeline module
+  mipspipe u_mipspipe(clock);
+ 
+// initialize clock and cycle counter 
+  initial begin
+    clock = 0;
+    clock_cycle=4'h0;
+    #160  $finish;
+  end
+  
+// 10 unit clock cycle
+  always 
+    #5 clock = ~clock;
+
+  always @(posedge clock)
+     begin
+       clock_cycle=clock_cycle+1;
+     end
+
+
+// display contents of pipeline latches at the end of each clock cycle
+  always @(negedge clock) 
+     begin
+     $display("\n\nclock cycle = %d",clock_cycle," (time = %1.0t)",$time);
+     $display("IF/ID registers\n\t IF/ID.PC+4 = %h, IF/ID.IR = %h \n", u_mipspipe.PC, u_mipspipe.IFIDIR); 
+     $display("ID/EX registers\n\t ID/EX.rs = %d, ID/EX.rt = %d",u_mipspipe.IDEXrs,u_mipspipe.IDEXrt,"\n\t ID/EX.A = %h, ID/EX.B = %h",u_mipspipe.IDEXA,u_mipspipe.IDEXB);
+     $display("\t ID/EX.op = %h\n",u_mipspipe.IDEXop);
+     $display("EX/MEM registers\n\t EX/MEM.rs = %d, EX/MEM.rt = %d",u_mipspipe.IDEXrs,u_mipspipe.IDEXrt,"\n\t EX/MEM.ALUOut = %h, EX/MEM.ALUout = %h",u_mipspipe.EXMEMALUOut,u_mipspipe.EXMEMB);
+     $display("\t EX/MEM.op = %h\n",u_mipspipe.EXMEMop);
+     $display("MEM/WB registers\n\t MEM/WB.rd = %d, MEM/WB.rt = %d",u_mipspipe.MEMWBrd,u_mipspipe.MEMWBrt,"\n\t MEM/WB.value = %h",u_mipspipe.MEMWBValue);
+     $display("\t EX/MEM.op = %h\n",u_mipspipe.MEMWBop);
+     end
+      
+// log to a vcd (variable change dump) file
+   initial
+      begin
+      $dumpfile("test_mipspipe.vcd");
+      $dumpvars;
+   end
+
+endmodule