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https://github.com/wiidev/usbloadergx.git
synced 2024-11-04 18:45:05 +01:00
added patch for launch titles. now every game should be able to return
to this channel on exit.
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@ -2,8 +2,8 @@
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<app version="1">
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<name> USB Loader GX</name>
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<coder>USB Loader GX Team</coder>
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<version>1.0 r926</version>
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<release_date>201004110250</release_date>
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<version>1.0 r927</version>
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<release_date>201004110532</release_date>
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<short_description>Loads games from USB-devices</short_description>
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<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.
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The interactive GUI is completely controllable with WiiMote, Classic Controller or GC Controller.
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@ -418,11 +418,19 @@ void vidolpatcher(void *addr, u32 len)
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//giantpune's magic super patch to return to channels
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bool PatchReturnTo(void *Address, int Size, u32 id) {
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if( !id )return 0;
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//new __OSLoadMenu() (SM2.0 and higher)
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u8 SearchPattern[ 12 ] = { 0x38, 0x80, 0x00, 0x02, 0x38, 0x60, 0x00, 0x01, 0x38, 0xa0, 0x00, 0x00 };
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//old _OSLoadMenu() (used in launch games)
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u8 SearchPatternB[ 12 ] = { 0x38, 0xC0, 0x00, 0x02, 0x38, 0xA0, 0x00, 0x01, 0x38, 0xE0, 0x00, 0x00 };
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//identifier for the safe place
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u8 SearchPattern2[ 12 ] = { 0x4D, 0x65, 0x74, 0x72, 0x6F, 0x77, 0x65, 0x72, 0x6B, 0x73, 0x20, 0x54 };
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int found = 0;
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int patched = 0;
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u8 oldSDK = 0;
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u32 ad[ 4 ] = { 0, 0, 0, 0 };
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void *Addr = Address;
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@ -447,6 +455,29 @@ bool PatchReturnTo(void *Address, int Size, u32 id) {
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}
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Addr += 4;
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}
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//check for the older-ass version of the SDK
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if( found < 3 && ad[ 3 ] )
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{
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Addr = Address;
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ad[ 0 ] = 0; ad[ 1 ] = 0;
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ad[ 2 ] = 0;
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found = 0;
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oldSDK = 1;
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while (Addr <= Addr_end - 12 ) {
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//find __OSLaunchMenu() and remember some addresses in it
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if ( memcmp( Addr, SearchPatternB, 12 )==0 ) {
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ad[ found++ ] = (u32)Addr;
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}
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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
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{
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if( !ad[ 1 ] ) ad[ found++ ] = (u32)Addr;
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else if( !ad[ 2 ] ) ad[ found++ ] = (u32)Addr;
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if( found >= 3 )break;
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}
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Addr += 4;
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}
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}
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//if the function is found and if it is not too far into the main.dol
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if( found == 3 && ( ad[ 2 ] - ad[ 3 ] < 0x1000001 ) && ad[ 3 ] )
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@ -458,10 +489,17 @@ bool PatchReturnTo(void *Address, int Size, u32 id) {
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u8 jump[ 20 ] = { 0x3C, 0x60, 0x00, 0x01, 0x60, 0x63, 0x00, 0x01,
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0x3C, 0x80, 0x4A, 0x4F, 0x60, 0x84, 0x44, 0x49,
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0x4E, 0x80, 0x00, 0x20 };
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if( oldSDK )
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{
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jump[ 1 ] = 0xA0; //3CA00001 60A50001
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jump[ 5 ] = 0xA5; //3CC04A4F 60C64449
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jump[ 9 ] = 0xC0;
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jump[ 13 ] = 0xC6;
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}
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//patch the thing to use the new TID
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jump[ 10 ] = (u8)( id>>24 );
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jump[ 11 ] = (u8)( id>>16 );
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jump[ 14 ] = (u8)( id>>8 );
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jump[ 10 ] = (u8)( id >> 24 );
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jump[ 11 ] = (u8)( id >> 16 );
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jump[ 14 ] = (u8)( id >> 8 );
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jump[ 15 ] = (u8)id;
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void* addr = (u32*)ad[ 3 ];
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