From 2582d7a8680e32493403d484c1990e1a63fb2015 Mon Sep 17 00:00:00 2001
From: Seth Barberee <seth.barberee@gmail.com>
Date: Mon, 23 Nov 2020 15:22:16 -0600
Subject: isemi-identified VRAM and split personality test funcs

---
 src/code_809747C.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 src/code_809747C.c

(limited to 'src/code_809747C.c')

diff --git a/src/code_809747C.c b/src/code_809747C.c
new file mode 100644
index 0000000..56e057e
--- /dev/null
+++ b/src/code_809747C.c
@@ -0,0 +1,81 @@
+#include "global.h"
+#include "dungeon.h"
+
+extern u32 *gStoryMissionText[];
+extern const u8 gDummyScenarioText;
+extern u32 gUnknown_8109CC0;
+extern u8 sub_80A270C();
+extern void sub_80015C0(u8, u8);
+
+const u8 *sub_809747C(s16 r0)
+{
+    if(r0 == 0xD)
+    {
+        return &gDummyScenarioText;
+    }
+    else
+    {
+        return GetDungeonName1(sub_80A270C());
+    }
+}
+
+const u8 *sub_80974A0(s16 r0)
+{
+    if(r0 == 0xD)
+    {
+        return &gDummyScenarioText;
+    }
+    else
+    {
+        return GetDungeonName1(sub_80A270C());
+    }
+}
+
+#ifndef NONMATCHING
+NAKED
+#endif
+u32 *sub_80974C4(s16 r0)
+{
+#ifdef NONMATCHING
+    // TODO fix regswap memes of r0/r1
+    if(r0 <= 0x1E)
+    {
+        return gStoryMissionText[(r0 << 1)];
+    }
+    else
+    {
+        return &gUnknown_8109CC0;
+    }
+#else
+	asm_unified("\tpush {lr}\n"
+	"\tlsls r0, 16\n"
+	"\tasrs r0, 16\n"
+	"\tcmp r0, 0x1E\n"
+	"\tble _080974D8\n"
+	"\tldr r0, _080974D4\n"
+	"\tb _080974E0\n"
+	"\t.align 2, 0\n"
+"_080974D4: .4byte gUnknown_8109CC0\n"
+"_080974D8:\n"
+	"\tlsls r0, 3\n"
+	"\tldr r1, _080974E4\n"
+	"\tadds r0, r1\n"
+	"\tldr r0, [r0]\n"
+"_080974E0:\n"
+	"\tpop {r1}\n"
+	"\tbx r1\n"
+	"\t.align 2, 0\n"
+"_080974E4: .4byte gStoryMissionText");
+
+#endif
+} 
+
+void sub_80974E8(void)
+{
+    sub_80015C0(0, 0x2E);
+    sub_80015C0(0, 0x2F);
+}
+
+void nullsub_208(void)
+{
+}
-- 
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