Decompile unk_020254B8

4 files changed, 138 insertions, 248 deletions

diff --git a/arm9/asm/unk_020254B8.s b/arm9/asm/unk_020254B8.s
deleted file mode 100644
index 1d7159d1..00000000
--- a/arm9/asm/unk_020254B8.s
+++ /dev/null
@@ -1,246 +0,0 @@
-	.include "asm/macros.inc"
-    .include "global.inc"
-
-	.text
-
-	thumb_func_start FUN_020254B8
-FUN_020254B8: ; 0x020254B8
-	mov r0, #0x22
-	lsl r0, r0, #0x6
-	bx lr
-	.balign 4
-
-	thumb_func_start FUN_020254C0
-FUN_020254C0: ; 0x020254C0
-	ldr r3, _020254C8 ; =SavArray_get
-	mov r1, #0x9
-	bx r3
-	nop
-_020254C8: .word SavArray_get
-
-	thumb_func_start FUN_020254CC
-FUN_020254CC: ; 0x020254CC
-	push {r3-r7, lr}
-	mov r4, #0x0
-	ldr r6, _020254EC ; =0x0000FFFF
-	add r5, r0, #0x0
-	add r7, r4, #0x0
-_020254D6:
-	add r0, r5, #0x0
-	add r1, r7, #0x0
-	mov r2, #0x88
-	bl memset
-	strh r6, [r5, #0x0]
-	add r4, r4, #0x1
-	add r5, #0x88
-	cmp r4, #0x10
-	blt _020254D6
-	pop {r3-r7, pc}
-	.balign 4
-_020254EC: .word 0x0000FFFF
-
-	thumb_func_start FUN_020254F0
-FUN_020254F0: ; 0x020254F0
-	mov r2, #0x88
-	mul r2, r1
-	add r0, r0, r2
-	bx lr
-
-	thumb_func_start FUN_020254F8
-FUN_020254F8: ; 0x020254F8
-	add r0, r0, r1
-	add r0, #0x68
-	ldrb r0, [r0, #0x0]
-	bx lr
-
-	thumb_func_start FUN_02025500
-FUN_02025500: ; 0x02025500
-	push {r3-r5, lr}
-	add r5, r0, #0x0
-	add r4, r1, #0x0
-	bl StringNotEqual
-	cmp r0, #0x0
-	bne _0202551A
-	ldr r1, [r5, #0x10]
-	ldr r0, [r4, #0x10]
-	cmp r1, r0
-	bne _0202551A
-	mov r0, #0x1
-	pop {r3-r5, pc}
-_0202551A:
-	mov r0, #0x0
-	pop {r3-r5, pc}
-	.balign 4
-
-	thumb_func_start FUN_02025520
-FUN_02025520: ; 0x02025520
-	push {r4-r7, lr}
-	sub sp, #0x2c
-	str r1, [sp, #0x4]
-	mov r1, #0x22
-	str r0, [sp, #0x0]
-	add r0, r3, #0x0
-	lsl r1, r1, #0x6
-	str r2, [sp, #0x8]
-	bl AllocFromHeap
-	str r0, [sp, #0x10]
-	bl FUN_020254CC
-	mov r0, #0x0
-	str r0, [sp, #0x14]
-	ldr r0, [sp, #0x8]
-	cmp r0, #0x0
-	ble _02025578
-	ldr r7, [sp, #0x4]
-	add r6, sp, #0x18
-_02025548:
-	mov r0, #0x0
-	mvn r0, r0
-	ldr r5, [sp, #0x0]
-	str r0, [r6, #0x0]
-	mov r4, #0x0
-_02025552:
-	add r0, r5, #0x0
-	add r1, r7, #0x0
-	bl FUN_02025500
-	cmp r0, #0x0
-	beq _02025560
-	str r4, [r6, #0x0]
-_02025560:
-	add r4, r4, #0x1
-	add r5, #0x88
-	cmp r4, #0x10
-	blt _02025552
-	ldr r0, [sp, #0x14]
-	add r6, r6, #0x4
-	add r1, r0, #0x1
-	ldr r0, [sp, #0x8]
-	add r7, #0x88
-	str r1, [sp, #0x14]
-	cmp r1, r0
-	blt _02025548
-_02025578:
-	ldr r0, [sp, #0x8]
-	mov r4, #0x0
-	str r4, [sp, #0xc]
-	cmp r0, #0x0
-	ble _020255BE
-	ldr r5, [sp, #0x10]
-	add r6, sp, #0x18
-_02025586:
-	ldr r3, [sp, #0x4]
-	add r7, r5, #0x0
-	mov r2, #0x11
-_0202558C:
-	ldmia r3!, {r0-r1}
-	stmia r7!, {r0-r1}
-	sub r2, r2, #0x1
-	bne _0202558C
-	ldr r1, [r6, #0x0]
-	cmp r1, #0x0
-	blt _020255A6
-	add r2, r1, #0x0
-	mov r0, #0x88
-	mul r2, r0
-	ldr r1, _02025610 ; =0x0000FFFF
-	ldr r0, [sp, #0x0]
-	strh r1, [r0, r2]
-_020255A6:
-	ldr r0, [sp, #0x4]
-	add r5, #0x88
-	add r0, #0x88
-	str r0, [sp, #0x4]
-	ldr r0, [sp, #0xc]
-	add r4, r4, #0x1
-	add r1, r0, #0x1
-	ldr r0, [sp, #0x8]
-	add r6, r6, #0x4
-	str r1, [sp, #0xc]
-	cmp r1, r0
-	blt _02025586
-_020255BE:
-	mov r0, #0x0
-	mov r12, r0
-	mov r0, #0x88
-	add r1, r4, #0x0
-	mul r1, r0
-	ldr r0, [sp, #0x10]
-	ldr r3, [sp, #0x0]
-	add r5, r0, r1
-_020255CE:
-	ldrh r1, [r3, #0x0]
-	ldr r0, _02025610 ; =0x0000FFFF
-	cmp r1, r0
-	beq _020255EC
-	add r6, r3, #0x0
-	add r7, r5, #0x0
-	mov r2, #0x11
-_020255DC:
-	ldmia r6!, {r0-r1}
-	stmia r7!, {r0-r1}
-	sub r2, r2, #0x1
-	bne _020255DC
-	add r4, r4, #0x1
-	add r5, #0x88
-	cmp r4, #0x10
-	bge _020255F8
-_020255EC:
-	mov r0, r12
-	add r0, r0, #0x1
-	add r3, #0x88
-	mov r12, r0
-	cmp r0, #0x10
-	blt _020255CE
-_020255F8:
-	mov r2, #0x22
-	ldr r0, [sp, #0x0]
-	ldr r1, [sp, #0x10]
-	lsl r2, r2, #0x6
-	bl memcpy
-	ldr r0, [sp, #0x10]
-	bl FreeToHeap
-	add sp, #0x2c
-	pop {r4-r7, pc}
-	nop
-_02025610: .word 0x0000FFFF
-
-	thumb_func_start FUN_02025614
-FUN_02025614: ; 0x02025614
-	push {r3-r6}
-	mov r3, #0x0
-	add r4, r0, #0x0
-_0202561A:
-	ldr r2, [r4, #0x10]
-	cmp r1, r2
-	bne _02025626
-	mov r0, #0x1
-	pop {r3-r6}
-	bx lr
-_02025626:
-	add r3, r3, #0x1
-	add r4, #0x88
-	cmp r3, #0x10
-	blt _0202561A
-	mov r6, #0x0
-	add r3, r6, #0x0
-_02025632:
-	add r4, r3, #0x0
-	add r5, r0, #0x0
-_02025636:
-	ldr r2, [r5, #0x18]
-	cmp r1, r2
-	bne _02025642
-	add r0, r6, #0x2
-	pop {r3-r6}
-	bx lr
-_02025642:
-	add r4, r4, #0x1
-	add r5, r5, #0x4
-	cmp r4, #0x10
-	blt _02025636
-	add r6, r6, #0x1
-	add r0, #0x88
-	cmp r6, #0x10
-	blt _02025632
-	mov r0, #0x0
-	pop {r3-r6}
-	bx lr
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;
+}
diff --git a/include/unk_020254B8.h b/include/unk_020254B8.h
new file mode 100644
index 00000000..792ba33e
--- /dev/null
+++ b/include/unk_020254B8.h
@@ -0,0 +1,23 @@
+#ifndef POKEDIAMOND_UNK_020254B8_H
+#define POKEDIAMOND_UNK_020254B8_H
+
+struct UnkStruct_020254B8
+{
+    u16 field_00[8];
+    u32 field_10;
+    u8 filler_14[4];
+    u32 field_18[16];
+    u8 filler_58[16];
+    u8 field_68[32];
+};
+
+u32 FUN_020254B8(void);
+struct UnkStruct_020254B8 * FUN_020254C0(struct SaveBlock2 * sav2);
+void FUN_020254CC(struct UnkStruct_020254B8 * arr);
+u16 * FUN_020254F0(struct UnkStruct_020254B8 * arr, s32 i);
+u8 FUN_020254F8(struct UnkStruct_020254B8 * unk, s32 i);
+BOOL FUN_02025500(struct UnkStruct_020254B8 * a, struct UnkStruct_020254B8 * b);
+void FUN_02025520(struct UnkStruct_020254B8 * sp0, struct UnkStruct_020254B8 * sp4, s32 n, u32 heap_id);
+s32 FUN_02025614(struct UnkStruct_020254B8 * a0, u32 a1);
+
+#endif //POKEDIAMOND_UNK_020254B8_H