diff --git a/HISTORY b/HISTORY
index 2945531..1a314b5 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,5 +1,28 @@
+2000/9/30(土)
+
+wonx-a04 公開
+
+XDisplay.c 内の表示ルーチンを改良し，描画を多少高速にした．
+
+WWLCDPanel のデータの格納方法を変更した．
+(２ピクセルで１バイトだったのを，１ピクセルで１バイトを割り当てるようにした)
+(高速化のためだが，将来のカラー対応(241色？)のことも考えた)
+
+WonxDisplay_Sync() を追加．get 系の関数内での無駄な描画を減らした．
+
+スプライトウインドウ機能を実装．(未テスト)
+
+時刻関連の関数を実装．(timer.c)
+
+スプライトの優先順位を修正．(「番号が若いもののほうが優先」に修正した)
+
+
+
+
 2000/9/28(木)
 
+wonx-a03 公開
+
 screen2_set_window()の表示範囲を修正．
 マニュアルの screen2_set_window() の説明には「表示領域の横幅と縦幅」と
 書いてあるが，実際には「表示領域の横幅+1と縦幅+1」で動作する
diff --git a/Makefile b/Makefile
index 7675201..1e49d17 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,8 @@ XINCLUDEDIR = /usr/X11R6/include
 INCLUDEDIR = .
 XLIBDIR = /usr/X11R6/lib
 
-VERSION = Wonx-a03
-PKGNAME = wonx-a03
+VERSION = Wonx-a04
+PKGNAME = wonx-a04
 
 OBJS = WWCharacter.o WWColorMap.o WWDisplay.o WWLCDPanel.o WWPalette.o WWScreen.o WWSprite.o WonxDisplay.o XDisplay.o bank.o comm.o disp.o text.o key.o sound.o system.o timer.o etc.o wonx.o
 
diff --git a/WWDisplay.c b/WWDisplay.c
index 9df2d17..e20cd56 100644
--- a/WWDisplay.c
+++ b/WWDisplay.c
@@ -24,6 +24,15 @@ int WWDisplay_GetSpriteEnable(WWDisplay d) { return (d->sprite_enable); }
 int WWDisplay_GetSpriteWindowEnable(WWDisplay d)
 { return (d->sprite_window_enable); }
 
+int WWDisplay_GetSpriteWindowX(WWDisplay d)
+{ return (d->sprite_window_x); }
+int WWDisplay_GetSpriteWindowY(WWDisplay d)
+{ return (d->sprite_window_y); }
+int WWDisplay_GetSpriteWindowWidth(WWDisplay d)
+{ return (d->sprite_window_width); }
+int WWDisplay_GetSpriteWindowHeight(WWDisplay d)
+{ return (d->sprite_window_height); }
+
 int WWDisplay_GetBorder(WWDisplay d) { return (d->border); }
 
 int WWDisplay_GetForegroundColor(WWDisplay d) { return (d->foreground_color); }
@@ -54,6 +63,15 @@ int WWDisplay_SetSpriteEnable(WWDisplay d, int f)
 int WWDisplay_SetSpriteWindowEnable(WWDisplay d, int f)
 { return (d->sprite_window_enable = f); }
 
+int WWDisplay_SetSpriteWindowX(WWDisplay d, int n)
+{ return (d->sprite_window_x = n); }
+int WWDisplay_SetSpriteWindowY(WWDisplay d, int n)
+{ return (d->sprite_window_y = n); }
+int WWDisplay_SetSpriteWindowWidth(WWDisplay d, int n)
+{ return (d->sprite_window_width = n); }
+int WWDisplay_SetSpriteWindowHeight(WWDisplay d, int n)
+{ return (d->sprite_window_height = n); }
+
 int WWDisplay_SetBorder(WWDisplay d, int b) { return (d->border = b); }
 
 int WWDisplay_SetForegroundColor(WWDisplay d, int c)
@@ -112,6 +130,11 @@ WWDisplay WWDisplay_Create(int lcd_panel_width, int lcd_panel_height,
   WWDisplay_SetSpriteEnable(display, 0);
   WWDisplay_SetSpriteWindowEnable(display, 0);
 
+  WWDisplay_SetSpriteWindowX(     display, 0);
+  WWDisplay_SetSpriteWindowY(     display, 0);
+  WWDisplay_SetSpriteWindowWidth( display, lcd_panel_width);
+  WWDisplay_SetSpriteWindowHeight(display, lcd_panel_height);
+
   WWDisplay_SetBorder(display, 0);
 
   WWDisplay_SetForegroundColor(display, 3);
@@ -253,8 +276,21 @@ static int WWDisplay_DrawScreen(WWDisplay display, WWScreen screen)
 
 static int WWDisplay_DrawSprite(WWDisplay display, WWSprite sprite)
 {
-  int x, y;
-  int pixel;
+  int x, y, lcd_x, lcd_y;
+  int sx, sy, ex, ey;
+  int pixel, outside;
+
+  sx = WWDisplay_GetSpriteWindowX(display) - 1;
+  sy = WWDisplay_GetSpriteWindowY(display) - 1;
+
+  /* 以下は WWDisplay_DrawScreen() に合わせた */
+#if 0
+  ex = sx + WWDisplay_GetSpriteWindowWidth(display) - 1;
+  ey = sy + WWDisplay_GetSpriteWindowHeight(display) - 1;
+#else
+  ex = sx + WWDisplay_GetSpriteWindowWidth(display);
+  ey = sy + WWDisplay_GetSpriteWindowHeight(display);
+#endif
 
   for (y = 0; y < 8; y++) {
     for (x = 0; x < 8; x++) {
@@ -263,11 +299,24 @@ static int WWDisplay_DrawSprite(WWDisplay display, WWSprite sprite)
       /* 透明色の場合 */
       if (pixel == -1) continue;
 
+      lcd_x = WWSprite_GetX(sprite) + x;
+      lcd_y = WWSprite_GetY(sprite) + y;
+
+      if (WWDisplay_GetSpriteWindowEnable(display)) {
+	if ( (lcd_x < sx) || (lcd_y < sy) || (lcd_x > ex) || (lcd_y > ey) )
+	  outside = 1;
+	else
+	  outside = 0;
+
+	if (WWSprite_GetClipping(sprite)) { /* ウインドウの外側部分を表示 */
+	  if (!outside) continue;
+	} else {                            /* ウインドウの内側部分を表示 */
+	  if (outside) continue;
+	}
+      }
+
       pixel = WWColorMap_GetLCDColor(WWDisplay_GetColorMap(display), pixel);
-      WWLCDPanel_SetPixel(WWDisplay_GetLCDPanel(display),
-			  WWSprite_GetX(sprite) + x,
-			  WWSprite_GetY(sprite) + y,
-			  pixel);
+      WWLCDPanel_SetPixel(WWDisplay_GetLCDPanel(display), lcd_x, lcd_y, pixel);
     }
   }
 
@@ -300,28 +349,32 @@ int WWDisplay_DrawLCDPanel(WWDisplay display)
   }
 
   /* スクリーン１描画 */
-  if (WWDisplay_GetSpriteEnable(display))
-    WWDisplay_DrawScreen(display, WWDisplay_GetScreen(display, 0));
+  WWDisplay_DrawScreen(display, WWDisplay_GetScreen(display, 0));
 
   /* スプライト描画(スクリーン２より優先でないもの) */
-  for (i = 0; i < WWDisplay_GetSpriteCount(display); i++) {
-    sprite = WWDisplay_GetSprite(display,
-				 i + WWDisplay_GetSpriteStart(display));
-    if (!WWSprite_GetPriority(sprite)) {
-      WWDisplay_DrawSprite(display, sprite);
+  /* 重なった場合は，番号の若いものが手前に表示される */
+  if (WWDisplay_GetSpriteEnable(display)) {
+    for (i = WWDisplay_GetSpriteCount(display) - 1; i >= 0; i--) {
+      sprite = WWDisplay_GetSprite(display,
+				   i + WWDisplay_GetSpriteStart(display));
+      if (!WWSprite_GetPriority(sprite)) {
+	WWDisplay_DrawSprite(display, sprite);
+      }
     }
   }
 
   /* スクリーン２描画 */
-  if (WWDisplay_GetSpriteEnable(display))
-    WWDisplay_DrawScreen(display, WWDisplay_GetScreen(display, 1));
+  WWDisplay_DrawScreen(display, WWDisplay_GetScreen(display, 1));
 
   /* スプライト描画(スクリーン２より優先なもの) */
-  for (i = 0; i < WWDisplay_GetSpriteCount(display); i++) {
-    sprite = WWDisplay_GetSprite(display,
-				 i + WWDisplay_GetSpriteStart(display));
-    if (WWSprite_GetPriority(sprite)) {
-      WWDisplay_DrawSprite(display, sprite);
+  /* 重なった場合は，番号の若いものが手前に表示される */
+  if (WWDisplay_GetSpriteEnable(display)) {
+    for (i = WWDisplay_GetSpriteCount(display) - 1; i >= 0; i--) {
+      sprite = WWDisplay_GetSprite(display,
+				   i + WWDisplay_GetSpriteStart(display));
+      if (WWSprite_GetPriority(sprite)) {
+	WWDisplay_DrawSprite(display, sprite);
+      }
     }
   }
 
diff --git a/WWDisplay.h b/WWDisplay.h
index 48161db..6921189 100644
--- a/WWDisplay.h
+++ b/WWDisplay.h
@@ -35,6 +35,11 @@ WWLCDPanel WWDisplay_GetLCDPanel(WWDisplay d);
 int WWDisplay_GetSpriteEnable(WWDisplay d);
 int WWDisplay_GetSpriteWindowEnable(WWDisplay d);
 
+int WWDisplay_GetSpriteWindowX(WWDisplay d);
+int WWDisplay_GetSpriteWindowY(WWDisplay d);
+int WWDisplay_GetSpriteWindowWidth(WWDisplay d);
+int WWDisplay_GetSpriteWindowHeight(WWDisplay d);
+
 int WWDisplay_GetBorder(WWDisplay d);
 
 int WWDisplay_GetForegroundColor(WWDisplay d);
@@ -57,6 +62,11 @@ WWLCDPanel WWDisplay_SetLCDPanel(WWDisplay d, WWLCDPanel p);
 int WWDisplay_SetSpriteEnable(WWDisplay d, int f);
 int WWDisplay_SetSpriteWindowEnable(WWDisplay d, int f);
 
+int WWDisplay_SetSpriteWindowX(WWDisplay d, int n);
+int WWDisplay_SetSpriteWindowY(WWDisplay d, int n);
+int WWDisplay_SetSpriteWindowWidth(WWDisplay d, int n);
+int WWDisplay_SetSpriteWindowHeight(WWDisplay d, int n);
+
 int WWDisplay_SetBorder(WWDisplay d, int b);
 
 int WWDisplay_SetForegroundColor(WWDisplay d, int c);
diff --git a/WWDisplayP.h b/WWDisplayP.h
index cb9cfa1..18d58d5 100644
--- a/WWDisplayP.h
+++ b/WWDisplayP.h
@@ -21,8 +21,12 @@ typedef struct _WWDisplay {
   WWLCDPanel lcd_panel;
 
   /* ディスプレイの属性情報 */
-  int sprite_enable;  /* スプライト表示イネーブルフラグ */
-  int sprite_window_enable;  /* スプライトウインドウ機能イネーブルフラグ */
+  int sprite_enable; /* スプライト表示イネーブルフラグ */
+  int sprite_window_enable; /* スプライトウインドウ機能イネーブルフラグ */
+  int sprite_window_x;      /* スプライトウインドウ用 */
+  int sprite_window_y;      /* スプライトウインドウ用 */
+  int sprite_window_width;  /* スプライトウインドウ用 */
+  int sprite_window_height; /* スプライトウインドウ用 */
 
   int border; /* ボーダーカラー．0〜7のカラーマップ番号 */
 
diff --git a/WWLCDPanel.c b/WWLCDPanel.c
index c04eb80..b3e0090 100644
--- a/WWLCDPanel.c
+++ b/WWLCDPanel.c
@@ -24,8 +24,7 @@ int WWLCDPanel_GetPixel(WWLCDPanel lcd_panel, int x, int y)
        (y < 0) || (y > WWLCDPanel_GetHeight(lcd_panel) - 1) )
     return (-1);
 
-  pixel = lcd_panel->pixel[y * (WWLCDPanel_GetWidth(lcd_panel) / 2) + x / 2];
-  if (x % 2) pixel = pixel >> 4;
+  pixel = lcd_panel->pixel[y * WWLCDPanel_GetWidth(lcd_panel) + x];
   pixel &= 0x0f;
   return ((int)pixel);
 }
@@ -39,14 +38,9 @@ int WWLCDPanel_SetPixel(WWLCDPanel lcd_panel, int x, int y, int pixel)
        (y < 0) || (y > WWLCDPanel_GetHeight(lcd_panel) - 1) )
     return (-1);
 
-  p = 0x0f;
-  if (x % 2) p = p << 4;
-  n = y * (WWLCDPanel_GetWidth(lcd_panel) / 2) + x / 2;
-  lcd_panel->pixel[n] &= ~p;
-
   p = ((unsigned char)pixel) & 0x0f;
-  if (x % 2) p = p << 4;
-  lcd_panel->pixel[n] |= p;
+  n = y * WWLCDPanel_GetWidth(lcd_panel) + x;
+  lcd_panel->pixel[n] = p;
 
   return (pixel);
 }
@@ -63,7 +57,7 @@ WWLCDPanel WWLCDPanel_Create(int width, int height)
   WWLCDPanel_SetHeight(lcd_panel, height);
   lcd_panel->pixel =
     (unsigned char *)malloc(sizeof(unsigned char) *
-			    (WWLCDPanel_GetWidth(lcd_panel) / 2) *
+			    WWLCDPanel_GetWidth(lcd_panel) *
 			    WWLCDPanel_GetHeight(lcd_panel));
 
   for (y = 0; y < lcd_panel->height; y++) {
diff --git a/WonxDisplay.c b/WonxDisplay.c
index 18c4b9a..4a2f3a0 100644
--- a/WonxDisplay.c
+++ b/WonxDisplay.c
@@ -44,22 +44,15 @@ WonxDisplay WonxDisplay_Create(int x_width, int x_height,
   return (wonx_display);
 }
 
-int WonxDisplay_Flush(WonxDisplay wonx_display)
+int WonxDisplay_Sync(WonxDisplay wonx_display)
 {
   int i;
   XDisplay x_display;
   WWDisplay ww_display;
-  WWLCDPanel ww_lcd_panel;
 
   x_display = WonxDisplay_GetXDisplay(wonx_display);
   ww_display = WonxDisplay_GetWWDisplay(wonx_display);
 
-  if (XDisplay_GetLCDDraw(x_display)) {
-    WWDisplay_DrawLCDPanel(ww_display);
-    ww_lcd_panel = WWDisplay_GetLCDPanel(ww_display);
-    XDisplay_DrawLCDWindow(x_display, ww_lcd_panel);
-  }
-
   if (XDisplay_GetColorMapPrint(x_display)) {
     WWColorMap_PrintData(WWDisplay_GetColorMap(ww_display), stdout);
     XDisplay_SetColorMapPrint(x_display, 0);
@@ -86,6 +79,28 @@ int WonxDisplay_Flush(WonxDisplay wonx_display)
     XDisplay_SetSpritePrint(x_display, 0);
   }
 
+  XDisplay_Sync(x_display);
+
+  return (0);
+}
+
+int WonxDisplay_Flush(WonxDisplay wonx_display)
+{
+  XDisplay x_display;
+  WWDisplay ww_display;
+  WWLCDPanel ww_lcd_panel;
+
+  x_display = WonxDisplay_GetXDisplay(wonx_display);
+  ww_display = WonxDisplay_GetWWDisplay(wonx_display);
+
+  if (XDisplay_GetLCDDraw(x_display)) {
+    WWDisplay_DrawLCDPanel(ww_display);
+    ww_lcd_panel = WWDisplay_GetLCDPanel(ww_display);
+    XDisplay_DrawLCDWindow(x_display, ww_lcd_panel);
+  }
+
+  WonxDisplay_Sync(wonx_display);
+
   return (0);
 }
 
diff --git a/WonxDisplay.h b/WonxDisplay.h
index 3f9afe3..830a538 100644
--- a/WonxDisplay.h
+++ b/WonxDisplay.h
@@ -19,6 +19,7 @@ WWDisplay WonxDisplay_GetWWDisplay(WonxDisplay wonx_display);
 WonxDisplay WonxDisplay_Create(int x_width, int x_height,
 			       int ww_lcd_panel_width, int ww_lcd_panel_height,
 			       int ww_screen_width, int ww_screen_height);
+int WonxDisplay_Sync(WonxDisplay wonx_display);
 int WonxDisplay_Flush(WonxDisplay wonx_display);
 
 /*****************************************************************************/
diff --git a/XDisplay.c b/XDisplay.c
index 1b98d32..6d81bc1 100644
--- a/XDisplay.c
+++ b/XDisplay.c
@@ -387,6 +387,16 @@ int XDisplay_DrawLCDWindow(XDisplay x_display, WWLCDPanel ww_lcd_panel)
 	  rectangles[n].y = py;
 	  rectangles[n].width  = (x+1) * x_display->width  / ww_lcd_width - px;
 	  rectangles[n].height = (y+1) * x_display->height / ww_lcd_height- py;
+
+	  /* 隣接してる同色のピクセルは，極力いっしょに描画する */
+	  x++;
+	  while ( (x < ww_lcd_width) &&
+		  (pixel == WWLCDPanel_GetPixel(ww_lcd_panel, x, y)) ) {
+	    rectangles[n].width = (x+1) * x_display->width / ww_lcd_width - px;
+	    x++;
+	  }
+	  x--;
+
 	  n++;
 	}
       }
diff --git a/disp.c b/disp.c
index 43ed4c8..0332987 100644
--- a/disp.c
+++ b/disp.c
@@ -19,7 +19,7 @@ void display_control(unsigned int flags)
 {
   WWDisplay ww_display;
 
-  printf("call : display_control() : flags = 0x%04x, ", (int)flags);
+  printf("call : display_control() : flags = 0x%04x\n", (int)flags);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -47,7 +47,7 @@ void display_control(unsigned int flags)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : display_control() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -57,7 +57,7 @@ unsigned int display_status()
   WWDisplay ww_display;
   unsigned short int ret;
 
-  printf("call : display_status() : "); fflush(stdout);
+  printf("call : display_status() : \n"); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
@@ -89,9 +89,10 @@ unsigned int display_status()
 
   ret |= WWDisplay_GetBorder(WonxDisplay_GetWWDisplay(wonx_display)) << 7;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = %u\n", (int)ret); fflush(stdout);
+  printf("call : display_status() : return value = %u\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -103,7 +104,7 @@ void font_set_monodata(unsigned int number, unsigned int count, void * data)
   int f, b;
   unsigned char * d;
 
-  printf("call : font_set_monodata() : number = %u, count = %u, data = %p, ",
+  printf("call : font_set_monodata() : number = %u, count = %u, data = %p\n",
 	 (int)number, (int)count, data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -127,7 +128,8 @@ void font_set_monodata(unsigned int number, unsigned int count, void * data)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : font_set_monodata() : return value = none\n");
+  fflush(stdout);
 
   return;
 }
@@ -140,7 +142,7 @@ void font_set_colordata(unsigned int number,
   int f, b;
   unsigned char * d;
 
-  printf("call : font_set_colordata() : number = %u, count = %u, data = %p, ",
+  printf("call : font_set_colordata() : number = %u, count = %u, data = %p\n",
 	 (int)number, (int)count, data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -166,7 +168,8 @@ void font_set_colordata(unsigned int number,
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : font_set_colordata() : return value = none\n");
+  fflush(stdout);
 
   return;
 }
@@ -180,7 +183,7 @@ void font_get_data(unsigned int number,
   int f, b;
   unsigned char * d;
 
-  printf("call : font_get_data() : number = %u, count = %u, data = %p, ",
+  printf("call : font_get_data() : number = %u, count = %u, data = %p\n",
 	 (int)number, (int)count, data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -205,9 +208,9 @@ void font_get_data(unsigned int number,
     }
   }
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : font_get_data() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -216,7 +219,7 @@ void font_set_color(unsigned int colors)
 {
   WWDisplay dis;
 
-  printf("call : font_set_color() : colors = 0x%04x, ", (int)colors);
+  printf("call : font_set_color() : colors = 0x%04x\n", (int)colors);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -227,7 +230,7 @@ void font_set_color(unsigned int colors)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : font_set_color() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -237,7 +240,7 @@ unsigned int font_get_color(void)
   unsigned short int ret;
   WWDisplay dis;
 
-  printf("call : font_get_color() : "); fflush(stdout);
+  printf("call : font_get_color() : \n"); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
@@ -246,9 +249,10 @@ unsigned int font_get_color(void)
   ret |= WWDisplay_GetForegroundColor(dis);
   ret |= WWDisplay_GetBackgroundColor(dis) << 2;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
+  printf("call : font_get_color() : return value = 0x%04x\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -265,7 +269,7 @@ void screen_set_char(int screen, int x, int y, int w, int h, void * data)
   WWPalette p;
   WWCharacter c;
 
-  printf("call : screen_set_char() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = %p",
+  printf("call : screen_set_char() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = %p\n",
 	 screen, x, y, w, h, data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -294,7 +298,7 @@ void screen_set_char(int screen, int x, int y, int w, int h, void * data)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : screen_set_char() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -311,7 +315,7 @@ void screen_get_char(int screen, int x, int y, int w, int h, void * data)
   WWPalette p;
   WWCharacter c;
 
-  printf("call : screen_get_char() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = %p",
+  printf("call : screen_get_char() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = %p\n",
 	 screen, x, y, w, h, data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -337,28 +341,49 @@ void screen_get_char(int screen, int x, int y, int w, int h, void * data)
     }
   }
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : screen_get_char() : return value = none\n"); fflush(stdout);
 
   return;
 }
 
 unsigned int screen_get_char1(int screen, int x, int y)
 {
+  int horizontal; /* 横方向反転フラグ */
+  int vertical; /* 縦方向反転フラグ */
+  int palette_num; /* パレット番号 */
+  int character_num; /* 表示キャラクタ */
+  WWScreen s;
+  WWPalette p;
+  WWCharacter c;
   unsigned short int ret;
 
-  printf("call : screen_get_char1() : screen = %d, x = %d, y = %d, ",
+  printf("call : screen_get_char1() : screen = %d, x = %d, y = %d\n",
 	 screen, x, y);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
-  screen_get_char(screen, x, y, 1, 1, &ret);
+  s = WWDisplay_GetScreen(WonxDisplay_GetWWDisplay(wonx_display), screen);
 
-  WonxDisplay_Flush(wonx_display);
+  horizontal = WWScreen_GetHorizontal(s, x, y);
+  vertical   = WWScreen_GetVertical(  s, x, y);
+  p          = WWScreen_GetPalette(   s, x, y);
+  c          = WWScreen_GetCharacter( s, x, y);
+  palette_num = WWPalette_GetNumber(p);
+  character_num = WWCharacter_GetNumber(c);
 
-  printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
+  ret = 0;
+  ret |= horizontal << 15;
+  ret |= vertical << 14;
+  ret |= palette_num << 9;
+  ret |= character_num;
+
+  WonxDisplay_Sync(wonx_display);
+
+  printf("call : screen_get_char1() : return value = 0x%04x\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -375,7 +400,7 @@ void screen_fill_char(int screen, int x, int y, int w, int h,
   WWPalette p;
   WWCharacter c;
 
-  printf("call : screen_fill_char() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = 0x%04x, ",
+  printf("call : screen_fill_char() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = 0x%04x\n",
 	 screen, x, y, w, h, (int)data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -403,7 +428,7 @@ void screen_fill_char(int screen, int x, int y, int w, int h,
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : screen_fill_char() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -414,7 +439,7 @@ void screen_fill_attr(int screen, int x, int y, int w, int h,
   int i, j;
   unsigned short int c;
 
-  printf("call : screen_fill_attr() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = 0x%04x, mask = 0x%04x, ",
+  printf("call : screen_fill_attr() : screen = %d, x = %d, y = %d, w = %d, h = %d, data = 0x%04x, mask = 0x%04x\n",
 	 screen, x, y, w, h, (int)data, (int)mask); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -430,14 +455,14 @@ void screen_fill_attr(int screen, int x, int y, int w, int h,
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : screen_fill_attr() : return value = none\n"); fflush(stdout);
 
   return;
 }
 
 void sprite_set_range(unsigned int sprite_start, unsigned int sprite_count)
 {
-  printf("call : sprite_set_range() : start = %u, count = %u, ",
+  printf("call : sprite_set_range() : start = %u, count = %u\n",
 	 (int)sprite_start, (int)sprite_count); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -449,19 +474,18 @@ void sprite_set_range(unsigned int sprite_start, unsigned int sprite_count)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : sprite_set_range() : return value = none\n"); fflush(stdout);
 
   return;
 }
 
-void sprite_set_char(unsigned int sprite_num,
-		     unsigned int data)
+void sprite_set_char(unsigned int sprite_num, unsigned int data)
 {
   WWSprite s;
   WWPalette p;
   WWCharacter c;
 
-  printf("call : sprite_set_char() : number = %u, data = 0x%04x, ",
+  printf("call : sprite_set_char() : number = %u, data = 0x%04x\n",
 	 (int)sprite_num, (int)data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -483,7 +507,7 @@ void sprite_set_char(unsigned int sprite_num,
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : sprite_set_char() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -495,7 +519,7 @@ unsigned int sprite_get_char(unsigned int sprite_num)
   WWCharacter c;
   unsigned short int ret;
 
-  printf("call : sprite_get_char() : number = %u, ", (int)sprite_num);
+  printf("call : sprite_get_char() : number = %u\n", (int)sprite_num);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -516,9 +540,10 @@ unsigned int sprite_get_char(unsigned int sprite_num)
   c = WWSprite_GetCharacter(s);
   ret |= WWCharacter_GetNumber(c);
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
+  printf("call : sprite_get_char() : return value = 0x%04x\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -527,7 +552,7 @@ void sprite_set_location(unsigned int sprite_num, int x, int y)
 {
   WWSprite s;
 
-  printf("call : sprite_set_location() : number = %u, x = %d, y = %d, ",
+  printf("call : sprite_set_location() : number = %u, x = %d, y = %d\n",
 	 (int)sprite_num, x, y); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -537,7 +562,8 @@ void sprite_set_location(unsigned int sprite_num, int x, int y)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : sprite_set_location() : return value = none\n");
+  fflush(stdout);
 
   return;
 }
@@ -547,21 +573,19 @@ unsigned int sprite_get_location(unsigned int sprite_num)
   WWSprite s;
   unsigned short int ret;
 
-  printf("call : sprite_get_location() : number = %u, ", (int)sprite_num);
+  printf("call : sprite_get_location() : number = %u\n", (int)sprite_num);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
   s = WWDisplay_GetSprite(WonxDisplay_GetWWDisplay(wonx_display), sprite_num);
-  ret = 0;
 
-  /* これは本当か？ 逆では？ */
-  ret |= WWSprite_GetX(s) << 8;
-  ret |= WWSprite_GetY(s);
+  ret = (WWSprite_GetY(s) << 8) | WWSprite_GetX(s);
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
+  printf("call : sprite_get_location() : return value = 0x%04x\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -571,7 +595,7 @@ void sprite_set_char_location(unsigned int sprite_num,
 {
   if (wonx_display == NULL) Wonx_Create();
 
-  printf("call : sprite_set_char_location() : number = %u, data = 0x%04x, x = %d, y = %d, ",
+  printf("call : sprite_set_char_location() : number = %u, data = 0x%04x, x = %d, y = %d\n",
 	 (int)sprite_num, (int)data, x, y); fflush(stdout);
 
   sprite_set_char(sprite_num, data);
@@ -579,7 +603,8 @@ void sprite_set_char_location(unsigned int sprite_num,
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : sprite_set_char_location() : return value = none\n");
+  fflush(stdout);
 
   return;
 }
@@ -588,19 +613,20 @@ unsigned long int sprite_get_char_location(unsigned int sprite_num)
 {
   unsigned long int ret;
 
-  printf("call : sprite_get_char_location() : number = %u, ", (int)sprite_num);
+  printf("call : sprite_get_char_location() : number = %u\n", (int)sprite_num);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
   ret = 0;
-  /* これは本当か？ 逆では？ */
-  ret |= sprite_get_char(sprite_num) << 16;
-  ret |= sprite_get_location(sprite_num);
+  ret |= ((unsigned long int)sprite_get_char(sprite_num));
+  ret |= (unsigned long int)sprite_get_location(sprite_num) << 16;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = 0x%08x\n", (int)ret); fflush(stdout);
+  printf("call : sprite_get_char_location() : return value = 0x%08x\n",
+	 (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -611,7 +637,7 @@ void sprite_set_data(unsigned int sprite_num, unsigned int count, void * data)
   char * d;
   unsigned long int * n;
 
-  printf("call : sprite_set_data() : number = %u, count = %u, data = %p",
+  printf("call : sprite_set_data() : number = %u, count = %u, data = %p\n",
 	 (int)sprite_num, (int)count, data); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -626,7 +652,7 @@ void sprite_set_data(unsigned int sprite_num, unsigned int count, void * data)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : sprite_set_data() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -635,7 +661,7 @@ void screen_set_scroll(int screen, int x, int y)
 {
   WWScreen s;
 
-  printf("call : screen_set_scroll() : scsreen = %d, x = %d, y = %d, ",
+  printf("call : screen_set_scroll() : screen = %d, x = %d, y = %d\n",
 	 screen, x, y); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -646,7 +672,7 @@ void screen_set_scroll(int screen, int x, int y)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : screen_set_scroll() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -656,7 +682,7 @@ unsigned int screen_get_scroll(int screen)
   unsigned short int ret;
   WWScreen s;
 
-  printf("call : screen_get_scroll() : screen = %d, ", screen); fflush(stdout);
+  printf("call : screen_get_scroll() : screen = %d\n", screen); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
@@ -666,9 +692,10 @@ unsigned int screen_get_scroll(int screen)
   ret |= WWScreen_GetRollX(s);
   ret |= WWScreen_GetRollY(s) << 8;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = %u\n", (int)ret); fflush(stdout);
+  printf("call : screen_get_scroll() : return value = %u\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -677,7 +704,7 @@ void screen2_set_window(int x, int y, int w, int h)
 {
   WWScreen s;
 
-  printf("call : screen2_set_window() : x = %d, y = %d, width = %d, height = %d, ",
+  printf("call : screen2_set_window() : x = %d, y = %d, width = %d, height = %d\n",
 	 x, y, w, h); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -690,7 +717,8 @@ void screen2_set_window(int x, int y, int w, int h)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : screen2_set_window() : return value = none\n");
+  fflush(stdout);
 
   return;
 }
@@ -704,39 +732,79 @@ unsigned long int screen2_get_window(void)
 
   if (wonx_display == NULL) Wonx_Create();
 
-  printf("call : screen2_get_window() : "); fflush(stdout);
+  printf("call : screen2_get_window() : \n"); fflush(stdout);
 
   s = WWDisplay_GetScreen(WonxDisplay_GetWWDisplay(wonx_display), SCREEN2);
-  
+
   xy =
-    ((WWScreen_GetDrawY(s) << 8) & 0xff00) |
-    (WWScreen_GetDrawX(s) & 0x00ff);
+    (((unsigned short int)WWScreen_GetDrawY(s) << 8) & 0xff00) |
+    ((unsigned short int)WWScreen_GetDrawX(s) & 0x00ff);
   wh =
-    ((WWScreen_GetDrawHeight(s) << 8) & 0xff00) |
-    (WWScreen_GetDrawWidth(s) & 0x00ff);
+    (((unsigned short int)WWScreen_GetDrawHeight(s) << 8) & 0xff00) |
+    ((unsigned short int)WWScreen_GetDrawWidth(s) & 0x00ff);
   ret = ((unsigned long int)wh) << 16 | xy;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = 0x%08x\n", (int)ret); fflush(stdout);
+  printf("call : screen2_get_window() : return value = 0x%08x\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
 
 void sprite_set_window(int x, int y, int w, int h)
 {
+  WWDisplay d;
+
+  printf("call : sprite_set_window() : x = %d, y = %d, w = %d, h = %d\n",
+	 x, y, w, h);
+  fflush(stdout);
+
   if (wonx_display == NULL) Wonx_Create();
-  /* あとで書くこと */
+
+  d = WonxDisplay_GetWWDisplay(wonx_display);
+
+  WWDisplay_SetSpriteWindowX(d, x);
+  WWDisplay_SetSpriteWindowY(d, y);
+  WWDisplay_SetSpriteWindowWidth(d, w);
+  WWDisplay_SetSpriteWindowHeight(d, h);
 
   WonxDisplay_Flush(wonx_display);
+
+  printf("call : sprite_set_window() : return value = none\n");
+  fflush(stdout);
+
+  return;
 }
 
 unsigned long int sprite_get_window(void)
 {
-  if (wonx_display == NULL) Wonx_Create();
-  /* あとで書くこと */
+  WWDisplay d;
+  unsigned short int xy;
+  unsigned short int wh;
+  unsigned long int ret;
 
-  WonxDisplay_Flush(wonx_display);
+  printf("call : sprite_get_window() : \n");
+  fflush(stdout);
+
+  if (wonx_display == NULL) Wonx_Create();
+
+  d = WonxDisplay_GetWWDisplay(wonx_display);
+
+  xy =
+    (((unsigned short int)WWDisplay_GetSpriteWindowY(d) << 8) & 0xff00) |
+    ((unsigned short int)WWDisplay_GetSpriteWindowX(d) & 0x00ff);
+  wh =
+    (((unsigned short int)WWDisplay_GetSpriteWindowHeight(d) << 8) & 0xff00) |
+    ((unsigned short int)WWDisplay_GetSpriteWindowWidth(d) & 0x00ff);
+  ret = ((unsigned long int)wh) << 16 | xy;
+
+  WonxDisplay_Sync(wonx_display);
+
+  printf("call : sprite_get_window() : return value = 0x%08x\n", (int)ret);
+  fflush(stdout);
+
+  return (ret);
 }
 
 void palette_set_color(unsigned int palette_num,
@@ -745,7 +813,7 @@ void palette_set_color(unsigned int palette_num,
   int mapped_colors[4];
   WWPalette palette;
 
-  printf("call : palette_set_color() : number = %u, colors = 0x%04x, ",
+  printf("call : palette_set_color() : number = %u, colors = 0x%04x\n",
 	 (int)palette_num, (int)colors); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -761,7 +829,7 @@ void palette_set_color(unsigned int palette_num,
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : palette_set_color() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -772,7 +840,7 @@ unsigned int palette_get_color(unsigned int palette_num)
   WWPalette palette;
   unsigned short int ret;
 
-  printf("call : palette_get_color() : number = %u, ", (int)palette_num);
+  printf("call : palette_get_color() : number = %u\n", (int)palette_num);
   fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -787,9 +855,10 @@ unsigned int palette_get_color(unsigned int palette_num)
   ret |= (mapped_colors[2] & 0x07) <<  8;
   ret |= (mapped_colors[3] & 0x07) << 12;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = %u\n", (int)ret); fflush(stdout);
+  printf("call : palette_get_color() : return value = %u\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -799,7 +868,7 @@ void lcd_set_color(unsigned int colors0, unsigned int colors1)
   WWColorMap color_map;
   int lcd_colors[8];
 
-  printf("call : lcd_set_color() : colors0 = 0x%04x, colors1 = 0x%04x, ",
+  printf("call : lcd_set_color() : colors0 = 0x%04x, colors1 = 0x%04x\n",
 	 (int)colors0, (int)colors1); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
@@ -818,7 +887,7 @@ void lcd_set_color(unsigned int colors0, unsigned int colors1)
 
   WonxDisplay_Flush(wonx_display);
 
-  printf("return value = none\n"); fflush(stdout);
+  printf("call : lcd_set_color() : return value = none\n"); fflush(stdout);
 
   return;
 }
@@ -829,7 +898,7 @@ unsigned long int lcd_get_color(void)
   int lcd_colors[8];
   unsigned long int ret;
 
-  printf("call : lcd_get_color() : "); fflush(stdout);
+  printf("call : lcd_get_color() : \n"); fflush(stdout);
 
   if (wonx_display == NULL) Wonx_Create();
 
@@ -837,18 +906,19 @@ unsigned long int lcd_get_color(void)
   WWColorMap_GetLCDColors(color_map, lcd_colors);
 
   ret = 0;
-  ret |=  lcd_colors[0] & 0x0f;
-  ret |= (lcd_colors[1] & 0x0f) <<  4;
-  ret |= (lcd_colors[2] & 0x0f) <<  8;
-  ret |= (lcd_colors[3] & 0x0f) << 12;
-  ret |=  lcd_colors[0] & 0x0f;
-  ret |= (lcd_colors[1] & 0x0f) <<  4;
-  ret |= (lcd_colors[2] & 0x0f) <<  8;
-  ret |= (lcd_colors[3] & 0x0f) << 12;
+  ret |=  (unsigned long int)lcd_colors[0] & 0x0f;
+  ret |= ((unsigned long int)lcd_colors[1] & 0x0f) <<  4;
+  ret |= ((unsigned long int)lcd_colors[2] & 0x0f) <<  8;
+  ret |= ((unsigned long int)lcd_colors[3] & 0x0f) << 12;
+  ret |=  (unsigned long int)lcd_colors[0] & 0x0f;
+  ret |= ((unsigned long int)lcd_colors[1] & 0x0f) <<  4;
+  ret |= ((unsigned long int)lcd_colors[2] & 0x0f) <<  8;
+  ret |= ((unsigned long int)lcd_colors[3] & 0x0f) << 12;
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 
-  printf("return value = 0x%08x\n", (int)ret); fflush(stdout);
+  printf("call : lcd_get_color() : return value = 0x%08x\n", (int)ret);
+  fflush(stdout);
 
   return (ret);
 }
@@ -866,7 +936,7 @@ unsigned lcd_get_segments(void)
   if (wonx_display == NULL) Wonx_Create();
   /* セグメント表示は未サポートか？ */
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 }
 
 void lcd_set_sleep(unsigned sleep)
@@ -874,7 +944,7 @@ void lcd_set_sleep(unsigned sleep)
   if (wonx_display == NULL) Wonx_Create();
   /* ? */
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 }
 
 unsigned lcd_get_sleep(void)
@@ -882,21 +952,21 @@ unsigned lcd_get_sleep(void)
   if (wonx_display == NULL) Wonx_Create();
   /* ? */
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 }
 
 void screen_set_vram(int screen, int locationID)
 {
   if (wonx_display == NULL) Wonx_Create();
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 }
 
 void sprite_set_vram(int locationID)
 {
   if (wonx_display == NULL) Wonx_Create();
 
-  WonxDisplay_Flush(wonx_display);
+  WonxDisplay_Sync(wonx_display);
 }
 
 /*****************************************************************************/
diff --git a/key.c b/key.c
index f3358d7..c0d1dff 100644
--- a/key.c
+++ b/key.c
@@ -21,6 +21,8 @@ int key_press_check(void)
 
   ret = XDisplay_GetKeyPress(x_display);
 
+  WonxDisplay_Sync(wonx_display);
+
   printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
 
   return (ret);
@@ -40,6 +42,8 @@ int key_hit_check(void)
 
   ret = XDisplay_GetKeyPress(x_display);
 
+  WonxDisplay_Sync(wonx_display);
+
   printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
 
   return (ret);
@@ -62,6 +66,8 @@ int key_wait(void)
     ret = XDisplay_GetKeyPress(x_display);
   } while (ret == 0);
 
+  WonxDisplay_Sync(wonx_display);
+
   printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
 
   return (ret);
@@ -74,7 +80,11 @@ void key_set_repeat(int rate, int delay)
 
   if (wonx_display == NULL) Wonx_Create();
 
+  WonxDisplay_Sync(wonx_display);
+
   printf("return value = none\n"); fflush(stdout);
+
+  return;
 }
 
 int key_get_repeat(void)
@@ -87,6 +97,8 @@ int key_get_repeat(void)
 
   ret = 0;
 
+  WonxDisplay_Sync(wonx_display);
+
   printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
 
   return (ret);
@@ -106,6 +118,8 @@ int key_hit_check_with_repeat(void)
 
   ret = XDisplay_GetKeyPress(x_display);
 
+  WonxDisplay_Sync(wonx_display);
+
   printf("return value = 0x%04x\n", (int)ret); fflush(stdout);
 
   return (ret);
diff --git a/timer.c b/timer.c
index 65cd0a3..d834731 100644
--- a/timer.c
+++ b/timer.c
@@ -1,4 +1,5 @@
 #include <stdlib.h>
+#include <time.h>
 
 #include <sys/timer.h>
 
@@ -6,28 +7,185 @@
 
 #include "WonxDisplay.h"
 
+typedef struct {
+  unsigned char year;
+  unsigned char month;
+  unsigned char date;
+  unsigned char day_of_week;
+  unsigned char hour;
+  unsigned char minute;
+  unsigned char second;
+} datetime_t;
+
+/* int tm_year; year - 1900 */
+static int get_year(struct tm * tblock) { return (tblock->tm_year - 100); }
+/* int tm_mon; month of year (0-11) */
+static int get_month(struct tm * tblock) { return (tblock->tm_mon + 1); }
+/* int tm_mday; day of month (1-31) */
+static int get_day(struct tm * tblock) { return (tblock->tm_mday); }
+/* int tm_wday; day of week (Sunday = 0) */
+static int get_week(struct tm * tblock) { return (tblock->tm_wday); }
+/* int tm_hour; hours (0 - 23) */
+static int get_hour(struct tm * tblock) { return (tblock->tm_hour); }
+/* int tm_min; minutes (0 - 59) */
+static int get_minute(struct tm * tblock) { return (tblock->tm_min); }
+/* int tm_sec; seconds (0 - 60) */
+static int get_second(struct tm * tblock) { return (tblock->tm_sec); }
+
 void rtc_set_datetime(int field, unsigned int value)
 {
+  printf("call : rtc_set_datetime() : field = %d, value = %d\n",
+	 field, (int)value);
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : rtc_set_datetime() : not supported\n");
+
+  printf("call : rtc_set_datetime() : return value = none\n");
+  fflush(stdout);
+
+  return;
 }
 
 unsigned int rtc_get_datetime(int field)
 {
-  unsigned int t;
-  t = (unsigned int)time(NULL); /* ここはてきとうなので，あとで修正すること */
-  return (t);
+  unsigned int ret;
+  time_t timer;
+  struct tm * tblock;
+
+  printf("call : rtc_get_datetime() : field = %d\n", field);
+  fflush(stdout);
+
+  time(&timer);
+  tblock = localtime(&timer);
+
+  switch (field) {
+  case RTC_YEAR        : ret = get_year(  tblock); break;
+  case RTC_MONTH       : ret = get_month( tblock); break;
+  case RTC_DATE        : ret = get_day(   tblock); break;
+  case RTC_DAY_OF_WEEK : ret = get_week(  tblock); break;
+  case RTC_HOUR        : ret = get_hour(  tblock); break;
+  case RTC_MIN         : ret = get_minute(tblock); break;
+  case RTC_SEC         : ret = get_second(tblock); break;
+  }
+
+  printf("call : rtc_get_datetime() : return value = %d\n", (int)ret);
+  fflush(stdout);
+
+  return (ret);
+}
+
+void rtc_set_datetime_struct(void * buffer)
+{
+  printf("call : rtc_set_datetime_struct() : buffer = %p\n", buffer);
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : rtc_set_datetime_struct() : not supported\n");
+
+  printf("call : rtc_set_datetime_struct() : return value = none\n");
+  fflush(stdout);
+
+  return;
+}
+
+void rtc_get_datetime_struct(void * buffer)
+{
+  time_t timer;
+  struct tm * tblock;
+  datetime_t * p;
+
+  printf("call : rtc_get_datetime_struct() : buffer = %p\n", buffer);
+  fflush(stdout);
+
+  time(&timer);
+  tblock = localtime(&timer);
+
+  p = (datetime_t *)buffer;
+
+  p->year = get_year(tblock);
+  p->month = get_month(tblock);
+  p->date = get_day(tblock);
+  p->day_of_week = get_week(tblock);
+  p->hour = get_hour(tblock);
+  p->minute = get_minute(tblock);
+  p->second = get_second(tblock);
+
+  printf("call : rtc_get_datetime_struct() : return value = none\n");
+  fflush(stdout);
+
+  return;
+}
+
+void rtc_enable_alarm(int hour, int minute)
+{
+  printf("call : rtc_enable_alarm() : hour = %d, minute = %d\n", hour, minute);
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : rtc_enable_alarm() : not supported\n");
+
+  printf("call : rtc_enable_alarm() : return value = none\n");
+  fflush(stdout);
+
+  return;
 }
 
-void rtc_set_datetime_struct(void * buf)
-{}
-void rtc_get_datetime_struct(void * buf)
-{}
-void rtc_enable_alarm(int hour, int min)
-{}
 void rtc_disable_alarm(void)
-{}
+{
+  printf("call : rtc_disable_alarm() : \n");
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : rtc_disable_alarm() : not supported\n");
+
+  printf("call : rtc_disable_alarm() : return value = none\n");
+  fflush(stdout);
+
+  return;
+}
+
 void timer_enable(int type, unsigned int auto_preset, unsigned int preset)
-{}
+{
+  printf("call : timer_enable() : type = %d, auto_preset = %u, preset = %u\n",
+	 type, (int)auto_preset, (int)preset);
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : timer_enable() : not supported\n");
+
+  printf("call : timer_enable() : return value = none\n");
+  fflush(stdout);
+
+  return;
+}
+
 void timer_disable(int type)
-{}
+{
+  printf("call : timer_disable() : type = %d\n", type);
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : timer_disable() : not supported\n");
+
+  printf("call : timer_disable() : return value = none\n");
+  fflush(stdout);
+
+  return;
+}
+
 unsigned int timer_get_count(int type)
-{}
+{
+  unsigned int ret = 0;
+
+  printf("call : timer_get_count() : type = %d\n", type);
+  fflush(stdout);
+
+  /* 未サポート */
+  printf("call : timer_get_count() : not supported\n");
+
+  printf("call : timer_get_count() : return value = %u\n", ret);
+  fflush(stdout);
+
+  return;
+}