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goldstar.cpp: decryption progress on super7. It now gets in game but needs GFX and color fixes, plus decryption might have some error lurking

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This commit is contained in:
Ivan Vangelista 2021-08-24 19:12:53 +02:00
parent ad57e6a97a
commit 8570f01353
2 changed files with 71 additions and 9 deletions
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79
src/mame/drivers/goldstar.cpp
View File

@ -849,6 +849,16 @@ void cmaster_state::cm_portmap(address_map &map)
map(0x14, 0x14).w(FUNC(cmaster_state::girl_scroll_w));
}
void cmaster_state::super7_portmap(address_map &map)
{
cm_portmap(map);
map(0x02, 0x03).unmaprw();
map(0x03, 0x03).w("aysnd", FUNC(ay8910_device::address_w));
map(0x81, 0x81).r("aysnd", FUNC(ay8910_device::data_r));
map(0x82, 0x82).w("aysnd", FUNC(ay8910_device::data_w));
}
void cmaster_state::cm97_portmap(address_map &map) // TODO: other reads/writes
{
map.global_mask(0xff);
@ -9057,6 +9067,7 @@ void cmaster_state::chryangl(machine_config &config)
{
cm(config);
m_maincpu->set_addrmap(AS_IO, &cmaster_state::super7_portmap);
m_maincpu->set_addrmap(AS_OPCODES, &cmaster_state::chryangl_decrypted_opcodes_map);
}
@ -10562,21 +10573,42 @@ PCB with a New Impeuropex sticker
ROM_START( super7 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "27c512_1", 0x00000, 0x10000, CRC(ddfa6fe7) SHA1(0d86ec5029afd565e039fe84f7001b2dc77c919c) ) // first 0x8000 encrypted
ROM_LOAD( "27c512_1", 0x00000, 0x10000, CRC(ddfa6fe7) SHA1(0d86ec5029afd565e039fe84f7001b2dc77c919c) ) // first 0x8000 opcodes & data encrypted, 0x8000 - 0x93ff only opcodes encrypted, 0x9400 onwards unencrypted?
ROM_REGION( 0x20000, "gfx1", 0 ) // very similar to most cmv4 sets, but differently arranged
ROM_LOAD( "27c010_2", 0x00000, 0x20000, CRC(9636d785) SHA1(8f851aae0b05ad909c48cf94142ab927145da464) )
ROM_REGION( 0x40000, "gfx1", 0 ) // very similar to most cmv4 sets, but differently arranged
ROM_LOAD( "27c010_2", 0x20000, 0x8000, CRC(9636d785) SHA1(8f851aae0b05ad909c48cf94142ab927145da464) )
ROM_CONTINUE( 0x10000, 0x8000 )
ROM_CONTINUE( 0x30000, 0x8000 )
ROM_CONTINUE( 0x00000, 0x8000 )
ROM_COPY( "gfx1", 0x20000, 0x28000, 0x8000)
ROM_COPY( "gfx1", 0x10000, 0x18000, 0x8000)
ROM_COPY( "gfx1", 0x30000, 0x38000, 0x8000)
ROM_COPY( "gfx1", 0x00000, 0x08000, 0x8000)
ROM_REGION( 0x20000, "gfx2", 0 )
ROM_LOAD( "27c010_3", 0x00000, 0x20000, CRC(a6db1162) SHA1(05019166526b0797e3eca8b72d90c325573b3d74) )
ROM_REGION( 0x40000, "graphics", 0 )
ROM_LOAD( "27c010_3", 0x18000, 0x8000, CRC(a6db1162) SHA1(05019166526b0797e3eca8b72d90c325573b3d74) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_CONTINUE( 0x38000, 0x8000 )
ROM_CONTINUE( 0x28000, 0x8000 )
ROM_COPY( "graphics", 0x28000, 0x20000, 0x8000)
ROM_COPY( "graphics", 0x18000, 0x10000, 0x8000)
ROM_COPY( "graphics", 0x38000, 0x30000, 0x8000)
ROM_COPY( "graphics", 0x08000, 0x00000, 0x8000)
ROM_REGION( 0x8000, "gfx2", 0 )
ROM_COPY( "graphics", 0x0e000, 0x00000, 0x2000 )
ROM_COPY( "graphics", 0x1e000, 0x02000, 0x2000 )
ROM_COPY( "graphics", 0x2e000, 0x04000, 0x2000 )
ROM_COPY( "graphics", 0x3e000, 0x06000, 0x2000 )
ROM_REGION( 0x10000, "user1", ROMREGION_ERASEFF ) // no girls ROM
ROM_REGION( 0x800, "proms", 0 ) // RGB generation
ROM_LOAD( "82s191an.bin", 0x000, 0x800, CRC(ec546abe) SHA1(1bd92c0715ec1821fa977a67499dc8971deec9c7) )
ROM_REGION( 0x400, "proms2", 0 )
ROM_LOAD( "82s137an.bin", 0x000, 0x400, CRC(92975789) SHA1(4a85d169db5e298ee201fe7d4b9964b1df16992e) )
ROM_REGION( 0x100, "proms2", 0 )
ROM_LOAD( "82s137an.bin", 0x000, 0x100, CRC(92975789) SHA1(4a85d169db5e298ee201fe7d4b9964b1df16992e) )
ROM_IGNORE(0x300)
ROM_REGION( 0xa00, "plds", 0 )
ROM_LOAD( "palce16v8.bin", 0x000, 0x114, NO_DUMP )
@ -19439,13 +19471,42 @@ void cmaster_state::init_tcl()
}
}
void cmaster_state::init_super7()
void cmaster_state::init_super7() // possibly incomplete decryption. Game appears to work with clean NVRAM, but stops with 'scheda da inizializzare" (PCB to be initialized) message with NVRAM present
{
uint8_t *rom = memregion("maincpu")->base();
for (int a = 0; a < 0x8000; a++)
{
rom[a] = (rom[a] << 1) | BIT(rom[a], 7);
m_decrypted_opcodes[a] = rom[a];
}
for (int a = 0x8000; a < 0x9000; a++)
{
switch (a & 0xc00)
{
case 0x000: m_decrypted_opcodes[a] = bitswap<8>(rom[a] ^ 0x6e, 6, 7, 0, 1, 2, 3, 4, 5); break;
case 0x400: m_decrypted_opcodes[a] = bitswap<8>(rom[a] ^ 0x1e, 7, 6, 5, 4, 3, 2, 1, 0); break;
case 0x800: m_decrypted_opcodes[a] = bitswap<8>(rom[a] ^ 0x1e, 0, 1, 7, 2, 6, 4, 5, 3); break;
case 0xc00: m_decrypted_opcodes[a] = bitswap<8>(rom[a] ^ 0x7d, 2, 0, 1, 3, 4, 5, 6, 7); break;
}
}
for (int a = 0x9000; a < 0x9400; a++)
m_decrypted_opcodes[a] = bitswap<8>(rom[a] ^ 0x62, 4, 5, 3, 6, 7, 0, 2, 1); // TODO: bit 5 and 4 might be swapped
for (int a = 0x9400; a < 0xf000; a++)
m_decrypted_opcodes[a] = rom[a];
// try to rearrange PROM contents to what MAME expects. TODO: still doesn't work
uint8_t *proms = memregion("proms")->base();
for (int i = 0; i < 0x100; i++)
{
uint8_t bits74 = proms[i] >> 4;
uint8_t bits30 = proms[i] & 0x0f;
proms[i] = bits74;
proms[i + 0x100] = bits30;
}
}
@ -19513,7 +19574,7 @@ GAMEL( 1991, cmasterh, cmaster, cm, cmasterh, cmaster_state, init_cmv4,
GAMEL( 1991, cmasteri, cmaster, cm, cmasterb, cmaster_state, init_cmv4, ROT0, "Dyna", "Cherry Master I (ver.1.01, set 9)", 0, layout_cmasterb ) // NMC27CP128Q being 32k x8 instead of 16k x8...
GAMEL( 1991, cmasterj, cmaster, cm, cmasterb, cmaster_state, init_cmv4, ROT0, "Dyna", "Cherry Master I (ver.1.01, set 10, BET stops all)", 0, layout_cmasterb )
GAMEL( 1991, cmasterk, cmaster, cm, cmasterb, cmaster_state, init_cmv4, ROT0, "Dyna", "Cherry Master I (ver.1.01, set 11, TAKE stops all)", 0, layout_cmasterb )
GAMEL( 199?, super7, cmaster, cm, cmaster, cmaster_state, init_super7, ROT0, "bootleg", "Super Seven", MACHINE_NOT_WORKING, layout_cmasterb )
GAMEL( 199?, super7, cmaster, chryangl, cmaster, cmaster_state, init_super7, ROT0, "bootleg", "Super Seven", MACHINE_NOT_WORKING, layout_cmasterb ) // bad palette, no reels, decryption might be missing something, too
GAME ( 199?, wcat3a, wcat3, chryangl, cmaster, cmaster_state, init_wcat3a, ROT0, "E.A.I.", "Wild Cat 3 (CMV4 hardware)", MACHINE_NOT_WORKING ) // does not boot. Wrong decryption, wrong machine or wrong what?
GAMEL( 1991, tonypok, 0, cm, tonypok, cmaster_state, init_tonypok, ROT0, "Corsica", "Poker Master (Tony-Poker V3.A, hack?)", 0 , layout_tonypok )

1
src/mame/includes/goldstar.h
View File

@ -207,6 +207,7 @@ public:
void amcoe2_portmap(address_map &map);
void cm_portmap(address_map &map);
void cm97_portmap(address_map &map);
void super7_portmap(address_map &map);
void chryangl_decrypted_opcodes_map(address_map &map);
void ss2001_portmap(address_map &map);