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Add patch that removes the Year 2050 limit in System Settings date picker

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This restriction was completely artificial, rest of system supports 01
Jan 2000 - 31 Dec 2099 just fine.

NNID user's year-of-birth seems to have a similar Year 2050 restriction,
I'm not removing that as long as any NNID stuff is still active.
This commit is contained in:
TuxSH 2026-01-06 01:23:38 +01:00
parent c04c7254ed
commit a608ad8241
1 changed files with 54 additions and 22 deletions
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76
sysmodules/loader/source/patcher.c
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@ -734,33 +734,65 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
progId == 0x0004001000022000LL || //EUR MSET progId == 0x0004001000022000LL || //EUR MSET
progId == 0x0004001000026000LL || //CHN MSET progId == 0x0004001000026000LL || //CHN MSET
progId == 0x0004001000027000LL || //KOR MSET progId == 0x0004001000027000LL || //KOR MSET
progId == 0x0004001000028000LL) //TWN MSET progId == 0x0004001000028000LL)) //TWN MSET
&& CONFIG(PATCHVERSTRING))
{ {
static const u16 pattern[] = u"Ve"; if (CONFIG(PATCHVERSTRING))
const u16 *patch;
u32 patchSize = 0,
currentNand = BOOTCFG_NAND;
u16 customVerString[19];
loadCustomVerString(customVerString, &patchSize, currentNand);
if(patchSize != 0) patch = customVerString;
else
{ {
patchSize = 8; static const u16 pattern[] = u"Ve";
const u16 *patch;
u32 patchSize = 0,
currentNand = BOOTCFG_NAND;
static const u16 *const verStringNandEmu[] = { u" Emu", u"Emu2", u"Emu3", u"Emu4" }; u16 customVerString[19];
patch = currentNand == 0 ? u" Sys" : verStringNandEmu[BOOTCFG_EMUINDEX]; loadCustomVerString(customVerString, &patchSize, currentNand);
if(patchSize != 0) patch = customVerString;
else
{
patchSize = 8;
static const u16 *const verStringNandEmu[] = { u" Emu", u"Emu2", u"Emu3", u"Emu4" };
patch = currentNand == 0 ? u" Sys" : verStringNandEmu[BOOTCFG_EMUINDEX];
}
//Patch Ver. string
if(!patchMemory(code, textSize,
pattern,
sizeof(pattern) - 2, 0,
patch,
patchSize, 1
)) goto error;
} }
//Patch Ver. string // Allow date picker to select year up to 2099, not just 2050.
if(!patchMemory(code, textSize, // NNID user's year-of-birth seems to have a similar restriction,
pattern, // I'm not removing that as long as any NNID stuff is still active.
sizeof(pattern) - 2, 0,
patch, // Patch date picker check on entry (date load):
patchSize, 1 // Look for:
)) goto error; // 32 00 5x E3 CMP Rx, #0x32
// ...
// 32 x0 A0 C3 MOVGT Rx, #0x32
u32 *off = (u32 *)code;
for (; (u8 *)off < code + textSize && ((off[0] & 0xFFF0FFFF) != 0xE3500032 || (off[2] & 0xFFFF0FFF) != 0xC3A00032); off++)
{
if (((off[0] >> 16) & 0xF) != ((off[2] >> 12) & 0xF)) // ensure same register used
continue;
}
if ((u8 *)off >= code + textSize) goto error;
off[0] = (off[0] & ~0xFF) | 99;
off[2] = (off[2] & ~0xFF) | 99;
// Patch date picker actions:
// Look for:
// 01 00 80 E2 ADD R0, R0, #1
// 32 00 50 E3 CMP R0, #0x32
off = (u32 *)code;
for (; (u8 *)off < code + textSize && (off[0] != 0xE2800001 || off[1] != 0xE3500032); off++);
if ((u8 *)off >= code + textSize) goto error;
off[1] = (off[1] & ~0xFF) | 99; // patch increment wrap-around compare instruction
off[9] = (off[9] & ~0xFF) | 99; // patch decrement wrap-around conditional move instruction
} }
else if(progId == 0x0004013000008002LL) //NS else if(progId == 0x0004013000008002LL) //NS