diff options
Diffstat (limited to 'src/mame/igs/pgmcrypt.cpp')
| -rw-r--r-- | src/mame/igs/pgmcrypt.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/mame/igs/pgmcrypt.cpp b/src/mame/igs/pgmcrypt.cpp index a1f05812ba0..2a38ac59539 100644 --- a/src/mame/igs/pgmcrypt.cpp +++ b/src/mame/igs/pgmcrypt.cpp @@ -2057,3 +2057,93 @@ void magtree_decrypt(running_machine &machine) src[i] = x; } } + +// V015US +static const uint8_t texashld_tab[0x100] = { + 0x49, 0x47, 0x53, 0x30, 0x32, 0x32, 0x38, 0x52, 0x44, 0x34, 0x30, 0x35, 0x31, 0x30, 0x32, 0x36, // IGS0228RD4051026 + 0x4b, 0x26, 0x03, 0xb7, 0x63, 0x4d, 0xa2, 0x94, 0xb6, 0xa1, 0xf7, 0xe7, 0xe4, 0x48, 0xa3, 0x24, + 0xd9, 0x86, 0xd7, 0xb0, 0x61, 0xb9, 0x7a, 0xff, 0xef, 0x94, 0x9d, 0xf2, 0xaa, 0x9b, 0x21, 0x70, + 0xb9, 0xdf, 0xa7, 0x43, 0xd0, 0xfc, 0xb8, 0x34, 0xfb, 0x50, 0x36, 0x6a, 0xaa, 0x7d, 0x03, 0x00, + 0xfe, 0x21, 0xef, 0xe6, 0x53, 0xd5, 0xe7, 0xfa, 0x0e, 0x64, 0x5d, 0x67, 0xa8, 0x4d, 0xf2, 0x3d, + 0xfb, 0x7b, 0x6b, 0x51, 0xcc, 0x43, 0xd2, 0x58, 0x9a, 0x9f, 0xec, 0x3f, 0xa6, 0xa9, 0xdb, 0xcd, + 0x43, 0x5b, 0x14, 0x7c, 0x60, 0x85, 0x84, 0x94, 0x53, 0x10, 0xfe, 0x89, 0xe8, 0x71, 0xe8, 0x97, + 0xaa, 0x70, 0x27, 0x9c, 0x71, 0x1b, 0x47, 0x35, 0x2c, 0x05, 0xef, 0x1c, 0xf0, 0xc4, 0x85, 0xc2, + 0x42, 0xaa, 0x1d, 0x28, 0xa1, 0xc3, 0xa7, 0x03, 0x57, 0x0f, 0x5a, 0x10, 0x82, 0x01, 0x5b, 0xb5, + 0x5d, 0x38, 0xb2, 0xd9, 0xd4, 0x7c, 0x6f, 0x05, 0x48, 0xfc, 0x19, 0xbb, 0x9f, 0xc6, 0x57, 0x17, + 0x90, 0x87, 0xe2, 0xa4, 0x2d, 0x85, 0xaa, 0x81, 0xb2, 0xda, 0x47, 0xb5, 0x8d, 0xf3, 0xa3, 0xcf, + 0xad, 0x49, 0xe6, 0xc2, 0x0f, 0x5e, 0xa2, 0xff, 0x87, 0xfa, 0x40, 0xd4, 0xcc, 0xa7, 0xab, 0x04, + 0xc7, 0x6a, 0x3b, 0xa8, 0x1d, 0xc4, 0xe4, 0x45, 0xfb, 0xea, 0x9f, 0x2f, 0x21, 0x40, 0x18, 0x1e, + 0x32, 0x1c, 0x9a, 0x0e, 0x3a, 0xb8, 0x39, 0x5b, 0x80, 0x78, 0x3e, 0x1d, 0x8f, 0x5e, 0xd7, 0xc2, + 0x7f, 0xcb, 0x00, 0xeb, 0x89, 0x78, 0xac, 0x88, 0xcb, 0xb5, 0x39, 0x36, 0x57, 0xe0, 0x13, 0xd9, + 0x83, 0x28, 0xa6, 0x75, 0x6d, 0x84, 0x8a, 0x52, 0xcc, 0xee, 0xea, 0x50, 0xff, 0xe5, 0x35, 0x88 +}; + +void texashld_decrypt(running_machine &machine) +{ + memory_region *const region = machine.root_device().memregion("user1"); + auto const src = util::little_endian_cast<u16>(reinterpret_cast<u32 *>(region->base())); + auto const rom_size = region->bytes(); + + for (int i = 0; i < rom_size / 2; i++) + { + uint16_t x = src[i]; + + IGS27_CRYPT1 // $02d00 + IGS27_CRYPT2 + IGS27_CRYPT3 + IGS27_CRYPT4 // $02ce0 + IGS27_CRYPT5 + IGS27_CRYPT6_ALT + IGS27_CRYPT7 + IGS27_CRYPT8 // $01300 + + x ^= texashld_tab[(i >> 1) & 0xff] << 8; + + src[i] = x; + } +} + +// V102US 2007 +static const uint8_t crzybug2_tab[0x100] = { + 0x49, 0x47, 0x53, 0x30, 0x33, 0x30, 0x34, 0x52, 0x44, 0x34, 0x30, 0x37, 0x30, 0x36, 0x31, 0x31, // IGS0304RD4070611 + 0x72, 0xba, 0x6a, 0x0e, 0xaf, 0x03, 0x46, 0x16, 0x8d, 0xd9, 0xd8, 0xb9, 0xe1, 0x8f, 0x35, 0xe5, + 0xea, 0x2b, 0x3f, 0x5c, 0xf0, 0xb6, 0x69, 0x9e, 0x1e, 0xc3, 0xad, 0x17, 0x9c, 0x3e, 0xca, 0x85, + 0xf0, 0x77, 0xc3, 0xad, 0x96, 0x6f, 0x94, 0x3e, 0xdf, 0x62, 0x37, 0x05, 0x07, 0x95, 0xd8, 0x53, + 0x9a, 0x61, 0x54, 0xac, 0x09, 0x80, 0xf8, 0xb1, 0x87, 0x97, 0x77, 0x4f, 0x2a, 0x04, 0x2c, 0x29, + 0x3f, 0xeb, 0x92, 0x44, 0xee, 0x7b, 0x01, 0xf2, 0x0f, 0x86, 0xab, 0x01, 0x4b, 0x41, 0xd6, 0x24, + 0x77, 0x58, 0x5c, 0xa1, 0x2d, 0x35, 0x60, 0x3c, 0xad, 0x92, 0x52, 0x63, 0xf2, 0x3d, 0x26, 0x9c, + 0x18, 0x2b, 0xd0, 0x2c, 0xee, 0xc1, 0x03, 0x0a, 0xd7, 0x5e, 0x2b, 0x03, 0xe6, 0x2c, 0xa9, 0x2e, + 0x3a, 0x28, 0x4e, 0x93, 0x96, 0x70, 0x1a, 0x17, 0x45, 0xcd, 0x36, 0xaa, 0x2d, 0x80, 0x2f, 0xb5, + 0x32, 0x52, 0x75, 0xbe, 0xce, 0xd6, 0x13, 0x5e, 0xee, 0x01, 0xb1, 0x65, 0x0f, 0xee, 0xc7, 0x4b, + 0x99, 0xea, 0x23, 0xda, 0x7c, 0xc7, 0x9e, 0x1a, 0x09, 0x5f, 0x1b, 0x7d, 0x12, 0x66, 0xc0, 0x4b, + 0x46, 0x75, 0x78, 0x51, 0xc6, 0x54, 0xa9, 0xc6, 0x0c, 0x88, 0x33, 0x7d, 0xfe, 0x1e, 0xa9, 0x51, + 0x4e, 0xb6, 0xd3, 0xce, 0x15, 0xd2, 0x64, 0x1d, 0xb0, 0x61, 0xf8, 0x32, 0xda, 0x87, 0x51, 0x38, + 0x0a, 0xaf, 0xd3, 0x3c, 0x0f, 0xd3, 0x3d, 0x1a, 0xea, 0x0b, 0xaa, 0xa5, 0xec, 0x54, 0xc7, 0x1a, + 0x11, 0xa3, 0x56, 0xc7, 0x9b, 0x2a, 0xe4, 0xf8, 0xf2, 0xea, 0xc6, 0x22, 0xbc, 0x7a, 0x5a, 0x53, + 0x38, 0x16, 0x7c, 0xd9, 0xe0, 0xeb, 0x47, 0x32, 0x3f, 0xa1, 0x0d, 0x34, 0x10, 0x2a, 0x99, 0x7d +}; + +void crzybug2_decrypt(running_machine &machine) +{ + memory_region *const region = machine.root_device().memregion("user1"); + auto const src = util::little_endian_cast<u16>(reinterpret_cast<u32 *>(region->base())); + auto const rom_size = region->bytes(); + + for (int i = 0; i < rom_size / 2; i++) + { + uint16_t x = src[i]; + + IGS27_CRYPT1_ALT // $1900 + IGS27_CRYPT2_ALT // $1b230 + IGS27_CRYPT3 + IGS27_CRYPT4 + IGS27_CRYPT5 + IGS27_CRYPT6_ALT + IGS27_CRYPT7 + IGS27_CRYPT8 + + x ^= crzybug2_tab[(i >> 1) & 0xff] << 8; + + src[i] = x; + } +} |
