mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-12-23 18:31:56 +01:00
22ca798b5e
NOTE: There is a GameSettings you need to turn ON to load Alternate DOLs. The alternate DOL has to be called 6 IDs .dol for example RHDP8P.dol and has to be in the root of the SD. Giantpune will add custom path support i dont have time for it.
127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
#include <ogcsys.h>
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#include <stdio.h>
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#include <gccore.h>
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#include <string.h>
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#include <malloc.h>
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#include "fatmounter.h"
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/** Alternate dolloader made by WiiPower modified by dimok **/
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bool Load_Dol(void **buffer, int* dollen, char * filepath)
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{
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int ret;
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FILE* file;
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void* dol_buffer;
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char fullpath[200];
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char gameidbuffer6[7];
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memset(gameidbuffer6, 0, 7);
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memcpy(gameidbuffer6, (char*)0x80000000, 6);
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snprintf(fullpath, 200, "%s%s.dol", filepath, gameidbuffer6);
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SDCard_Init();
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USBDevice_Init();
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file = fopen(fullpath, "rb");
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if(file == NULL)
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{
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fclose(file);
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SDCard_deInit();
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USBDevice_deInit();
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return false;
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}
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int filesize;
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fseek(file, 0, SEEK_END);
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filesize = ftell(file);
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fseek(file, 0, SEEK_SET);
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dol_buffer = malloc(filesize);
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if (dol_buffer == NULL)
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{
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fclose(file);
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SDCard_deInit();
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USBDevice_deInit();
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return false;
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}
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ret = fread( dol_buffer, 1, filesize, file);
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if(ret != filesize)
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{
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free(dol_buffer);
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fclose(file);
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SDCard_deInit();
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USBDevice_deInit();
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return false;
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}
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fclose(file);
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SDCard_deInit();
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USBDevice_deInit();
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*buffer = dol_buffer;
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*dollen = filesize;
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return true;
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}
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bool Remove_001_Protection(void *Address, int Size)
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{
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u8 SearchPattern[16] = { 0x40, 0x82, 0x00, 0x0C, 0x38, 0x60, 0x00, 0x01, 0x48, 0x00, 0x02, 0x44, 0x38, 0x61, 0x00, 0x18 };
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u8 PatchData[16] = { 0x40, 0x82, 0x00, 0x04, 0x38, 0x60, 0x00, 0x01, 0x48, 0x00, 0x02, 0x44, 0x38, 0x61, 0x00, 0x18 };
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void *Addr = Address;
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void *Addr_end = Address+Size;
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while(Addr <= Addr_end-sizeof(SearchPattern))
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{
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if(memcmp(Addr, SearchPattern, sizeof(SearchPattern))==0)
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{
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memcpy(Addr,PatchData,sizeof(PatchData));
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return true;
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}
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Addr += 4;
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}
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return false;
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}
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typedef struct _dolheader {
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u32 text_pos[7];
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u32 data_pos[11];
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u32 text_start[7];
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u32 data_start[11];
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u32 text_size[7];
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u32 data_size[11];
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u32 bss_start;
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u32 bss_size;
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u32 entry_point;
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} dolheader;
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u32 load_dol_image(void *dolstart) {
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u32 i;
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dolheader *dolfile;
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if (dolstart) {
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dolfile = (dolheader *) dolstart;
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for (i = 0; i < 7; i++) {
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if ((!dolfile->text_size[i]) || (dolfile->text_start[i] < 0x100)) continue;
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VIDEO_WaitVSync();
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ICInvalidateRange ((void *) dolfile->text_start[i],dolfile->text_size[i]);
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memmove ((void *) dolfile->text_start[i],dolstart+dolfile->text_pos[i],dolfile->text_size[i]);
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}
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for(i = 0; i < 11; i++) {
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if ((!dolfile->data_size[i]) || (dolfile->data_start[i] < 0x100)) continue;
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VIDEO_WaitVSync();
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memmove ((void *) dolfile->data_start[i],dolstart+dolfile->data_pos[i],dolfile->data_size[i]);
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DCFlushRangeNoSync ((void *) dolfile->data_start[i],dolfile->data_size[i]);
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}
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/*
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memset ((void *) dolfile->bss_start, 0, dolfile->bss_size);
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DCFlushRange((void *) dolfile->bss_start, dolfile->bss_size);
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*/
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return dolfile->entry_point;
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}
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return 0;
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}
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