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-rw-r--r--src/ppu.rs6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/ppu.rs b/src/ppu.rs
index b13feb7..7f8a39d 100644
--- a/src/ppu.rs
+++ b/src/ppu.rs
@@ -47,7 +47,6 @@ pub struct PPU<'a> {
sp_bitmap: [[u8; 2]; 8],
sp_idx: [usize; 8],
sp_cnt: [u8; 8],
- sp_zero_insight: bool,
rendering: bool,
buffered_read: u8,
early_read: bool,
@@ -422,8 +421,8 @@ impl<'a> PPU<'a> {
match self.get_sp_pidx(i) {
0x0 => (),
pidx => {
- if bg_pidx != 0 && self.sp_idx[i] == 0 && x != 0xff {
- assert!(i == 0);
+ if bg_pidx != 0 && self.sp_idx[i] == 0 &&
+ x != 0xff && s.y != 0xff {
self.ppustatus |= PPU::FLAG_SPRITE_ZERO; /* set sprite zero hit */
}
sp_pidx = pidx;
@@ -477,7 +476,6 @@ impl<'a> PPU<'a> {
sp_idx: [0x100; 8],
sp_bitmap: [[0; 2]; 8],
sp_cnt: [0; 8],
- sp_zero_insight: false,
rendering: false,
buffered_read,
early_read: false,