From 2e4854c2ff57e816def89ef8c26424945433c480 Mon Sep 17 00:00:00 2001
From: Rekai Musuka <rekai@musuka.dev>
Date: Thu, 3 Mar 2022 01:36:40 -0400
Subject: [PATCH] chore: add some type definitions for sprites

---
 src/ppu.zig | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/ppu.zig b/src/ppu.zig
index 33a669e..6c8784c 100644
--- a/src/ppu.zig
+++ b/src/ppu.zig
@@ -366,3 +366,28 @@ const ScreenEntry = extern union {
     palette_bank: Bitfield(u16, 12, 4),
     raw: u16,
 };
+
+const Attr0 = extern union {
+    y: Bitfield(u16, 0, 8),
+    rot_scaling: Bit(u16, 8), // This SBZ
+    disabled: Bit(u16, 9),
+    mode: Bitfield(u16, 10, 2),
+    mosaic: Bit(u16, 12),
+    is_8bpp: Bit(u16, 13),
+    shape: Bit(u16, 14, 2),
+    raw: u16,
+};
+
+const Attr1 = extern union {
+    x: Bitfield(u16, 0, 9),
+    h_flip: Bit(u16, 12),
+    v_flip: Bit(u16, 13),
+    size: Bitfield(u16, 14, 2),
+    raw: u16,
+};
+
+const Attr2 = extern union {
+    tile_id: Bitfield(u16, 0, 10),
+    rel_prio: Bitfield(u16, 10, 2),
+    pal_id: Bitfield(u16, 12, 3),
+};