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chore(bus): remove panics in IO bus read/write failures with stderr msgs

This commit is contained in:
Rekai Nyangadzayi Musuka 2021-07-18 21:45:09 -05:00
parent 4fda7587ce
commit f429d72882
1 changed files with 5 additions and 3 deletions
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8
src/bus.rs
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@ -256,7 +256,10 @@ impl BusIo for Bus {
0x4A => self.ppu.pos.window_y, 0x4A => self.ppu.pos.window_y,
0x4B => self.ppu.pos.window_x, 0x4B => self.ppu.pos.window_x,
0x4D => 0xFF, // CGB Specific Register 0x4D => 0xFF, // CGB Specific Register
_ => unimplemented!("Unable to read {:#06X} in I/O Registers", addr), _ => {
eprintln!("Read 0xFF from unused IO register {:#06X}.", addr);
0xFF
}
} }
} }
0xFF80..=0xFFFE => { 0xFF80..=0xFFFE => {
@ -392,8 +395,7 @@ impl BusIo for Bus {
self.boot = None; self.boot = None;
} }
} }
0x7F => {} // Tetris tries to write to this non-existent IO Address _ => eprintln!("Wrote {:#04X} to unused IO register {:#06X}.", byte, addr),
_ => unimplemented!("Unable to write to {:#06X} in I/O Registers", addr),
}; };
} }
0xFF80..=0xFFFE => { 0xFF80..=0xFFFE => {