1 files changed, 200 insertions, 0 deletions
diff --git a/src/text.c b/src/text.c
new file mode 100644
index 0000000..5d93844
--- /dev/null
+++ b/src/text.c
@@ -0,0 +1,200 @@
+#include "global.h"
+#include "file_system.h"
+#include "code_800558C.h"
+#include "code_800B540.h"
+
+struct UnkTextStruct1 {
+    u8 fill00[4];
+    u16 unk04;
+    u8 fill06[2];
+    u16 unk08;
+    u8 fill04[0x3c];
+    u8 unk46;
+};
+
+struct UnkTextStruct2 {
+    u8 fill00[0x0c];
+    s16 unk0c;
+    u8 fill0e[2];
+    s16 unk10;
+    u8 fill12[0x06];
+};
+
+extern char gUnknown_3000E94[];
+
+EWRAM_DATA struct UnkTextStruct1 gUnknown_2027370[4];
+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 u8 gUnknown_20274B4[0x3b00];
+EWRAM_DATA struct OpenedFile *gKanji[2];
+EWRAM_DATA struct UnkTextStruct2 gUnknown_202AFC0[4];
+EWRAM_DATA u32 gUnknown_202B020;
+EWRAM_DATA u32 gUnknown_202B024;
+EWRAM_DATA u32 gUnknown_202B028[2];
+EWRAM_DATA u32 gUnknown_202B030;
+EWRAM_DATA u8 gUnknown_202B034;
+EWRAM_DATA u16 gUnknown_202B038[2][32][32];
+
+u32 xxx_update_some_bg_tiles(u32 a0);
+void sub_8006438(const struct UnkTextStruct2 *a0, u8 a1, u8 a2, u32 *a3);
+void sub_8006554(void *a0, void *a1, void *a2, void *a3, u32 a4, const struct UnkTextStruct2 *a5, u8 a6, u32 a7, u32 *a8, u32 a9);
+void sub_800898C(void);
+void sub_80089AC(const struct UnkTextStruct2 *a0, void *a1);
+void sub_8009388(void);
+
+extern const struct UnkTextStruct2 gUnknown_80B857C[4];
+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];
+extern const u32 gUnknown_80B8804[4];
+
+void sub_8006218(void)
+{
+    int i;
+    int j;
+    int k;
+
+    gUnknown_20274AC = 0;
+    gKanji[0] = OpenFileAndGetFileDataPtr(gUnknown_80B87B4, &gUnknown_8300500);
+    gKanji[1] = OpenFileAndGetFileDataPtr(gUnknown_80B87BC, &gUnknown_8300500);
+    gUnknown_2027490[0] = gKanji[0]->data;
+    gUnknown_2027490[1] = gKanji[1]->data;
+    gUnknown_202B028[0] = 11;
+    gUnknown_202B028[1] = 12;
+    for (k = 0; k < 4; k++)
+    {
+        gUnknown_2027370[k].unk04 = 0;
+        gUnknown_2027370[k].unk08 = 0;
+        gUnknown_2027370[k].unk46 = 0;
+    }
+    gUnknown_2027498 = 0;
+    for (i = 0; i < 20; i++)
+    {
+        gUnknown_202B038[0][i][0] = 0xf279;
+        gUnknown_202B038[1][i][0] = 0xf27a;
+        for (j = 1; j < 32; j++)
+        {
+            gUnknown_202B038[0][i][j] = 0;
+            gUnknown_202B038[1][i][j] = 0xf27a;
+        }
+    }
+    gUnknown_202B034 = 1;
+    gUnknown_202B030 = 0x88888888;
+    gUnknown_203B078 = NULL;
+    gUnknown_20274A5 = 0;
+    gUnknown_202B020 = 1;
+    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;
+}
+
+void sub_800641C(void *a0, u8 a1, u8 a2)
+{
+    u32 r3 = 0;
+    sub_8006438(a0, a1, a2, &r3);
+}
+
+void sub_8006438(const struct UnkTextStruct2 *a0, u8 a1, u8 a2, u32 *a3)
+{
+    int i;
+    u32 r9 = 2;
+
+    if (a0 == NULL)
+        a0 = gUnknown_80B857C;
+    if (a2)
+        sub_8009388();
+    sub_800898C();
+    for (i = 0; i < 4; i++)
+    {
+        gUnknown_202AFC0[i] = a0[i];
+        if (a0[i].unk0c)
+        {
+            sub_8006554(gUnknown_2027370, (void *)VRAM, gUnknown_20274B4, gUnknown_202B038, gUnknown_80B8804[i], a0 + i, a1, r9, a3, 0);
+            sub_80089AC(a0 + i, a3);
+            r9 += a0[i].unk0c * a0[i].unk10;
+        }
+    }
+#ifdef NONMATCHING
+    gUnknown_203B078 = gUnknown_3000E94;
+    gUnknown_20274A5 = 1;
+#else
+    asm(".syntax unified\n"
+        "\tldr r2, =gUnknown_203B078\n"
+        "\tldr r0, =gUnknown_3000E94\n"
+        "\tldr r1, =gUnknown_20274A5\n"
+        "\tstr r0, [r2]\n"
+        "\tmovs r0, 0x1\n"
+        "\tstrb r0, [r1]\n"
+        ".syntax divided");
+#endif
+}