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5b8d0f1c33
pokeemerald/src/ereader_helpers.c
PikalaxALT fb06e4a3c9 Modernize code 
Can compile with arm-none-eabi-gcc 8.3.0
gbafix correctly handles ELF input
2019-06-26 12:12:10 -04:00

544 lines
13 KiB
C
Executable File
Raw Blame History

#include "global.h"
#include "alloc.h"
#include "decompress.h"
#include "ereader_helpers.h"
#include "link.h"
#include "main.h"
#include "union_room.h"
#include "save.h"
#include "sprite.h"
#include "task.h"
#include "util.h"
struct Unknown030012C8
{
u8 unk0[8];
u32 *unk8;
int unkC;
int unk10;
int unk14;
};
static void sub_81D4170(void);
static u16 sub_81D3EE8(u8);
static void sub_81D413C(void);
static void sub_81D414C(void);
static void sub_81D3F1C(u32, u32*, u32*);
static void sub_81D3F68(void);
static struct Unknown030012C8 gUnknown_030012C8;
static u16 gUnknown_030012E0;
static u16 gUnknown_030012E2;
static u16 gUnknown_030012E4;
static u16 gUnknown_030012E6;
static u32 gUnknown_030012E8;
static u16 gUnknown_030012EC;
static u16 gUnknown_030012EE;
static u16 gUnknown_030012F0;
static u16 gUnknown_030012F2;
static u16 gUnknown_030012F4;
extern const u8 gUnknown_08625B6C[][0x148];
static u8 sub_81D38D4(void)
{
return (gSaveBlock1Ptr->trainerHill.unused + 1) % 256;
}
static bool32 Struct_Unk81D38FC_ValidateChecksum(struct Unk81D38FC *arg0)
{
int checksum = CalcByteArraySum((u8 *)arg0, 0x270);
if (checksum != arg0->checksum)
return FALSE;
return TRUE;
}
bool8 EReader_IsReceivedDataValid(struct EReaderTrainerHillSet *buffer)
{
u32 i;
u32 checksum;
int var0 = buffer->unk_0;
if (var0 < 1 || var0 > 8)
return FALSE;
for (i = 0; i < var0; i++)
{
if (!Struct_Unk81D38FC_ValidateChecksum(&buffer->unk_8[i]))
return FALSE;
}
checksum = CalcByteArraySum((u8 *)buffer->unk_8, var0 * sizeof(struct Unk81D38FC));
if (checksum != buffer->checksum)
return FALSE;
return TRUE;
}
static bool32 TrainerHill_VerifyChecksum(struct EReaderTrainerHillSet *buffer)
{
u32 checksum;
int var0 = buffer->unk_0;
if (var0 < 1 || var0 > 8)
return FALSE;
checksum = CalcByteArraySum((u8 *)buffer->unk_8, sizeof(struct EReaderTrainerHillSet) - offsetof(struct EReaderTrainerHillSet, unk_8));
if (checksum != buffer->checksum)
return FALSE;
return TRUE;
}
static bool32 TryWriteTrainerHill_r(struct EReaderTrainerHillSet *arg0, struct Unk81D3998 *buffer2)
{
int i;
memset(buffer2, 0, 0x1000);
buffer2->unk_000 = arg0->unk_0;
buffer2->unk_001 = sub_81D38D4();
buffer2->unk_002 = (arg0->unk_0 + 1) / 2;
for (i = 0; i < arg0->unk_0; i++)
{
if (!(i & 1))
{
buffer2->unk_008[i / 2].unk_000[0] = arg0->unk_8[i].unk0;
memcpy(buffer2->unk_008[i / 2].unk_294, arg0->unk_8[i].unk14C, 0x124);
memcpy(buffer2->unk_008[i / 2].unk_004, arg0->unk_8[i].unk4, 0x148);
}
else
{
buffer2->unk_008[i / 2].unk_000[1] = arg0->unk_8[i].unk0;
memcpy(buffer2->unk_008[i / 2].unk_14C, arg0->unk_8[i].unk4, 0x148);
}
}
if (i & 1)
{
u8 * dest = buffer2->unk_008[i / 2].unk_14C;
const u8 (* src)[0x148] = gUnknown_08625B6C;
memcpy(dest, src[i / 2], 0x148);
}
buffer2->checksum = CalcByteArraySum((u8 *)buffer2->unk_008, sizeof(struct Unk81D3998) - offsetof(struct Unk81D3998, unk_008));
if (TryWriteSpecialSaveSection(SECTOR_ID_TRAINER_HILL, (u8 *)buffer2) != 1)
return FALSE;
return TRUE;
}
bool32 TryWriteTrainerHill(struct EReaderTrainerHillSet *arg0)
{
struct Unk81D3998 *var0 = AllocZeroed(0x1000);
bool32 result = TryWriteTrainerHill_r(arg0, var0);
Free(var0);
return result;
}
static bool32 TryReadTrainerHill_r(struct EReaderTrainerHillSet *arg0, u8 *arg1)
{
if (TryReadSpecialSaveSection(SECTOR_ID_TRAINER_HILL, arg1) != 1)
return FALSE;
memcpy(arg0, arg1, sizeof(struct EReaderTrainerHillSet));
if (!TrainerHill_VerifyChecksum(arg0))
return FALSE;
return TRUE;
}
static bool32 TryReadTrainerHill(struct EReaderTrainerHillSet *arg0)
{
u8 *var0 = AllocZeroed(0x1000);
bool32 result = TryReadTrainerHill_r(arg0, var0);
Free(var0);
return result;
}
bool32 ReadTrainerHillAndValidate(void)
{
struct EReaderTrainerHillSet *var0 = AllocZeroed(0x1000);
bool32 result = TryReadTrainerHill(var0);
Free(var0);
return result;
}
static int unref_sub_81D3B54(int arg0, u32 *arg1)
{
int result;
u16 var0;
int var1;
sub_81D41A0();
while (1)
{
sub_81D4170();
if (gUnknown_030012E2 & 2)
gShouldAdvanceLinkState = 2;
var1 = sub_81D3D70(1, arg0, arg1, NULL);
gUnknown_030012E4 = var1;
if ((gUnknown_030012E4 & 0x13) == 0x10)
{
result = 0;
break;
}
if (gUnknown_030012E4 & 0x8)
{
result = 1;
break;
}
var0 = gUnknown_030012E4 & 0x4;
if (var0)
{
result = 2;
break;
}
gShouldAdvanceLinkState = var0;
VBlankIntrWait();
}
CpuFill32(0, &gUnknown_030012C8, sizeof(struct Unknown030012C8));
sub_81D41F4();
return result;
}
static int unref_sub_81D3BE8(u32 *arg0)
{
int result;
u16 var0;
int var1;
sub_81D41A0();
while (1)
{
sub_81D4170();
if (gUnknown_030012E2 & 2)
gShouldAdvanceLinkState = 2;
var1 = sub_81D3D70(0, 0, NULL, arg0);
gUnknown_030012E4 = var1;
if ((gUnknown_030012E4 & 0x13) == 0x10)
{
result = 0;
break;
}
if (gUnknown_030012E4 & 0x8)
{
result = 1;
break;
}
var0 = gUnknown_030012E4 & 0x4;
if (var0)
{
result = 2;
break;
}
gShouldAdvanceLinkState = var0;
VBlankIntrWait();
}
CpuFill32(0, &gUnknown_030012C8, sizeof(struct Unknown030012C8));
sub_81D41F4();
return result;
}
static void sub_81D3C7C(void)
{
REG_IME = 0;
REG_IE &= ~(INTR_FLAG_TIMER3 | INTR_FLAG_SERIAL);
REG_IME = 1;
REG_SIOCNT = 0;
REG_TM3CNT_H = 0;
REG_IF = INTR_FLAG_TIMER3 | INTR_FLAG_SERIAL;
}
static void sub_81D3CBC(void)
{
REG_IME = 0;
REG_IE &= ~(INTR_FLAG_TIMER3 | INTR_FLAG_SERIAL);
REG_IME = 1;
REG_RCNT = 0;
REG_SIOCNT = SIO_MULTI_MODE;
REG_SIOCNT |= SIO_INTR_ENABLE | SIO_115200_BPS;
REG_IME = 0;
REG_IE |= INTR_FLAG_SERIAL;
REG_IME = 1;
if (!gUnknown_030012C8.unk0[1])
CpuFill32(0, &gUnknown_030012C8, sizeof(struct Unknown030012C8));
}
static void sub_81D3D34(void)
{
REG_RCNT = 0;
REG_SIOCNT = SIO_32BIT_MODE | SIO_INTR_ENABLE;
REG_SIOCNT |= SIO_MULTI_SD;
gShouldAdvanceLinkState = 0;
gUnknown_030012E6 = 0;
gUnknown_030012E8 = 0;
}
int sub_81D3D70(u8 arg0, u32 arg1, u32 *arg2, u32 *arg3)
{
switch (gUnknown_030012C8.unk0[1])
{
case 0:
sub_81D3CBC();
gUnknown_030012C8.unk0[2] = 1;
gUnknown_030012C8.unk0[1] = 1;
break;
case 1:
if (sub_81D3EE8(arg0))
sub_81D413C();
if (gShouldAdvanceLinkState == 2)
{
gUnknown_030012C8.unk0[4] = 2;
gUnknown_030012C8.unk0[1] = 6;
}
break;
case 2:
sub_81D3D34();
sub_81D3F1C(arg1, arg2, arg3);
gUnknown_030012C8.unk0[1] = 3;
// fall through
case 3:
if (gShouldAdvanceLinkState == 2)
{
gUnknown_030012C8.unk0[4] = 2;
gUnknown_030012C8.unk0[1] = 6;
}
else
{
gUnknown_030012E6++;
gUnknown_030012E8++;
if (!gUnknown_030012C8.unk0[0] && gUnknown_030012E8 > 60)
{
gUnknown_030012C8.unk0[4] = 1;
gUnknown_030012C8.unk0[1] = 6;
}
if (gUnknown_030012C8.unk0[2] != 2)
{
if (gUnknown_030012C8.unk0[0] && gUnknown_030012E6 > 2)
{
sub_81D413C();
gUnknown_030012C8.unk0[2] = 2;
}
else
{
sub_81D413C();
gUnknown_030012C8.unk0[2] = 2;
}
}
}
break;
case 4:
sub_81D3CBC();
gUnknown_030012C8.unk0[1] = 5;
break;
case 5:
if (gUnknown_030012C8.unk0[0] == 1 && gUnknown_030012E6 > 2)
sub_81D413C();
if (++gUnknown_030012E6 > 60)
{
gUnknown_030012C8.unk0[4] = 1;
gUnknown_030012C8.unk0[1] = 6;
}
break;
case 6:
if (gUnknown_030012C8.unk0[2])
{
sub_81D3C7C();
gUnknown_030012C8.unk0[2] = 0;
}
break;
}
return gUnknown_030012C8.unk0[2] | (gUnknown_030012C8.unk0[4] << 2) | (gUnknown_030012C8.unk0[3] << 4);
}
static u16 sub_81D3EE8(u8 arg0)
{
u16 terminal = (*(vu32 *)REG_ADDR_SIOCNT) & (SIO_MULTI_SI | SIO_MULTI_SD);
if (terminal == SIO_MULTI_SD && arg0)
{
gUnknown_030012C8.unk0[0] = 1;
return 1;
}
else
{
gUnknown_030012C8.unk0[0] = 0;
return 0;
}
}
static void sub_81D3F1C(u32 arg0, u32 *arg1, u32 *arg2)
{
if (gUnknown_030012C8.unk0[0])
{
REG_SIOCNT |= SIO_38400_BPS;
gUnknown_030012C8.unk8 = arg1;
REG_SIODATA32 = arg0;
gUnknown_030012C8.unk10 = arg0 / 4 + 1;
sub_81D3F68();
}
else
{
REG_SIOCNT = REG_SIOCNT;
gUnknown_030012C8.unk8 = arg2;
}
}
static void sub_81D3F68(void)
{
REG_TM3CNT_L = 0xFDA7;
REG_TM3CNT_H = TIMER_INTR_ENABLE;
REG_IME = 0;
REG_IE |= INTR_FLAG_TIMER3;
REG_IME = 1;
}
void sub_81D3F9C(void)
{
sub_81D414C();
sub_81D413C();
}
void sub_81D3FAC(void)
{
u16 i, playerCount, k;
u32 value;
u16 var0;
u16 recvBuffer[4];
switch (gUnknown_030012C8.unk0[1])
{
case 1:
REG_SIOMLT_SEND = 0xCCD0; // Handshake id
*(u64 *)recvBuffer = REG_SIOMLT_RECV;
for (i = 0, playerCount = 0, k = 0; i < 4; i++)
{
if (recvBuffer[i] == 0xCCD0)
playerCount++;
else if (recvBuffer[i] != 0xFFFF)
k++;
}
if (playerCount == 2 && k == 0)
gUnknown_030012C8.unk0[1] = 2;
break;
case 3:
value = REG_SIODATA32;
if (!gUnknown_030012C8.unkC && !gUnknown_030012C8.unk0[0])
gUnknown_030012C8.unk10 = value / 4 + 1;
if (gUnknown_030012C8.unk0[0] == 1)
{
if (gUnknown_030012C8.unkC < gUnknown_030012C8.unk10)
{
REG_SIODATA32 = gUnknown_030012C8.unk8[gUnknown_030012C8.unkC];
gUnknown_030012C8.unk14 += gUnknown_030012C8.unk8[gUnknown_030012C8.unkC];
}
else
{
REG_SIODATA32 = gUnknown_030012C8.unk14;
}
}
else
{
if (gUnknown_030012C8.unkC > 0 && gUnknown_030012C8.unkC < gUnknown_030012C8.unk10 + 1)
{
gUnknown_030012C8.unk8[gUnknown_030012C8.unkC - 1] = value;
gUnknown_030012C8.unk14 += value;
}
else if (gUnknown_030012C8.unkC)
{
if (gUnknown_030012C8.unk14 == value)
gUnknown_030012C8.unk0[3] = 1;
else
gUnknown_030012C8.unk0[3] = 2;
}
gUnknown_030012E8 = 0;
}
if (++gUnknown_030012C8.unkC < gUnknown_030012C8.unk10 + 2)
{
if (gUnknown_030012C8.unk0[0])
REG_TM3CNT_H |= TIMER_ENABLE;
else
sub_81D413C();
}
else
{
gUnknown_030012C8.unk0[1] = 4;
gUnknown_030012E6 = 0;
}
break;
case 5:
if (!gUnknown_030012C8.unk0[0])
REG_SIOMLT_SEND = gUnknown_030012C8.unk0[3];
*(u64 *)recvBuffer = REG_SIOMLT_RECV;
var0 = recvBuffer[1] - 1;
if (var0 < 2)
{
if (gUnknown_030012C8.unk0[0] == 1)
gUnknown_030012C8.unk0[3] = recvBuffer[1];
gUnknown_030012C8.unk0[1] = 6;
}
break;
}
}
static void sub_81D413C(void)
{
REG_SIOCNT |= SIO_ENABLE;
}
static void sub_81D414C(void)
{
REG_TM3CNT_H &= ~TIMER_ENABLE;
REG_TM3CNT_L = 0xFDA7;
}
static void sub_81D4170(void)
{
int keysMask = REG_KEYINPUT ^ KEYS_MASK;
gUnknown_030012E2 = keysMask & ~gUnknown_030012E0;
gUnknown_030012E0 = keysMask;
}
void sub_81D41A0(void)
{
gUnknown_030012EC = REG_IME;
gUnknown_030012EE = REG_IE;
gUnknown_030012F0 = REG_TM3CNT_H;
gUnknown_030012F2 = REG_SIOCNT;
gUnknown_030012F4 = REG_RCNT;
}
void sub_81D41F4(void)
{
REG_IME = gUnknown_030012EC;
REG_IE = gUnknown_030012EE;
REG_TM3CNT_H = gUnknown_030012F0;
REG_SIOCNT = gUnknown_030012F2;
REG_RCNT = gUnknown_030012F4;
}
void sub_81D4238(void)
{
CpuFill32(0, &gUnknown_030012C8, sizeof(struct Unknown030012C8));
}
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