Can't dump Alwa's Awakening - 512kb ROM

[Lo0twig]

As the title says. I can't dump the Game Alwa's Awakening. I set the correct mapper (002) but i can't choose rom size higher than 256kb.

[sanni]

In line 34 of NES.ino you find the following line that defines the mapper 2:

2, 3, 4, 0, 0, 0, 0, // uxrom     

The numbers correspond to the following settings in the same order: mapper, prglo, prghi, chrlo, chrhi, ramlo, ramhi.

Mapper is the number of the mapper. And the -lo, -hi values define the selectable range of sizes according to these arrays:

int PRG[] = {16, 32, 64, 128, 256, 512};   
int CHR[] = {0, 8, 16, 32, 64, 128, 256, 512};    
byte RAM[] = {0, 8, 16, 32};   

So in case of mapper 2 currently it allows a prg size between 128(3rd entry in the array, counting starts at zero) and 256(4th entry in the array, counting starts at zero again).

So to enable 512K as selection you need to change the line to:

2, 3, 5, 0, 0, 0, 0, // uxrom     

However it might be that this cartridge needs even more changes in the code to be dumped.

[Lo0twig]

Thanks i'll give it a try. Danke dir Sanni <3

[sanni]

Here it is mentioned that this game unlike OG NES carts starts its PRG-RAM at 0x6000 so you might have to change the base from 0x8000 to 0x6000 too.

cartreader/Cart_Reader/NES.ino

Line 2325 in 02a7b42

word base = 0x8000;

I'm not sure if these lines need to be changed too:

cartreader/Cart_Reader/NES.ino

Line 2361 in 02a7b42

for (int i = 0; i < 8; i++) { // 128K/256K

cartreader/Cart_Reader/NES.ino

Line 2362 in 02a7b42

write_prg_byte(0x8000, i);

[Lo0twig]

The Reader is giving me: CHR SIZE: 0k RAM SIZE: 0k
Can't pick it myself it is skipping through this.

[Lo0twig]

Changing the lines did not help. NT Mini Noir/ED 8 Pro -> "Unknown ROM format"

[Lo0twig]

The creators of the game will send me the ROM-file.