diff --git a/lib/2d.c b/lib/2d.c
index 230c681..57298f8 100755
--- a/lib/2d.c
+++ b/lib/2d.c
@@ -80,12 +80,14 @@ void trianglefilled(vertex2d *AA, vertex2d *BB, vertex2d *CC, u8 color) {
     A=AA;
     B=BB;
     C=CC;
-    if (A->y > B->y) 
-        swapvertex(A,B);
-    if (B->y > C->y) 
-        swapvertex(B,C);
-    if (A->y > C->y) 
-        swapvertex(A,C);
+    while(A->y > B->y || B->y > C->y || A->y == C->y) {
+        if (A->y > B->y) 
+            swapvertex(A,B);
+        if (B->y > C->y) 
+            swapvertex(B,C);
+        if (A->y > C->y) 
+            swapvertex(A,C);
+    }
     if(A->y == C->y) { //meme ligne
     	a = b = A->x;
     	if(B->x < a)      a = B->x;
diff --git a/system/system.c b/system/system.c
index b1b37d0..422127c 100755
--- a/system/system.c
+++ b/system/system.c
@@ -94,14 +94,6 @@ void test2d() {
     setvmode(0x84);
     fill(0x00);
     struct vertex2d a,b,c;
-        a.x=230;
-        a.y=157;
-        b.x=375;
-        b.y=29;
-        c.x=278;
-        c.y=276;
-        trianglefilled(&a,&b,&c,random(0, 16));
-        triangle(&a,&b,&c,2);
     randomize();
     for(int i=0;i<3200;i++)
     {
@@ -113,8 +105,6 @@ void test2d() {
         c.y=random(0, 600);
         trianglefilled(&a,&b,&c,random(0, 16));
         triangle(&a,&b,&c,2);
-        printf("\r\nA:%d,%d B:%d,%d C:%d,%d",a.x,a.y,b.x,b.y,c.x,c.y); 
-       waitascii();
     }
 }