diff --git a/apps/examples/circle-raster/game.c b/apps/examples/circle-raster/game.c
index 2f2d6c7..b11be76 100644
--- a/apps/examples/circle-raster/game.c
+++ b/apps/examples/circle-raster/game.c
@@ -76,6 +76,26 @@ static void benchmark(struct state *state) {
 
     profile_end("int32_t acc");
 
+    profile_start("int32_t acc precalc");
+
+    for (int i = 0; i < 1000; ++i) {
+        int32_t const rsi = (int32_t)state->r * (int32_t)state->r;
+        int32_t acc = (int32_t)(sqrtf(state->r * state->r - (state->r - 1) * (state->r - 1)));
+        for (int32_t iy = (int32_t)state->r - 1; iy >= 0; --iy) {
+            while (acc * acc < rsi - iy * iy) acc++;
+            for (int32_t ix = -acc; ix < acc; ++ix) {
+                /* lower portion */
+                x = (float)ix;
+                y = (float)iy;
+                /* upper portion */
+                x = (float)ix;
+                y = (float)(int32_t)(~(uint32_t)iy);
+            }
+        }
+    }
+
+    profile_end("int32_t acc precalc");
+
     (void)x; (void)y;
 }
 
@@ -85,7 +105,7 @@ void game_tick(void) {
         if (!ctx.udata) {
             ctx.udata = ccalloc(1, sizeof (struct state));
             struct state *state = ctx.udata;
-            state->r = 10;
+            state->r = 24;
         }
     }