splash5
|
9d0ac8c27d
|
Fix wrong first/last bank crc32
|
2023-02-26 15:58:56 +08:00 |
|
sanni
|
9bfa9c3418
|
Fix some duplicate first bank/last bank CRCs
|
2023-02-13 11:32:46 +01:00 |
|
sanni
|
b453bf85a8
|
Fix wrong first/last bank CRC32 for Zelda 1
|
2023-01-28 16:27:33 +01:00 |
|
splash5
|
b4021f5594
|
Fix wrong first/last bank crc32
|
2022-12-25 18:46:02 +08:00 |
|
splash5
|
1d3eecfc14
|
Fix wrong first bank crc32
|
2022-12-14 12:31:31 +08:00 |
|
sanni
|
132b2e7031
|
Only wanted to change MMC3, not the other MMCs (yet)
````
// Convert iNES to useful info (thx to fceux)
mapper = (romFile[6] >> 4);
mapper |= (romFile[7] & 0xF0);
mapper |= ((romFile[8] & 0x0F) << 8);
// PRG size
if ((romFile[9] & 0x0F) != 0x0F) {
// simple notation
prgsize = (romFile[4] | ((romFile[9] & 0x0F) << 8)); //*16
}
else {
// exponent-multiplier notation
prgsize = (((1 << (romFile[4] >> 2)) * ((romFile[4] & 0x3) * 2 + 1)) >> 14); //*16
}
if (prgsize != 0)
prgsize = (int(log(prgsize) / log(2)));
prgsize = (int_pow(2, prgsize)) * 16;
byte[] first512 = new byte[512];
// MMC1
//if(mapper == 1){}
// MMC2
//else if(mapper == 9){}
// MMC3
if(mapper == 4){
int startoffset = (prgsize/8 - 1) *8 *1024;
// Get crc32 of first 512 bytes
for(int l = 0; l < 512; l++){
first512[l] = romFile2[startoffset + l];
}
}
// MMC4
//else if(mapper == 10){}
// MMC5
//else if(mapper == 5){}
else {
// Get crc32 of first 512 bytes
for(int l = 0; l < 512; l++){
first512[l] = romFile2[l];
}
}
CRC32 crc2 = new CRC32();
crc2.update(first512);
checksum512 = String.format("%08X", crc2.getValue());
````
|
2022-10-05 08:46:35 +02:00 |
|
sanni
|
f52df29266
|
Add auto mapper detecting for MMC3 carts
"E000-FFFF is always fixed to the last bank of ROM." Source: http://kevtris.org/mappers/mmc3/index.html
Therefore calculate CRC32 of the first 512 bytes of the last bank of the PRG ROM instead of the first bank.
Database creation code example:
````
// Convert iNES to useful info (thx to fceux)
mapper = (romFile[6] >> 4);
mapper |= (romFile[7] & 0xF0);
mapper |= ((romFile[8] & 0x0F) << 8);
// PRG size
if ((romFile[9] & 0x0F) != 0x0F) {
// simple notation
prgsize = (romFile[4] | ((romFile[9] & 0x0F) << 8));
}
else {
// exponent-multiplier notation
prgsize = (((1 << (romFile[4] >> 2)) * ((romFile[4] & 0x3) * 2 + 1)) >> 14);
}
if (prgsize != 0)
prgsize = (int(log(prgsize) / log(2)));
prgsize = (int_pow(2, prgsize)) * 16;
byte[] first512 = new byte[512];
// MMC1
if(mapper == 1){
}
// MMC2
if(mapper == 9){
}
// MMC3
if(mapper == 4){
// MMC3 has 8KB banks
int startoffset = (prgsize/8 - 1) *8 *1024;
// Get crc32 of first 512 bytes of last PRG bank
for(int l = 0; l < 512; l++){
first512[l] = romFile[16 + startoffset + l];
}
}
// MMC4
else if(mapper == 10){
}
// MMC5
else if(mapper == 5){
}
else {
// Get crc32 of first 512 bytes after iNES header
for(int l = 0; l < 512; l++){
first512[l] = romFile[16 + l];
}
}
````
|
2022-10-04 22:31:23 +02:00 |
|
nsx0r
|
e372bcc5e3
|
Update nes.txt
updated nes.txt to no-intro 2022-10-01
now includes ONLY physical releases, should speed up the process (from 3858 games to 3108)
|
2022-10-01 08:17:48 +02:00 |
|
nsx0r
|
e3978a86a5
|
typos... sorry!
fixed and double-checked
|
2022-07-19 16:54:14 +02:00 |
|
nsx0r
|
816428604e
|
fixed and update to no-intro 2022-07-18
previous version was all kinds of wrong
|
2022-07-19 16:34:05 +02:00 |
|
sanni
|
9d4336741e
|
Improve NES cart detection
|
2022-07-07 10:52:25 +02:00 |
|
sanni
|
f4eaca88c8
|
Add no-intro database to NES
|
2022-07-07 00:10:51 +02:00 |
|
sanni
|
8b96d250bd
|
Add MD database
|
2022-06-16 17:17:16 +02:00 |
|