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author Ivan Vangelista <mesgnet@yahoo.it>2021-01-18 19:12:23 +0100
committer Ivan Vangelista <mesgnet@yahoo.it>2021-01-18 19:12:23 +0100
commit2f71944e009d6af592d769528431e7f18bd31b39 (patch)
tree5c0a9148008b7de8499b63eb7ce69597ced5a781
parentd45d030a6ecd1cf29a06eff6b3dd2044b4cd0b40 (diff)
astrcorp.cpp: added preliminary decryption for winbingo and clones and zoo. Also renamed zoo to zulu
-rw-r--r--src/mame/drivers/astrcorp.cpp141
-rw-r--r--src/mame/mame.lst8
2 files changed, 124 insertions, 25 deletions
diff --git a/src/mame/drivers/astrcorp.cpp b/src/mame/drivers/astrcorp.cpp
index 92d4120b6ec..41e68138c6d 100644
--- a/src/mame/drivers/astrcorp.cpp
+++ b/src/mame/drivers/astrcorp.cpp
@@ -32,10 +32,13 @@ Year + Game PCB ID CPU Video Chips
TODO:
-- Find source of level 2 interrupt (sprite DMA end?)
-- Decrypt newer games;
+- Find source of level 2 interrupt (sprite DMA end?);
- magibomb: fix timings;
-- astoneag: finish program ROM decryption;
+- astoneag, magibombd: currently stop during with 'ROM error'. The first few hundred bytes don't decrypt correctly,
+ it it suspected there's a ROM overlay provided by the protection device;
+- winbingo and clones, zulu: these should be at the same state of the two above, but don't show anything on screen;
+- magibomba, westvent: need a redump of one of the program ROMs;
+- dinodino: not decrypted yet.
*************************************************************************************************************/
@@ -152,6 +155,8 @@ public:
void magibombd(machine_config &config);
void init_astoneage();
void init_magibombd();
+ void init_winbingo();
+ void init_zulu();
protected:
virtual void machine_start() override;
@@ -175,12 +180,14 @@ private:
u8 xor_mask;
} entries[8];
} rom[2];
- // Global address bitswap (src -> dest, bits 12-8 only)
- u8 bits[5];
+ // Global address bitswap (src -> dest, some sets use bits 12-8 only, while others 12-2)
+ u8 bits[11];
};
static const decryption_info astoneag_table;
static const decryption_info magibombd_table;
+ static const decryption_info winbingo_table;
+ static const decryption_info zulu_table;
void decrypt_rom(const decryption_info &table);
};
@@ -1362,10 +1369,10 @@ J1 is an 2 pin connector, unknown purpose
***************************************************************************/
-ROM_START( zoo )
- ROM_REGION( 0x20000, "maincpu", 0 )
- ROM_LOAD16_BYTE( "zoo_zo.02.d.u25", 0x00000, 0x10000, CRC(8566aa21) SHA1(319192e2074f3bdda6001d8e9a4b97e98826d7ce) )
- ROM_LOAD16_BYTE( "zoo_zo.02.d.u26", 0x00001, 0x10000, CRC(1a3be45a) SHA1(877be4c9e8d5e7c4644e7bcb9a6729443ed772a4) )
+ROM_START( zulu )
+ ROM_REGION( 0x40000, "maincpu", 0 )
+ ROM_LOAD16_BYTE( "zoo_zo.02.d.u26", 0x00000, 0x10000, CRC(1a3be45a) SHA1(877be4c9e8d5e7c4644e7bcb9a6729443ed772a4) )
+ ROM_LOAD16_BYTE( "zoo_zo.02.d.u25", 0x00001, 0x10000, CRC(8566aa21) SHA1(319192e2074f3bdda6001d8e9a4b97e98826d7ce) )
ROM_REGION( 0x200000, "sprites", 0 )
ROM_LOAD( "29f1610mc.u26", 0x000000, 0x200000, CRC(f5cfd915) SHA1(ec869b47d0762102509dcfc1349d94340037fad5) )
@@ -1561,12 +1568,18 @@ void astoneage_state::decrypt_rom(const decryption_info &table)
// scrambling
for(u32 i = 0; i != size; i += 2) {
u32 dest =
- (i & 0xffffe0ff) |
- (BIT(i, table.bits[0]) << 12) |
- (BIT(i, table.bits[1]) << 11) |
- (BIT(i, table.bits[2]) << 10) |
- (BIT(i, table.bits[3]) << 9) |
- (BIT(i, table.bits[4]) << 8);
+ (i & 0xffffe003) |
+ (BIT(i, table.bits[0]) << 12) |
+ (BIT(i, table.bits[1]) << 11) |
+ (BIT(i, table.bits[2]) << 10) |
+ (BIT(i, table.bits[3]) << 9) |
+ (BIT(i, table.bits[4]) << 8) |
+ (BIT(i, table.bits[5]) << 7) |
+ (BIT(i, table.bits[6]) << 6) |
+ (BIT(i, table.bits[7]) << 5) |
+ (BIT(i, table.bits[8]) << 4) |
+ (BIT(i, table.bits[9]) << 3) |
+ (BIT(i, table.bits[10]) << 2);
rom[dest >> 1] = tmp[i >> 1];
}
}
@@ -1600,7 +1613,7 @@ const astoneage_state::decryption_info astoneage_state::astoneag_table = {
}
},
},
- { 12, 9, 11, 8, 10 }
+ { 12, 9, 11, 8, 10, 7, 6, 5, 4, 3, 2 }
};
void astoneage_state::init_astoneage()
@@ -1644,7 +1657,7 @@ const astoneage_state::decryption_info astoneage_state::magibombd_table = {
}
},
},
- { 12, 9, 8, 10, 11 }
+ { 12, 9, 8, 10, 11, 7, 6, 5, 4, 3, 2 }
};
void astoneage_state::init_magibombd()
@@ -1658,6 +1671,92 @@ void astoneage_state::init_magibombd()
rom[0x006/2] = 0x0446;
}
+const astoneage_state::decryption_info astoneage_state::winbingo_table = {
+ {
+ {
+ { 8, 11, 9 },
+ {
+ { { 7, 5, 4, 6, 0, 3, 2, 1 }, 0x00 },
+ { { 1, 4, 6, 0, 2, 5, 3, 7 }, 0xd0 },
+ { { 1, 7, 4, 3, 6, 5, 0, 2 }, 0x88 },
+ { { 6, 5, 2, 3, 7, 1, 0, 4 }, 0xd1 },
+ { { 6, 1, 7, 2, 4, 0, 3, 5 }, 0x64 },
+ { { 1, 7, 2, 6, 5, 4, 3, 0 }, 0x83 },
+ { { 6, 7, 4, 2, 5, 0, 1, 3 }, 0x81 },
+ { { 7, 5, 1, 0, 2, 4, 6, 3 }, 0xea },
+ }
+ },
+ {
+ { 12, 11, 10 },
+ {
+ { { 6, 5, 4, 3, 2, 1, 0, 7 }, 0x90 },
+ { { 2, 4, 0, 7, 5, 6, 3, 1 }, 0x32 },
+ { { 7, 1, 0, 6, 5, 2, 3, 4 }, 0xa9 },
+ { { 2, 0, 3, 5, 1, 4, 6, 7 }, 0xa2 },
+ { { 3, 0, 6, 5, 2, 1, 4, 7 }, 0x02 },
+ { { 0, 1, 6, 4, 5, 2, 7, 3 }, 0x30 },
+ { { 3, 5, 2, 7, 6, 1, 4, 0 }, 0x0a },
+ { { 0, 6, 4, 2, 7, 3, 1, 5 }, 0x81 },
+ }
+ },
+ },
+ { 12, 9, 8, 10, 11, 7, 5, 3, 6, 2, 4 }
+};
+
+void astoneage_state::init_winbingo()
+{
+ decrypt_rom(winbingo_table);
+
+ // TODO: There's more stuff happening for addresses < 0x400...
+ // override reset vector for now
+ u16 *rom = (u16 *)memregion("maincpu")->base();
+ rom[0x004/2] = 0x0000;
+ rom[0x006/2] = 0x0400;
+}
+
+const astoneage_state::decryption_info astoneage_state::zulu_table = {
+ {
+ {
+ { 8, 9, 10 },
+ {
+ { { 7, 5, 4, 6, 0, 3, 2, 1 }, 0x00 },
+ { { 1, 4, 6, 0, 2, 5, 3, 7 }, 0xd0 },
+ { { 1, 7, 4, 3, 6, 5, 0, 2 }, 0x88 },
+ { { 6, 5, 2, 3, 7, 1, 0, 4 }, 0xd1 },
+ { { 6, 1, 7, 2, 4, 0, 3, 5 }, 0x64 },
+ { { 1, 7, 2, 6, 5, 4, 3, 0 }, 0x83 },
+ { { 6, 7, 4, 2, 5, 0, 1, 3 }, 0x81 },
+ { { 7, 5, 1, 0, 2, 4, 6, 3 }, 0xea },
+ }
+ },
+ {
+ { 12, 9, 11 },
+ {
+ { { 6, 5, 4, 3, 2, 1, 0, 7 }, 0x90 },
+ { { 2, 4, 0, 7, 5, 6, 3, 1 }, 0x32 },
+ { { 7, 1, 0, 6, 5, 2, 3, 4 }, 0xa9 },
+ { { 2, 0, 3, 5, 1, 4, 6, 7 }, 0xa2 },
+ { { 3, 0, 6, 5, 2, 1, 4, 7 }, 0x02 },
+ { { 0, 1, 6, 4, 5, 2, 7, 3 }, 0x30 },
+ { { 3, 5, 2, 7, 6, 1, 4, 0 }, 0x0a },
+ { { 0, 6, 4, 2, 7, 3, 1, 5 }, 0x81 },
+ }
+ },
+ },
+ { 12, 10, 8, 11, 9, 7, 5, 3, 6, 2, 4 }
+};
+
+void astoneage_state::init_zulu()
+{
+ decrypt_rom(zulu_table);
+
+ // TODO: There's more stuff happening for addresses < 0x400...
+ // override reset vector for now
+ u16 *rom = (u16 *)memregion("maincpu")->base();
+ rom[0x004/2] = 0x0000;
+ rom[0x006/2] = 0x0400;
+}
+
void magibomb_state::init_magibomb()
{
// decrypt data
@@ -1712,8 +1811,8 @@ GAME( 2001?, magibombe, magibomb, magibombb, magibomb, magibomb_state, init_mag
GAME( 2003?, dinodino, 0, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Dino Dino", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
GAME( 2004?, astoneag, 0, astoneage, skilldrp, astoneage_state, init_astoneage, ROT0, "Astro Corp.", "Stone Age (Astro, Ver. ENG.03.A)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
GAME( 2005, magibombd, magibomb, magibombd, skilldrp, astoneage_state, init_magibombd, ROT0, "Astro Corp.", "Magic Bomb (Ver. AA.72D, 14/11/05)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
-GAME( 2005?, winbingo, 0, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Win Win Bingo (set 1)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
-GAME( 2005?, winbingoa, winbingo, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Win Win Bingo (set 2)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
-GAME( 2005?, hacher, winbingo, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "bootleg (Gametron)", "Hacher (hack of Win Win Bingo)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
-GAME( 2005?, zoo, 0, showhand, showhand, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Zoo (Ver. ZO.02.D)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
+GAME( 2006, winbingo, 0, astoneage, skilldrp, astoneage_state, init_winbingo, ROT0, "Astro Corp.", "Win Win Bingo (set 1)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // 15:47:48 Feb 23 2006
+GAME( 2006, winbingoa, winbingo, astoneage, skilldrp, astoneage_state, init_winbingo, ROT0, "Astro Corp.", "Win Win Bingo (set 2)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // 11:02:07 May 11 2006
+GAME( 2005, hacher, winbingo, astoneage, skilldrp, astoneage_state, init_winbingo, ROT0, "bootleg (Gametron)", "Hacher (hack of Win Win Bingo)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // 14:25:46 Mar 10 2005
+GAME( 2004, zulu, 0, astoneage, skilldrp, astoneage_state, init_zulu, ROT0, "Astro Corp.", "Zulu (Ver. ZO.02.D)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) // 10:53:44 Aug 27 2004
GAME( 2007?, westvent, 0, skilldrp, skilldrp, astrocorp_state, empty_init, ROT0, "Astro Corp.", "Western Venture (Ver. AA.02.D)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index e6dd4bd8b00..097a0f01be0 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -2380,7 +2380,7 @@ as_wwe //
@source:astrcorp.cpp
astoneag // (c) 2004? Astro Corp.
dinodino // (c) 2003? Astro Corp.
-hacher // (c) 2005? bootleg (Gametron)
+hacher // (c) 2005 bootleg (Gametron)
magibomb // (c) 2001? Astro Corp.
magibomba // (c) 2002 Astro Corp.
magibombb // (c) 2002 Astro Corp.
@@ -2392,9 +2392,9 @@ showhand // (c) 2000 Astro Corp.
skilldrp // (c) 2002 Astro Corp.
speeddrp // (c) 2003 Astro Corp.
westvent // (c) 2007? Astro Corp.
-winbingo // (c) 2005? Astro Corp.
-winbingoa // (c) 2005? Astro Corp.
-zoo // (c) 2005? Astro Corp.
+winbingo // (c) 2006 Astro Corp.
+winbingoa // (c) 2006 Astro Corp.
+zulu // (c) 2004 Astro Corp.
@source:astrocde.cpp
demndrgn // (c) 1982 Bally Midway