diff --git a/emulator_shell.c b/emulator_shell.c
index 13340f0..c2396f5 100644
--- a/emulator_shell.c
+++ b/emulator_shell.c
@@ -998,11 +998,41 @@ typedef struct cpu_data {
 
 static void draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
     int x, y;
-    int upscaleFactor = 4;
+    int upscaleFactor = 3;
+    uint8_t *video = malloc(sizeof(uint8_t) * 224 * 256 * 4);
+
+    //ROTATION ALGORITHM
+    for (int i=0; i< 224; i++)
+    {
+        for (int j = 0; j < 256; j+= 8)
+        {
+            int p;
+            //Read the first 1-bit pixel
+            // divide by 8 because there are 8 pixels
+            // in a byte
+            unsigned char pix = bitmap[(i*(256/8)) + j/8];
+            
+            //That makes 8 output vertical pixels
+            // we need to do a vertical flip
+            // so j needs to start at the last line
+            // and advance backward through the buffer
+            int offset = (255-j)*(224*4) + (i*4);
+            unsigned int *p1 = (unsigned int*)(&video[offset]);
+            for (p=0; p<8; p++)
+            {
+                if ( 0!= (pix & (1<<p)))
+                    *p1 = 1;
+                else
+                    *p1 = 0;
+                p1-=224;  //next line
+            }
+        }
+    }
+    // RENDERING GRAPHICS
     
-    for (x = 0; x < WIDTH; x++) {
-        for (y = 0; y < HEIGHT; y++) {
-            if (bitmap[y * WIDTH + x]) {
+    for (x = 0; x < 224; x++) {
+        for (y = 0; y < 256; y++) {
+            if (video[y * 224 + x]) {
                 cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); // Set color to white
             } else {
                 cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); // Set color to black
@@ -1012,6 +1042,7 @@ static void draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
             cairo_fill(cr);
         }
     }
+    free(video);
 }
 
 void *cpu(void* arg) {