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Determine ROM size for GBA ROM dump

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This commit is contained in:
RocketRobz 2018-10-07 10:12:34 -06:00
parent 3aa9c24992
commit 933d3b6e28
1 changed files with 11 additions and 3 deletions
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14
arm9/source/driveMenu.cpp
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@ -94,12 +94,20 @@ void gbaCartDump(void) {
snprintf(destPath, sizeof(destPath), "fat:/gm9i/out/%s_%s_%s.gba", gbaHeaderGameTitle, gbaHeaderGameCode, gbaHeaderMakerCode);
consoleClear();
printf("Dumping...\n");
printf("This may take a while.\n");
printf("\n");
printf("Do not remove the GBA cart.\n");
// Determine ROM size
u32 romSize = 0x02000000;
for (u32 i = 0x09FE0000; i > 0x08000000; i -= 0x20000) {
if (*(u32*)(i) == 0xFFFE0000) {
romSize -= 0x20000;
} else {
break;
}
}
// Dump!
remove(destPath);
FILE* destinationFile = fopen(destPath, "wb");
fwrite((void*)0x08000000, 1, 0x400000, destinationFile);
fwrite((void*)0x08000000, 1, romSize, destinationFile);
fclose(destinationFile);
break;
}