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md, reworked cart protection handling, added some unlicensed

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This commit is contained in:
kub 2022-04-30 14:07:58 +02:00
parent 27b26d0478
commit e1e8ca17be
6 changed files with 625 additions and 195 deletions
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17
pico/cart.c
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@ -917,15 +917,16 @@ void PicoCartUnload(void)
PicoGameLoaded = 0;
}
static unsigned int rom_crc32(void)
static unsigned int rom_crc32(int size)
{
unsigned int crc;
elprintf(EL_STATUS, "caclulating CRC32..");
if (size <= 0 || size > Pico.romsize) size = Pico.romsize;
// have to unbyteswap for calculation..
Byteswap(Pico.rom, Pico.rom, Pico.romsize);
crc = crc32(0, Pico.rom, Pico.romsize);
Byteswap(Pico.rom, Pico.rom, Pico.romsize);
Byteswap(Pico.rom, Pico.rom, size);
crc = crc32(0, Pico.rom, size);
Byteswap(Pico.rom, Pico.rom, size);
return crc;
}
@ -1116,7 +1117,7 @@ static void parse_carthw(const char *carthw_cfg, int *fill_sram,
goto bad;
if (rom_crc == 0)
rom_crc = rom_crc32();
rom_crc = rom_crc32(64*1024);
if (crc == rom_crc)
any_checks_passed = 1;
else
@ -1153,8 +1154,10 @@ static void parse_carthw(const char *carthw_cfg, int *fill_sram,
carthw_sf002_startup();
else if (strcmp(p, "sf004_mapper") == 0)
carthw_sf004_startup();
else if (strcmp(p, "prot_lk3") == 0)
carthw_prot_lk3_startup();
else if (strcmp(p, "lk3_mapper") == 0)
carthw_lk3_startup();
else if (strcmp(p, "smw64_mapper") == 0)
carthw_smw64_startup();
else {
elprintf(EL_STATUS, "carthw:%d: unsupported mapper: %s", line, p);
skip_sect = 1;