diff --git a/ci/blackbox.sh b/ci/blackbox.sh
index f2c6ec2b..88930faf 100755
--- a/ci/blackbox.sh
+++ b/ci/blackbox.sh
@@ -124,9 +124,11 @@ CONFIGS="-DNUM_CLUSTERS=$CLUSTERS -DNUM_CORES=$CORES -DNUM_WARPS=$WARPS -DNUM_TH
 
 echo "CONFIGS=$CONFIGS"
 
-if [ -f "blackbox.cache" ]
+BLACKBOX_CACHE=blackbox.$DRIVER.cache
+
+if [ -f "$BLACKBOX_CACHE" ]
 then 
-    LAST_CONFIGS=`cat blackbox.cache`
+    LAST_CONFIGS=`cat $BLACKBOX_CACHE`
 fi
 
 if [ "$CONFIGS+$DEBUG+$SCOPE" != "$LAST_CONFIGS" ]; 
@@ -134,7 +136,7 @@ then
     make -C $DRIVER_PATH clean
 fi
 
-echo "$CONFIGS+$DEBUG+$SCOPE" > blackbox.cache
+echo "$CONFIGS+$DEBUG+$SCOPE" > $BLACKBOX_CACHE
 
 status=0
 
diff --git a/hw/rtl/VX_config.vh b/hw/rtl/VX_config.vh
index 8e0bbaa8..e9e57b03 100644
--- a/hw/rtl/VX_config.vh
+++ b/hw/rtl/VX_config.vh
@@ -269,7 +269,7 @@
 `define CSR_TEX_WRAPU           (`CSR_TEX_STATE_BEGIN+`TEX_STATE_WRAPU)
 `define CSR_TEX_WRAPV           (`CSR_TEX_STATE_BEGIN+`TEX_STATE_WRAPV)
 `define CSR_TEX_MIPOFF(lod)     (`CSR_TEX_STATE_BEGIN+`TEX_STATE_MIPOFF(lod))
-`define CSR_TEX_STATE_END       (`CSR_TEX_STATE_BEGIN + `NUM_TEX_STATES)
+`define CSR_TEX_STATE_END       (`CSR_TEX_STATE_BEGIN+`NUM_TEX_STATES)
 
 `define CSR_TEX_STATE(addr)     ((addr) - `CSR_TEX_STATE_BEGIN)