diff --git a/.gitignore b/.gitignore
index f5c2d27..118da58 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,8 +2,6 @@ exec/*
 !exec/executable.txt
 *.log.txt
 *.out.txt
-mips_cpu_harvard.vcd
-mips_cpu_bus.vcd
 .DS_Store
 inputs/.DS_Store
 *.stderr.txt
diff --git a/test/test_mips_cpu_bus.sh b/test/test_mips_cpu_bus.sh
index 6d67445..4c70660 100755
--- a/test/test_mips_cpu_bus.sh
+++ b/test/test_mips_cpu_bus.sh
@@ -25,7 +25,7 @@ then
                 -s mips_cpu_bus_tb \
                 -P mips_cpu_bus_tb.INSTR_INIT_FILE=\"inputs/${DIR}/${TESTCASE}.instr.txt\" \
                 -P mips_cpu_bus_tb.DATA_INIT_FILE=\"inputs/${DIR}/${TESTCASE}.data.txt\" \
-                -P mips_cpu_bus_tb.TESTCASE=\"inputs/${DIR}/${TESTCASE}.vcd\" \
+                -P mips_cpu_bus_tb.TESTCASE=\"inputs/${DIR}/${TESTCASE}_bus.vcd\" \
                 -o exec/mips_cpu_bus_tb_${TESTCASE} testbench/mips_cpu_bus_tb.v testbench/mips_cpu_bus_memory.v \
                 ${SRC} 2> inputs/${DIR}/${TESTCASE}.stderr.txt
             ./exec/mips_cpu_bus_tb_${TESTCASE} &> ./inputs/${DIR}/${TESTCASE}.log.txt;             # log file for debugging (contains $display)
@@ -47,7 +47,7 @@ else
         -s mips_cpu_bus_tb \
         -P mips_cpu_bus_tb.INSTR_INIT_FILE=\"inputs/${INSTR}/${TESTCASE}.instr.txt\" \
         -P mips_cpu_bus_tb.DATA_INIT_FILE=\"inputs/${INSTR}/${TESTCASE}.data.txt\" \
-        -P mips_cpu_bus_tb.TESTCASE=\"inputs/${INSTR}/${TESTCASE}.vcd\" \
+        -P mips_cpu_bus_tb.TESTCASE=\"inputs/${INSTR}/${TESTCASE}_bus.vcd\" \
         -o exec/mips_cpu_bus_tb_${TESTCASE} testbench/mips_cpu_bus_tb.v testbench/mips_cpu_bus_memory.v \
         ${SRC} 2> inputs/${INSTR}/${TESTCASE}.stderr.txt
         ./exec/mips_cpu_bus_tb_${TESTCASE} &> ./inputs/${INSTR}/${TESTCASE}.log.txt;             # log file for debugging (contains $display)
diff --git a/test/test_mips_cpu_harvard.sh b/test/test_mips_cpu_harvard.sh
index 9348002..342079a 100755
--- a/test/test_mips_cpu_harvard.sh
+++ b/test/test_mips_cpu_harvard.sh
@@ -25,7 +25,7 @@ then
                 -s mips_cpu_harvard_tb \
                 -P mips_cpu_harvard_tb.INSTR_INIT_FILE=\"inputs/${DIR}/${TESTCASE}.instr.txt\" \
                 -P mips_cpu_harvard_tb.DATA_INIT_FILE=\"inputs/${DIR}/${TESTCASE}.data.txt\" \
-                -P mips_cpu_harvard_tb.TESTCASE=\"inputs/${DIR}/${TESTCASE}.vcd\" \
+                -P mips_cpu_harvard_tb.TESTCASE=\"inputs/${DIR}/${TESTCASE}_harvard.vcd\" \
                 -o exec/mips_cpu_harvard_tb_${TESTCASE} testbench/mips_cpu_harvard_tb.v testbench/mips_cpu_harvard_memory.v\
                 ${SRC} 2> inputs/${DIR}/${TESTCASE}.stderr.txt
             ./exec/mips_cpu_harvard_tb_${TESTCASE} &> ./inputs/${DIR}/${TESTCASE}.log.txt;             # log file for debugging (contains $display)
@@ -47,7 +47,7 @@ else
         -s mips_cpu_harvard_tb \
         -P mips_cpu_harvard_tb.INSTR_INIT_FILE=\"inputs/${INSTR}/${TESTCASE}.instr.txt\" \
         -P mips_cpu_harvard_tb.DATA_INIT_FILE=\"inputs/${INSTR}/${TESTCASE}.data.txt\" \
-        -P mips_cpu_harvard_tb.TESTCASE=\"inputs/${INSTR}/${TESTCASE}.vcd\" \
+        -P mips_cpu_harvard_tb.TESTCASE=\"inputs/${INSTR}/${TESTCASE}_harvard.vcd\" \
         -o exec/mips_cpu_harvard_tb_${TESTCASE} testbench/mips_cpu_harvard_tb.v testbench/mips_cpu_harvard_memory.v\
         ${SRC} 2> inputs/${INSTR}/${TESTCASE}.stderr.txt
         ./exec/mips_cpu_harvard_tb_${TESTCASE} &> ./inputs/${INSTR}/${TESTCASE}.log.txt;             # log file for debugging (contains $display)