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Adjust lo_rom mapping

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FranLMSP
2023-05-15 21:57:30 -05:00
parent a44895645c
commit cc5f57c911
1 changed files with 7 additions and 0 deletions
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snes-core/src/rom/lo_rom.rs
+7
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@@ -10,6 +10,12 @@ impl LoROM {
data: vec![], data: vec![],
} }
} }
pub fn adjust_address(address: u32) -> u32 {
let page = (address >> 16) & 0x7F;
let address = address & 0x7FFF;
(page << 16) | address
}
} }
impl ROM for LoROM { impl ROM for LoROM {
@@ -18,6 +24,7 @@ impl ROM for LoROM {
} }
fn read(&self, address: u32) -> u8 { fn read(&self, address: u32) -> u8 {
let address = LoROM::adjust_address(address);
match self.data.get(address as usize) { match self.data.get(address as usize) {
Some(byte) => *byte, Some(byte) => *byte,
None => 0xFF, None => 0xFF,