Fix running on different environment issue

Now completely shifted to Ubuntu 18.04 setup should work for everyone

.gitignore

@@ -1,4 +1,5 @@
 exec/*
+!exec/executable.txt
 inputs/*.log.txt
 inputs/*.out.txt
 mips_cpu_harvard.vcd

exec/executable.txt

@@ -0,0 +1 @@
+A folder for executables

rtl/mips_cpu_alu.v

@@ -73,10 +73,8 @@ Alu Operations:
 
 Ops ALUOps; //Note confusing naming to avoid potential duplicate variable naming errors, as a result of enum implemetnation.
 
-assign ALUOps = ALUOp;
-
   always_comb begin
-
+    assign ALUOps = ALUOp;
     case(ALUOps)
       ADD: begin
           ALURes = $signed(A) + $signed(B);

rtl/mips_cpu_control.v

@@ -42,7 +42,7 @@ typedef enum logic[5:0]{
     SW      = 6'd43
 } op_enum;
 op_enum op;
-assign op = Instr[31:26];
+
 
 typedef enum logic[5:0]{
     SLL     = 6'd0,
@@ -68,7 +68,7 @@ typedef enum logic[5:0]{
     SLTU    = 6'd43
 } funct_enum;
 funct_enum funct;
-assign funct = Instr[5:0];
+
 
 typedef enum logic[4:0]{
     BLTZ    = 5'd0,
@@ -77,11 +77,12 @@ typedef enum logic[4:0]{
     BGEZAL  = 5'd17
 } rt_enum;
 rt_enum rt;
-assign rt = Instr[20:16];
-
 
 
 always @(*) begin
+    assign op = Instr[31:26];
+    assign funct = Instr[5:0];
+    assign rt = Instr[20:16];
     //CtrlRegDst logic
     if((op==ADDIU) || (op==ANDI) || (op==LB) || (op==LBU) || (op==LH) || (op==LHU) || (op==LUI) || (op==LW) || (op==LWL) || (op==LWR) || (op==ORI) || (op==SLTI) || (op==SLTIU) || (op==XORI))begin
         CtrlRegDst = 2'd0; //Write address comes from rt

test/test_mips_cpu_harvard.sh

@@ -1,9 +1,6 @@
 #!/bin/bash
 
-#**Delete command for windows before submission**
+# 1. Source File & Source Directory Parsing
-#rm inputs/*.log.txt inputs/*.out.txt
-
-# Source File & Source Directory Parsing
 SRC_DIR=${1?Error: no source directory given in argument};      # e.g. rtl
 SRC=$(ls ${SRC_DIR} | grep -E "harvard|memory|alu|regfile|pc|control");
 SRC_TEMP="";
@@ -12,15 +9,16 @@ do
     SRC_TEMP+=${SRC_DIR}/${src}" ";
 done
 SRC=${SRC_TEMP}
-#echo ${SRC};
 
-# Instruction Argument
+
+# 2. Instruction Argument
 INSTR=${2:-"No instruction specified: running all testcases"};  # e.g. addiu
 
-# Start Testing
+
+# 3. Start Testing
+# 3-1. Running ALL testcases when instruction not specified.
 if [[ ${INSTR} == "No instruction specified: running all testcases" ]];
 then
-    # All Testcase Files
     TESTCASES=$(find ./inputs ! -name '*ref*'  ! -name '*log*' ! -name '*out*' ! -name '*inputs*' ! -name '*data*' | sed 's#.*/##');
     #echo ${TESTCASES}
     for TESTCASE in ${TESTCASES}
@@ -29,17 +27,15 @@ then
         #echo ${TESTCASE};
         TESTCASE="${TESTCASE%%.*}";
         
-#/mnt/c/Windows/System32/cmd.exe /C \
 iverilog -Wall -g2012 \
     -s mips_cpu_harvard_tb \
     -P mips_cpu_harvard_tb.INSTR_INIT_FILE=\"inputs/${TESTCASE}.txt\" \
     -P mips_cpu_harvard_tb.DATA_INIT_FILE=\"inputs/${TESTCASE}.data.txt\" \
     -o exec/mips_cpu_harvard_tb_${TESTCASE} testbench/mips_cpu_harvard_tb.v \
     ${SRC} 2> /dev/null
-#/mnt/c/Windows/System32/cmd.exe /C vvp 
+./exec/mips_cpu_harvard_tb_${TESTCASE} &> ./inputs/${TESTCASE}.log.txt;             # log file for debugging (contains $display)
-./exec/mips_cpu_harvard_tb_${TESTCASE} &> ./inputs/${TESTCASE}.log.txt;       # log file for debugging (contains $display)
+echo "$(tail -1 ./inputs/${TESTCASE}.log.txt)" > ./inputs/${TESTCASE}.out.txt;      # register v0 output to compare with reference
-echo "$(tail -1 ./inputs/${TESTCASE}.log.txt)" > ./inputs/${TESTCASE}.out.txt;                                       # register v0 output to compare with reference
+if diff -w ./inputs/${TESTCASE}.out.txt ./inputs/${TESTCASE}.ref.txt &> /dev/null   # compare
-if diff -w ./inputs/${TESTCASE}.out.txt ./inputs/${TESTCASE}.ref.txt &> /dev/null                                    # compare
 then 
     echo ${TESTCASE} ${TESTCASE} "Pass";
 else 
@@ -47,19 +43,19 @@ else
 fi
     done
 
+# 3-2 Running SINGLE testcase of specified instruction
 else
-    # Run Testcase File Of Specified Instruction
+
-#/mnt/c/Windows/System32/cmd.exe /C \
 iverilog -Wall -g2012 \
     -s mips_cpu_harvard_tb \
     -P mips_cpu_harvard_tb.INSTR_INIT_FILE=\"inputs/${INSTR}.txt\" \
     -P mips_cpu_harvard_tb.DATA_INIT_FILE=\"inputs/${INSTR}.data.txt\" \
     -o exec/mips_cpu_harvard_tb_${INSTR} testbench/mips_cpu_harvard_tb.v \
     ${SRC} 2> /dev/null
-#/mnt/c/Windows/System32/cmd.exe /C vvp 
+
-./exec/mips_cpu_harvard_tb_${INSTR} &> ./inputs/${INSTR}.log.txt;            # log file for debugging (contains $display)
+./exec/mips_cpu_harvard_tb_${INSTR} &> ./inputs/${INSTR}.log.txt;                   # log file for debugging (contains $display)
-echo "$(tail -1 ./inputs/${INSTR}.log.txt)" > ./inputs/${INSTR}.out.txt;                                            # register v0 output to compare with reference
+echo "$(tail -1 ./inputs/${INSTR}.log.txt)" > ./inputs/${INSTR}.out.txt;            # register v0 output to compare with reference
-if diff -w ./inputs/${INSTR}.out.txt ./inputs/${INSTR}.ref.txt &> /dev/null                                         # compare
+if diff -w ./inputs/${INSTR}.out.txt ./inputs/${INSTR}.ref.txt &> /dev/null         # compare
 then 
     echo ${INSTR} ${INSTR} "Pass";
 else 

test/test_mips_cpu_harvard_windows.sh

@@ -1,67 +0,0 @@
-#!/bin/bash
-
-#**Delete command for windows before submission**
-#rm inputs/*.log.txt inputs/*.out.txt
-
-# Source File & Source Directory Parsing
-SRC_DIR=${1?Error: no source directory given in argument};      # e.g. rtl
-SRC=$(ls ${SRC_DIR} | grep -E "harvard|memory|alu|regfile|pc|control");
-SRC_TEMP="";
-for src in ${SRC}
-do
-    SRC_TEMP+=${SRC_DIR}/${src}" ";
-done
-SRC=${SRC_TEMP}
-#echo ${SRC};
-
-# Instruction Argument
-INSTR=${2:-"No instruction specified: running all testcases"};  # e.g. addiu
-
-# Start Testing
-if [[ ${INSTR} == "No instruction specified: running all testcases" ]];
-then
-    # All Testcase Files
-    TESTCASES=$(find ./inputs ! -name '*ref*'  ! -name '*log*' ! -name '*out*' ! -name '*inputs*' ! -name '*data*' | sed 's#.*/##');
-    #echo ${TESTCASES}
-    for TESTCASE in ${TESTCASES}
-    do
-        # Run Each Testcase File
-        #echo ${TESTCASE};
-        TESTCASE="${TESTCASE%%.*}";
-        
-/mnt/c/Windows/System32/cmd.exe /C \
-iverilog -Wall -g2012 \
-    -s mips_cpu_harvard_tb \
-    -P mips_cpu_harvard_tb.INSTR_INIT_FILE=\"inputs/${TESTCASE}.txt\" \
-    -P mips_cpu_harvard_tb.DATA_INIT_FILE=\"inputs/${TESTCASE}.data.txt\" \
-    -o exec/mips_cpu_harvard_tb_${TESTCASE} testbench/mips_cpu_harvard_tb.v \
-    ${SRC} 2> /dev/null
-/mnt/c/Windows/System32/cmd.exe /C vvp ./exec/mips_cpu_harvard_tb_${TESTCASE} &> ./inputs/${TESTCASE}.log.txt;       # log file for debugging (contains $display)
-echo "$(tail -1 ./inputs/${TESTCASE}.log.txt)" > ./inputs/${TESTCASE}.out.txt;                                       # register v0 output to compare with reference
-if diff -w ./inputs/${TESTCASE}.out.txt ./inputs/${TESTCASE}.ref.txt &> /dev/null                                    # compare
-then 
-    echo ${TESTCASE} ${TESTCASE} "Pass";
-else 
-    printf '%s %s %s%d %s%d%s\n' "${TESTCASE}" "${TESTCASE}" "Fail Output=" "$(tail -1 ./inputs/${TESTCASE}.out.txt)" "Ref=" "$(tail -1 ./inputs/${TESTCASE}.ref.txt)" 2> /dev/null;
-fi
-    done
-
-else
-    # Run Testcase File Of Specified Instruction
-/mnt/c/Windows/System32/cmd.exe /C \
-iverilog -Wall -g2012 \
-    -s mips_cpu_harvard_tb \
-    -P mips_cpu_harvard_tb.INSTR_INIT_FILE=\"inputs/${INSTR}.txt\" \
-    -P mips_cpu_harvard_tb.DATA_INIT_FILE=\"inputs/${INSTR}.data.txt\" \
-    -o exec/mips_cpu_harvard_tb_${INSTR} testbench/mips_cpu_harvard_tb.v \
-    ${SRC} 2> /dev/null
-/mnt/c/Windows/System32/cmd.exe /C vvp ./exec/mips_cpu_harvard_tb_${INSTR} &> ./inputs/${INSTR}.log.txt;            # log file for debugging (contains $display)
-echo "$(tail -1 ./inputs/${INSTR}.log.txt)" > ./inputs/${INSTR}.out.txt;                                            # register v0 output to compare with reference
-if diff -w ./inputs/${INSTR}.out.txt ./inputs/${INSTR}.ref.txt &> /dev/null                                         # compare
-then 
-    echo ${INSTR} ${INSTR} "Pass";
-else 
-    printf '%s %s %s%d %s%d%s\n' "${INSTR}" "${INSTR}" "Fail Output=" "$(tail -1 ./inputs/${INSTR}.out.txt)" "Ref=" "$(tail -1 ./inputs/${INSTR}.ref.txt)" 2> /dev/null;
-fi
-
-fi