decompile rom_528AC.s

3 files changed, 263 insertions, 8 deletions

diff --git a/src/gbplayer.c b/src/gbplayer.c
index 00d30d5..c0d9655 100755
--- a/src/gbplayer.c
+++ b/src/gbplayer.c
@@ -292,6 +292,7 @@ void sub_1198(void)
 void sub_11B0(int arg0)
 {
     if (gUnknown_0200B134[0xCD])
+    //if (gMain.saveData.unk141)
     {
         gUnknown_02019BF8 = arg0;
         gUnknown_02019BFC = 0;
diff --git a/src/rom_3219C.c b/src/rom_3219C.c
index 6954fbe..77eb7ac 100755
--- a/src/rom_3219C.c
+++ b/src/rom_3219C.c
@@ -43,31 +43,31 @@ void sub_3219C(void)
         {
             s16 numSpecialMons = 0;
             gUnknown_020314E0->catchModeSpecies = 0;
-            if (gUnknown_0200B134[SPECIES_AERODACTYL])
+            if (gMain+0x74[SPECIES_AERODACTYL])
             {
                 specialMons[numSpecialMons++] = SPECIES_AERODACTYL;
-                if (gUnknown_0200B134[SPECIES_AERODACTYL] < 4)
+                if (gMain+0x74[SPECIES_AERODACTYL] < 4)
                     gUnknown_020314E0->catchModeSpecies = SPECIES_AERODACTYL;
             }
 
-            if (gUnknown_0200B134[SPECIES_CHIKORITA])
+            if (gMain+0x74[SPECIES_CHIKORITA])
             {
                 specialMons[numSpecialMons++] = SPECIES_CHIKORITA;
-                if (gUnknown_0200B134[SPECIES_CHIKORITA] < 4)
+                if (gMain+0x74[SPECIES_CHIKORITA] < 4)
                     gUnknown_020314E0->catchModeSpecies = SPECIES_CHIKORITA;
             }
 
-            if (gUnknown_0200B134[SPECIES_TOTODILE])
+            if (gMain+0x74[SPECIES_TOTODILE])
             {
                 specialMons[numSpecialMons++] = SPECIES_TOTODILE;
-                if (gUnknown_0200B134[SPECIES_TOTODILE] < 4)
+                if (gMain+0x74[SPECIES_TOTODILE] < 4)
                     gUnknown_020314E0->catchModeSpecies = SPECIES_TOTODILE;
             }
 
-            if (gUnknown_0200B134[SPECIES_CYNDAQUIL])
+            if (gMain+0x74[SPECIES_CYNDAQUIL])
             {
                 specialMons[numSpecialMons++] = SPECIES_CYNDAQUIL;
-                if (gUnknown_0200B134[SPECIES_CYNDAQUIL] < 4)
+                if (gMain+0x74[SPECIES_CYNDAQUIL] < 4)
                     gUnknown_020314E0->catchModeSpecies = SPECIES_CYNDAQUIL;
             }
 
diff --git a/src/rom_528AC.c b/src/rom_528AC.c
new file mode 100644
index 0000000..f1c7d5f
--- /dev/null
+++ b/src/rom_528AC.c
@@ -0,0 +1,254 @@
+#include "global.h"
+#include "m4a.h"
+#include "agb_sram.h"
+#include "main.h"
+
+extern const u16 gUnknown_08527F18[];
+
+#ifdef NONMATCHING
+// Like sub_C24, it matches except for that damn 'push {lr}/pop {lr}'
+int sub_528AC(u16 a)
+{
+    if (a <= 0xFA)
+        return a;
+    if (a <= 0x113)
+        return 0xC8;
+    return gUnknown_08527F18[a - 0x114];
+}
+#else
+NAKED
+int sub_528AC(u16 a)
+{
+    asm_unified("\n\
+        lsls r0, r0, #0x10\n\
+        lsrs r0, r0, #0x10\n\
+        adds r1, r0, #0\n\
+        cmp r0, #0xfa\n\
+        bls _080528DA\n\
+        ldr r0, _080528CC @ =0x00000113\n\
+        cmp r1, r0\n\
+        bls _080528D8\n\
+        ldr r0, _080528D0 @ =gUnknown_08527F18\n\
+        ldr r2, _080528D4 @ =0xFFFFFEEC\n\
+        adds r1, r1, r2\n\
+        lsls r1, r1, #1\n\
+        adds r1, r1, r0\n\
+        ldrh r0, [r1]\n\
+        b _080528DA\n\
+        .align 2, 0\n\
+_080528CC: .4byte 0x00000113\n\
+_080528D0: .4byte gUnknown_08527F18\n\
+_080528D4: .4byte 0xFFFFFEEC\n\
+_080528D8:\n\
+        movs r0, #0xc8\n\
+_080528DA:\n\
+        bx lr");
+}
+#endif
+
+void sub_52940(u16, s8, s8, u8, int);
+
+void sub_528DC(u16 a, s8 b)
+{
+    m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 0x99);
+    sub_52940(a, b, 0x7D, 10, 0);
+}
+
+void sub_5291C(u16 a, s8 b, s8 c, u8 d)
+{
+    sub_52940(a, b, c, d, 0);
+}
+
+extern struct ToneData gUnknown_08532D6C[];
+extern struct ToneData gUnknown_08533360[];
+extern struct ToneData gUnknown_08533960[];
+extern struct ToneData gUnknown_08533F60[];
+
+void sub_52940(u16 a, s8 b, s8 c, u8 d, int unused)
+{
+    u16 r5 = a - 1;
+    u32 pitch = 0x3C00;
+    u32 var;
+    u32 r1;
+    u8 r0;
+
+    SetPokemonCryVolume(c);
+    SetPokemonCryPanpot(b);
+    SetPokemonCryPitch(pitch);
+    SetPokemonCryLength(0x8C);
+    SetPokemonCryProgress(0);
+    SetPokemonCryRelease(0);
+    SetPokemonCryChorus(0);
+    SetPokemonCryPriority(d);
+    var = sub_528AC(r5);
+    r1 = var & 0x7F;
+    r0 = var >> 7;
+    switch (r0)
+    {
+    case 0:
+        SetPokemonCryTone(&gUnknown_08532D6C[r1]);
+        break;
+    case 1:
+        SetPokemonCryTone(&gUnknown_08533360[r1]);
+        break;
+    case 2:
+        SetPokemonCryTone(&gUnknown_08533960[r1]);
+        break;
+    case 3:
+        SetPokemonCryTone(&gUnknown_08533F60[r1]);
+        break;
+    }
+}
+
+extern u16 sub_52A68(void);
+extern void sub_525CC(s8);
+
+void sub_52A18(void)
+{
+    SetSramFastFunc();
+    gMain.unkC = 0;
+    if (sub_52A68() == 0)
+    {
+        sub_52C64();
+        sub_52B30();
+        if (sub_52A68() == 0)
+        {
+            gMain.unkC = 1;
+            sub_52C64();
+        }
+    }
+    else
+    {
+        sub_525CC(gMain.saveData.unk143);
+    }
+}
+
+extern struct Main2 gMain_;
+extern u8 gSaveFileSignature[];
+
+u16 sub_52A68(void)
+{
+    u16 r8 = 0;
+    u16 fileNum;
+    u16 i;
+    u32 checksum;
+
+    // Looks like there are two copies of the save data, one used as a backup?
+    for (fileNum = 0; fileNum < 2; fileNum++)
+    {
+        u16 *saveData = (u16 *)&gMain.saveData;
+        u32 size = 0x274;
+
+        ReadSramFast((u8 *)0x0E000004 + fileNum * 672, (u8 *)saveData, size);
+
+        // Verify signature
+        for (i = 0; i < 10; i++)
+        {
+            if (gMain.saveData.signature[i] != gSaveFileSignature[i])
+                break;
+        }
+        if (i != 10)
+            continue;
+
+        // Verify checksum
+        checksum = 0;
+        while (size > 1)
+        {
+            checksum += *saveData++;
+            size -= 2;
+        }
+        if (size != 0)  // never happens (size is even)
+            checksum += *saveData & 0xFF00;
+        checksum = (checksum & 0xFFFF) + (checksum >> 16);
+        if (checksum == 0xFFFF)
+        {
+            r8 = 1;
+            break;
+        }
+    }
+    return r8;
+}
+
+// I really think gUnknown_0200B134_ is part of gMain, but the code doesn't
+// match if I do that.
+#ifdef NONMATCHING
+#define gUnknown_0200B134_ gMain.saveData
+#else
+extern struct SaveData gUnknown_0200B134_;  // gMain.saveData
+asm(".set gUnknown_0200B134_, gMain+0x74");
+#endif
+
+void sub_52B30(void)
+{
+    u32 checksum;
+    u16 *saveData = (u16 *)&gUnknown_0200B134_;
+    u32 size = 0x274;
+
+    gUnknown_0200B134_.unk2E4++;
+    gUnknown_0200B134_.unk2E2 = 0;
+
+    checksum = 0;
+    while (size > 1)
+    {
+	checksum += *saveData++;
+	size -= 2;
+    }
+    if (size != 0)  // never happens (size is even)
+	checksum += *saveData & 0xFF00;
+    checksum = (checksum & 0xFFFF) + (checksum >> 16);
+    gUnknown_0200B134_.unk2E2 = ~((checksum >> 16) + checksum);
+
+    WriteAndVerifySramFast((u8 *)&gUnknown_0200B134_, (u8 *)0x0E000004, 0x274);
+    WriteAndVerifySramFast((u8 *)&gUnknown_0200B134_, (u8 *)0x0E0002A4, 0x274);
+}
+
+void sub_52BB0(s16 a, u8 b)
+{
+    u16 *saveData = (u16 *)&gUnknown_0200B134_;
+    u32 size = 0x274;
+    u32 checksum;
+
+    if (gUnknown_0200B134_.pokedexFlags[a] < b)
+    {
+	u16 r1;
+
+	gUnknown_0200B134_.unk2E4++;
+	r1 = 0;
+	gUnknown_0200B134_.pokedexFlags[a] = b;
+	gUnknown_0200B134_.unk2E2 = r1;
+
+	checksum = 0;
+	while (size > 1)
+	{
+	    checksum += *saveData++;
+	    size -= 2;
+	}
+	if (size != 0)  // never happens (size is even)
+	    checksum += *saveData & 0xFF00;
+	checksum = (checksum & 0xFFFF) + (checksum >> 16);
+	gUnknown_0200B134_.unk2E2 = ~((checksum >> 16) + checksum);
+
+	WriteAndVerifySramFast((u8 *)&gUnknown_0200B134_, (u8 *)0x0E000004, 0x274);
+	WriteAndVerifySramFast((u8 *)&gUnknown_0200B134_, (u8 *)0x0E0002A4, 0x274);
+    }
+}
+
+void sub_52C44(void)
+{
+    ReadSramFast((u8 *)0x0E000544, (u8 *)&gMain.hasSavedGame, sizeof(gMain.hasSavedGame));
+}
+
+void sub_52C64(void)
+{
+    s16 r1;
+
+    for (r1 = 0; r1 < 10; r1++)
+	gUnknown_0200B134_.signature[r1] = gSaveFileSignature[r1];
+    gUnknown_0200B134_.unk2E4 = 0;
+    gUnknown_0200B134_.unk141 = 0;
+    gUnknown_0200B134_.unk142 = 0;
+    sub_525CC(-1);
+    sub_F6E0();
+    sub_8ABC();
+    gUnknown_0200B134_.unk143 = 0;
+}