decompile more of rom3 (#199)

* start decompiling rom3

* newline

* decompile sub_800BA78

* decompile more of rom3

* battle type constants

* decompile sub_800C35C

* remove sh.exe.stackdump

1 files changed, 326 insertions, 7 deletions

diff --git a/src/rom3.c b/src/rom3.c
index 9bd2674c5..af9a9f4dd 100644
--- a/src/rom3.c
+++ b/src/rom3.c
@@ -7,13 +7,30 @@
 #include "species.h"
 #include "task.h"
 
+extern u8 unk_2000000[];
+
+#define EWRAM_14000 ((u8 *)(unk_2000000 + 0x14000))
+#define EWRAM_15000 ((u8 *)(unk_2000000 + 0x15000))
+
 extern u16 gBattleTypeFlags;
+extern u16 gBlockRecvBuffer[MAX_LINK_PLAYERS][BLOCK_BUFFER_SIZE / 2];
+extern u32 gBitTable[];
 
+extern u8 gUnknown_020238C4;
+extern u8 gUnknown_020238C5;
+extern u8 gUnknown_020238C6;
 extern u32 gUnknown_020239FC;
+extern u8 gUnknown_02023A60[][0x200];
+extern u8 gUnknown_02024260[][0x200];
+extern u8 gUnknown_02024A60;
 extern u32 gUnknown_02024A64;
 extern u8 gUnknown_02024A68;
 extern u16 gUnknown_02024A6A[];
 extern u8 gUnknown_02024A72[];
+extern u8 gUnknown_02024C07;
+extern u8 gUnknown_02024C08;
+extern u8 gUnknown_02024C0A;
+extern u8 gUnknown_02024C0C;
 extern u8 gUnknown_02024C78;
 extern u8 gUnknown_02024E60[];
 extern u8 gUnknown_02024E64[];
@@ -38,10 +55,15 @@ extern void sub_802BF74(void);
 extern void sub_8032AE0(void);
 extern void sub_8037510(void);
 extern void sub_811DA78(void);
+extern void dp01_prepare_buffer_wireless_probably(u8 a, u16, u8 *c);
+extern void sub_800C1A8(u8);
+extern void sub_800C47C(u8);
+extern void sub_8007F4C(void);
+extern u8 sub_8007ECC(void);
 
 void sub_800B858(void)
 {
-    if (gBattleTypeFlags & 2)
+    if (gBattleTypeFlags & BATTLE_TYPE_LINK)
     {
         OpenLink();
         CreateTask(sub_8083C50, 0);
@@ -66,7 +88,7 @@ void setup_poochyena_battle(void)
     battle_anim_clear_some_data();
     sub_8040710();
     BattleAI_HandleItemUseBeforeAISetup();
-    if (gBattleTypeFlags & 0x10)
+    if (gBattleTypeFlags & BATTLE_TYPE_FIRST_BATTLE)
     {
         ZeroEnemyPartyMons();
         CreateMon(&gEnemyParty[0], SPECIES_POOCHYENA, 2, 32, 0, 0, 0, 0);
@@ -81,12 +103,12 @@ void sub_800B950(void)
 {
     s32 i;
     
-    if (gBattleTypeFlags & 2)
+    if (gBattleTypeFlags & BATTLE_TYPE_LINK)
         sub_800BA78();
     else
         sub_800B9A8();
     sub_800BD54();
-    if (!(gBattleTypeFlags & 0x40))
+    if (!(gBattleTypeFlags & BATTLE_TYPE_40))
     {
         for (i = 0; i < gUnknown_02024A68; i++)
             sub_8094978(i, 0);
@@ -95,12 +117,12 @@ void sub_800B950(void)
 
 void sub_800B9A8(void)
 {
-    if (!(gBattleTypeFlags & 1))
+    if (!(gBattleTypeFlags & BATTLE_TYPE_DOUBLE))
     {
         gUnknown_030042D4 = sub_8010800;
-        if (gBattleTypeFlags & 0x80)
+        if (gBattleTypeFlags & BATTLE_TYPE_SAFARI)
             gUnknown_03004330[0] = sub_812B468;
-        else if (gBattleTypeFlags & 0x200)
+        else if (gBattleTypeFlags & BATTLE_TYPE_WALLY_TUTORIAL)
             gUnknown_03004330[0] = sub_8137224;
         else
             gUnknown_03004330[0] = sub_802BF74;
@@ -255,3 +277,300 @@ void sub_800BA78(void)
     }
     gUnknown_02024A68 = 4;
 }
+
+void sub_800BD54(void)
+{
+    int i;
+    int j;
+    
+    if (!(gBattleTypeFlags & BATTLE_TYPE_40))
+    {
+        for (i = 0; i < gUnknown_02024A68; i++)
+        {
+            for (j = 0; j < 6; j++)
+            {
+                if (i < 2)
+                {
+                    if (!(gUnknown_02024A72[i] & 1))
+                    {
+                        if (GetMonData(&gPlayerParty[j], MON_DATA_HP) != 0
+                         && GetMonData(&gPlayerParty[j], MON_DATA_SPECIES2) != 0
+                         && GetMonData(&gPlayerParty[j], MON_DATA_SPECIES2) != 0x19C
+                         && GetMonData(&gPlayerParty[j], MON_DATA_IS_EGG) == 0)
+                        {
+                            gUnknown_02024A6A[i] = j;
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        if (GetMonData(&gEnemyParty[j], MON_DATA_HP) != 0
+                         && GetMonData(&gEnemyParty[j], MON_DATA_SPECIES2) != 0
+                         && GetMonData(&gEnemyParty[j], MON_DATA_SPECIES2) != 0x19C
+                         && GetMonData(&gEnemyParty[j], MON_DATA_IS_EGG) == 0)
+                        {
+                            gUnknown_02024A6A[i] = j;
+                            break;
+                        }
+                    }
+                }
+                else
+                {
+                    if (!(gUnknown_02024A72[i] & 1))
+                    {
+                        if (GetMonData(&gPlayerParty[j], MON_DATA_HP) != 0
+                         && GetMonData(&gPlayerParty[j], MON_DATA_SPECIES) != 0  //Why is this one not SPECIES2 like the rest?
+                         && GetMonData(&gPlayerParty[j], MON_DATA_SPECIES2) != 0x19C
+                         && GetMonData(&gPlayerParty[j], MON_DATA_IS_EGG) == 0
+                         && gUnknown_02024A6A[i - 2] != j)
+                        {
+                            gUnknown_02024A6A[i] = j;
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        if (GetMonData(&gEnemyParty[j], MON_DATA_HP) != 0
+                         && GetMonData(&gEnemyParty[j], MON_DATA_SPECIES2) != 0
+                         && GetMonData(&gEnemyParty[j], MON_DATA_SPECIES2) != 0x19C
+                         && GetMonData(&gEnemyParty[j], MON_DATA_IS_EGG) == 0
+                         && gUnknown_02024A6A[i - 2] != j)
+                        {
+                            gUnknown_02024A6A[i] = j;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+void dp01_prepare_buffer(u8 a, u8 *b, u16 c)
+{
+    int i;
+    
+    if (gBattleTypeFlags & BATTLE_TYPE_LINK)
+    {
+        dp01_prepare_buffer_wireless_probably(a, c, b);
+    }
+    else
+    {
+        switch (a)
+        {
+        case 0:
+            for (i = 0; i < c; i++)
+            {
+                gUnknown_02023A60[gUnknown_02024A60][i] = *b;
+                b++;
+            }
+            break;
+        case 1:
+            for (i = 0; i < c; i++)
+            {
+                gUnknown_02024260[gUnknown_02024A60][i] = *b;
+                b++;
+            }
+            break;
+        }
+    }
+}
+
+void sub_800BF28(void)
+{
+    gUnknown_020238C4 = CreateTask(sub_800C1A8, 0);
+    gTasks[gUnknown_020238C4].data[11] = 0;
+    gTasks[gUnknown_020238C4].data[12] = 0;
+    gTasks[gUnknown_020238C4].data[13] = 0;
+    gTasks[gUnknown_020238C4].data[14] = 0;
+    gTasks[gUnknown_020238C4].data[15] = 0;
+    gUnknown_020238C5 = CreateTask(sub_800C47C, 0);
+    gTasks[gUnknown_020238C5].data[12] = 0;
+    gTasks[gUnknown_020238C5].data[13] = 0;
+    gTasks[gUnknown_020238C5].data[14] = 0;
+    gTasks[gUnknown_020238C5].data[15] = 0;
+    gUnknown_020238C6 = 0;
+    CpuFill16(0, EWRAM_14000, 0x2000);
+}
+
+void dp01_prepare_buffer_wireless_probably(u8 a, u16 b, u8 *c)
+{
+    s32 r9;
+    int i;
+    
+    r9 = b - b % 4 + 4;
+    if (gTasks[gUnknown_020238C4].data[14] + r9 + 9 > 0x1000)
+    {
+        gTasks[gUnknown_020238C4].data[12] = gTasks[gUnknown_020238C4].data[14];
+        gTasks[gUnknown_020238C4].data[14] = 0;
+    }
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14000] = a;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14001] = gUnknown_02024A60;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14002] = gUnknown_02024C07;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14003] = gUnknown_02024C08;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14004] = r9;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14005] = (r9 & 0x0000FF00) >> 8;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14006] = gUnknown_02024C0C;
+    unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14007] = gUnknown_02024C0A;
+    for (i = 0; i < b; i++)
+        unk_2000000[gTasks[gUnknown_020238C4].data[14] + 0x14008 + i] = c[i];
+    gTasks[gUnknown_020238C4].data[14] = gTasks[gUnknown_020238C4].data[14] + r9 + 8;
+}
+
+void sub_800C1A8(u8 taskId)
+{
+    u16 var;
+    
+    switch (gTasks[taskId].data[11])
+    {
+    case 0:
+        gTasks[taskId].data[10] = 100;
+        gTasks[taskId].data[11]++;
+        break;
+    case 1:
+        gTasks[taskId].data[10]--;
+        if (gTasks[taskId].data[10] == 0)
+            gTasks[taskId].data[11]++;
+        break;
+    case 2:
+        GetLinkPlayerCount_2();
+        if (IsLinkMaster())
+        {
+            sub_8007F4C();
+            gTasks[taskId].data[11]++;
+            break;
+        }
+        gTasks[taskId].data[11]++;
+        break;
+    case 3:
+        if (gTasks[taskId].data[15] != gTasks[taskId].data[14])
+        {
+            if (gTasks[taskId].data[13] == 0)
+            {
+                if (gTasks[taskId].data[15] > gTasks[taskId].data[14]
+                 && gTasks[taskId].data[15] == gTasks[taskId].data[12])
+                {
+                    gTasks[taskId].data[12] = 0;
+                    gTasks[taskId].data[15] = 0;
+                }
+                var = (unk_2000000[gTasks[taskId].data[15] + 0x14004] | (unk_2000000[gTasks[taskId].data[15] + 0x14005] << 8)) + 8;
+                SendBlock(bitmask_all_link_players_but_self(), &unk_2000000[gTasks[taskId].data[15] + 0x14000], var);
+                gTasks[taskId].data[11]++;
+            }
+            else
+            {
+                gTasks[taskId].data[13]--;
+                break;
+            }
+        }
+        break;
+    case 4:
+        if (sub_8007ECC())
+        {
+            var = unk_2000000[gTasks[taskId].data[15] + 0x14004] | (unk_2000000[gTasks[taskId].data[15] + 0x14005] << 8);
+            gTasks[taskId].data[13] = 1;
+            gTasks[taskId].data[15] = gTasks[taskId].data[15] + var + 8;
+            gTasks[taskId].data[11] = 3;
+        }
+        break;
+    case 5:
+        gTasks[taskId].data[13]--;
+        if (gTasks[taskId].data[13] == 0)
+        {
+            gTasks[taskId].data[13] = 1;
+            gTasks[taskId].data[11] = 3;
+        }
+        break;
+    }
+}
+
+//fix me
+void sub_800C35C(void)
+{
+    u8 i;  //r4
+    s32 j;  //r2
+    u16 r6;  //r6
+    u8 *recvBuffer;  //r3
+    u8 *dest;  //r5
+    u8 *src;  //r4
+    
+    if (gReceivedRemoteLinkPlayers != 0 && (gBattleTypeFlags & 0x20) && gLinkPlayers[0].linkType == 0x2211)
+    {
+        for (i = 0; i < GetLinkPlayerCount(); i++)
+        {
+            if (GetBlockReceivedStatus() & gBitTable[i])
+            {
+                ResetBlockReceivedFlag(i);
+                recvBuffer = (u8 *)&gBlockRecvBuffer[i];
+#ifndef NONMATCHING
+                asm("");
+                recvBuffer = (u8 *)&gBlockRecvBuffer[i];
+#endif
+                r6 = gBlockRecvBuffer[i][2];
+                if (gTasks[gUnknown_020238C5].data[14] + 9 + r6 > 0x1000)
+                {
+                    gTasks[gUnknown_020238C5].data[12] = gTasks[gUnknown_020238C5].data[14];
+                    gTasks[gUnknown_020238C5].data[14] = 0;
+                }
+                //_0800C402
+                dest = EWRAM_15000 + gTasks[gUnknown_020238C5].data[14];
+                src = recvBuffer;
+                for (j = 0; j < r6 + 8; j++)
+                    dest[j] = src[j];
+                gTasks[gUnknown_020238C5].data[14] = gTasks[gUnknown_020238C5].data[14] + r6 + 8;
+            }
+            //_0800C446
+        }
+    }
+}
+
+/*
+extern void sub_80155A4();
+
+void sub_800C47C(u8 taskId)
+{
+    //s16 r3;
+    u16 r7;
+    u8 r4;
+    u8 r2;
+    
+    if (gTasks[taskId].data[15] != gTasks[taskId].data[14])
+    {
+        if (gTasks[taskId].data[15] > gTasks[taskId].data[14]
+         && gTasks[taskId].data[15] == gTasks[taskId].data[12])
+        {
+            gTasks[taskId].data[12] = 0;
+            gTasks[taskId].data[15] = 0;
+        }
+        //_0800C4B6
+        //r3 = gTasks[taskId].data[15];
+        asm(""::"r"(unk_2000000));
+        r4 = EWRAM_15000[gTasks[taskId].data[15] + 1];
+        r7 = EWRAM_15000[gTasks[taskId].data[15] + 4] | (EWRAM_15000[gTasks[taskId].data[15] + 5] << 8);
+        switch (EWRAM_15000[gTasks[taskId].data[15]])
+        {
+            case 0:
+                if (gUnknown_02024A64 & gBitTable[r4])
+                    return;
+                memcpy(gUnknown_02023A60[r4], &EWRAM_15000[gTasks[taskId].data[15] + 8], r7);
+                sub_80155A4(r4);
+                if (!(gBattleTypeFlags & 4))
+                {
+                    gUnknown_02024C07 = EWRAM_15000[gTasks[taskId].data[15] + 2];
+                    gUnknown_02024C08 = EWRAM_15000[gTasks[taskId].data[15] + 3];
+                    gUnknown_02024C0C = EWRAM_15000[gTasks[taskId].data[15] + 6];
+                    gUnknown_02024C0A = EWRAM_15000[gTasks[taskId].data[15] + 7];
+                }
+                break;
+            case 1:
+                memcpy(gUnknown_02024260[r4], &EWRAM_15000[gTasks[taskId].data[15] + 8], r7);
+                break;
+            case 2:
+                r2 = EWRAM_15000[gTasks[taskId].data[15] + 8];
+                gUnknown_02024A64 &= ~(gBitTable[r4] << (r2 * 4));
+                break;
+        }
+        gTasks[taskId].data[15] = gTasks[taskId].data[15] + r7 + 8;
+    }
+}
+*/
\ No newline at end of file