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fix(ppu): properly implement $8800 addressing mode

This commit is contained in:
Rekai Nyangadzayi Musuka 2021-06-10 00:35:15 -05:00
parent 17024c439a
commit 482d226cd6
1 changed files with 1 additions and 1 deletions
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2
src/ppu.rs
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@ -696,7 +696,7 @@ impl PixelFetcher {
let id = self.back.tile.id.expect("Tile Number unexpectedly missing"); let id = self.back.tile.id.expect("Tile Number unexpectedly missing");
let tile_data_addr = match control.tile_data_addr() { let tile_data_addr = match control.tile_data_addr() {
TileDataAddress::X8800 => 0x9000u16.wrapping_add((id as u16) * 16), TileDataAddress::X8800 => 0x9000u16.wrapping_add(((id as i8) as i16 * 16) as u16),
TileDataAddress::X8000 => 0x8000 + (id as u16 * 16), TileDataAddress::X8000 => 0x8000 + (id as u16 * 16),
}; };