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Diffstat (limited to 'src/mame/igs/pgmcrypt.cpp')
-rw-r--r--src/mame/igs/pgmcrypt.cpp90
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;
+ }
+}