#167827 - Nitto - Mon Mar 30, 2009 7:28 am
Using devkitPro,C/C++ or ASM is there a way that I could boot an ROM or NDS if I could access it off a drive like an sd card (I mean programing wise)?
Thanks in Advance, Nitto
PostScript: This is my first post.
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#167828 - Dwedit - Mon Mar 30, 2009 7:46 am
You can always load files and jump to them, provided you follow the file format.
If you are intending to run commercial games, those requires lots of complicated hacking.
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#167835 - Nitto - Mon Mar 30, 2009 4:03 pm
| Dwedit wrote: |
You can always load files and jump to them, provided you follow the file format.
If you are intending to run commercial games, those requires lots of complicated hacking. |
Yea I was reading up bit and found that I get a return address and then jump to the others and then it comes back to the address I specified. I also noticed that getting all the files corrupts the stack.
So:
1. How would I go about with commercial roms? Should I check passme source?
2. How could I load all the files into an array without corrupting the stack, and to "Hack" for commercial roms were could I look?
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#167837 - zzo38computer - Mon Mar 30, 2009 5:21 pm
If you want to run from the DS card you can check the FWNITRO source-codes.
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#167842 - Nitto - Mon Mar 30, 2009 11:42 pm
| zzo38computer wrote: |
| If you want to run from the DS card you can check the FWNITRO source-codes. |
Is there a way I could load it of an SD card? Ie: No flashing my firmware just using some code to boot of a chip?
And I am getting mix reviews here saying it flashes the firmware.
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#167843 - Nitto - Tue Mar 31, 2009 1:55 am
Could I read a file lets say:
| Code: |
char* readWholeFile(const char * filename)
{
//Open file
FILE* dl = NULL;
dl = fopen(filename, "r");
//Find file size
fseek(dl , 0 , SEEK_END);
int dlTotalBytes = ftell(dl);
rewind(dl);
//allocate memory to contain the whole file:
char* fileBuffer = (char*)malloc(dlTotalBytes);
int result = fread(fileBuffer,1,dlTotalBytes,dl);
//Something went wrong? Free the memory.
if (result != dlTotalBytes)
{
free(fileBuffer);
fileBuffer = NULL;
}
//Close and return
fclose(dl);
return fileBuffer;
}
|
Thus reading it off the sd card, but My question is how could I link this to a custom built card based of pass-me? Ie: A chip, then sd input?
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#168066 - silent_code - Wed Apr 08, 2009 11:18 pm
Please read the forum rules, where you will see that talking about software piracy (running ROMs of commercial games) is a thing we don't do here.
Thanks.
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#168107 - Nitto - Fri Apr 10, 2009 8:33 am
| silent_code wrote: |
Please read the forum rules, where you will see that talking about software piracy (running ROMs of commercial games) is a thing we don't do here.
Thanks. |
I am trying to boot home brew o.o - like Nitro
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#168108 - Mighty Max - Fri Apr 10, 2009 8:40 am
| Nitto wrote: |
I am trying to boot home brew o.o - like Nitro |
| Nitto wrote: |
So:
1. How would I go about with commercial roms? Should I check passme source? |
So that question is done?
For the other cases, there are some threads on that already. Do a search and be presented with several approaches.
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#168109 - Nitto - Fri Apr 10, 2009 8:44 am
| Mighty Max wrote: |
| Nitto wrote: |
I am trying to boot home brew o.o - like Nitro |
| Nitto wrote: |
So:
1. How would I go about with commercial roms? Should I check passme source? |
So that question is done?
For the other cases, there are some threads on that already. Do a search and be presented with several approaches. |
I know I will have to load the file, so I wrote a simplistic approach to micro sd. I then will load this file, that will then load some other file (.nds) then load it into memory and execute.
And I stopped with commercial roms due to the fact that there will be protection.
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#168114 - spinal_cord - Fri Apr 10, 2009 12:55 pm
Chishm has made a homebrew loader, the source is here in the forum somewhere, maybe that can help you?
[edit] there is a version of his loader on his tunavids page[/edit]
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#168128 - Nitto - Fri Apr 10, 2009 5:35 pm
| spinal_cord wrote: |
Chishm has made a homebrew loader, the source is here in the forum somewhere, maybe that can help you?
[edit] there is a version of his loader on his tunavids page[/edit] |
Well I had the loading done: http://forum.gbadev.org/viewtopic.php?p=168106#168106
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