through sub_80063D8

1 files changed, 71 insertions, 1 deletions

diff --git a/src/text.c b/src/text.c
index 929d8b1..3d60416 100644
--- a/src/text.c
+++ b/src/text.c
@@ -6,6 +6,7 @@
 #include "global.h"
 #include "file_system.h"
 #include "code_800558C.h"
+#include "code_800B540.h"
 
 struct UnkTextStruct1 {
     u8 fill00[4];
@@ -21,6 +22,7 @@ EWRAM_DATA u8 *gUnknown_2027490[2];
 EWRAM_DATA u16 gUnknown_2027498;
 EWRAM_DATA u8 gUnknown_20274A5;
 EWRAM_DATA u32 gUnknown_20274AC;
+EWRAM_DATA vu32 gUnknown_20274B0;
 EWRAM_DATA struct OpenedFile *gUnknown_202AFB4[2];
 EWRAM_DATA u32 gUnknown_202B020;
 EWRAM_DATA u32 gUnknown_202B024;
@@ -29,11 +31,13 @@ EWRAM_DATA u32 gUnknown_202B030;
 EWRAM_DATA u8 gUnknown_202B034;
 EWRAM_DATA u16 gUnknown_202B038[2][32][32];
 
-void xxx_update_some_bg_tiles(int a0);
+u32 xxx_update_some_bg_tiles(u32 a0);
 
 extern const char gUnknown_80B87B4[];
 extern const char gUnknown_80B87BC[];
 extern const struct FileArchive gUnknown_8300500;
+extern const u32 gUnknown_80B87C4[8];
+extern const u32 gUnknown_80B87E4[8];
 
 void sub_8006218(void)
 {
@@ -73,3 +77,69 @@ void sub_8006218(void)
     gUnknown_202B024 = 20;
     xxx_update_some_bg_tiles(0);
 }
+
+u32 xxx_update_some_bg_tiles(u32 a0)
+{
+    u32 r5 = gUnknown_20274B0;
+    u32 *r4 = (u32 *)(VRAM + 0x4f40);
+    const u32 *r2;
+    gUnknown_20274B0 = a0;
+    if (a0 == 0 || a0 == 2)
+    {
+        sub_800CDA8(2);
+        r2 = gUnknown_80B87C4;
+    }
+    else
+    {
+        sub_800CDA8(1);
+        r2 = gUnknown_80B87E4;
+    }
+    gUnknown_202B030 = 0x88888888;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    *r4++ = *r2++;
+    return r5;
+}
+
+u32 sub_80063B0(void)
+{
+    return gUnknown_20274B0;
+}
+
+u8 sub_80063BC(u8 a0)
+{
+    u8 retval = gUnknown_202B034;
+    gUnknown_202B034 = a0;
+    return retval;
+}
+
+void sub_80063CC(u32 a0)
+{
+    gUnknown_20274AC = a0;
+}
+
+void sub_80063D8(int a0)
+{
+    u32 retval;
+    if (a0 == 0)
+    {
+        gUnknown_20274B0;
+        retval = 0x88888888;
+    }
+    else
+    {
+        retval = (a0 & 0xf) | ((a0 & 0xf) << 4);
+        retval |= ((a0 & 0xf) << 8);
+        retval |= ((a0 & 0xf) << 12);
+        retval |= ((a0 & 0xf) << 16);
+        retval |= ((a0 & 0xf) << 20);
+        retval |= ((a0 & 0xf) << 24);
+        retval |= ((a0 & 0xf) << 28);
+    }
+    gUnknown_202B030 = retval;
+}