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Initial hardware registers

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This commit is contained in:
Franco Colmenarez 2021-11-15 17:25:43 -05:00
parent 6104f5b077
commit 71692a05a5
1 changed files with 28 additions and 27 deletions
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55
src/bus.rs
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@ -48,37 +48,38 @@ impl Bus {
std::process::exit(1); std::process::exit(1);
}, },
}; };
let mut data = [0x00; 0x10000]; let mut bus = Self {
// Hardware registers after the bootrom data: [0x00; 0x10000],
data[0xFF00] = 0xCF;
data[0xFF01] = 0x00;
data[0xFF02] = 0x7E;
data[0xFF04] = 0x18;
data[0xFF05] = 0x00;
data[0xFF06] = 0x00;
data[0xFF07] = 0xF8;
data[0xFF0F] = 0xE1;
data[0xFF40] = 0x91;
data[0xFF41] = 0x81;
data[0xFF42] = 0x00;
data[0xFF43] = 0x00;
data[0xFF44] = 0x91;
data[0xFF45] = 0x00;
data[0xFF46] = 0xFF;
data[0xFF47] = 0xFC;
data[0xFF4A] = 0x00;
data[0xFF4B] = 0x00;
data[0xFFFF] = 0x00;
Self {
data,
game_rom, game_rom,
ppu: PPU::new(), ppu: PPU::new(),
joypad: Joypad::new(), joypad: Joypad::new(),
timer: Timer::new(), timer: Timer::new(),
} };
// Hardware registers after the bootrom
bus.write(0xFF00, 0xCF);
bus.write(0xFF01, 0x00);
bus.write(0xFF02, 0x7E);
bus.write(0xFF04, 0x18);
bus.write(0xFF05, 0x00);
bus.write(0xFF06, 0x00);
bus.write(0xFF07, 0xF8);
bus.write(0xFF0F, 0xE1);
bus.write(0xFF40, 0x91);
bus.write(0xFF41, 0x81);
bus.write(0xFF42, 0x00);
bus.write(0xFF43, 0x00);
bus.write(0xFF44, 0x91);
bus.write(0xFF45, 0x00);
bus.write(0xFF46, 0xFF);
bus.write(0xFF47, 0xFC);
bus.write(0xFF4A, 0x00);
bus.write(0xFF4B, 0x00);
bus.write(0xFFFF, 0x00);
bus
} }
pub fn read(&self, address: u16) -> u8 { pub fn read(&self, address: u16) -> u8 {