From 568d0031d216ccdc0617045f6ae65ada11cc61b8 Mon Sep 17 00:00:00 2001
From: Ross Thompson <ross1728@gmail.com>
Date: Sun, 12 Mar 2023 17:15:56 -0500
Subject: [PATCH] Modified the branch log to include markers for the start and
 end of tests with exclusion of warmup period.

---
 testbench/testbench.sv | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/testbench/testbench.sv b/testbench/testbench.sv
index b0af190a..6c9315ee 100644
--- a/testbench/testbench.sv
+++ b/testbench/testbench.sv
@@ -69,6 +69,7 @@ logic [3:0] dummy;
 
   logic 	    DCacheFlushDone, DCacheFlushStart;
   logic riscofTest; 
+  logic StartSample, EndSample;
     
   flopenr #(`XLEN) PCWReg(clk, reset, ~dut.core.ieu.dp.StallW, dut.core.ifu.PCM, PCW);
   flopenr  #(32)   InstrWReg(clk, reset, ~dut.core.ieu.dp.StallW,  dut.core.ifu.InstrM, InstrW);
@@ -405,8 +406,7 @@ logic [3:0] dummy;
     integer HPMCindex;
 	logic 	StartSampleFirst;
 	logic 	StartSampleDelayed;
-	logic 	StartSample;
-	logic 	EndSample, EndSampleFirst, EndSampleDelayed;
+	logic 	EndSampleFirst, EndSampleDelayed;
 	logic [`XLEN-1:0] InitialHPMCOUNTERH[`COUNTERS-1:0];
 
     string  HPMCnames[] = '{"Mcycle",
@@ -549,10 +549,12 @@ logic [3:0] dummy;
         file = $fopen("branch.log", "w");
 	  end
       always @(posedge clk) begin
+		if(StartSample) $fwrite(file, "BEGIN %s\n", memfilename);
 		if(dut.core.ifu.InstrClassM[0] & ~dut.core.StallW & ~dut.core.FlushW & dut.core.InstrValidM) begin
 		  direction = PCSrcM ? "t" : "n";
 		  $fwrite(file, "%h %s\n", dut.core.PCM, direction);
 		end
+		if(EndSample) $fwrite(file, "END %s\n", memfilename);
 	  end
     end
   end