From 8104b939004b8645b888dfc8b204261e469f29ee Mon Sep 17 00:00:00 2001
From: Noah Boorstin <nboorstin@hmc.edu>
Date: Fri, 22 Jan 2021 14:11:17 -0500
Subject: [PATCH] load instructions from file line by line

---
 .gitignore                                |  1 +
 wally-pipelined/src/testbench-busybear.sv | 27 +++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/.gitignore b/.gitignore
index b3169c60..69fb8f93 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 #vsim work files to ignore
 transcript
 vsim.wlf
+wally-pipelined/wlft*
diff --git a/wally-pipelined/src/testbench-busybear.sv b/wally-pipelined/src/testbench-busybear.sv
index bfbbc4dc..5f8880b5 100644
--- a/wally-pipelined/src/testbench-busybear.sv
+++ b/wally-pipelined/src/testbench-busybear.sv
@@ -24,6 +24,33 @@ module testbench_busybear #(parameter XLEN=64, MISA=32'h00000104, ZCSR = 1, ZCOU
     begin
       reset <= 1; # 22; reset <= 0;
     end
+  
+  // read instr trace file
+  integer data_file, scan_file;
+  integer read_data;
+  initial begin
+    data_file = $fopen("busybear-testgen/parsed.txt", "r");
+    if (data_file == 0) begin
+      $display("file couldn't be opened");
+      $stop;
+    end 
+   //   scan_file = $fscanf(data_file, "%x\n", read_data);
+   //   $display("%x", read_data);
+
+   //   scan_file = $fscanf(data_file, "%s\n", read_data);
+   //   $display("%s", read_data);
+   //   //if (!$feof(data_file)) begin
+   //   //  $display(read_data);
+   //   //end
+   // end
+  end
+
+  always @(PCF) begin
+    //$display("%x", PCF);
+    scan_file = $fscanf(data_file, "%x\n", InstrF);
+    //$display("%x", InstrF);
+  end
+
 
   // generate clock to sequence tests
   always