diff --git a/29_day/Makefile b/29_day/Makefile
index e37ec29..1963c4e 100644
--- a/29_day/Makefile
+++ b/29_day/Makefile
@@ -21,7 +21,8 @@ haribote.img : haribote/ipl20.bin haribote/haribote.sys Makefile \
 		lines/lines.hrb walk/walk.hrb noodle/noodle.hrb \
 		beepdown/beepdown.hrb color/color.hrb color2/color2.hrb \
 		sosu/sosu.hrb sosu2/sosu2.hrb sosu3/sosu3.hrb \
-		type/type.hrb iroha/iroha.hrb chklang/chklang.hrb
+		type/type.hrb iroha/iroha.hrb chklang/chklang.hrb \
+		notrec/notrec.hrb bball/bball.hrb
 	$(EDIMG)   imgin:../z_tools/fdimg0at.tek \
 		wbinimg src:haribote/ipl20.bin len:512 from:0 to:0 \
 		copy from:haribote/haribote.sys to:@: \
@@ -49,8 +50,9 @@ haribote.img : haribote/ipl20.bin haribote/haribote.sys Makefile \
 		copy from:type/type.hrb to:@: \
 		copy from:iroha/iroha.hrb to:@: \
 		copy from:chklang/chklang.hrb to:@: \
-		copy from:notrec/notrec.hrb to:@: \
 		copy from:euc.txt to:@: \
+		copy from:notrec/notrec.hrb to:@: \
+		copy from:bball/bball.hrb to:@: \
 		copy from:nihongo/nihongo.fnt to:@: \
 		imgout:haribote.img
 
@@ -68,7 +70,6 @@ install :
 full :
 	$(MAKE) -C haribote
 	$(MAKE) -C apilib
-	$(MAKE) -C stdlib
 	$(MAKE) -C a
 	$(MAKE) -C hello3
 	$(MAKE) -C hello4
@@ -92,6 +93,7 @@ full :
 	$(MAKE) -C iroha
 	$(MAKE) -C chklang
 	$(MAKE) -C notrec
+	$(MAKE) -C bball
 	$(MAKE) haribote.img
 
 run_full :
@@ -116,59 +118,59 @@ src_only :
 
 clean_full :
 	$(MAKE) -C haribote		clean
-	$(MAKE) -C apilib			clean
-	$(MAKE) -C stdlib			clean
-	$(MAKE) -C a					clean
-	$(MAKE) -C hello3			clean
-	$(MAKE) -C hello4			clean
-	$(MAKE) -C hello5			clean
+	$(MAKE) -C apilib		clean
+	$(MAKE) -C a			clean
+	$(MAKE) -C hello3		clean
+	$(MAKE) -C hello4		clean
+	$(MAKE) -C hello5		clean
 	$(MAKE) -C winhelo		clean
 	$(MAKE) -C winhelo2		clean
 	$(MAKE) -C winhelo3		clean
-	$(MAKE) -C star1			clean
-	$(MAKE) -C stars			clean
-	$(MAKE) -C stars2			clean
-	$(MAKE) -C lines			clean
-	$(MAKE) -C walk				clean
-	$(MAKE) -C noodle			clean
+	$(MAKE) -C star1		clean
+	$(MAKE) -C stars		clean
+	$(MAKE) -C stars2		clean
+	$(MAKE) -C lines		clean
+	$(MAKE) -C walk			clean
+	$(MAKE) -C noodle		clean
 	$(MAKE) -C beepdown		clean
-	$(MAKE) -C color			clean
-	$(MAKE) -C color2			clean
-	$(MAKE) -C sosu				clean
-	$(MAKE) -C sosu2			clean
-	$(MAKE) -C sosu3			clean
-	$(MAKE) -C type				clean
-	$(MAKE) -C iroha			clean
+	$(MAKE) -C color		clean
+	$(MAKE) -C color2		clean
+	$(MAKE) -C sosu			clean
+	$(MAKE) -C sosu2		clean
+	$(MAKE) -C sosu3		clean
+	$(MAKE) -C type			clean
+	$(MAKE) -C iroha		clean
 	$(MAKE) -C chklang		clean
-	$(MAKE) -C notrec			clean
+	$(MAKE) -C notrec		clean
+	$(MAKE) -C bball		clean
 
 src_only_full :
 	$(MAKE) -C haribote		src_only
-	$(MAKE) -C apilib			src_only
-	$(MAKE) -C stdlib			src_only
-	$(MAKE) -C a					src_only
-	$(MAKE) -C hello3			src_only
-	$(MAKE) -C hello4			src_only
-	$(MAKE) -C hello5			src_only
+	$(MAKE) -C apilib		src_only
+	$(MAKE) -C a			src_only
+	$(MAKE) -C hello3		src_only
+	$(MAKE) -C hello4		src_only
+	$(MAKE) -C hello5		src_only
 	$(MAKE) -C winhelo		src_only
 	$(MAKE) -C winhelo2		src_only
 	$(MAKE) -C winhelo3		src_only
-	$(MAKE) -C star1			src_only
-	$(MAKE) -C stars			src_only
-	$(MAKE) -C stars2			src_only
-	$(MAKE) -C lines			src_only
-	$(MAKE) -C walk				src_only
-	$(MAKE) -C noodle			src_only
+	$(MAKE) -C star1		src_only
+	$(MAKE) -C stars		src_only
+	$(MAKE) -C stars2		src_only
+	$(MAKE) -C lines		src_only
+	$(MAKE) -C walk			src_only
+	$(MAKE) -C noodle		src_only
 	$(MAKE) -C beepdown		src_only
-	$(MAKE) -C color			src_only
-	$(MAKE) -C color2			src_only
-	$(MAKE) -C sosu				src_only
-	$(MAKE) -C sosu2			src_only
-	$(MAKE) -C sosu3			src_only
-	$(MAKE) -C type				src_only
-	$(MAKE) -C iroha			src_only
+	$(MAKE) -C color		src_only
+	$(MAKE) -C color2		src_only
+	$(MAKE) -C sosu			src_only
+	$(MAKE) -C sosu2		src_only
+	$(MAKE) -C sosu3		src_only
+	$(MAKE) -C type			src_only
+	$(MAKE) -C iroha		src_only
 	$(MAKE) -C chklang		src_only
-	$(MAKE) -C notrec			src_only
+	$(MAKE) -C notrec		src_only
+	$(MAKE) -C bball		src_only
 	-$(DEL) haribote.img
 
 refresh :
diff --git a/29_day/bball/!cons_9x.bat b/29_day/bball/!cons_9x.bat
new file mode 100644
index 0000000..e42252a
--- /dev/null
+++ b/29_day/bball/!cons_9x.bat
@@ -0,0 +1 @@
+command
\ No newline at end of file
diff --git a/29_day/bball/!cons_nt.bat b/29_day/bball/!cons_nt.bat
new file mode 100644
index 0000000..6e07473
--- /dev/null
+++ b/29_day/bball/!cons_nt.bat
@@ -0,0 +1 @@
+cmd.exe
\ No newline at end of file
diff --git a/29_day/bball/Makefile b/29_day/bball/Makefile
new file mode 100644
index 0000000..b976252
--- /dev/null
+++ b/29_day/bball/Makefile
@@ -0,0 +1,5 @@
+APP      = bball
+STACK    = 52k
+MALLOC   = 0k
+
+include ../app_make.txt
diff --git a/29_day/bball/bball.c b/29_day/bball/bball.c
new file mode 100644
index 0000000..23a5d67
--- /dev/null
+++ b/29_day/bball/bball.c
@@ -0,0 +1,37 @@
+#include "apilib.h"
+
+void HariMain(void)
+{
+	int win, i, j, dis;
+	char buf[216 * 237];
+	struct POINT {
+		int x, y;
+	};
+	static struct POINT table[16] = {
+		{ 204, 129 }, { 195,  90 }, { 172,  58 }, { 137,  38 }, {  98,  34 },
+		{  61,  46 }, {  31,  73 }, {  15, 110 }, {  15, 148 }, {  31, 185 },
+		{  61, 212 }, {  98, 224 }, { 137, 220 }, { 172, 200 }, { 195, 168 },
+		{ 204, 129 }
+	};
+
+	win = api_openwin(buf, 216, 237, -1, "bball");
+	api_boxfilwin(win, 8, 29, 207, 228, 0);
+	for (i = 0; i <= 14; i++) {
+		for (j = i + 1; j <= 15; j++) {
+			dis = j - i; /*两点间的距离*/
+			if (dis >= 8) {
+				dis = 15 - dis; /*逆向计数*/
+			}
+			if (dis != 0) {
+				api_linewin(win, table[i].x, table[i].y, table[j].x, table[j].y, 8 - dis);
+			}
+		}
+	}
+
+	for (;;) {
+		if (api_getkey(1) == 0x0a) {
+			break; /*按下回车键则break; */
+		}
+	}
+	api_end();
+}
diff --git a/29_day/bball/make.bat b/29_day/bball/make.bat
new file mode 100644
index 0000000..6b0dbfc
--- /dev/null
+++ b/29_day/bball/make.bat
@@ -0,0 +1 @@
+..\..\z_tools\make.exe %1 %2 %3 %4 %5 %6 %7 %8 %9
\ No newline at end of file
diff --git a/29_day/haribote/console.c b/29_day/haribote/console.c
index 44047b0..3e51686 100644
--- a/29_day/haribote/console.c
+++ b/29_day/haribote/console.c
@@ -489,6 +489,16 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		sht = (struct SHEET *) (ebx & 0xfffffffe);
 		hrb_api_linewin(sht, eax, ecx, esi, edi, ebp);
 		if ((ebx & 1) == 0) {
+			if (eax > esi) {
+				i = eax;
+				eax = esi;
+				esi = i;
+			}
+			if (ecx > edi) {
+				i = ecx;
+				ecx = edi;
+				edi = i;
+			}
 			sheet_refresh(sht, eax, ecx, esi + 1, edi + 1);
 		}
 	} else if (edx == 14) {