From 9d717596e138c8e24aca0be9b963c6dd22a3716e Mon Sep 17 00:00:00 2001
From: GliMusings <gcreative7@gmail.com>
Date: Wed, 23 Jun 2021 18:05:55 -0500
Subject: Starting unk_0201C6B4

---
 arm9/asm/unk_0201C6B4.s | 148 ------------------------------------------------
 arm9/src/unk_0201C6B4.c |  75 ++++++++++++++++++++++++
 include/unk_0201C6B4.h  |  10 ++++
 3 files changed, 85 insertions(+), 148 deletions(-)
 delete mode 100644 arm9/asm/unk_0201C6B4.s
 create mode 100644 arm9/src/unk_0201C6B4.c
 create mode 100644 include/unk_0201C6B4.h

diff --git a/arm9/asm/unk_0201C6B4.s b/arm9/asm/unk_0201C6B4.s
deleted file mode 100644
index 6ee6910b..00000000
--- a/arm9/asm/unk_0201C6B4.s
+++ /dev/null
@@ -1,148 +0,0 @@
-	.include "asm/macros.inc"
-	.include "global.inc"
-
-	.text
-
-	thumb_func_start FUN_0201C6B4
-FUN_0201C6B4: ; 0x0201C6B4
-	mov r2, #0x0
-	ldrsb r1, [r0, r2]
-	cmp r1, #0x0
-	beq _0201C6C4
-_0201C6BC:
-	add r2, r2, #0x1
-	ldrsb r1, [r0, r2]
-	cmp r1, #0x0
-	bne _0201C6BC
-_0201C6C4:
-	add r0, r2, #0x0
-	bx lr
-
-	thumb_func_start FUN_0201C6C8
-FUN_0201C6C8: ; 0x0201C6C8
-	push {r4-r5}
-	mov r4, #0x1
-	mov r3, #0x0
-	lsl r4, r4, #0x8
-_0201C6D0:
-	ldrsb r5, [r0, r3]
-	strb r5, [r1, r3]
-	ldrsb r5, [r0, r3]
-	cmp r2, r5
-	beq _0201C6DE
-	cmp r5, #0x0
-	bne _0201C6FE
-_0201C6DE:
-	mov r4, #0x0
-	strb r4, [r1, r3]
-	cmp r2, #0xd
-	bne _0201C6F6
-	add r1, r3, #0x1
-	ldrsb r1, [r0, r1]
-	cmp r1, #0xa
-	bne _0201C6F6
-	add r1, r3, #0x2
-	add r0, r0, r1
-	pop {r4-r5}
-	bx lr
-_0201C6F6:
-	add r1, r3, #0x1
-	add r0, r0, r1
-	pop {r4-r5}
-	bx lr
-_0201C6FE:
-	add r3, r3, #0x1
-	cmp r3, r4
-	blt _0201C6D0
-	mov r0, #0x0
-	pop {r4-r5}
-	bx lr
-	.balign 4
-
-	thumb_func_start FUN_0201C70C
-FUN_0201C70C: ; 0x0201C70C
-	push {r4-r6, lr}
-	add r4, r0, #0x0
-	bl FUN_0201C6B4
-	mov r5, #0x1
-	mov r6, #0x0
-	sub r3, r0, #0x1
-	bmi _0201C74A
-	sub r1, r6, #0x1
-	mov r0, #0xa
-_0201C720:
-	ldrsb r2, [r4, r3]
-	cmp r2, #0x30
-	blt _0201C732
-	cmp r2, #0x39
-	bgt _0201C732
-	sub r2, #0x30
-	mul r2, r5
-	add r6, r6, r2
-	b _0201C744
-_0201C732:
-	cmp r3, #0x0
-	bne _0201C73E
-	cmp r2, #0x2d
-	bne _0201C744
-	mul r6, r1
-	b _0201C744
-_0201C73E:
-	mov r0, #0x0
-	mvn r0, r0
-	pop {r4-r6, pc}
-_0201C744:
-	mul r5, r0
-	sub r3, r3, #0x1
-	bpl _0201C720
-_0201C74A:
-	add r0, r6, #0x0
-	pop {r4-r6, pc}
-	.balign 4
-
-	thumb_func_start FUN_0201C750
-FUN_0201C750: ; 0x0201C750
-	push {r3-r5, lr}
-	mov r2, #0x0
-	add r4, r1, #0x0
-	add r5, r0, #0x0
-	add r1, r2, #0x0
-_0201C75A:
-	lsl r0, r2, #0x2
-	str r1, [r5, r0]
-	add r0, r2, #0x1
-	lsl r0, r0, #0x18
-	lsr r2, r0, #0x18
-	cmp r2, #0x4
-	blo _0201C75A
-	add r0, r4, #0x0
-	bl FUN_0201C6B4
-	lsl r0, r0, #0x18
-	lsr r1, r0, #0x18
-	ldr r2, _0201C788 ; =0x00000000
-	beq _0201C784
-_0201C776:
-	ldrsb r0, [r4, r2]
-	strb r0, [r5, r2]
-	add r0, r2, #0x1
-	lsl r0, r0, #0x18
-	lsr r2, r0, #0x18
-	cmp r2, r1
-	blo _0201C776
-_0201C784:
-	pop {r3-r5, pc}
-	nop
-_0201C788: .word 0x00000000
-
-	thumb_func_start FUN_0201C78C
-FUN_0201C78C: ; 0x0201C78C
-	ldr r1, _0201C79C ; =0x00000121
-	cmp r0, r1
-	bhs _0201C796
-	mov r0, #0x1
-	bx lr
-_0201C796:
-	mov r0, #0x0
-	bx lr
-	nop
-_0201C79C: .word 0x00000121
diff --git a/arm9/src/unk_0201C6B4.c b/arm9/src/unk_0201C6B4.c
new file mode 100644
index 00000000..95a301d6
--- /dev/null
+++ b/arm9/src/unk_0201C6B4.c
@@ -0,0 +1,75 @@
+#include "global.h"
+#include "proto.h"
+#include "unk_0201C6B4.h"
+
+THUMB_FUNC u32 FUN_0201C6B4(s8 * r0)
+{
+    u32 r2 = 0;
+    while(r0[r2] != 0)
+    {
+        r2++;
+    }
+    return r2;
+}
+
+THUMB_FUNC s8 * FUN_0201C6C8(s8 * r0, s8 * r1, s8 r2)
+{
+    for(u8 r3 = 0; r3 < 256; r3++)
+    {
+        r1[r3] = r0[r3];
+        if(r2 == r0[r3] || r0[r3] != 0)
+        {
+            r1[r3] = 0;
+            if(r2 == 13 | r0[r3 + 1] == 10)
+            {
+                return r0 + r3 + 1;
+            }
+            return r0 + r3 + 2;
+        }
+    }
+    return NULL;
+}
+
+THUMB_FUNC s32 FUN_0201C70C(s8 * r4)
+{
+    u32 r5 = 1;
+    s32 r6 = 0;
+    for(u32 r3 = FUN_0201C6B4(r4) - 1; r3 >= 0; r3--)
+    {
+        if(r4[r3] < 48 || r4[r3] > 57)
+        {
+            if(r3 == 0)
+            {
+                return 0;
+            }
+            if(r4[r3] == 45)
+            {
+                r6 = r6 * -1;
+            }
+        }
+        else
+        {
+            r6 += ((r4[r3] - 48) * r5);
+        }
+        r5 = r5 * 10;
+    }
+    return r6;
+}
+
+THUMB_FUNC void FUN_0201C750(s8 * r5, s8 * r4)
+{
+    for(u32 r2 = 0; r2 < 4; r2++)
+    {
+        r5[r2 << 2] = 0;
+    }
+    u32 r0 = FUN_0201C6B4(r4);
+    for(u32 r2 = 0; r2 < r0; r2++)
+    {
+        r5[r2] = r4[r2];
+    }
+}
+
+THUMB_FUNC BOOL FUN_0201C78C(u32 r0)
+{
+    return r0 > 289;
+}
\ No newline at end of file
diff --git a/include/unk_0201C6B4.h b/include/unk_0201C6B4.h
new file mode 100644
index 00000000..956f7bc2
--- /dev/null
+++ b/include/unk_0201C6B4.h
@@ -0,0 +1,10 @@
+#ifndef POKEDIAMOND_UNK_0201C6B4_H
+#define POKEDIAMOND_UNK_0201C6B4_H
+
+u32 FUN_0201C6B4(s8 * r0);
+s8 * FUN_0201C6C8(s8 * r0, s8 * r1, s8 r2);
+s32 FUN_0201C70C(s8 * r4);
+void FUN_0201C750(s8 * r5, s8 * r4);
+BOOL FUN_0201C78C(u32 r0);
+
+#endif // POKEDIAMOND_UNK_0201C6B4_H
\ No newline at end of file
-- 
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