diff options
Diffstat (limited to 'software/pong3/pong3.c')
| -rw-r--r-- | software/pong3/pong3.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/software/pong3/pong3.c b/software/pong3/pong3.c index 09240ff..4b9c229 100644 --- a/software/pong3/pong3.c +++ b/software/pong3/pong3.c @@ -24,6 +24,22 @@ gpu_write (unsigned int reg, unsigned int data) IOWR (GPU_0_BASE, reg << 2, data); } + +static void +update_gpu (int x, int y, int bat0, int bat1) +{ + // set locations + gpu_write (GPU_REG_SPRITE_X, x + GPU_OFFSET); + gpu_write (GPU_REG_SPRITE_Y, y + GPU_OFFSET); + gpu_write (GPU_REG_BAT0_Y, bat0 + GPU_OFFSET); + gpu_write (GPU_REG_BAT1_Y, bat1 + GPU_OFFSET); + + + // enable video + gpu_write (GPU_REG_BLANK, 0); +} + + static void show_score (int score) { @@ -242,13 +258,7 @@ main (void) move_bat (&bat0, dbat0); move_bat (&bat1, dbat1); - - gpu_write (1, x + GPU_OFFSET); - gpu_write (2, y + GPU_OFFSET); - gpu_write (3, bat0 + GPU_OFFSET); - gpu_write (4, bat1 + GPU_OFFSET); - - gpu_write (0, 0); + update_gpu (x, y, bat0, bat1); msleep (2); } @@ -272,14 +282,7 @@ main (void) move_bat (&bat0, dbat0); move_bat (&bat1, dbat1); - - gpu_write (1, x + GPU_OFFSET); - gpu_write (2, y + GPU_OFFSET); - gpu_write (3, bat0 + GPU_OFFSET); - gpu_write (4, bat1 + GPU_OFFSET); - - gpu_write (0, 0); - + update_gpu (x, y, bat0, bat1); msleep (2); } |