decompile sub_80A3740 - swap32

2 files changed, 389 insertions, 1 deletions

diff --git a/src/item.c b/src/item.c
index a5ed99a82..33aa87768 100644
--- a/src/item.c
+++ b/src/item.c
@@ -129,6 +129,7 @@ bool8 CheckBagHasSpace(u16 itemId, u16 count)
     return TRUE;
 }
 
+#ifdef NONMATCHING
 bool8 AddBagItem(u16 itemId, u16 count)
 {
     u8 i;
@@ -193,6 +194,158 @@ bool8 AddBagItem(u16 itemId, u16 count)
     memcpy(gBagPockets[pocket].itemSlots, newItems, gBagPockets[pocket].capacity * sizeof(struct ItemSlot));
     return TRUE;
 }
+#else
+__attribute__((naked))
+bool8 AddBagItem(u16 itemId, u16 count)
+{
+    asm(".syntax unified\n\
+    push {r4-r7,lr}\n\
+    mov r7, r9\n\
+    mov r6, r8\n\
+    push {r6,r7}\n\
+    sub sp, 0x100\n\
+    lsls r0, 16\n\
+    lsrs r0, 16\n\
+    mov r8, r0\n\
+    lsls r1, 16\n\
+    lsrs r4, r1, 16\n\
+    bl ItemId_GetPocket\n\
+    lsls r0, 24\n\
+    cmp r0, 0\n\
+    beq _080A9510\n\
+    mov r0, r8\n\
+    bl ItemId_GetPocket\n\
+    subs r0, 0x1\n\
+    lsls r0, 24\n\
+    lsrs r6, r0, 24\n\
+    ldr r1, _080A94F8 @ =gBagPockets\n\
+    lsls r0, r6, 3\n\
+    adds r5, r0, r1\n\
+    ldr r1, [r5]\n\
+    ldrb r2, [r5, 0x4]\n\
+    lsls r2, 2\n\
+    mov r0, sp\n\
+    bl memcpy\n\
+    ldr r7, _080A94FC @ =0x000003e7\n\
+    cmp r6, 0x3\n\
+    beq _080A9468\n\
+    movs r7, 0x63\n\
+_080A9468:\n\
+    movs r1, 0\n\
+    ldrb r0, [r5, 0x4]\n\
+    cmp r1, r0\n\
+    bcs _080A94B2\n\
+    subs r0, r6, 0x2\n\
+    lsls r0, 24\n\
+    lsrs r0, 24\n\
+    mov r12, r0\n\
+_080A9478:\n\
+    lsls r0, r1, 2\n\
+    mov r2, sp\n\
+    adds r3, r2, r0\n\
+    ldrh r0, [r3]\n\
+    cmp r0, r8\n\
+    bne _080A94A6\n\
+    ldrh r2, [r3, 0x2]\n\
+    adds r0, r2, r4\n\
+    cmp r0, r7\n\
+    ble _080A9500\n\
+    mov r0, r12\n\
+    cmp r0, 0x1\n\
+    bls _080A9510\n\
+    subs r0, r7, r2\n\
+    subs r0, r4, r0\n\
+    lsls r0, 16\n\
+    lsrs r4, r0, 16\n\
+    strh r7, [r3, 0x2]\n\
+    ldr r2, _080A94F8 @ =gBagPockets\n\
+    mov r9, r2\n\
+    lsls r3, r6, 3\n\
+    cmp r4, 0\n\
+    beq _080A9516\n\
+_080A94A6:\n\
+    adds r0, r1, 0x1\n\
+    lsls r0, 24\n\
+    lsrs r1, r0, 24\n\
+    ldrb r0, [r5, 0x4]\n\
+    cmp r1, r0\n\
+    bcc _080A9478\n\
+_080A94B2:\n\
+    ldr r2, _080A94F8 @ =gBagPockets\n\
+    mov r9, r2\n\
+    lsls r3, r6, 3\n\
+    cmp r4, 0\n\
+    beq _080A9516\n\
+    movs r1, 0\n\
+    adds r0, r3, r2\n\
+    ldrb r0, [r0, 0x4]\n\
+    cmp r1, r0\n\
+    bcs _080A94F2\n\
+    mov r6, r9\n\
+    adds r5, r3, r6\n\
+_080A94CA:\n\
+    lsls r0, r1, 2\n\
+    mov r6, sp\n\
+    adds r2, r6, r0\n\
+    ldrh r0, [r2]\n\
+    cmp r0, 0\n\
+    bne _080A94E6\n\
+    mov r0, r8\n\
+    strh r0, [r2]\n\
+    cmp r4, r7\n\
+    bls _080A9514\n\
+    subs r0, r4, r7\n\
+    lsls r0, 16\n\
+    lsrs r4, r0, 16\n\
+    strh r7, [r2, 0x2]\n\
+_080A94E6:\n\
+    adds r0, r1, 0x1\n\
+    lsls r0, 24\n\
+    lsrs r1, r0, 24\n\
+    ldrb r2, [r5, 0x4]\n\
+    cmp r1, r2\n\
+    bcc _080A94CA\n\
+_080A94F2:\n\
+    cmp r4, 0\n\
+    beq _080A9516\n\
+    b _080A9510\n\
+    .align 2, 0\n\
+_080A94F8: .4byte gBagPockets\n\
+_080A94FC: .4byte 0x000003e7\n\
+_080A9500:\n\
+    strh r0, [r3, 0x2]\n\
+    ldr r0, _080A950C @ =gBagPockets\n\
+    lsls r1, r6, 3\n\
+    adds r1, r0\n\
+    b _080A951A\n\
+    .align 2, 0\n\
+_080A950C: .4byte gBagPockets\n\
+_080A9510:\n\
+    movs r0, 0\n\
+    b _080A9528\n\
+_080A9514:\n\
+    strh r4, [r2, 0x2]\n\
+_080A9516:\n\
+    mov r6, r9\n\
+    adds r1, r3, r6\n\
+_080A951A:\n\
+    ldr r0, [r1]\n\
+    ldrb r2, [r1, 0x4]\n\
+    lsls r2, 2\n\
+    mov r1, sp\n\
+    bl memcpy\n\
+    movs r0, 0x1\n\
+_080A9528:\n\
+    add sp, 0x100\n\
+    pop {r3,r4}\n\
+    mov r8, r3\n\
+    mov r9, r4\n\
+    pop {r4-r7}\n\
+    pop {r1}\n\
+    bx r1\n\
+    .syntax divided\n");
+}
+#endif
 
 bool8 RemoveBagItem(u16 itemId, u16 count)
 {
diff --git a/src/item_menu.c b/src/item_menu.c
index bbb91296f..91853588b 100644
--- a/src/item_menu.c
+++ b/src/item_menu.c
@@ -8,6 +8,8 @@
 #include "palette.h"
 #include "rom4.h"
 #include "sprite.h"
+#include "strings.h"
+#include "strings2.h"
 #include "task.h"
 #include "text.h"
 #include "unknown_task.h"
@@ -22,38 +24,98 @@ struct UnknownStruct1
     u8 unk3;
 };
 
+extern u8 gUnknown_02038558;
 extern s8 gUnknown_02038559;
 extern u8 gUnknown_0203855A;
 extern u8 gUnknown_0203855B;
 extern u8 gUnknown_0203855C;
+extern u8 gUnknown_02038562;
+extern u8 gUnknown_02038564;
 extern u8 gUnknown_03000700;
 extern u8 gUnknown_03000701;
+extern const u8 *gUnknown_03000704;
 extern struct UnknownStruct1 gUnknown_03005D10[];
 extern struct ItemSlot *gUnknown_03005D24;
+extern bool8 gLinkOpen;
 
 extern void gpu_pal_allocator_reset__manage_upper_four(void);
 extern void sub_80F9020(void);
 extern void sub_80F9988();
+extern void sub_809D104(u16 *, u16, u16, const u8 *, u16, u16, u16, u16);
 
 extern const struct CompressedSpriteSheet gUnknown_083C1CC8;
 extern const struct CompressedSpriteSheet gUnknown_083C1CD0;
 extern const struct CompressedSpritePalette gUnknown_083C1CD8;
 
+const struct BagPocket gBagPockets[NUM_BAG_POCKETS] =
+{
+    // pointer to items, capacity
+    {gSaveBlock1.bagPocket_Items, 20},
+    {gSaveBlock1.bagPocket_PokeBalls, 16},
+    {gSaveBlock1.bagPocket_TMHM, 64},
+    {gSaveBlock1.bagPocket_Berries, 46},
+    {gSaveBlock1.bagPocket_KeyItems, 20},
+};
+
+void sub_80A5B78(u8);
+void sub_80A5F14(u8);
+void sub_80A5F80(u8);
+void sub_80A5FAC(u8);
+void ItemMenu_UseInBattle(u8);
+void sub_80A7124(u8);
+void ItemMenu_Give(u8);
+void sub_80A6178(u8);
+void sub_80A69E0(u8);
+
+const struct MenuAction2 gUnknown_083C1640[] =
+{
+    {OtherText_Use, sub_80A5B78},
+    {OtherText_Toss, sub_80A5F14},
+    {gOtherText_CancelNoTerminator, sub_80A5F80},
+    {OtherText_Register, sub_80A5FAC},
+    {OtherText_Use, ItemMenu_UseInBattle},
+    {gOtherText_CancelNoTerminator, sub_80A7124},
+    {OtherText_Give2, ItemMenu_Give},
+    {OtherText_CheckTag, sub_80A6178},
+    {gOtherText_CancelWithTerminator, NULL},
+    {OtherText_Confirm, sub_80A69E0},
+};
+
+extern const u8 gUnknown_083C1690[][6];
+/*
+const u8 gUnknown_083C1690[][6] =
+{
+    {0, 1, 6, 2, 0, 0},
+    {6, 1, 8, 2, 0, 0},
+    {0, 8, 6, 2, 0, 0},
+    {7, 0, 1, 8, 6, 2},
+    {0, 8, 3, 2, 0, 0},
+};
+*/
+
 void sub_80A34E8(void);
 bool8 sub_80A3520(void);
 void sub_80A362C(void);
 void sub_80A3740(void);
+void sub_80A396C(u16 *, u8, u8, u8);
 void sub_80A39B8(u16 *, u8);
+void sub_80A39E4(u16 *, u8, u8, s8);
 void sub_80A3AC0(u16 *, u8);
-void sub_80A3C34();
+void sub_80A3C34(struct ItemSlot *, u32);
 void sub_80A3D08(void);
+void sub_80A3D24(u8);
 void sub_80A3D40(void);
 void sub_80A48E8();
 void ItemListMenu_InitDescription();
+void ItemListMenu_ChangeDescription();
+void sub_80A4F68(u8);
+void sub_80A50C8(u8);
 void ItemListMenu_InitMenu(void);
 void sub_80A740C(void);
 void sub_80A751C(void);
+void sub_80A7590(void);
 void sub_80A7630(void);
+void sub_80A76A0(void);
 void sub_80A770C(void);
 void sub_80A7828(void);
 void sub_80A78B8(void);
@@ -337,3 +399,176 @@ void ClearBag(void)
         ClearItemSlots(gBagPockets[i].itemSlots, gBagPockets[i].capacity);
     sub_80A3684();
 }
+
+extern const u16 gUnknown_083C1704[];
+
+void sub_80A3740(void)
+{
+    u16 arr[2];
+    
+    // TODO: This is a local array
+    memcpy(arr, gUnknown_083C1704, 4);
+    LoadPalette(&arr[1], 0xD1, sizeof(arr[1]));
+    LoadPalette(&arr[0], 0xD8, sizeof(arr[0]));
+}
+
+void sub_80A3770(void)
+{
+    if (gUnknown_03000701 == 0)
+    {
+        gUnknown_03000704 = gUnknown_083C1690[gUnknown_02038559];
+        if (gUnknown_02038559 != 3)
+            gUnknown_02038564 = 4;
+        else
+            gUnknown_02038564 = 6;
+    }
+}
+
+void sub_80A37C0(u8 taskId)
+{
+    gTasks[taskId].func = sub_80A50C8;
+    StartVerticalScrollIndicators(0);
+    StartVerticalScrollIndicators(1);
+    StartVerticalScrollIndicators(2);
+    StartVerticalScrollIndicators(3);
+}
+
+void sub_80A37F8(u8 taskId)
+{
+    u8 r5 = gUnknown_0203855A;
+    
+    if (r5 < 16)
+    {
+        gUnknown_0203855A++;
+        sub_80A396C(gBGTilemapBuffers[2], r5, gUnknown_0203855A, 0x4F);
+        sub_80A39E4(gBGTilemapBuffers[2], gUnknown_02038559 + 1, gUnknown_0203855A / 2, gTasks[taskId].data[5]);
+        gUnknown_02038558 = 1;
+        sub_80A48E8(taskId, r5 / 2, gUnknown_0203855A / 2 - 1);
+        gUnknown_02038558 = 0;
+        return;
+    }
+    
+    if (gLinkOpen == TRUE)
+    {
+        u32 val = gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0;
+        
+        ItemListMenu_ChangeDescription((s16)gUnknown_03005D24[val].itemId, gUnknown_02038562);
+        gUnknown_02038562++;
+    }
+    else
+    {
+        while (gUnknown_02038562 < 3)
+        {
+            u32 val = gUnknown_03005D10[gUnknown_02038559].unk1 + gUnknown_03005D10[gUnknown_02038559].unk0;
+        
+            ItemListMenu_ChangeDescription((s16)gUnknown_03005D24[val].itemId, gUnknown_02038562);
+            gUnknown_02038562++;
+        }
+    }
+    if (gUnknown_02038562 == 3)
+    {
+        gUnknown_0203855A = 16;
+        gUnknown_0203855B = gUnknown_02038559 + 1;
+        sub_80A37C0(FindTaskIdByFunc(sub_80A4F68));
+        DestroyTask(taskId);
+        ItemListMenu_InitMenu();
+        sub_80F979C(2, 0);
+        sub_80F979C(3, 0);
+    }
+}
+
+void sub_80A3954(u16 *a)
+{
+    CpuCopy16(gUnknown_08E77004, a, 0x800);
+}
+
+void sub_80A396C(u16 *a, u8 b, u8 c, u8 d)
+{
+    u16 *dst = a + 14 + (b + 2) * 32;
+    u16 i;
+    
+    while (c > b++)
+    {
+        for (i = 0; i < 15; i++)
+            dst[i] = d;
+        dst += 32;
+    }
+}
+
+void sub_80A39B8(u16 *a, u8 b)
+{
+    u8 var = b * 2;
+    
+    sub_809D104(a, 4, 10, gUnknown_08E96EC8, 0, var, 8, 2);
+}
+
+void sub_80A39E4(u16 *a, u8 b, u8 c, s8 d)
+{
+    u16 r2 = b * 2;
+    u16 r7;
+    
+    if (d == -1)
+    {
+        r7 = (b + 1) * 2;
+        if (b == 5)
+            r7 = 2;
+        
+        sub_809D104(a, 4, 10, gUnknown_08E96EC8, 8 - c, r2, c, 2);
+        sub_809D104(a, c + 4, 10, gUnknown_08E96EC8, 0, r7, 8 - c, 2);
+    }
+    else if (d == 1)
+    {
+        r7 = (b - 1) * 2;
+        if (b == 1)
+            r7 = 10;
+        
+        sub_809D104(a, 4, 10, gUnknown_08E96EC8, c, r7, 8 - c, 2);
+        sub_809D104(a, 12 - c, 10, gUnknown_08E96EC8, 0, r2, c, 2);
+    }
+}
+
+void sub_80A3AC0(u16 *a, u8 b)
+{
+    u8 i;
+    
+    for (i = 0; i < 5; i++)
+    {
+        if (i == b)
+            a[0x125 + i] = 0x107D;
+        else
+            a[0x125 + i] = 0x107C;
+    }
+}
+
+void sub_80A3B04(u16 *a, s8 b)
+{
+    u8 taskId;
+    
+    gUnknown_02038559 += b;
+    if (gUnknown_02038559 >= NUM_BAG_POCKETS)
+        gUnknown_02038559 = 0;
+    if (gUnknown_02038559 < 0)
+        gUnknown_02038559 = NUM_BAG_POCKETS - 1;
+    sub_80A76A0();
+    sub_80A7590();
+    gUnknown_03005D24 = gBagPockets[gUnknown_02038559].itemSlots;
+    sub_80A3D24(gUnknown_02038559);
+    gUnknown_0203855A = 0;
+    sub_80A3954(a);
+    sub_80A396C(a, 0, 16, 3);
+    sub_80A39B8(a, 0);
+    gUnknown_0203855B = 6;
+    gUnknown_02038562 = 0;
+    taskId = FindTaskIdByFunc(sub_80A37F8);
+    if (taskId == 0xFF)
+        taskId = CreateTask(sub_80A37F8, 8);
+    gTasks[taskId].data[5] = b;
+}
+
+void swap32(struct ItemSlot *a, struct ItemSlot *b)
+{
+    struct ItemSlot temp = *a;
+    
+    *a = *b;
+    *b = temp;
+}