diff --git a/driver/tests/tex_demo/blitter.h b/driver/tests/tex_demo/blitter.h
index 6c44f8c2..7116fc92 100644
--- a/driver/tests/tex_demo/blitter.h
+++ b/driver/tests/tex_demo/blitter.h
@@ -1,6 +1,6 @@
 #include "format.h"
 
-struct GLSurfaceDesc {
+struct SurfaceDesc {
   uint8_t Format;
   uint8_t *pBits;
   int32_t Width;
@@ -10,12 +10,12 @@ struct GLSurfaceDesc {
 
 class BlitTable {
 public:
-  typedef void (*PfnCopy)(const GLSurfaceDesc &dstDesc, 
+  typedef void (*PfnCopy)(const SurfaceDesc &dstDesc, 
                           uint32_t dstOffsetX,
                           uint32_t dstOffsetY, 
                           uint32_t copyWidth,
                           uint32_t copyHeight, 
-                          const GLSurfaceDesc &srcDesc,
+                          const SurfaceDesc &srcDesc,
                           uint32_t srcOffsetX, 
                           uint32_t srcOffsetY);
 
@@ -183,12 +183,12 @@ public:
 
 private:
   template <ePixelFormat SrcFormat, ePixelFormat DstFormat>
-  static void Copy(const GLSurfaceDesc &dstDesc, 
+  static void Copy(const SurfaceDesc &dstDesc, 
                    uint32_t dstOffsetX,
                    uint32_t dstOffsetY, 
                    uint32_t copyWidth,
                    uint32_t copyHeight, 
-                   const GLSurfaceDesc &srcDesc,
+                   const SurfaceDesc &srcDesc,
                    uint32_t srcOffsetX, 
                    uint32_t srcOffsetY) {
     auto srcBPP = TFormatInfo<SrcFormat>::CBSIZE;
@@ -215,9 +215,9 @@ private:
   }
 
   template <typename Type>
-  static void CopyFast(const GLSurfaceDesc &dstDesc, uint32_t dstOffsetX,
+  static void CopyFast(const SurfaceDesc &dstDesc, uint32_t dstOffsetX,
                        uint32_t dstOffsetY, uint32_t copyWidth,
-                       uint32_t copyHeight, const GLSurfaceDesc &srcDesc,
+                       uint32_t copyHeight, const SurfaceDesc &srcDesc,
                        uint32_t srcOffsetX, uint32_t srcOffsetY) {
     auto nBPP = sizeof(Type);
     auto srcNextLine = srcDesc.Pitch;
@@ -237,12 +237,12 @@ private:
     }
   }
 
-  static void CopyInvalid(const GLSurfaceDesc & /*dstDesc*/,
+  static void CopyInvalid(const SurfaceDesc & /*dstDesc*/,
                           uint32_t /*dstOffsetX*/, 
                           uint32_t /*dstOffsetY*/,
                           uint32_t /*copyWidth*/, 
                           uint32_t /*copyHeight*/,
-                          const GLSurfaceDesc & /*srcDesc*/,
+                          const SurfaceDesc & /*srcDesc*/,
                           uint32_t /*srcOffsetX*/, 
                           uint32_t /*srcOffsetY*/)
   {
diff --git a/driver/tests/tex_demo/demo b/driver/tests/tex_demo/demo
deleted file mode 100755
index 9f9bfc7a..00000000
Binary files a/driver/tests/tex_demo/demo and /dev/null differ
diff --git a/driver/tests/tex_demo/utils.cpp b/driver/tests/tex_demo/utils.cpp
index 342d49d5..304693b2 100644
--- a/driver/tests/tex_demo/utils.cpp
+++ b/driver/tests/tex_demo/utils.cpp
@@ -162,12 +162,12 @@ void dump_image(const std::vector<uint8_t>& pixels, uint32_t width, uint32_t hei
   }
 }
 
-int CopyBuffers(const GLSurfaceDesc &dstDesc, 
+int CopyBuffers(const SurfaceDesc &dstDesc, 
                 int32_t dstOffsetX,
                 int32_t dstOffsetY, 
                 int32_t copyWidth, 
                 int32_t copyHeight,
-                const GLSurfaceDesc &srcDesc, 
+                const SurfaceDesc &srcDesc, 
                 int32_t srcOffsetX,                
                 int32_t srcOffsetY) {
 
diff --git a/driver/tests/tex_demo/utils.h b/driver/tests/tex_demo/utils.h
index 65a7f412..d22a662b 100644
--- a/driver/tests/tex_demo/utils.h
+++ b/driver/tests/tex_demo/utils.h
@@ -15,12 +15,12 @@ int SaveTGA(const char *filename,
             uint32_t height, 
             uint32_t bpp);
 
-int CopyBuffers(const GLSurfaceDesc &dstDesc, 
+int CopyBuffers(const SurfaceDesc &dstDesc, 
                 int32_t dstOffsetX,
                 int32_t dstOffsetY, 
                 int32_t copyWidth, 
                 int32_t copyHeight,
-                const GLSurfaceDesc &srcDesc, 
+                const SurfaceDesc &srcDesc, 
                 int32_t srcOffsetX,
                 int32_t srcOffsetY);
 
diff --git a/hw/rtl/VX_decode.v b/hw/rtl/VX_decode.v
index 3f760bb8..597d347f 100644
--- a/hw/rtl/VX_decode.v
+++ b/hw/rtl/VX_decode.v
@@ -394,6 +394,7 @@ module VX_decode  #(
                     3'h5: begin
                         op_type = `OP_BITS'(`GPU_TEX);
                         op_mod  = `MOD_BITS'(func2);
+                        use_rd  = 1;
                         rs3_fp  = 0;
                         `USED_REGS (1'b0, rd);
                         `USED_REGS (1'b0, rs1);