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#include "global.h"
extern u32 gUnknown_203B17C;
extern u32 gUnknown_203B180;
extern vu32 gUnknown_203B184;
extern u32 gUnknown_202DE28;
extern s32 ReadFlashData(s32 sector, u8 *src, s32 size);
extern s32 WriteFlashData(s32 sector, u8 *src, s32 size);
extern bool8 sub_800DAB0(u16, u8*, s32);
extern bool8 sub_800DAB4(u16, u8*, s32);
extern bool8 sub_800DAB8(void);
u32 sub_8011C1C(void)
{
return gUnknown_203B17C;
}
void sub_8011C28(u32 in)
{
gUnknown_203B17C = in;
}
u32 sub_8011C34(void)
{
return gUnknown_202DE28;
}
void sub_8011C40(u32 in)
{
gUnknown_202DE28 = in;
}
u32 sub_8011C4C(void)
{
return gUnknown_203B180;
}
void CalculateChecksum(u8 *out, u32 size)
{
u32 checksum = 0;
s32 i = size / 4;
if (i > 1)
{
u32 *ptr = (u32 *)&out[4];
--i;
do
checksum += *ptr++;
while (--i);
}
*(u32 *)out = checksum;
}
bool8 ValidateChecksum(u8 *in, u32 size)
{
u32 checksum = 0;
s32 i = size / 4;
if (i > 1)
{
u32 *ptr = (u32 *)&in[4];
--i;
do
checksum += *ptr++;
while (--i);
}
if (*(u32 *)in != checksum)
return TRUE;
return FALSE;
}
void sub_8011CA8(u32 *out, s32 b)
{
gUnknown_203B184; // Needed to match
*out += (b + 0xFFF) / 0x1000;
}
u32 WriteSaveSector(u32 *a, u8 *b, s32 size, u32 d)
{
u32 r6 = *a;
u32 num;
sub_8011CA8(a, size);
CalculateChecksum(b, size);
if (!gUnknown_203B184) {
num = WriteFlashData(r6, b, size);
}
else if (sub_800DAB8()) {
num = sub_800DAB4(r6, b, size) ? 0 : 3;
}
else {
return 2;
}
if (num == 4) {
return 1;
}
else if (num) {
return 2;
}
else {
return 0;
}
}
u32 ReadSaveSector(u32 *a, u8 *b, s32 size, u32 d)
{
u32 r6 = *a;
u32 num;
sub_8011CA8(a, size);
if (!gUnknown_203B184) {
num = ReadFlashData(r6, b, size);
}
else if (sub_800DAB8()) {
if (!sub_800DAB0(r6, b, size)) {
num = 1;
}
else {
num = 0;
}
}
else {
return 1;
}
if (num) {
return 1;
}
if (ValidateChecksum(b, size)) {
return 2;
}
return 0;
}
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