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feat: add support for multiple BGs in Mode 0

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This commit is contained in:
Rekai Nyangadzayi Musuka
2022-02-16 03:27:06 -04:00
parent d2d4667f7b
commit ce97a52868
2 changed files with 74 additions and 69 deletions
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6
src/bus/io.zig
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@@ -164,9 +164,9 @@ pub fn write16(bus: *Bus, addr: u32, halfword: u16) void {
switch (addr) {
0x0400_0000 => bus.ppu.dispcnt.raw = halfword,
0x0400_0004 => bus.ppu.dispstat.raw = halfword,
0x0400_0008 => bus.ppu.bg0.cnt.raw = halfword,
0x0400_0010 => bus.ppu.bg0.hofs.raw = halfword,
0x0400_0012 => bus.ppu.bg0.vofs.raw = halfword,
0x0400_0008 => bus.ppu.bg[0].cnt.raw = halfword,
0x0400_0010 => bus.ppu.bg[0].hofs.raw = halfword,
0x0400_0012 => bus.ppu.bg[0].vofs.raw = halfword,
0x0400_0200 => bus.io.ie.raw = halfword,
0x0400_0202 => bus.io.irq.raw = halfword,
0x0400_0208 => bus.io.ime = halfword & 1 == 1,