From aabebdb59f7de888fc1eee183c4666a0a4928bb8 Mon Sep 17 00:00:00 2001
From: David Harris <david_harris@hmc.edu>
Date: Thu, 8 Apr 2021 13:40:16 -0400
Subject: [PATCH 1/2] fixed sim-wally-32ic

---
 wally-pipelined/regression/sim-wally-batch-rv32ic | 3 +++
 wally-pipelined/regression/sim-wally-rv32ic       | 4 +---
 wally-pipelined/testbench/testbench-imperas.sv    | 6 +++---
 3 files changed, 7 insertions(+), 6 deletions(-)
 create mode 100755 wally-pipelined/regression/sim-wally-batch-rv32ic

diff --git a/wally-pipelined/regression/sim-wally-batch-rv32ic b/wally-pipelined/regression/sim-wally-batch-rv32ic
new file mode 100755
index 000000000..b69fb3172
--- /dev/null
+++ b/wally-pipelined/regression/sim-wally-batch-rv32ic
@@ -0,0 +1,3 @@
+vsim -c <<!
+do wally-pipelined-batch.do ../config/rv32ic rv32ic
+!
diff --git a/wally-pipelined/regression/sim-wally-rv32ic b/wally-pipelined/regression/sim-wally-rv32ic
index b69fb3172..279f6ab71 100755
--- a/wally-pipelined/regression/sim-wally-rv32ic
+++ b/wally-pipelined/regression/sim-wally-rv32ic
@@ -1,3 +1 @@
-vsim -c <<!
-do wally-pipelined-batch.do ../config/rv32ic rv32ic
-!
+vsim -do "do wally-pipelined.do ../config/rv32ic"
\ No newline at end of file
diff --git a/wally-pipelined/testbench/testbench-imperas.sv b/wally-pipelined/testbench/testbench-imperas.sv
index b55eb53e5..2eece874c 100644
--- a/wally-pipelined/testbench/testbench-imperas.sv
+++ b/wally-pipelined/testbench/testbench-imperas.sv
@@ -351,8 +351,8 @@ string tests32i[] = {
         if (`C_SUPPORTED) tests = {tests, tests64ic};
         else              tests = {tests, tests64iNOc};
         if (`M_SUPPORTED) tests = {tests, tests64m};
-        if (`F_SUPPORTED) tests = {tests64f, tests};
-        if (`D_SUPPORTED) tests = {tests64d, tests};
+//        if (`F_SUPPORTED) tests = {tests64f, tests};
+//        if (`D_SUPPORTED) tests = {tests64d, tests};
         if (`A_SUPPORTED) tests = {tests, tests64a};
       end
  //     tests = {tests64a, tests};
@@ -362,7 +362,7 @@ string tests32i[] = {
       if (`C_SUPPORTED % 2 == 1) tests = {tests, tests32ic};    
       else                       tests = {tests, tests32iNOc};
       if (`M_SUPPORTED % 2 == 1) tests = {tests, tests32m};
-      if (`F_SUPPORTED) tests = {tests32f, tests};
+//      if (`F_SUPPORTED) tests = {tests32f, tests};
       if (`A_SUPPORTED) tests = {tests, tests32a};
     end
   string signame, memfilename;

From 2a7dd374411463489767b78af5e692b8644862c0 Mon Sep 17 00:00:00 2001
From: David Harris <david_harris@hmc.edu>
Date: Thu, 8 Apr 2021 14:04:01 -0400
Subject: [PATCH 2/2] restored testbench-imperas.sv

---
 .../testbench/testbench-imperas.sv            | 700 ++++++++++++++++++
 1 file changed, 700 insertions(+)
 create mode 100644 wally-pipelined/testbench/testbench-imperas.sv

diff --git a/wally-pipelined/testbench/testbench-imperas.sv b/wally-pipelined/testbench/testbench-imperas.sv
new file mode 100644
index 000000000..0cc7845a5
--- /dev/null
+++ b/wally-pipelined/testbench/testbench-imperas.sv
@@ -0,0 +1,700 @@
+///////////////////////////////////////////
+// testbench-imperas.sv
+//
+// Written: David_Harris@hmc.edu 9 January 2021
+// Modified: 
+//
+// Purpose: Wally Testbench and helper modules
+//          Applies test programs from the Imperas suite
+// 
+// A component of the Wally configurable RISC-V project.
+// 
+// Copyright (C) 2021 Harvey Mudd College & Oklahoma State University
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, 
+// modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software 
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+// BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT 
+// OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+///////////////////////////////////////////
+
+`include "wally-config.vh"
+
+module testbench();
+  parameter DEBUG = 0;
+  parameter TESTSBP = 0;
+  
+  logic        clk;
+  logic        reset;
+
+  int test, i, errors, totalerrors;
+  logic [31:0] sig32[0:10000];
+  logic [`XLEN-1:0] signature[0:10000];
+  logic [`XLEN-1:0] testadr;
+  string InstrFName, InstrDName, InstrEName, InstrMName, InstrWName;
+  logic [31:0] InstrW;
+  logic [`XLEN-1:0] meminit;
+
+  string tests32mmu[] = '{
+                      "rv32mmu/WALLY-VIRTUALMEMORY", "5000"
+  };
+
+  string tests64mmu[] = '{
+                      "rv64mmu/WALLY-VIRTUALMEMORY", "5000"
+  };
+
+  string tests64f[] = '{
+                    "rv64f/I-FADD-S-01", "2000",
+                    "rv64f/I-FCLASS-S-01", "2000"
+  };
+
+  string tests64a[] = '{
+                    "rv64a/WALLY-AMO", "2110",
+                    "rv64a/WALLY-LRSC", "2110"
+  };
+  string tests64m[] = '{
+                    "rv64m/I-MUL-01", "3000",
+                    "rv64m/I-MULH-01", "3000",
+                    "rv64m/I-MULHSU-01", "3000",
+                    "rv64m/I-MULHU-01", "3000",
+                    "rv64m/I-MULW-01", "3000"
+//                    "rv64m/I-DIV-01", "3000",
+//                    "rv64m/I-DIVU-01", "3000"
+ //                   "rv64m/I-DIVUW-01", "3000",
+ //                   "rv64m/I-DIVW-01", "3000",
+//                    "rv64m/I-REM-01", "3000",
+//                    "rv64m/I-REMU-01", "3000",
+//                    "rv64m/I-REMUW-01", "3000",
+//                    "rv64m/I-REMW-01", "3000"
+  };
+  string tests64ic[] = '{
+                     "rv64ic/I-C-ADD-01", "3000",
+                     "rv64ic/I-C-ADDI-01", "3000",
+                     "rv64ic/I-C-ADDIW-01", "3000",
+                     "rv64ic/I-C-ADDW-01", "3000",
+                     "rv64ic/I-C-AND-01", "3000",
+                     "rv64ic/I-C-ANDI-01", "3000",
+                     "rv64ic/I-C-BEQZ-01", "3000",
+                     "rv64ic/I-C-BNEZ-01", "3000",
+                     "rv64ic/I-C-EBREAK-01", "2000",
+                     "rv64ic/I-C-J-01", "3000",
+                     "rv64ic/I-C-JALR-01", "4000",
+                     "rv64ic/I-C-JR-01", "4000",
+                     "rv64ic/I-C-LD-01", "3420",
+                     "rv64ic/I-C-LDSP-01", "3420",
+                     "rv64ic/I-C-LI-01", "3000",
+                     "rv64ic/I-C-LUI-01", "2000",
+                     "rv64ic/I-C-LW-01", "3110",
+                     "rv64ic/I-C-LWSP-01", "3110",
+                     "rv64ic/I-C-MV-01", "3000",
+                     "rv64ic/I-C-NOP-01", "2000",
+                     "rv64ic/I-C-OR-01", "3000",
+                     "rv64ic/I-C-SD-01", "3000",
+                     "rv64ic/I-C-SDSP-01", "3000",
+                     "rv64ic/I-C-SLLI-01", "3000",
+                     "rv64ic/I-C-SRAI-01", "3000",
+                     "rv64ic/I-C-SRLI-01", "3000",
+                     "rv64ic/I-C-SUB-01", "3000",
+                     "rv64ic/I-C-SUBW-01", "3000",
+                     "rv64ic/I-C-SW-01", "3000",
+                     "rv64ic/I-C-SWSP-01", "3000",
+                     "rv64ic/I-C-XOR-01", "3000"
+  };
+string tests64iNOc[] = {
+                     "rv64i/I-MISALIGN_JMP-01","2000"
+  };
+ string tests64i[] = '{                 
+                     "rv64i/I-ADD-01", "3000",
+                     "rv64i/I-ADDI-01", "3000",
+                     "rv64i/I-ADDIW-01", "3000",
+                     "rv64i/I-ADDW-01", "3000",
+                     "rv64i/I-AND-01", "3000",
+                     "rv64i/I-ANDI-01", "3000",
+                     "rv64i/I-AUIPC-01", "3000",
+                     "rv64i/I-BEQ-01", "4000",
+                     "rv64i/I-BGE-01", "4000",
+                     "rv64i/I-BGEU-01", "4000",
+                     "rv64i/I-BLT-01", "4000",
+                     "rv64i/I-BLTU-01", "4000",
+                     "rv64i/I-BNE-01", "4000",
+                     "rv64i/I-DELAY_SLOTS-01", "2000",
+                     "rv64i/I-EBREAK-01", "2000",
+                     "rv64i/I-ECALL-01", "2000",
+                     "rv64i/I-ENDIANESS-01", "2010",
+                     "rv64i/I-IO-01", "2050",
+                     "rv64i/I-JAL-01", "3000",
+                     "rv64i/I-JALR-01", "4000",
+                     "rv64i/I-LB-01", "4020",
+                     "rv64i/I-LBU-01", "4020",
+                     "rv64i/I-LD-01", "4420",
+                     "rv64i/I-LH-01", "4050",
+                     "rv64i/I-LHU-01", "4050",
+                     "rv64i/I-LUI-01", "2000",
+                     "rv64i/I-LW-01", "4110",
+                     "rv64i/I-LWU-01", "4110", 
+                     "rv64i/I-MISALIGN_LDST-01", "2010",
+                     "rv64i/I-NOP-01", "2000",
+                     "rv64i/I-OR-01", "3000",
+                     "rv64i/I-ORI-01", "3000",
+                     "rv64i/I-RF_size-01", "2000",
+                     "rv64i/I-RF_width-01", "2000",
+                     "rv64i/I-RF_x0-01", "2010",
+                     "rv64i/I-SB-01", "4000",
+                     "rv64i/I-SD-01", "4000",
+                     "rv64i/I-SH-01", "4000",
+                     "rv64i/I-SLL-01", "3000",
+                     "rv64i/I-SLLI-01", "3000",
+                     "rv64i/I-SLLIW-01", "3000",
+                     "rv64i/I-SLLW-01", "3000",
+                     "rv64i/I-SLT-01", "3000",
+                     "rv64i/I-SLTI-01", "3000",
+                     "rv64i/I-SLTIU-01", "3000",
+                     "rv64i/I-SLTU-01", "3000",
+                     "rv64i/I-SRA-01", "3000",
+                     "rv64i/I-SRAI-01", "3000",
+                     "rv64i/I-SRAIW-01", "3000",
+                     "rv64i/I-SRAW-01", "3000",
+                     "rv64i/I-SRL-01", "3000",
+                     "rv64i/I-SRLI-01", "3000",
+                     "rv64i/I-SRLIW-01", "3000",
+                     "rv64i/I-SRLW-01", "3000",
+                     "rv64i/I-SUB-01", "3000",
+                     "rv64i/I-SUBW-01", "3000",
+                     "rv64i/I-SW-01", "4000",
+                     "rv64i/I-XOR-01", "3000",
+                     "rv64i/I-XORI-01", "3000",
+                     "rv64i/WALLY-ADD", "4000",
+                     "rv64i/WALLY-SUB", "4000",
+                     "rv64i/WALLY-ADDI", "3000",
+                     "rv64i/WALLY-ANDI", "3000",
+                     "rv64i/WALLY-ORI", "3000",
+                     "rv64i/WALLY-XORI", "3000",
+                     "rv64i/WALLY-SLTI", "3000",
+                     "rv64i/WALLY-SLTIU", "3000",
+                     "rv64i/WALLY-SLLI", "3000",
+                     "rv64i/WALLY-SRLI", "3000",
+                     "rv64i/WALLY-SRAI", "3000",
+                     "rv64i/WALLY-LOAD", "11bf0",
+                     "rv64i/WALLY-JAL", "4000",
+                     "rv64i/WALLY-JALR", "3000",
+                     "rv64i/WALLY-STORE", "3000",
+                     "rv64i/WALLY-ADDIW", "3000",
+                     "rv64i/WALLY-SLLIW", "3000",
+                     "rv64i/WALLY-SRLIW", "3000",
+                     "rv64i/WALLY-SRAIW", "3000",
+                     "rv64i/WALLY-ADDW", "4000",
+                     "rv64i/WALLY-SUBW", "4000",
+                     "rv64i/WALLY-SLLW", "3000",
+                     "rv64i/WALLY-SRLW", "3000",
+                     "rv64i/WALLY-SRAW", "3000",
+                     "rv64i/WALLY-BEQ" ,"5000",
+                     "rv64i/WALLY-BNE", "5000 ",
+                      "rv64i/WALLY-BLTU", "5000 ",
+                      "rv64i/WALLY-BLT", "5000",
+                       "rv64i/WALLY-BGE", "5000 ",
+                      "rv64i/WALLY-BGEU", "5000 ",
+                      "rv64i/WALLY-CSRRW", "4000",
+                      "rv64i/WALLY-CSRRS", "4000",
+                      "rv64i/WALLY-CSRRC", "5000",
+                      "rv64i/WALLY-CSRRWI", "4000",
+                      "rv64i/WALLY-CSRRSI", "4000",
+                      "rv64i/WALLY-CSRRCI", "4000"
+
+  };
+  string tests32a[] = '{
+                    "rv64a/WALLY-AMO", "2110",
+                    "rv64a/WALLY-LRSC", "2110"
+  };
+  string tests32m[] = '{
+                    "rv32m/I-MUL-01", "2000",
+                    "rv32m/I-MULH-01", "2000",
+                    "rv32m/I-MULHSU-01", "2000",
+                    "rv32m/I-MULHU-01", "2000"
+//                    "rv32m/I-DIV-01", "2000",
+//                    "rv32m/I-DIVU-01", "2000",
+//                    "rv32m/I-REM-01", "2000",
+//                    "rv32m/I-REMU-01", "2000"
+  };
+string tests32ic[] = '{
+                     "rv32ic/I-C-ADD-01", "2000",
+                     "rv32ic/I-C-ADDI-01", "2000",
+                     "rv32ic/I-C-AND-01", "2000",
+                     "rv32ic/I-C-ANDI-01", "2000",
+                     "rv32ic/I-C-BEQZ-01", "2000",
+                     "rv32ic/I-C-BNEZ-01", "2000",
+                     "rv32ic/I-C-EBREAK-01", "2000",
+                     "rv32ic/I-C-J-01", "2000",
+                     "rv32ic/I-C-JALR-01", "3000",
+                     "rv32ic/I-C-JR-01", "3000",
+                     "rv32ic/I-C-LI-01", "2000",
+                     "rv32ic/I-C-LUI-01", "2000",
+                     "rv32ic/I-C-LW-01", "2110",
+                     "rv32ic/I-C-LWSP-01", "2110",
+                     "rv32ic/I-C-MV-01", "2000",
+                     "rv32ic/I-C-NOP-01", "2000",
+                     "rv32ic/I-C-OR-01", "2000",
+                     "rv32ic/I-C-SLLI-01", "2000",
+                     "rv32ic/I-C-SRAI-01", "2000",
+                     "rv32ic/I-C-SRLI-01", "2000",
+                     "rv32ic/I-C-SUB-01", "2000",
+                     "rv32ic/I-C-SW-01", "2000",
+                     "rv32ic/I-C-SWSP-01", "2000",
+                     "rv32ic/I-C-XOR-01", "2000" 
+};
+string tests32iNOc[] = {
+                     "rv32i/I-MISALIGN_JMP-01","2000"
+};
+string tests32i[] = {
+                     "rv32i/I-ADD-01", "2000",
+                     "rv32i/I-ADDI-01","2000",
+                     "rv32i/I-AND-01","2000",
+                     "rv32i/I-ANDI-01","2000",
+                     "rv32i/I-AUIPC-01","2000",
+                     "rv32i/I-BEQ-01","3000",
+                     "rv32i/I-BGE-01","3000",
+                     "rv32i/I-BGEU-01","3000",
+                     "rv32i/I-BLT-01","3000",
+                     "rv32i/I-BLTU-01","3000",
+                     "rv32i/I-BNE-01","3000",
+                     "rv32i/I-DELAY_SLOTS-01","2000",
+                     "rv32i/I-EBREAK-01","2000",
+                     "rv32i/I-ECALL-01","2000",
+                     "rv32i/I-ENDIANESS-01","2010",
+                     "rv32i/I-IO-01","2030",
+                     "rv32i/I-JAL-01","3000",
+                     "rv32i/I-JALR-01","3000",
+                     "rv32i/I-LB-01","3020",
+                     "rv32i/I-LBU-01","3020",
+                     "rv32i/I-LH-01","3050",
+                     "rv32i/I-LHU-01","3050",
+                     "rv32i/I-LUI-01","2000",
+                     "rv32i/I-LW-01","3110",
+                     "rv32i/I-MISALIGN_LDST-01","2010",
+                     "rv32i/I-NOP-01","2000",
+                     "rv32i/I-OR-01","2000",
+                     "rv32i/I-ORI-01","2000",
+                     "rv32i/I-RF_size-01","2000",
+                     "rv32i/I-RF_width-01","2000",
+                     "rv32i/I-RF_x0-01","2010",
+                     "rv32i/I-SB-01","3000",
+                     "rv32i/I-SH-01","3000",
+                     "rv32i/I-SLL-01","2000",
+                     "rv32i/I-SLLI-01","2000",
+                     "rv32i/I-SLT-01","2000",
+                     "rv32i/I-SLTI-01","2000",
+                     "rv32i/I-SLTIU-01","2000",
+                     "rv32i/I-SLTU-01","2000",
+                     "rv32i/I-SRA-01","2000",
+                     "rv32i/I-SRAI-01","2000",
+                     "rv32i/I-SRL-01","2000",
+                     "rv32i/I-SRLI-01","2000",
+                     "rv32i/I-SUB-01","2000",
+                     "rv32i/I-SW-01","3000",
+                     "rv32i/I-XOR-01","2000",
+                     "rv32i/I-XORI-01","2000",
+                     "rv32i/WALLY-ADD", "3000",
+                     "rv32i/WALLY-SUB", "3000",
+                     "rv32i/WALLY-ADDI", "2000",
+                     "rv32i/WALLY-ANDI", "2000",
+                     "rv32i/WALLY-ORI", "2000",
+                     "rv32i/WALLY-XORI", "2000",
+                     "rv32i/WALLY-SLTI", "2000",
+                     "rv32i/WALLY-SLTIU", "2000",
+                     "rv32i/WALLY-SLLI", "2000",
+                     "rv32i/WALLY-SRLI", "2000",
+                     "rv32i/WALLY-SRAI", "2000",
+                     "rv32i/WALLY-LOAD", "11c00",
+                     "rv32i/WALLY-SUB", "3000",
+                     "rv32i/WALLY-STORE", "2000",
+                     "rv32i/WALLY-JAL", "3000",
+                     "rv32i/WALLY-JALR", "2000",
+                     "rv32i/WALLY-BEQ" ,"4000",
+                     "rv32i/WALLY-BNE", "4000 ",
+                      "rv32i/WALLY-BLTU", "4000 ",
+                      "rv32i/WALLY-BLT", "4000",
+                       "rv32i/WALLY-BGE", "4000 ",
+                      "rv32i/WALLY-BGEU", "4000 ",
+                      "rv32i/WALLY-CSRRW", "3000",
+                      "rv32i/WALLY-CSRRS", "3000",
+                      "rv32i/WALLY-CSRRC", "4000",
+                      "rv32i/WALLY-CSRRWI", "3000",
+                      "rv32i/WALLY-CSRRSI", "3000",
+                      "rv32i/WALLY-CSRRCI", "3000"
+
+};
+
+  string testsBP64[] = '{
+		       "rv64BP/reg-test", "10000"
+	 };
+
+   // string tests64p[] = '{
+   //           "rv64p/WALLY-CAUSE", "3000",
+   //           "rv64p/WALLY-EPC", "3000",
+   //           "rv64p/WALLY-TVAL", "3000"
+   // };
+
+   
+
+   string tests64p[] = '{
+             "rv64p/WALLY-CAUSE", "3000",
+             "rv64p/WALLY-EPC", "3000",
+             "rv64p/WALLY-TVAL", "3000",
+             "rv64p/WALLY-MARCHID", "4000",
+             "rv64p/WALLY-MIMPID", "4000",
+             "rv64p/WALLY-MHARTID", "4000",
+             "rv64p/WALLY-MVENDORID", "4000"
+   };
+
+   
+
+  string tests[];
+  string ProgramAddrMapFile, ProgramLabelMapFile;
+  logic [`AHBW-1:0] HRDATAEXT;
+  logic             HREADYEXT, HRESPEXT;
+  logic [31:0]      HADDR;
+  logic [`AHBW-1:0] HWDATA;
+  logic             HWRITE;
+  logic [2:0]       HSIZE;
+  logic [2:0]       HBURST;
+  logic [3:0]       HPROT;
+  logic [1:0]       HTRANS;
+  logic             HMASTLOCK;
+  logic             HCLK, HRESETn;
+  logic [`XLEN-1:0] PCW;
+  
+  flopenr #(`XLEN) PCWReg(clk, reset, ~dut.hart.ieu.dp.StallW, dut.hart.ifu.PCM, PCW);
+  flopenr  #(32)   InstrWReg(clk, reset, ~dut.hart.ieu.dp.StallW,  dut.hart.ifu.InstrM, InstrW);
+  // pick tests based on modes supported
+  initial begin
+    if (`XLEN == 64) begin // RV64
+      if (TESTSBP) begin
+	      tests = testsBP64;
+      end else begin 
+	      tests = {tests64i};
+        if (`C_SUPPORTED) tests = {tests, tests64ic};
+        else              tests = {tests, tests64iNOc};
+        if (`M_SUPPORTED) tests = {tests, tests64m};
+        // if (`F_SUPPORTED) tests = {tests64f, tests};
+        // if (`D_SUPPORTED) tests = {tests64d, tests};
+        if (`A_SUPPORTED) tests = {tests, tests64a};
+        if (`MEM_VIRTMEM) tests = {tests64mmu, tests};
+      end
+ //     tests = {tests64a, tests};
+      tests = {tests, tests64p};
+    end else begin // RV32
+      // *** add the 32 bit bp tests
+      tests = {tests32i};
+      if (`C_SUPPORTED % 2 == 1) tests = {tests, tests32ic};    
+      else                       tests = {tests, tests32iNOc};
+      if (`M_SUPPORTED % 2 == 1) tests = {tests, tests32m};
+      // if (`F_SUPPORTED) tests = {tests32f, tests};
+      if (`A_SUPPORTED) tests = {tests, tests32a};
+      if (`MEM_VIRTMEM) tests = {tests32mmu, tests};
+    end
+
+    //tests = tests64p;
+  end
+
+
+  string signame, memfilename;
+
+  logic [31:0] GPIOPinsIn, GPIOPinsOut, GPIOPinsEn;
+  logic UARTSin, UARTSout;
+
+  // instantiate device to be tested
+  assign GPIOPinsIn = 0;
+  assign UARTSin = 1;
+  assign HREADYEXT = 1;
+  assign HRESPEXT = 0;
+  assign HRDATAEXT = 0;
+
+  wallypipelinedsoc dut(.*); 
+
+  // Track names of instructions
+  instrTrackerTB it(clk, reset, dut.hart.ieu.dp.FlushE,
+                dut.hart.ifu.ic.InstrF, dut.hart.ifu.InstrD, dut.hart.ifu.InstrE,
+                dut.hart.ifu.InstrM, InstrW, InstrFName, InstrDName,
+                InstrEName, InstrMName, InstrWName);
+
+  // initialize tests
+  initial
+    begin
+      test = 0;
+      totalerrors = 0;
+      testadr = 0;
+      // fill memory with defined values to reduce Xs in simulation
+      if (`XLEN == 32) meminit = 32'hFEDC0123;
+      else meminit = 64'hFEDCBA9876543210;
+      for (i=0; i<=65535; i = i+1) begin
+        //dut.imem.RAM[i] = meminit;
+       // dut.uncore.RAM[i] = meminit;
+      end
+      // read test vectors into memory
+      memfilename = {"../../imperas-riscv-tests/work/", tests[test], ".elf.memfile"};
+      $readmemh(memfilename, dut.imem.RAM);
+      $readmemh(memfilename, dut.uncore.dtim.RAM);
+      ProgramAddrMapFile = {"../../imperas-riscv-tests/work/", tests[test], ".elf.objdump.addr"};
+      ProgramLabelMapFile = {"../../imperas-riscv-tests/work/", tests[test], ".elf.objdump.lab"};
+      $display("Read memfile %s", memfilename);
+      reset = 1; # 42; reset = 0;
+    end
+
+  // generate clock to sequence tests
+  always
+    begin
+      clk = 1; # 5; clk = 0; # 5;
+    end
+   
+  // check results
+  always @(negedge clk)
+    begin    
+      if (dut.hart.priv.EcallFaultM && 
+          (dut.hart.ieu.dp.regf.rf[3] == 1 || (dut.hart.ieu.dp.regf.we3 && dut.hart.ieu.dp.regf.a3 == 3 && dut.hart.ieu.dp.regf.wd3 == 1))) begin
+        $display("Code ended with ecall with gp = 1");
+        #60; // give time for instructions in pipeline to finish
+        // clear signature to prevent contamination from previous tests
+        for(i=0; i<10000; i=i+1) begin
+          sig32[i] = 'bx;
+        end
+
+        // read signature, reformat in 64 bits if necessary
+        signame = {"../../imperas-riscv-tests/work/", tests[test], ".signature.output"};
+        $readmemh(signame, sig32);
+        i = 0;
+        while (i < 10000) begin
+          if (`XLEN == 32) begin
+            signature[i] = sig32[i];
+            i = i+1;
+          end else begin
+            signature[i/2] = {sig32[i+1], sig32[i]};
+            i = i + 2;
+          end
+        end
+
+        // Check errors
+        i = 0;
+        errors = 0;
+        if (`XLEN == 32)
+          testadr = (`TIMBASE+tests[test+1].atohex())/4;
+        else
+          testadr = (`TIMBASE+tests[test+1].atohex())/8;
+        /* verilator lint_off INFINITELOOP */
+        while (signature[i] !== 'bx) begin
+          //$display("signature[%h] = %h", i, signature[i]);
+          if (signature[i] !== dut.uncore.dtim.RAM[testadr+i]) begin
+            if (signature[i+4] !== 'bx || signature[i] !== 32'hFFFFFFFF) begin
+              // report errors unless they are garbage at the end of the sim
+              // kind of hacky test for garbage right now
+              errors = errors+1;
+              $display("  Error on test %s result %d: adr = %h sim = %h, signature = %h", 
+                    tests[test], i, (testadr+i)*`XLEN/8, dut.uncore.dtim.RAM[testadr+i], signature[i]);
+            end
+          end
+          i = i + 1;
+        end
+        /* verilator lint_on INFINITELOOP */
+        if (errors == 0) $display("%s succeeded.  Brilliant!!!", tests[test]);
+        else begin
+          $display("%s failed with %d errors. :(", tests[test], errors);
+          totalerrors = totalerrors+1;
+        end
+        test = test + 2;
+        if (test == tests.size()) begin
+          if (totalerrors == 0) $display("SUCCESS! All tests ran without failures.");
+          else $display("FAIL: %d test programs had errors", totalerrors);
+          $stop;
+        end
+        else begin
+          memfilename = {"../../imperas-riscv-tests/work/", tests[test], ".elf.memfile"};
+          $readmemh(memfilename, dut.imem.RAM);
+          $readmemh(memfilename, dut.uncore.dtim.RAM);
+          $display("Read memfile %s", memfilename);
+	  ProgramAddrMapFile = {"../../imperas-riscv-tests/work/", tests[test], ".elf.objdump.addr"};
+	  ProgramLabelMapFile = {"../../imperas-riscv-tests/work/", tests[test], ".elf.objdump.lab"};
+          reset = 1; # 17; reset = 0;
+        end
+      end
+    end // always @ (negedge clk)
+
+  // track the current function or global label
+  if (DEBUG == 1) begin : functionRadix
+    function_radix function_radix(.reset(reset),
+				  .ProgramAddrMapFile(ProgramAddrMapFile),
+				  .ProgramLabelMapFile(ProgramLabelMapFile));
+  end
+
+  // initialize the branch predictor
+  initial begin
+    $readmemb(`TWO_BIT_PRELOAD, dut.hart.ifu.bpred.Predictor.DirPredictor.PHT.memory);
+    $readmemb(`BTB_PRELOAD, dut.hart.ifu.bpred.TargetPredictor.memory.memory);    
+  end
+  
+endmodule
+
+/* verilator lint_on STMTDLY */
+/* verilator lint_on WIDTH */
+
+module instrTrackerTB(
+  input  logic            clk, reset, FlushE,
+  input  logic [31:0]     InstrF, InstrD,
+  input  logic [31:0]     InstrE, InstrM,
+  input  logic [31:0]     InstrW,
+//  output logic [31:0]     InstrW,
+  output string           InstrFName, InstrDName, InstrEName, InstrMName, InstrWName);
+        
+  // stage Instr to Writeback for visualization
+  // flopr  #(32) InstrWReg(clk, reset, InstrM, InstrW);
+
+  instrNameDecTB fdec(InstrF, InstrFName);
+  instrNameDecTB ddec(InstrD, InstrDName);
+  instrNameDecTB edec(InstrE, InstrEName);
+  instrNameDecTB mdec(InstrM, InstrMName);
+  instrNameDecTB wdec(InstrW, InstrWName);
+endmodule
+
+// decode the instruction name, to help the test bench
+module instrNameDecTB(
+  input  logic [31:0] instr,
+  output string       name);
+
+  logic [6:0] op;
+  logic [2:0] funct3;
+  logic [6:0] funct7;
+  logic [11:0] imm;
+
+  assign op = instr[6:0];
+  assign funct3 = instr[14:12];
+  assign funct7 = instr[31:25];
+  assign imm = instr[31:20];
+
+  // it would be nice to add the operands to the name 
+  // create another variable called decoded
+
+  always_comb 
+    casez({op, funct3})
+      10'b0000000_000: name = "BAD";
+      10'b0000011_000: name = "LB";
+      10'b0000011_001: name = "LH";
+      10'b0000011_010: name = "LW";
+      10'b0000011_011: name = "LD";
+      10'b0000011_100: name = "LBU";
+      10'b0000011_101: name = "LHU";
+      10'b0000011_110: name = "LWU";
+      10'b0010011_000: if (instr[31:15] == 0 && instr[11:7] ==0) name = "NOP/FLUSH";
+                       else                                      name = "ADDI";
+      10'b0010011_001: if (funct7[6:1] == 6'b000000) name = "SLLI";
+                       else                      name = "ILLEGAL";
+      10'b0010011_010: name = "SLTI";
+      10'b0010011_011: name = "SLTIU";
+      10'b0010011_100: name = "XORI";
+      10'b0010011_101: if (funct7[6:1] == 6'b000000)      name = "SRLI";
+                       else if (funct7[6:1] == 6'b010000) name = "SRAI"; 
+                       else                           name = "ILLEGAL"; 
+      10'b0010011_110: name = "ORI";
+      10'b0010011_111: name = "ANDI";
+      10'b0010111_???: name = "AUIPC";
+      10'b0100011_000: name = "SB";
+      10'b0100011_001: name = "SH";
+      10'b0100011_010: name = "SW";
+      10'b0100011_011: name = "SD";
+      10'b0011011_000: name = "ADDIW";
+      10'b0011011_001: name = "SLLIW";
+      10'b0011011_101: if      (funct7 == 7'b0000000) name = "SRLIW";
+                       else if (funct7 == 7'b0100000) name = "SRAIW";
+                       else                           name = "ILLEGAL";
+      10'b0111011_000: if      (funct7 == 7'b0000000) name = "ADDW";
+                       else if (funct7 == 7'b0100000) name = "SUBW";
+                       else if (funct7 == 7'b0000001) name = "MULW";
+                       else                           name = "ILLEGAL";
+      10'b0111011_001: if      (funct7 == 7'b0000000) name = "SLLW";
+                       else if (funct7 == 7'b0000001) name = "DIVW";
+                       else                           name = "ILLEGAL";
+      10'b0111011_101: if      (funct7 == 7'b0000000) name = "SRLW";
+                       else if (funct7 == 7'b0100000) name = "SRAW";
+                       else if (funct7 == 7'b0000001) name = "DIVUW";
+                       else                           name = "ILLEGAL";
+      10'b0111011_110: if      (funct7 == 7'b0000001) name = "REMW";
+                       else                           name = "ILLEGAL";
+      10'b0111011_111: if      (funct7 == 7'b0000001) name = "REMUW";
+                       else                           name = "ILLEGAL";
+      10'b0110011_000: if      (funct7 == 7'b0000000) name = "ADD";
+                       else if (funct7 == 7'b0000001) name = "MUL";
+                       else if (funct7 == 7'b0100000) name = "SUB"; 
+                       else                           name = "ILLEGAL"; 
+      10'b0110011_001: if      (funct7 == 7'b0000000) name = "SLL";
+                       else if (funct7 == 7'b0000001) name = "MULH";
+                       else                           name = "ILLEGAL";
+      10'b0110011_010: if      (funct7 == 7'b0000000) name = "SLT";
+                       else if (funct7 == 7'b0000001) name = "MULHSU";
+                       else                           name = "ILLEGAL";
+      10'b0110011_011: if      (funct7 == 7'b0000000) name = "SLTU";
+                       else if (funct7 == 7'b0000001) name = "MULHU";
+                       else                           name = "ILLEGAL";
+      10'b0110011_100: if      (funct7 == 7'b0000000) name = "XOR";
+                       else if (funct7 == 7'b0000001) name = "DIV";
+                       else                           name = "ILLEGAL";
+      10'b0110011_101: if      (funct7 == 7'b0000000) name = "SRL";
+                       else if (funct7 == 7'b0000001) name = "DIVU";
+                       else if (funct7 == 7'b0100000) name = "SRA";
+                       else                           name = "ILLEGAL";
+      10'b0110011_110: if      (funct7 == 7'b0000000) name = "OR";
+                       else if (funct7 == 7'b0000001) name = "REM";
+                       else                           name = "ILLEGAL";
+      10'b0110011_111: if      (funct7 == 7'b0000000) name = "AND";
+                       else if (funct7 == 7'b0000001) name = "REMU";
+                       else                           name = "ILLEGAL";
+      10'b0110111_???: name = "LUI";
+      10'b1100011_000: name = "BEQ";
+      10'b1100011_001: name = "BNE";
+      10'b1100011_100: name = "BLT";
+      10'b1100011_101: name = "BGE";
+      10'b1100011_110: name = "BLTU";
+      10'b1100011_111: name = "BGEU";
+      10'b1100111_000: name = "JALR";
+      10'b1101111_???: name = "JAL";
+      10'b1110011_000: if      (imm == 0) name = "ECALL";
+                       else if (imm == 1) name = "EBREAK";
+                       else if (imm == 2) name = "URET";
+                       else if (imm == 258) name = "SRET";
+                       else if (imm == 770) name = "MRET";
+                       else              name = "ILLEGAL";
+      10'b1110011_001: name = "CSRRW";
+      10'b1110011_010: name = "CSRRS";
+      10'b1110011_011: name = "CSRRC";
+      10'b1110011_101: name = "CSRRWI";
+      10'b1110011_110: name = "CSRRSI";
+      10'b1110011_111: name = "CSRRCI";
+      10'b0101111_010: if      (funct7[6:2] == 5'b00010) name = "LR.W";
+                       else if (funct7[6:2] == 5'b00011) name = "SC.W";
+                       else if (funct7[6:2] == 5'b00001) name = "AMOSWAP.W";
+                       else if (funct7[6:2] == 5'b00000) name = "AMOADD.W";
+                       else if (funct7[6:2] == 5'b00100) name = "AMOAXOR.W";
+                       else if (funct7[6:2] == 5'b01100) name = "AMOAND.W";
+                       else if (funct7[6:2] == 5'b01000) name = "AMOOR.W";
+                       else if (funct7[6:2] == 5'b10000) name = "AMOMIN.W";
+                       else if (funct7[6:2] == 5'b10100) name = "AMOMAX.W";
+                       else if (funct7[6:2] == 5'b11000) name = "AMOMINU.W";
+                       else if (funct7[6:2] == 5'b11100) name = "AMOMAXU.W";
+                       else                              name = "ILLEGAL";
+      10'b0101111_011: if      (funct7[6:2] == 5'b00010) name = "LR.D";
+                       else if (funct7[6:2] == 5'b00011) name = "SC.D";
+                       else if (funct7[6:2] == 5'b00001) name = "AMOSWAP.D";
+                       else if (funct7[6:2] == 5'b00000) name = "AMOADD.D";
+                       else if (funct7[6:2] == 5'b00100) name = "AMOAXOR.D";
+                       else if (funct7[6:2] == 5'b01100) name = "AMOAND.D";
+                       else if (funct7[6:2] == 5'b01000) name = "AMOOR.D";
+                       else if (funct7[6:2] == 5'b10000) name = "AMOMIN.D";
+                       else if (funct7[6:2] == 5'b10100) name = "AMOMAX.D";
+                       else if (funct7[6:2] == 5'b11000) name = "AMOMINU.D";
+                       else if (funct7[6:2] == 5'b11100) name = "AMOMAXU.D";
+                       else                              name = "ILLEGAL";
+      10'b0001111_???: name = "FENCE";
+      default:         name = "ILLEGAL";
+    endcase
+endmodule