diff options
Diffstat (limited to 'mknes_ppu.c')
| -rw-r--r-- | mknes_ppu.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/mknes_ppu.c b/mknes_ppu.c index 870439b..1a40de0 100644 --- a/mknes_ppu.c +++ b/mknes_ppu.c @@ -322,13 +322,22 @@ shift_and_fetch: } } } + + goto rendering_done; + } + + if(dot == 256) { // NOTE(peter): THIS IS EXPENSIVE + ppu->sprite_count = 0; } +rendering_done: + if(dot == 1) { switch(scanline) { case 241: { ppu->reg_status |= PPU_STATUS_VBLANK; state->cpu.nmi_pending = (ppu->reg_ctrl & PPU_CTRL_NMI); + ppu->frame_ready = 1; } break; case 261: { @@ -339,6 +348,7 @@ shift_and_fetch: } } + dot++; if(dot > 340) { dot = 0; @@ -350,7 +360,6 @@ shift_and_fetch: if(scanline > 261) { scanline = 0; - ppu->frame_ready = 1; ppu->even_frame = !ppu->even_frame; } |