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Documentation of ereader_helpers, 1

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This commit is contained in:
PikalaxALT
2019-04-04 11:55:18 -04:00
committed by huderlem
parent b3a4509b9a
commit c46f271f67
9 changed files with 128 additions and 126 deletions
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src/ereader_helpers.c
+34 -35
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@@ -26,17 +26,17 @@ static void sub_81D414C(void);
static void sub_81D3F1C(u32, u32*, u32*);
static void sub_81D3F68(void);
extern struct Unknown030012C8 gUnknown_030012C8;
extern u16 gUnknown_030012E0;
extern u16 gUnknown_030012E2;
extern u16 gUnknown_030012E4;
extern u16 gUnknown_030012E6;
extern u32 gUnknown_030012E8;
extern u16 gUnknown_030012EC;
extern u16 gUnknown_030012EE;
extern u16 gUnknown_030012F0;
extern u16 gUnknown_030012F2;
extern u16 gUnknown_030012F4;
IWRAM_DATA struct Unknown030012C8 gUnknown_030012C8;
IWRAM_DATA u16 gUnknown_030012E0;
IWRAM_DATA u16 gUnknown_030012E2;
IWRAM_DATA u16 gUnknown_030012E4;
IWRAM_DATA u16 gUnknown_030012E6;
IWRAM_DATA u32 gUnknown_030012E8;
IWRAM_DATA u16 gUnknown_030012EC;
IWRAM_DATA u16 gUnknown_030012EE;
IWRAM_DATA u16 gUnknown_030012F0;
IWRAM_DATA u16 gUnknown_030012F2;
IWRAM_DATA u16 gUnknown_030012F4;
extern const u8 gUnknown_08625B6C[];
@@ -45,7 +45,7 @@ static u8 sub_81D38D4(void)
return (gSaveBlock1Ptr->trainerHill.unused + 1) % 256;
}
static bool32 sub_81D38FC(struct Unk81D38FC *arg0)
static bool32 Struct_Unk81D38FC_ValidateChecksum(struct Unk81D38FC *arg0)
{
int checksum = CalcByteArraySum(arg0->unk0, 0x270);
if (checksum != arg0->checksum)
@@ -54,43 +54,42 @@ static bool32 sub_81D38FC(struct Unk81D38FC *arg0)
return TRUE;
}
bool8 sub_81D3920(u8 *buffer)
bool8 EReader_IsReceivedDataValid(struct EReaderTrainerHillSet *buffer)
{
u32 i;
u32 checksum;
int var0 = buffer[0];
int var0 = buffer->unk_0;
if (var0 < 1 || var0 > 8)
return FALSE;
for (i = 0; i < var0; i++)
{
struct Unk81D38FC *var1 = (struct Unk81D38FC *)(&buffer[i * (sizeof(struct Unk81D38FC)) + 8]);
if (!sub_81D38FC(var1))
if (!Struct_Unk81D38FC_ValidateChecksum(&buffer->unk_8[i]))
return FALSE;
}
checksum = CalcByteArraySum(buffer + 8, var0 * 0x274);
if (checksum != ((int *)buffer)[1])
checksum = CalcByteArraySum((u8 *)buffer->unk_8, var0 * sizeof(struct Unk81D38FC));
if (checksum != buffer->checksum)
return FALSE;
return TRUE;
}
static bool32 sub_81D396C(u8 *buffer)
static bool32 TrainerHill_VerifyChecksum(struct EReaderTrainerHillSet *buffer)
{
u32 checksum;
int var0 = buffer[0];
int var0 = buffer->unk_0;
if (var0 < 1 || var0 > 8)
return FALSE;
checksum = CalcByteArraySum(buffer + 8, 0xEE0);
if (checksum != ((int *)buffer)[1])
checksum = CalcByteArraySum((u8 *)buffer->unk_8, sizeof(struct EReaderTrainerHillSet) - offsetof(struct EReaderTrainerHillSet, unk_8));
if (checksum != buffer->checksum)
return FALSE;
return TRUE;
}
static bool32 sub_81D3998(struct Unk81D38FC *arg0, u8 *buffer2)
static bool32 TryWriteTrainerHill_r(struct Unk81D38FC *arg0, u8 *buffer2)
{
int i;
const u8 *ereaderVals;
@@ -131,44 +130,44 @@ static bool32 sub_81D3998(struct Unk81D38FC *arg0, u8 *buffer2)
}
((int *)buffer2)[1] = CalcByteArraySum(buffer2 + 8, 0xEE0);
if (sub_8153634(SECTOR_ID_TRAINER_HILL, buffer2) != 1)
if (TryWriteSpecialSaveSection(SECTOR_ID_TRAINER_HILL, (u8 *)buffer2) != 1)
return FALSE;
return TRUE;
}
bool32 sub_81D3AB0(struct Unk81D38FC *arg0)
bool32 TryWriteTrainerHill(struct Unk81D38FC *arg0)
{
u8 *var0 = AllocZeroed(0x1000);
bool32 result = sub_81D3998(arg0, var0);
bool32 result = TryWriteTrainerHill_r(arg0, var0);
Free(var0);
return result;
}
static bool32 sub_81D3AD8(u8 *arg0, u8 *arg1)
static bool32 TryReadTrainerHill_r(struct EReaderTrainerHillSet *arg0, u8 *arg1)
{
if (TryCopySpecialSaveSection(SECTOR_ID_TRAINER_HILL, arg1) != 1)
if (TryReadSpecialSaveSection(SECTOR_ID_TRAINER_HILL, arg1) != 1)
return FALSE;
memcpy(arg0, arg1, 0xEE8);
if (!sub_81D396C(arg0))
memcpy(arg0, arg1, sizeof(struct EReaderTrainerHillSet));
if (!TrainerHill_VerifyChecksum(arg0))
return FALSE;
return TRUE;
}
static bool32 sub_81D3B0C(u8 *arg0)
static bool32 TryReadTrainerHill(struct EReaderTrainerHillSet *arg0)
{
u8 *var0 = AllocZeroed(0x1000);
bool32 result = sub_81D3AD8(arg0, var0);
bool32 result = TryReadTrainerHill_r(arg0, var0);
Free(var0);
return result;
}
bool32 sub_81D3B34(void)
bool32 ReadTrainerHillAndValidate(void)
{
u8 *var0 = AllocZeroed(0x1000);
bool32 result = sub_81D3B0C(var0);
struct EReaderTrainerHillSet *var0 = AllocZeroed(0x1000);
bool32 result = TryReadTrainerHill(var0);
Free(var0);
return result;
}