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chore: rewrite read/write methods for remainig Bus devices

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This commit is contained in:
Rekai Nyangadzayi Musuka
2022-04-08 01:18:58 -03:00
parent 5310c12669
commit aac01b0bfe
7 changed files with 176 additions and 163 deletions
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17
src/bus/GamePak.zig
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@@ -60,14 +60,13 @@ pub fn deinit(self: Self) void {
self.backup.deinit();
}
pub fn get32(self: *const Self, idx: usize) u32 {
return (@as(u32, self.get16(idx + 2)) << 16) | @as(u32, self.get16(idx));
}
pub fn read(self: *const Self, comptime T: type, address: u32) T {
const addr = address & 0x1FF_FFFF;
pub fn get16(self: *const Self, idx: usize) u16 {
return (@as(u16, self.buf[idx + 1]) << 8) | @as(u16, self.buf[idx]);
}
pub fn get8(self: *const Self, idx: usize) u8 {
return self.buf[idx];
return switch (T) {
u32 => (@as(T, self.buf[addr + 3]) << 24) | (@as(T, self.buf[addr + 2]) << 16) | (@as(T, self.buf[addr + 1]) << 8) | (@as(T, self.buf[addr])),
u16 => (@as(T, self.buf[addr + 1]) << 8) | @as(T, self.buf[addr]),
u8 => self.buf[addr],
else => @compileError("GamePak: Unsupported read width"),
};
}