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added patch for launch titles. now every game should be able to return

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to this channel on exit.
This commit is contained in:
giantpune 2010-04-11 05:49:24 +00:00
parent 1beb161406
commit 062520d0e0
2 changed files with 43 additions and 5 deletions
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4
HBC/META.XML
View File

@ -2,8 +2,8 @@
<app version="1">
<name> USB Loader GX</name>
<coder>USB Loader GX Team</coder>
<version>1.0 r926</version>
<release_date>201004110250</release_date>
<version>1.0 r927</version>
<release_date>201004110532</release_date>
<short_description>Loads games from USB-devices</short_description>
<long_description>USB Loader GX is a libwiigui based USB iso loader with a wii-like GUI. You can install games to your HDDs and boot them with shorter loading times.
The interactive GUI is completely controllable with WiiMote, Classic Controller or GC Controller.

44
source/patches/patchcode.c
View File

@ -418,11 +418,19 @@ void vidolpatcher(void *addr, u32 len)
//giantpune's magic super patch to return to channels
bool PatchReturnTo(void *Address, int Size, u32 id) {
if( !id )return 0;
//new __OSLoadMenu() (SM2.0 and higher)
u8 SearchPattern[ 12 ] = { 0x38, 0x80, 0x00, 0x02, 0x38, 0x60, 0x00, 0x01, 0x38, 0xa0, 0x00, 0x00 };
//old _OSLoadMenu() (used in launch games)
u8 SearchPatternB[ 12 ] = { 0x38, 0xC0, 0x00, 0x02, 0x38, 0xA0, 0x00, 0x01, 0x38, 0xE0, 0x00, 0x00 };
//identifier for the safe place
u8 SearchPattern2[ 12 ] = { 0x4D, 0x65, 0x74, 0x72, 0x6F, 0x77, 0x65, 0x72, 0x6B, 0x73, 0x20, 0x54 };
int found = 0;
int patched = 0;
u8 oldSDK = 0;
u32 ad[ 4 ] = { 0, 0, 0, 0 };
void *Addr = Address;
@ -447,6 +455,29 @@ bool PatchReturnTo(void *Address, int Size, u32 id) {
}
Addr += 4;
}
//check for the older-ass version of the SDK
if( found < 3 && ad[ 3 ] )
{
Addr = Address;
ad[ 0 ] = 0; ad[ 1 ] = 0;
ad[ 2 ] = 0;
found = 0;
oldSDK = 1;
while (Addr <= Addr_end - 12 ) {
//find __OSLaunchMenu() and remember some addresses in it
if ( memcmp( Addr, SearchPatternB, 12 )==0 ) {
ad[ found++ ] = (u32)Addr;
}
else if ( ad[ 0 ] && memcmp( Addr, SearchPatternB, 8 ) == 0 ) //after the first match is found, only search the first 8 bytes for the other 2
{
if( !ad[ 1 ] ) ad[ found++ ] = (u32)Addr;
else if( !ad[ 2 ] ) ad[ found++ ] = (u32)Addr;
if( found >= 3 )break;
}
Addr += 4;
}
}
//if the function is found and if it is not too far into the main.dol
if( found == 3 && ( ad[ 2 ] - ad[ 3 ] < 0x1000001 ) && ad[ 3 ] )
@ -458,10 +489,17 @@ bool PatchReturnTo(void *Address, int Size, u32 id) {
u8 jump[ 20 ] = { 0x3C, 0x60, 0x00, 0x01, 0x60, 0x63, 0x00, 0x01,
0x3C, 0x80, 0x4A, 0x4F, 0x60, 0x84, 0x44, 0x49,
0x4E, 0x80, 0x00, 0x20 };
if( oldSDK )
{
jump[ 1 ] = 0xA0; //3CA00001 60A50001
jump[ 5 ] = 0xA5; //3CC04A4F 60C64449
jump[ 9 ] = 0xC0;
jump[ 13 ] = 0xC6;
}
//patch the thing to use the new TID
jump[ 10 ] = (u8)( id>>24 );
jump[ 11 ] = (u8)( id>>16 );
jump[ 14 ] = (u8)( id>>8 );
jump[ 10 ] = (u8)( id >> 24 );
jump[ 11 ] = (u8)( id >> 16 );
jump[ 14 ] = (u8)( id >> 8 );
jump[ 15 ] = (u8)id;
void* addr = (u32*)ad[ 3 ];