1 files changed, 21 insertions, 27 deletions

diff --git a/src/main.c b/src/main.c
index 88bc3b8..decd40d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -13,6 +13,16 @@
 // TODO: Cleanup OBJ/OAM memory copying and access.
 //
 
+//
+// BIOS calls
+//
+
+int bios_div(int num, int denom);
+
+int normal_div(int num, int denom) {
+    return num / denom;
+};
+
 int main(void) {
     // Configure the display in mode 0 to show OBJs, where tile memory is
     // sequential.
@@ -22,42 +32,26 @@ int main(void) {
     init_sprite_pal(0, COLOR_WHITE);
     init_sprites(0);
     init_button_sprites();
-    Color colors[16] = {
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-        COLOR_BLUE,
-    };
 
-    size_t n_iter = 10000;
+    // Initialize text engine.
+    txt_init(0, COLOR_RED, 0);
+
+    size_t n_iter = 1000;
     profile_start();
+    int test = 0;
     for (size_t i = 0; i < n_iter; ++i) {
-        dma_copy(&PAL_BUFFER_SPRITES[0], colors, 16 * sizeof(Color), 3);
+        txt_printf("Bios div:   %d\n", bios_div(5 * i, 5));
     }
-    u32 dma_copy_perf = profile_stop();
+    u32 bios_div_perf = profile_stop();
 
     profile_start();
     for (size_t i = 0; i < n_iter; ++i) {
-        memcpy(&PAL_BUFFER_SPRITES[0], colors, 16 * sizeof(Color));
+        txt_printf("Code div:   %d\n", normal_div(5 * i, 5));
     }
-    u32 memcpy_perf = profile_stop();
+    u32 code_perf = profile_stop();
 
-    // Initialize text engine.
-    txt_init(0, COLOR_RED, 0);
-    txt_printf("N. cycles memcpy:   %d\n", memcpy_perf);
-    txt_printf("N. cycles dma_copy: %d\n", dma_copy_perf);
+    txt_printf("C code div perf:   %d\n", code_perf);
+    txt_printf("BIOS div perf:     %d\n", bios_div_perf);
 
     int frame_counter = 0;
     while(true) {