2 files changed, 115 insertions, 2 deletions
diff --git a/arm9/src/save_arrays.c b/arm9/src/save_arrays.c
index 96808ba6..bccdcc11 100644
--- a/arm9/src/save_arrays.c
+++ b/arm9/src/save_arrays.c
@@ -9,12 +9,12 @@
 #include "poketch.h"
 #include "hall_of_fame.h"
 #include "unk_020286F8.h"
+#include "unk_020254B8.h"
 #include "daycare.h"
 
 extern u32 FUN_0202AC20(void);
 extern u32 FUN_02034D7C(void);
 extern u32 Sav2_Pokedex_sizeof(void);
-extern u32 FUN_020254B8(void);
 extern u32 FUN_02024E64(void);
 extern u32 FUN_02034D80(void);
 extern u32 FUN_02025954(void);
@@ -41,7 +41,6 @@ extern u32 FUN_02013B28(void);
 extern void FUN_0202AC28(void *);
 extern void FUN_02034D98(void *);
 extern void Sav2_Pokedex_init(void *);
-extern void FUN_020254CC(void *);
 extern void FUN_02024E6C(void *);
 extern void FUN_02034D88(void *);
 extern void FUN_0202597C(void *);
diff --git a/arm9/src/unk_020254B8.c b/arm9/src/unk_020254B8.c
new file mode 100644
index 00000000..ed323965
--- /dev/null
+++ b/arm9/src/unk_020254B8.c
@@ -0,0 +1,114 @@
+#include "global.h"
+#include "string_util.h"
+#include "save_block_2.h"
+#include "heap.h"
+#include "unk_020254B8.h"
+
+#pragma thumb on
+
+u32 FUN_020254B8(void)
+{
+    return 16 * sizeof(struct UnkStruct_020254B8);
+}
+
+struct UnkStruct_020254B8 * FUN_020254C0(struct SaveBlock2 * sav2)
+{
+    return (struct UnkStruct_020254B8 *)SavArray_get(sav2, 9);
+}
+
+void FUN_020254CC(struct UnkStruct_020254B8 * arr)
+{
+    s32 i;
+
+    for (i = 0; i < 16; i++)
+    {
+        memset(&arr[i], 0, sizeof(struct UnkStruct_020254B8));
+        arr[i].field_00[0] = EOS;
+    }
+}
+
+u16 * FUN_020254F0(struct UnkStruct_020254B8 * arr, s32 i)
+{
+    return arr[i].field_00;
+}
+
+u8 FUN_020254F8(struct UnkStruct_020254B8 * unk, s32 i)
+{
+    return unk->field_68[i];
+}
+
+BOOL FUN_02025500(struct UnkStruct_020254B8 * a, struct UnkStruct_020254B8 * b)
+{
+    return !StringNotEqual(a->field_00, b->field_00) && a->field_10 == b->field_10;
+}
+
+void FUN_02025520(struct UnkStruct_020254B8 * sp0, struct UnkStruct_020254B8 * sp4, s32 n, u32 heap_id)
+{
+    s32 sp18[5];
+    s32 sp14;
+    struct UnkStruct_020254B8 * sp10;
+    s32 r12;
+    s32 spC;
+    s32 r4;
+    s32 r4_2;
+
+    // auto buffer = new UnkStruct_020254B8[16]
+    sp10 = AllocFromHeap(heap_id, 16 * sizeof(struct UnkStruct_020254B8));
+    FUN_020254CC(sp10);
+
+    // Look up each element of sp4 in sp0
+    for (sp14 = 0; sp14 < n; sp14++)
+    {
+        sp18[sp14] = -1;
+        for (r4_2 = 0; r4_2 < 16; r4_2++)
+        {
+            if (FUN_02025500(&sp0[r4_2], &sp4[sp14]))
+                sp18[sp14] = r4_2;
+        }
+    }
+
+    // Copy sp4 to buffer and mask matching entries in sp0
+    r4 = 0;
+    for (spC = 0; spC < n; spC++)
+    {
+        sp10[r4] = sp4[spC];
+        if (sp18[spC] >= 0)
+            sp0[sp18[spC]].field_00[0] = EOS;
+        r4++;
+    }
+
+    // Copy unmasked entries from sp0 to buffer
+    for (r12 = 0; r12 < 16; r12++)
+    {
+        if (sp0[r12].field_00[0] != EOS)
+        {
+            sp10[r4] = sp0[r12];
+            r4++;
+            if (r4 >= 16)
+                break;
+        }
+    }
+    // Copy buffer to sp0 and destroy buffer
+    memcpy(sp0, sp10, 16 * sizeof(struct UnkStruct_020254B8));
+    FreeToHeap(sp10);
+}
+
+s32 FUN_02025614(struct UnkStruct_020254B8 * a0, u32 a1)
+{
+    s32 i, j;
+
+    for (i = 0; i < 16; i++)
+    {
+        if (a1 == a0[i].field_10)
+            return 1;
+    }
+    for (i = 0; i < 16; i++)
+    {
+        for (j = 0; j < 16; j++)
+        {
+            if (a1 == a0[i].field_18[j])
+                return i + 2;
+        }
+    }
+    return 0;
+}