void initScreens(void)
{
static bool needToSetup = true;
if(needToSetup)
{
memcpy((void *)ARM11_PARAMETERS_ADDRESS, fbs, sizeof(fbs));
invokeArm11Function(SETUP_FRAMEBUFFERS);
if(!ARESCREENSINITIALIZED)
{
*(vu32 *)ARM11_PARAMETERS_ADDRESS = brightness[MULTICONFIG(BRIGHTNESS)];
invokeArm11Function(INIT_SCREENS);
//Turn on backlight
i2cWriteRegister(I2C_DEV_MCU, 0x22, 0x2A);
}
else updateBrightness(MULTICONFIG(BRIGHTNESS));
clearScreens(true);
needToSetup = false;
}
clearScreens(false);
swapFramebuffers(false);
}
void patchCode(u64 progId, u16 progVer, u8 *code, u32 size)
{
loadCFWInfo();
if(((progId == 0x0004003000008F02LL || //USA Home Menu
progId == 0x0004003000008202LL || //JPN Home Menu
progId == 0x0004003000009802LL) //EUR Home Menu
&& progVer > 4) ||
(progId == 0x000400300000A902LL //KOR Home Menu
&& progVer > 0) ||
progId == 0x000400300000A102LL || //CHN Home Menu
progId == 0x000400300000B102LL) //TWN Home Menu
{
static const u8 pattern[] = {
0x0A, 0x0C, 0x00, 0x10
},
patch[] = {
0x01, 0x00, 0xA0, 0xE3, 0x1E, 0xFF, 0x2F, 0xE1
};
//Patch SMDH region checks
if(!patchMemory(code, size,
pattern,
sizeof(pattern), -31,
patch,
sizeof(patch), 1
)) goto error;
}
else if(progId == 0x0004013000003202LL) //FRIENDS
{
static const u8 pattern[] = {
0x42, 0xE0, 0x1E, 0xFF
};
u8 mostRecentFpdVer = 8;
u8 *off = memsearch(code, pattern, size, sizeof(pattern));
if(off == NULL) goto error;
//Allow online access to work with old friends modules
if(off[0xA] < mostRecentFpdVer) off[0xA] = mostRecentFpdVer;
}
else if((progId == 0x0004001000021000LL || //USA MSET
progId == 0x0004001000020000LL || //JPN MSET
progId == 0x0004001000022000LL || //EUR MSET
progId == 0x0004001000026000LL || //CHN MSET
progId == 0x0004001000027000LL || //KOR MSET
progId == 0x0004001000028000LL) //TWN MSET
&& CONFIG(PATCHVERSTRING))
{
static const u16 pattern[] = u"Ve";
static u16 *patch;
u32 patchSize = 0,
currentNand = BOOTCFG_NAND;
u16 customVerString[19];
loadCustomVerString(customVerString, &patchSize, currentNand);
if(patchSize != 0) patch = customVerString;
else
{
patchSize = 8;
u32 currentFirm = BOOTCFG_FIRM;
static u16 *verStringsNands[] = { u" Sys",
u" Emu",
u"Emu2",
u"Emu3",
u"Emu4" },
*verStringsEmuSys[] = { u"EmuS",
u"Em2S",
u"Em3S",
u"Em4S" },
*verStringsSysEmu[] = { u"SysE",
u"SyE2",
u"SyE3",
u"SyE4" };
patch = (currentFirm != 0) == (currentNand != 0) ? verStringsNands[currentNand] :
(!currentNand ? verStringsSysEmu[currentFirm - 1] : verStringsEmuSys[currentNand - 1]);
}
//Patch Ver. string
if(!patchMemory(code, size,
pattern,
sizeof(pattern) - 2, 0,
patch,
patchSize, 1
)) goto error;
}
else if(progId == 0x0004013000008002LL) //NS
{
if(progVer > 4)
{
static const u8 pattern[] = {
0x0C, 0x18, 0xE1, 0xD8
},
patch[] = {
0x0B, 0x18, 0x21, 0xC8
};
//Disable updates from foreign carts (makes carts region-free)
u32 ret = patchMemory(code, size,
pattern,
sizeof(pattern), 0,
patch,
sizeof(patch), 2
);
if(ret == 0 || (ret == 1 && progVer > 0xB)) goto error;
}
if(LOADERFLAG(ISN3DS))
{
u32 cpuSetting = MULTICONFIG(NEWCPU);
if(cpuSetting != 0)
{
static const u8 pattern[] = {
0x0C, 0x00, 0x94, 0x15
};
u32 *off = (u32 *)memsearch(code, pattern, size, sizeof(pattern));
if(off == NULL) goto error;
//Patch N3DS CPU Clock and L2 cache setting
*(off - 4) = *(off - 3);
*(off - 3) = *(off - 1);
memcpy(off - 1, off, 16);
*(off + 3) = 0xE3800000 | cpuSetting;
}
}
}
else if(progId == 0x0004013000001702LL) //CFG
{
static const u8 pattern[] = {
0x06, 0x46, 0x10, 0x48
},
patch[] = {
0x00, 0x26
};
//Disable SecureInfo signature check
if(!patchMemory(code, size,
pattern,
sizeof(pattern), 0,
patch,
sizeof(patch), 1
)) goto error;
if(secureInfoExists())
{
static const u16 pattern[] = u"Sec",
patch[] = u"C";
//Use SecureInfo_C
if(patchMemory(code, size,
pattern,
sizeof(pattern) - 2, 22,
patch,
sizeof(patch) - 2, 2
) != 2) goto error;
}
}
else if(progId == 0x0004013000003702LL && progVer > 0) //RO
{
static const u8 pattern[] = {
0x20, 0xA0, 0xE1, 0x8B
},
pattern2[] = {
0xE1, 0x30, 0x40, 0x2D
},
pattern3[] = {
0x2D, 0xE9, 0x01, 0x70
},
patch[] = {
0x00, 0x00, 0xA0, 0xE3, 0x1E, 0xFF, 0x2F, 0xE1 //mov r0, #0; bx lr
};
//Disable CRR0 signature (RSA2048 with SHA256) check and CRO0/CRR0 SHA256 hash checks (section hashes, and hash table)
if(!patchMemory(code, size,
pattern,
sizeof(pattern), -9,
patch,
sizeof(patch), 1
) ||
!patchMemory(code, size,
pattern2,
sizeof(pattern2), 1,
patch,
sizeof(patch), 1
) ||
!patchMemory(code, size,
pattern3,
sizeof(pattern3), -2,
patch,
sizeof(patch), 1
)) goto error;
}
else if(progId == 0x0004003000008A02LL && MULTICONFIG(DEVOPTIONS) == 1) //ErrDisp
{
static const u8 pattern[] = {
0x00, 0xD0, 0xE5, 0xDB
},
pattern2[] = {
0x14, 0x00, 0xD0, 0xE5, 0x01
},
patch[] = {
0x00, 0x00, 0xA0, 0xE3
};
//Patch UNITINFO checks to make ErrDisp more verbose
if(!patchMemory(code, size,
pattern,
sizeof(pattern), -1,
patch,
sizeof(patch), 1
) ||
patchMemory(code, size,
pattern2,
sizeof(pattern2), 0,
patch,
sizeof(patch), 3
) != 3) goto error;
}
else if (progId == 0x0004013000003802LL) // ACT Module
{
antibanPatch(code, size);
}
if(CONFIG(PATCHGAMES) && (u32)((progId >> 0x20) & 0xFFFFFFEDULL) == 0x00040000)
{
u8 regionId = 0xFF,
languageId;
if(!loadTitleCodeSection(progId, code, size) ||
!loadTitleLocaleConfig(progId, ®ionId, &languageId)) goto error;
if(regionId != 0xFF)
{
u32 CFGUHandleOffset;
u8 *CFGU_GetConfigInfoBlk2_endPos = getCfgOffsets(code, size, &CFGUHandleOffset);
if(CFGU_GetConfigInfoBlk2_endPos == NULL ||
!patchCfgGetLanguage(code, size, languageId, CFGU_GetConfigInfoBlk2_endPos)) goto error;
patchCfgGetRegion(code, size, regionId, CFGUHandleOffset);
}
if(!patchRomfsRedirection(progId, code, size)) goto error;
}
return;
error:
svcBreak(USERBREAK_ASSERT);
while(true);
}
