piwalker/melonDS
1
0
Fork 0
mirror of https://github.com/melonDS-emu/melonDS.git synced 2025-07-24 14:49:53 -06:00
Code Issues Packages Projects Releases Wiki Activity

actually make DSi-mode direct boot work to some extent

Browse Source
This commit is contained in:
Arisotura
2021-08-30 20:26:49 +02:00
parent b84155e891
commit 523552a92d
13 changed files with 500 additions and 213 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
src/DSi_NAND.cpp
View File

@ -436,6 +436,77 @@ bool ESDecrypt(u8* data, u32 len)
}
void ReadHardwareInfo(u8* dataS, u8* dataN)
{
FIL file;
FRESULT res;
u32 nread;
res = f_open(&file, "0:/sys/HWINFO_S.dat", FA_OPEN_EXISTING | FA_READ);
if (res == FR_OK)
{
f_read(&file, dataS, 0xA4, &nread);
f_close(&file);
}
res = f_open(&file, "0:/sys/HWINFO_N.dat", FA_OPEN_EXISTING | FA_READ);
if (res == FR_OK)
{
f_read(&file, dataN, 0x9C, &nread);
f_close(&file);
}
}
void ReadUserData(u8* data)
{
FIL file;
FRESULT res;
u32 nread;
FIL f1, f2;
int v1, v2;
res = f_open(&f1, "0:/shared1/TWLCFG0.dat", FA_OPEN_EXISTING | FA_READ);
if (res != FR_OK)
v1 = -1;
else
{
u8 tmp;
f_lseek(&f1, 0x81);
f_read(&f1, &tmp, 1, &nread);
v1 = tmp;
}
res = f_open(&f2, "0:/shared1/TWLCFG1.dat", FA_OPEN_EXISTING | FA_READ);
if (res != FR_OK)
v2 = -1;
else
{
u8 tmp;
f_lseek(&f2, 0x81);
f_read(&f2, &tmp, 1, &nread);
v2 = tmp;
}
if (v1 < 0 && v2 < 0) return;
if (v2 > v1)
{
file = f2;
f_close(&f1);
}
else
{
file = f1;
f_close(&f2);
}
f_lseek(&file, 0);
f_read(&file, data, 0x1B0, &nread);
f_close(&file);
}
void PatchTSC()
{
FRESULT res;