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author Ivan Vangelista <mesgnet@yahoo.it>2024-07-23 22:12:05 +0200
committer Ivan Vangelista <mesgnet@yahoo.it>2024-07-23 22:12:05 +0200
commit0103e4da7fa0f3264711bac1e4001dcb3935c65a (patch)
tree10cce2056004977b5990b8ba4660975fa53461ee /src
parent9f31d42e2ddcf7f662be888066329d0ed6108f72 (diff)
igs/igs_m027.cpp: added preliminary decryptions for jking02, luckycrs and olympic5 [IQ_132]
Diffstat (limited to 'src')
-rw-r--r--src/mame/igs/igs_m027.cpp32
-rw-r--r--src/mame/igs/pgmcrypt.cpp137
-rw-r--r--src/mame/igs/pgmcrypt.h3
-rw-r--r--src/mame/mame.lst4
4 files changed, 169 insertions, 7 deletions
diff --git a/src/mame/igs/igs_m027.cpp b/src/mame/igs/igs_m027.cpp
index ed0267bc7d9..3f6f31cb3b0 100644
--- a/src/mame/igs/igs_m027.cpp
+++ b/src/mame/igs/igs_m027.cpp
@@ -71,6 +71,9 @@ public:
void init_mgzz();
void init_mgcs3();
void init_crzybugs();
+ void init_jking02();
+ void init_luckycrs();
+ void init_olympic5();
[[maybe_unused]] void init_no_dec();
protected:
@@ -1340,6 +1343,27 @@ void igs_m027_state::init_crzybugs()
pgm_create_dummy_internal_arm_region();
}
+void igs_m027_state::init_jking02()
+{
+ jking02_decrypt(machine());
+ //qlgs_gfx_decrypt(machine());
+ pgm_create_dummy_internal_arm_region();
+}
+
+void igs_m027_state::init_luckycrs()
+{
+ luckycrs_decrypt(machine());
+ //qlgs_gfx_decrypt(machine());
+ pgm_create_dummy_internal_arm_region();
+}
+
+void igs_m027_state::init_olympic5()
+{
+ olympic5_decrypt(machine());
+ //qlgs_gfx_decrypt(machine());
+ pgm_create_dummy_internal_arm_region();
+}
+
} // anonymous namespace
@@ -1356,11 +1380,11 @@ GAME( 1999, amazonkp, amazonia, igs_mahjong, amazonia, igs_m027_state, init_ama
GAME( 1999, fruitpar, 0, igs_mahjong, sdwx, igs_m027_state, init_fruitpar, ROT0, "IGS", "Fruit Paradise (V214)", MACHINE_IS_SKELETON )
GAME( 1999, oceanpar, 0, igs_mahjong, sdwx, igs_m027_state, init_oceanpar, ROT0, "IGS", "Ocean Paradise (V105US)", MACHINE_IS_SKELETON ) // 1999 copyright in ROM
GAME( 1999, oceanpara, oceanpar, igs_mahjong, sdwx, igs_m027_state, init_oceanpar, ROT0, "IGS", "Ocean Paradise (V101US)", MACHINE_IS_SKELETON ) // 1999 copyright in ROM
-GAME( 200?, luckycrs, 0, igs_mahjong, sdwx, igs_m027_state, init_no_dec, ROT0, "IGS", "Lucky Cross (V106SA)", MACHINE_IS_SKELETON )
+GAME( 200?, luckycrs, 0, igs_mahjong, sdwx, igs_m027_state, init_luckycrs, ROT0, "IGS", "Lucky Cross (V106SA)", MACHINE_IS_SKELETON )
GAME( 2002, sdwx, 0, igs_mahjong, sdwx, igs_m027_state, init_sdwx, ROT0, "IGS", "Sheng Dan Wu Xian", MACHINE_IS_SKELETON ) // aka Christmas 5 Line? (or Amazonia King II, shares roms at least?)
-GAME( 200?, jking02, 0, igs_mahjong, sdwx, igs_m027_state, init_no_dec, ROT0, "IGS", "Jungle King 2002 (V209US)", MACHINE_IS_SKELETON )
-GAME( 200?, olympic5, 0, igs_mahjong, sdwx, igs_m027_state, init_no_dec, ROT0, "IGS", "Olympic 5 (V112US)", MACHINE_IS_SKELETON )
-GAME( 200?, olympic5a, 0, igs_mahjong, sdwx, igs_m027_state, init_no_dec, ROT0, "IGS", "Olympic 5 (V107US)", MACHINE_IS_SKELETON )
+GAME( 200?, jking02, 0, igs_mahjong, sdwx, igs_m027_state, init_jking02, ROT0, "IGS", "Jungle King 2002 (V209US)", MACHINE_IS_SKELETON )
+GAME( 2005, olympic5, 0, igs_mahjong, sdwx, igs_m027_state, init_olympic5, ROT0, "IGS", "Olympic 5 (V112US)", MACHINE_IS_SKELETON ) // IGS FOR V112US 2005 02 14
+GAME( 2003, olympic5a, olympic5, igs_mahjong, sdwx, igs_m027_state, init_olympic5, ROT0, "IGS", "Olympic 5 (V107US)", MACHINE_IS_SKELETON ) // IGS FOR V107US 2003 10 2
GAME( 2003, amazoni2, 0, igs_mahjong, sdwx, igs_m027_state, init_amazoni2, ROT0, "IGS", "Amazonia King II (V202BR)", MACHINE_IS_SKELETON )
GAME( 200?, sddz, 0, igs_mahjong, sdwx, igs_m027_state, init_sddz, ROT0, "IGS", "Super Dou Di Zhu", MACHINE_IS_SKELETON )
GAME( 2000, zhongguo, 0, igs_mahjong, sdwx, igs_m027_state, init_zhongguo, ROT0, "IGS", "Zhong Guo Chu Da D", MACHINE_IS_SKELETON )
diff --git a/src/mame/igs/pgmcrypt.cpp b/src/mame/igs/pgmcrypt.cpp
index db9e4293556..2748727e67a 100644
--- a/src/mame/igs/pgmcrypt.cpp
+++ b/src/mame/igs/pgmcrypt.cpp
@@ -5,7 +5,7 @@
the IGS027 chips are typically used with encrypted ROMs.
- Games with an External ARM Rom usually have that ROM encrypted
+ Games with an External ARM ROM usually have that ROM encrypted
otherwise (in the case of PGM) the 68k ROM ends up encrypted
instead. The encryption is controlled by a set of registers
mapped to ARM space where the table and some additional values
@@ -1957,3 +1957,138 @@ void qlgs_decrypt(running_machine &machine)
src[i] = x;
}
}
+
+static const uint8_t jking02_tab[0x100] = {
+ 0x49, 0x47, 0x53, 0x30, 0x30, 0x30, 0x34, 0x52, 0x44, 0x34, 0x30, 0x31, 0x30, 0x39, 0x32, 0x31, // IGS0004RD4010921
+ 0xa5, 0x04, 0x3d, 0x57, 0xe3, 0x8d, 0x44, 0xf3, 0x50, 0x21, 0x8a, 0xe5, 0x75, 0x22, 0x3a, 0xb3,
+ 0xd5, 0x76, 0x66, 0x07, 0x89, 0xd4, 0xb8, 0x96, 0x20, 0x4e, 0x77, 0x53, 0xb5, 0x20, 0xbd, 0xd6,
+ 0x52, 0xb8, 0xf7, 0x07, 0x85, 0x05, 0x9d, 0x0f, 0x41, 0x04, 0x33, 0x80, 0xf7, 0x89, 0x81, 0xc3,
+ 0xf5, 0x4b, 0x0e, 0xc2, 0xfe, 0x33, 0xe3, 0xd7, 0x2b, 0xe6, 0x7e, 0xf5, 0x02, 0x91, 0x14, 0x15,
+ 0xd4, 0xf4, 0x0c, 0xe4, 0x5c, 0xb2, 0xb8, 0xab, 0x95, 0xd7, 0x56, 0x7e, 0xdc, 0xaa, 0x47, 0xa9,
+ 0x47, 0xb6, 0x8e, 0x57, 0x44, 0x13, 0x8c, 0x84, 0x76, 0xfa, 0xfa, 0x26, 0xcc, 0x89, 0x27, 0x97,
+ 0xe3, 0xd2, 0x74, 0x46, 0x9f, 0x2b, 0x0d, 0x9f, 0x04, 0xb1, 0xe9, 0x37, 0x5a, 0x1e, 0x05, 0x3c,
+ 0x82, 0xce, 0xdc, 0x1d, 0x92, 0x0c, 0x2a, 0x75, 0xb8, 0xa1, 0xe3, 0x3e, 0x4d, 0x9f, 0x6e, 0x33,
+ 0x38, 0x6a, 0x26, 0x85, 0x86, 0x08, 0x13, 0xc3, 0x47, 0xab, 0xe5, 0x04, 0xab, 0x7d, 0x32, 0x56,
+ 0x5e, 0xab, 0xf1, 0x6b, 0x21, 0xb4, 0x37, 0x82, 0xa9, 0xf4, 0x30, 0x94, 0xbc, 0x6c, 0x61, 0xc1,
+ 0x8a, 0xd3, 0x1c, 0xfa, 0x49, 0xe3, 0x44, 0xef, 0x15, 0xdd, 0x42, 0x3b, 0x07, 0x5e, 0x48, 0xce,
+ 0x94, 0x66, 0xc5, 0x9b, 0x27, 0xa6, 0x29, 0x84, 0x02, 0x0a, 0xdb, 0x82, 0x52, 0x87, 0x77, 0x19,
+ 0x91, 0x26, 0x4c, 0xfb, 0x21, 0x51, 0x16, 0xfb, 0x26, 0x5e, 0xf8, 0x35, 0xa5, 0x5a, 0xbd, 0x7c,
+ 0xda, 0x17, 0x50, 0x04, 0xde, 0x78, 0x79, 0x51, 0x7a, 0xfc, 0xda, 0x5f, 0x46, 0x89, 0x29, 0x13,
+ 0x06, 0x7b, 0xaf, 0xe2, 0x46, 0xed, 0x02, 0xc0, 0x33, 0x46, 0xff, 0x4b, 0xbd, 0x08, 0x0a, 0x38
+};
+
+void jking02_decrypt(running_machine &machine)
+{
+ auto const src = reinterpret_cast<u16 *>(machine.root_device().memregion("user1")->base());
+
+ int const rom_size = 0x80000;
+
+ for (int i = 0; i < rom_size / 2; i++)
+ {
+ uint16_t x = src[i];
+
+ // probably needs work...
+ IGS27_CRYPT1
+ IGS27_CRYPT2_ALT
+ // IGS27_CRYPT3
+ IGS27_CRYPT4
+ IGS27_CRYPT5
+ IGS27_CRYPT6_ALT
+ IGS27_CRYPT7
+ IGS27_CRYPT8
+
+ x ^= jking02_tab[(i>> 1) & 0xff] << 8;
+
+ src[i] = x;
+ }
+}
+
+static const uint8_t luckycrs_tab[0x100] = {
+ 0x4b, 0x99, 0xa3, 0xa6, 0x69, 0xad, 0xb2, 0x1e, 0x42, 0x9a, 0x02, 0x91, 0x04, 0x90, 0x64, 0xcf,
+ 0x68, 0xe0, 0xa3, 0x8e, 0x1b, 0x53, 0x8d, 0xe6, 0x6f, 0xcd, 0x40, 0x09, 0x42, 0x23, 0xb7, 0x47,
+ 0x2f, 0x39, 0x95, 0x41, 0xf4, 0x60, 0x30, 0x6d, 0x23, 0xee, 0xe1, 0xcb, 0x0d, 0x1f, 0x8b, 0xe5,
+ 0xec, 0x2c, 0x69, 0x0d, 0x50, 0xaa, 0x1d, 0xd2, 0xcc, 0x25, 0xf7, 0xc4, 0xe0, 0xfd, 0x82, 0x6a,
+ 0x2a, 0x80, 0x55, 0x81, 0xc9, 0x48, 0x18, 0x76, 0x12, 0xd7, 0xd5, 0x26, 0x77, 0x72, 0x81, 0xd4,
+ 0xb3, 0x3b, 0xca, 0x6b, 0x3b, 0x92, 0x23, 0xf6, 0xe1, 0xad, 0x0e, 0x5d, 0xcb, 0x76, 0xa9, 0x62,
+ 0x94, 0xa5, 0x7c, 0xdc, 0xc0, 0x1e, 0x81, 0x32, 0x65, 0x8d, 0x75, 0x1b, 0x18, 0x3f, 0x5e, 0x94,
+ 0x16, 0x44, 0x5d, 0x21, 0xb4, 0xc3, 0xb6, 0x49, 0x08, 0x9d, 0x1d, 0x4c, 0xd9, 0x46, 0x43, 0x27,
+ 0xc5, 0xe0, 0xa1, 0xcb, 0xb1, 0x99, 0x84, 0x99, 0x76, 0x46, 0x5a, 0x21, 0xc9, 0x40, 0x3c, 0x1c,
+ 0x6b, 0x7f, 0xbb, 0xa7, 0x93, 0xf6, 0xef, 0xc2, 0x99, 0x2e, 0xbe, 0x09, 0xe3, 0x25, 0x69, 0xb1,
+ 0x15, 0x69, 0x5e, 0xc6, 0x74, 0x71, 0x39, 0xa3, 0x9b, 0x3c, 0x1b, 0xb2, 0x63, 0x2d, 0x30, 0x65,
+ 0x0c, 0x25, 0x7c, 0x75, 0xb0, 0xe1, 0xe5, 0x5a, 0xea, 0x97, 0x86, 0x0b, 0xc2, 0xcc, 0x33, 0xf8,
+ 0xdc, 0x79, 0x48, 0x44, 0xe1, 0x5e, 0xb7, 0x47, 0x2e, 0xa6, 0x51, 0x44, 0xbc, 0xbc, 0x54, 0x67,
+ 0x50, 0x6d, 0x36, 0x03, 0xe3, 0x3f, 0xb1, 0x09, 0x54, 0x10, 0x10, 0xcc, 0x4c, 0xf3, 0xb8, 0xf3,
+ 0x72, 0x47, 0xf9, 0xbf, 0xd1, 0x19, 0x17, 0x7f, 0x86, 0xbc, 0x94, 0x50, 0xae, 0xa7, 0xc0, 0x1a,
+ 0x8e, 0x8f, 0x84, 0xc8, 0x05, 0xc5, 0x6b, 0xc7, 0x2f, 0xd2, 0xf1, 0xc2, 0x5b, 0x50, 0x11, 0x9b
+};
+
+void luckycrs_decrypt(running_machine &machine)
+{
+ auto const src = reinterpret_cast<u16 *>(machine.root_device().memregion("user1")->base());
+
+ int const rom_size = 0x80000;
+
+ for (int i = 0; i < rom_size / 2; i++)
+ {
+ uint16_t x = src[i];
+
+ // fairly high confidence in conditional xors with comments
+ IGS27_CRYPT1_ALT // 3900
+ IGS27_CRYPT2 // 8bd0
+ IGS27_CRYPT3 // 3a20
+ IGS27_CRYPT4_ALT // 8db0
+ IGS27_CRYPT5_ALT // 140d0
+ IGS27_CRYPT6_ALT
+ IGS27_CRYPT7
+ IGS27_CRYPT8_ALT // 3a40
+
+ x ^= luckycrs_tab[(i>> 1) & 0xff] << 8;
+
+ src[i] = x;
+ }
+}
+
+static const uint8_t olympic5_tab[0x100] = {
+ 0x49, 0x47, 0x53, 0x30, 0x30, 0x34, 0x34, 0x52, 0x44, 0x34, 0x30, 0x32, 0x30, 0x35, 0x33, 0x31, // IGS0044RD4020531
+ 0xb6, 0x32, 0xe0, 0xf9, 0x95, 0x3c, 0xa7, 0x99, 0xd9, 0x14, 0xf0, 0x81, 0x05, 0xd5, 0xc4, 0xe8,
+ 0x64, 0x59, 0x78, 0x83, 0xe5, 0xca, 0xaa, 0xaf, 0x37, 0x66, 0x80, 0xe1, 0x20, 0x92, 0x1d, 0x50,
+ 0x23, 0x22, 0x64, 0xe1, 0x53, 0xe8, 0xf1, 0x53, 0x71, 0x7b, 0x54, 0xab, 0x4d, 0x49, 0x90, 0xe2,
+ 0x5b, 0xdf, 0xd3, 0xcd, 0x93, 0x78, 0x78, 0x4e, 0x8f, 0xc5, 0x3b, 0xb9, 0xe0, 0xfc, 0xbb, 0x89,
+ 0xb1, 0x23, 0x35, 0x44, 0x9f, 0x9e, 0x7f, 0xac, 0xd7, 0xf8, 0x44, 0x27, 0x72, 0xee, 0x7e, 0x71,
+ 0x0d, 0xc2, 0x39, 0x80, 0xad, 0xbe, 0x86, 0xb7, 0xd2, 0x06, 0xbd, 0x50, 0xd9, 0xa3, 0xf8, 0x03,
+ 0x97, 0xcd, 0xcd, 0xfc, 0x33, 0x79, 0x4b, 0xfc, 0x44, 0x23, 0x37, 0xcd, 0x2c, 0xdd, 0x88, 0xec,
+ 0xb4, 0x99, 0x20, 0x72, 0xe9, 0xb3, 0xcd, 0x44, 0x36, 0xc2, 0x80, 0x7c, 0xc3, 0xa0, 0xcc, 0x16,
+ 0x0d, 0xb8, 0xa2, 0xdf, 0xc6, 0x8f, 0x4b, 0x9b, 0xef, 0x95, 0xa7, 0x76, 0x34, 0x2e, 0xa4, 0xad,
+ 0x88, 0xfc, 0x01, 0x7d, 0x01, 0x70, 0x45, 0x4c, 0xf6, 0x91, 0xfa, 0x16, 0x56, 0x0b, 0x2f, 0x1b,
+ 0x4c, 0x7a, 0x2d, 0xc7, 0x11, 0xf9, 0x79, 0xe1, 0x11, 0xe6, 0x0a, 0xf8, 0x41, 0xf8, 0xcc, 0x0b,
+ 0xc0, 0x85, 0x54, 0x77, 0xac, 0x0c, 0xe6, 0x27, 0x47, 0x0a, 0xa5, 0xf6, 0x4b, 0xfb, 0x19, 0x68,
+ 0x8b, 0xae, 0xe6, 0x8a, 0xcb, 0xce, 0xcb, 0x27, 0xe0, 0xae, 0xd9, 0x2c, 0x0c, 0x54, 0xf6, 0x5e,
+ 0x94, 0xc9, 0x91, 0x3a, 0xa3, 0xa0, 0xa7, 0x2c, 0x63, 0xc5, 0xf7, 0xf5, 0x59, 0x88, 0x81, 0x56,
+ 0x02, 0xea, 0x45, 0x02, 0xac, 0x27, 0x3a, 0xc3, 0x96, 0x83, 0x8c, 0xeb, 0x4b, 0x5a, 0x1a, 0xfd,
+};
+
+void olympic5_decrypt(running_machine &machine)
+{
+ auto const src = reinterpret_cast<u16 *>(machine.root_device().memregion("user1")->base());
+
+ int const rom_size = 0x80000;
+
+ for (int i = 0; i < rom_size / 2; i++)
+ {
+ uint16_t x = src[i];
+
+ // fairly high confidence in conditional xors with comments
+ IGS27_CRYPT1 // 2df0
+ IGS27_CRYPT2_ALT // ac50
+ IGS27_CRYPT3
+ IGS27_CRYPT4 // 2df0
+ IGS27_CRYPT5 // 109f0
+ IGS27_CRYPT6
+ IGS27_CRYPT7
+ IGS27_CRYPT8 // 3340
+
+ x ^= olympic5_tab[(i>> 1) & 0xff] << 8;
+
+ src[i] = x;
+ }
+}
diff --git a/src/mame/igs/pgmcrypt.h b/src/mame/igs/pgmcrypt.h
index 421f72eb8b6..861f3a77fb5 100644
--- a/src/mame/igs/pgmcrypt.h
+++ b/src/mame/igs/pgmcrypt.h
@@ -45,3 +45,6 @@ void mgzz_decrypt(running_machine &machine);
void mgcs3_decrypt(running_machine &machine);
void crzybugs_decrypt(running_machine &machine);
void qlgs_decrypt(running_machine &machine);
+void jking02_decrypt(running_machine &machine);
+void luckycrs_decrypt(running_machine &machine);
+void olympic5_decrypt(running_machine &machine);
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 8a78ac61e05..c5d10dea460 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -20220,8 +20220,8 @@ mgfx // (c) 200?
mgzz // (c) 2003
oceanpar //
oceanpara //
-olympic5 // (c) 200?
-olympic5a // (c) 200?
+olympic5 // (c) 2005
+olympic5a // (c) 2003
qlgs // (c) 1999
sddz // (c) 200?
sdwx // (c) 2002