diff --git a/hw/sm501_template.h b/hw/sm501_template.h
new file mode 100644
index 0000000..c96ac25
--- /dev/null
+++ b/hw/sm501_template.h
@@ -0,0 +1,104 @@
+/*
+ * Pixel drawing function templates for QEMU SM501 Device
+ *
+ * Copyright (c) 2008 Shin-ichiro KAWASAKI
+ *
+ * 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.
+ */
+
+#if DEPTH == 8
+#define BPP 1
+#define PIXEL_TYPE uint8_t
+#elif DEPTH == 15 || DEPTH == 16
+#define BPP 2
+#define PIXEL_TYPE uint16_t
+#elif DEPTH == 32
+#define BPP 4
+#define PIXEL_TYPE uint32_t
+#else
+#error unsupport depth
+#endif
+
+#ifdef BGR_FORMAT
+#define PIXEL_NAME glue(DEPTH, bgr)
+#else
+#define PIXEL_NAME DEPTH
+#endif /* BGR_FORMAT */
+
+
+static void glue(draw_line8_, PIXEL_NAME)(
+                 uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
+{
+    uint8_t v, r, g, b;
+    do {
+      	v = ldub_raw(s);
+	r = (pal[v] >> 16) & 0xff;
+	g = (pal[v] >>  8) & 0xff;
+	b = (pal[v] >>  0) & 0xff;
+	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+	s ++;
+	d += BPP;
+    } while (-- width != 0);
+}
+
+static void glue(draw_line16_, PIXEL_NAME)(
+		 uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
+{
+    uint16_t rgb565;
+    uint8_t r, g, b;
+
+    do {
+	rgb565 = lduw_raw(s);
+	r = ((rgb565 >> 11) & 0x1f) << 3;
+	g = ((rgb565 >>  5) & 0x3f) << 2;
+	b = ((rgb565 >>  0) & 0x1f) << 3;
+	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+	s += 2;
+	d += BPP;
+    } while (-- width != 0);
+}
+
+static void glue(draw_line32_, PIXEL_NAME)(
+		 uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
+{
+    uint8_t r, g, b;
+
+    do {
+	ldub_raw(s);
+#if defined(TARGET_WORDS_BIGENDIAN)
+        r = s[1];
+        g = s[2];
+        b = s[3];
+#else
+        b = s[0];
+        g = s[1];
+        r = s[2];
+#endif
+	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+	s += 4;
+	d += BPP;
+    } while (-- width != 0);
+}
+
+#undef DEPTH
+#undef BPP
+#undef PIXEL_TYPE
+#undef PIXEL_NAME
+#undef BGR_FORMAT
+