begin decompiling main.s
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YamaArashi
380
src/main.c
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380
src/main.c
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#include "global.h"
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#include "main.h"
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#include "gba/flash_internal.h"
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#include "gba/m4a_internal.h"
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extern struct SoundInfo gSoundInfo;
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extern u32 gFlashMemoryPresent;
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extern u32 IntrMain[];
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extern u8 gHeap[];
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extern struct SaveBlock2 gUnknown_02024A54;
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extern char *gUnknown_03005D94;
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extern char gUnknown_02029808[];
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extern u32 gUnknown_0203CF5C;
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void Timer3Intr(void);
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bool8 HandleLinkConnection(void);
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void c2_copyright_1(void);
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static void VBlankIntr(void);
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static void HBlankIntr(void);
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static void VCountIntr(void);
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static void SerialIntr(void);
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static void IntrDummy(void);
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const u8 gGameVersion = VERSION_EMERALD;
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const u8 gGameLanguage = GAME_LANGUAGE; // English
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const char BuildDateTime[] = "2005 02 21 11:10";
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const IntrFunc gIntrTableTemplate[] =
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{
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VCountIntr, // V-count interrupt
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SerialIntr, // Serial interrupt
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Timer3Intr, // Timer 3 interrupt
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HBlankIntr, // H-blank interrupt
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VBlankIntr, // V-blank interrupt
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IntrDummy, // Timer 0 interrupt
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IntrDummy, // Timer 1 interrupt
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IntrDummy, // Timer 2 interrupt
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IntrDummy, // DMA 0 interrupt
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IntrDummy, // DMA 1 interrupt
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IntrDummy, // DMA 2 interrupt
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IntrDummy, // DMA 3 interrupt
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IntrDummy, // Key interrupt
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IntrDummy, // Game Pak interrupt
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};
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#define INTR_COUNT ((int)(sizeof(gIntrTableTemplate)/sizeof(IntrFunc)))
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extern u16 gUnknown_03000000;
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extern u16 gKeyRepeatStartDelay;
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extern u8 gUnknown_030022B4;
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extern struct Main gMain;
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extern u16 gKeyRepeatContinueDelay;
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extern u8 gSoftResetDisabled;
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extern IntrFunc gIntrTable[INTR_COUNT];
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extern bool8 gLinkVSyncDisabled;
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extern u32 IntrMain_Buffer[0x200];
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extern u8 gPcmDmaCounter;
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extern u16 gTrainerId;
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EWRAM_DATA void (**gFlashTimerIntrFunc)(void) = NULL;
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static void UpdateLinkAndCallCallbacks(void);
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static void InitMainCallbacks(void);
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static void CallCallbacks(void);
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static void SeedRngWithRtc(void);
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static void ReadKeys(void);
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static void InitIntrHandlers(void);
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static void WaitForVBlank(void);
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#define B_START_SELECT (B_BUTTON | START_BUTTON | SELECT_BUTTON)
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void AgbMain()
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{
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RegisterRamReset(RESET_ALL);
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*(vu16 *)BG_PLTT = 0x7FFF;
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InitGpuRegManager();
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REG_WAITCNT = WAITCNT_PREFETCH_ENABLE | WAITCNT_WS0_S_1 | WAITCNT_WS0_N_3;
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InitKeys();
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InitIntrHandlers();
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m4aSoundInit();
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EnableVCountIntrAtLine150();
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sub_800E6D0();
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RtcInit();
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CheckForFlashMemory();
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InitMainCallbacks();
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InitMapMusic();
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ClearDma3Requests();
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ResetBgs();
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SetDefaultFontsPointer();
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InitHeap(gHeap, 0x1C000);
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gSoftResetDisabled = FALSE;
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if (gFlashMemoryPresent != TRUE)
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SetMainCallback2(NULL);
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gUnknown_030022B4 = 0;
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gUnknown_03000000 = 0xFC0;
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for (;;)
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{
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ReadKeys();
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if (gSoftResetDisabled == FALSE
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&& (gMain.heldKeysRaw & A_BUTTON)
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&& (gMain.heldKeysRaw & B_START_SELECT) == B_START_SELECT)
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{
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rfu_REQ_stopMode();
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rfu_waitREQComplete();
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DoSoftReset();
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}
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if (sub_8087634() == 1)
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{
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gUnknown_030022B4 = 1;
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UpdateLinkAndCallCallbacks();
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gUnknown_030022B4 = 0;
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}
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else
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{
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gUnknown_030022B4 = 0;
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UpdateLinkAndCallCallbacks();
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if (sub_80875C8() == 1)
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{
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gMain.newKeys = 0;
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ClearObjectCopyRequests();
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gUnknown_030022B4 = 1;
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UpdateLinkAndCallCallbacks();
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gUnknown_030022B4 = 0;
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}
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}
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PlayTimeCounter_Update();
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MapMusicMain();
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WaitForVBlank();
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}
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}
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static void UpdateLinkAndCallCallbacks(void)
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{
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if (!HandleLinkConnection())
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CallCallbacks();
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}
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static void InitMainCallbacks(void)
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{
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gMain.vblankCounter1 = 0;
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gUnknown_0203CF5C = 0;
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gMain.vblankCounter2 = 0;
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gMain.callback1 = NULL;
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SetMainCallback2(c2_copyright_1);
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gSaveBlock2Ptr = &gUnknown_02024A54;
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gUnknown_03005D94 = gUnknown_02029808;
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}
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static void CallCallbacks(void)
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{
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if (gMain.callback1)
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gMain.callback1();
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if (gMain.callback2)
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gMain.callback2();
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}
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void SetMainCallback2(MainCallback callback)
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{
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gMain.callback2 = callback;
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gMain.state = 0;
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}
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void StartTimer1(void)
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{
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REG_TM1CNT_H = 0x80;
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}
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void SeedRngAndSetTrainerId(void)
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{
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u16 val = REG_TM1CNT_L;
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SeedRng(val);
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REG_TM1CNT_H = 0;
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gTrainerId = val;
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}
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u16 GetTrainerId(void)
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{
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return gTrainerId;
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}
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/*
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void InitKeys(void)
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{
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gKeyRepeatContinueDelay = 5;
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gKeyRepeatStartDelay = 40;
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gMain.heldKeys = 0;
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gMain.newKeys = 0;
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gMain.newAndRepeatedKeys = 0;
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gMain.heldKeysRaw = 0;
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gMain.newKeysRaw = 0;
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}
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static void ReadKeys(void)
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{
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u16 keyInput = REG_KEYINPUT ^ KEYS_MASK;
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gMain.newKeysRaw = keyInput & ~gMain.heldKeysRaw;
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gMain.newKeys = gMain.newKeysRaw;
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gMain.newAndRepeatedKeys = gMain.newKeysRaw;
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// BUG: Key repeat won't work when pressing L using L=A button mode
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// because it compares the raw key input with the remapped held keys.
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// Note that newAndRepeatedKeys is never remapped either.
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if (keyInput != 0 && gMain.heldKeys == keyInput)
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{
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gMain.keyRepeatCounter--;
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if (gMain.keyRepeatCounter == 0)
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{
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gMain.newAndRepeatedKeys = keyInput;
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gMain.keyRepeatCounter = gKeyRepeatContinueDelay;
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}
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}
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else
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{
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// If there is no input or the input has changed, reset the counter.
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gMain.keyRepeatCounter = gKeyRepeatStartDelay;
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}
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gMain.heldKeysRaw = keyInput;
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gMain.heldKeys = gMain.heldKeysRaw;
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// Remap L to A if the L=A option is enabled.
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if (gSaveBlock2.optionsButtonMode == 2)
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{
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if (gMain.newKeys & L_BUTTON)
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gMain.newKeys |= A_BUTTON;
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if (gMain.heldKeys & L_BUTTON)
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gMain.heldKeys |= A_BUTTON;
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}
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if (gMain.newKeys & gMain.watchedKeysMask)
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gMain.watchedKeysPressed = TRUE;
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}
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static void InitIntrHandlers(void)
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{
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int i;
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for (i = 0; i < INTR_COUNT; i++)
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gIntrTable[i] = gIntrTableTemplate[i];
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DmaCopy32(3, IntrMain, IntrMain_Buffer, sizeof(IntrMain_Buffer));
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INTR_VECTOR = IntrMain_Buffer;
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SetVBlankCallback(NULL);
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SetHBlankCallback(NULL);
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SetSerialCallback(NULL);
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REG_IME = 1;
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REG_IE = INTR_FLAG_VBLANK;
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REG_DISPSTAT = DISPSTAT_VBLANK_INTR;
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REG_IE |= INTR_FLAG_VBLANK;
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}
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void SetVBlankCallback(IntrCallback callback)
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{
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gMain.vblankCallback = callback;
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}
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void SetHBlankCallback(IntrCallback callback)
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{
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gMain.hblankCallback = callback;
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}
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void SetVCountCallback(IntrCallback callback)
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{
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gMain.vcountCallback = callback;
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}
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void SetSerialCallback(IntrCallback callback)
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{
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gMain.serialCallback = callback;
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}
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static void VBlankIntr(void)
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{
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u16 savedIme;
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if (!gLinkVSyncDisabled)
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LinkVSync();
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savedIme = REG_IME;
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REG_IME = 0;
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m4aSoundVSync();
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REG_IME = savedIme;
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gMain.vblankCounter1++;
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if (gMain.vblankCallback)
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gMain.vblankCallback();
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gMain.vblankCounter2++;
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gPcmDmaCounter = gSoundInfo.pcmDmaCounter;
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m4aSoundMain();
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sub_800C35C();
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Random();
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INTR_CHECK |= INTR_FLAG_VBLANK;
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gMain.intrCheck |= INTR_FLAG_VBLANK;
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}
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void InitFlashTimer(void)
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{
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SetFlashTimerIntr(2, gFlashTimerIntrFunc);
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}
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static void HBlankIntr(void)
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{
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if (gMain.hblankCallback)
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gMain.hblankCallback();
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INTR_CHECK |= INTR_FLAG_HBLANK;
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gMain.intrCheck |= INTR_FLAG_HBLANK;
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}
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static void VCountIntr(void)
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{
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if (gMain.vcountCallback)
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gMain.vcountCallback();
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INTR_CHECK |= INTR_FLAG_VCOUNT;
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gMain.intrCheck |= INTR_FLAG_VCOUNT;
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}
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static void SerialIntr(void)
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{
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if (gMain.serialCallback)
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gMain.serialCallback();
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INTR_CHECK |= INTR_FLAG_SERIAL;
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gMain.intrCheck |= INTR_FLAG_SERIAL;
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}
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static void IntrDummy(void)
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{}
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static void WaitForVBlank(void)
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{
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gMain.intrCheck &= ~INTR_FLAG_VBLANK;
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VBlankIntrWait();
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}
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void DoSoftReset(void)
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{
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REG_IME = 0;
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m4aSoundVSyncOff();
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remove_some_task();
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DmaStop(1);
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DmaStop(2);
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DmaStop(3);
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SiiRtcProtect();
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SoftReset(RESET_ALL);
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}
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void ClearPokemonCrySongs(void)
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{
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CpuFill16(0, gPokemonCrySongs, MAX_POKEMON_CRIES * sizeof(struct PokemonCrySong));
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}
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*/
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