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https://github.com/holub/mame
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cvs :
- huncholy,superbik,hero : simulate protection instead of patching it out [iq_132, Robbbert] - proper privacy of functions
This commit is contained in:
Robbbert
parent
012cbee2c3
commit
d1f79a39b3
@ -1549,23 +1549,21 @@ ROM_END
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*
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*************************************/
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READ8_MEMBER(cvs_state::huncholy_prot_r)
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{
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if (offset == 1)
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{
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m_protection_counter++;
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if ((m_protection_counter & 0x0f) == 0x01) return 0x00;
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return 0xff;
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}
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return 0; // offset 0
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}
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void cvs_state::init_huncholy()
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{
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uint8_t *ROM = memregion("maincpu")->base();
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/* patch out protection */
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ROM[0x0082] = 0xc0;
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ROM[0x0083] = 0xc0;
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ROM[0x0084] = 0xc0;
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ROM[0x00b7] = 0xc0;
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ROM[0x00b8] = 0xc0;
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ROM[0x00b9] = 0xc0;
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ROM[0x00d9] = 0xc0;
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ROM[0x00da] = 0xc0;
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ROM[0x00db] = 0xc0;
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ROM[0x4456] = 0xc0;
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ROM[0x4457] = 0xc0;
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ROM[0x4458] = 0xc0;
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m_maincpu->space(AS_PROGRAM).install_read_handler(0x6ff1, 0x6ff2, read8_delegate(FUNC(cvs_state::huncholy_prot_r),this));
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}
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@ -1578,57 +1576,48 @@ void cvs_state::init_hunchbaka()
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}
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READ8_MEMBER(cvs_state::superbik_prot_r)
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{
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m_protection_counter++;
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if ((m_protection_counter & 0x0f) == 0x02) return 0;
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return 0xff;
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}
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void cvs_state::init_superbik()
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{
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uint8_t *ROM = memregion("maincpu")->base();
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/* patch out protection */
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ROM[0x0079] = 0xc0;
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ROM[0x007a] = 0xc0;
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ROM[0x007b] = 0xc0;
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ROM[0x0081] = 0xc0;
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ROM[0x0082] = 0xc0;
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ROM[0x0083] = 0xc0;
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ROM[0x00b6] = 0xc0;
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ROM[0x00b7] = 0xc0;
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ROM[0x00b8] = 0xc0;
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ROM[0x0168] = 0xc0;
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ROM[0x0169] = 0xc0;
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ROM[0x016a] = 0xc0;
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ROM[0x413f] = 0xc0;
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ROM[0x4140] = 0xc0;
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ROM[0x4141] = 0xc0;
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/* and speed up the protection check */
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ROM[0x0099] = 0xc0;
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ROM[0x009a] = 0xc0;
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ROM[0x009b] = 0xc0;
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ROM[0x00bb] = 0xc0;
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ROM[0x00bc] = 0xc0;
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ROM[0x00bd] = 0xc0;
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m_protection_counter = 0;
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m_maincpu->space(AS_PROGRAM).install_read_handler(0x73f1, 0x73f2, read8_delegate(FUNC(cvs_state::superbik_prot_r),this));
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}
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READ8_MEMBER(cvs_state::hero_prot_r)
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{
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u8 *ROM = memregion("maincpu")->base() + 0x73f0;
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switch (offset + 0x73f0)
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{
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case 0x73f0: // pc: 7d, ab9
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return 0xff; // 0x03 at this address in ROM
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case 0x73f1: // pc: 83, read and then overwritten by 0x73f2 read
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return 0; // 0x02 at this address in ROM
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case 0x73f2: // pc: 86, needs to match read from 0x73f0
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return 0xff & 0x7e; // 0x04 at this address in ROM
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case 0x73f9: // pc: A9f, not sure what this is suppose to do?
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return 0x00; // 0x1e at this address in ROM
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case 0x73fe: // aa8
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return 0xff; // 0x5e at this address in ROM
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}
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return ROM[offset];
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}
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void cvs_state::init_hero()
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{
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uint8_t *ROM = memregion("maincpu")->base();
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/* patch out protection */
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ROM[0x0087] = 0xc0;
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ROM[0x0088] = 0xc0;
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ROM[0x0aa1] = 0xc0;
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ROM[0x0aa2] = 0xc0;
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ROM[0x0aa3] = 0xc0;
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ROM[0x0aaf] = 0xc0;
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ROM[0x0ab0] = 0xc0;
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ROM[0x0ab1] = 0xc0;
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ROM[0x0abd] = 0xc0;
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ROM[0x0abe] = 0xc0;
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ROM[0x0abf] = 0xc0;
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ROM[0x4de0] = 0xc0;
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ROM[0x4de1] = 0xc0;
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ROM[0x4de2] = 0xc0;
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m_maincpu->space(AS_PROGRAM).install_read_handler(0x73f0, 0x73ff, read8_delegate(FUNC(cvs_state::hero_prot_r),this));
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}
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@ -1672,8 +1661,8 @@ GAME( 1982, diggerc, 0, cvs, diggerc, cvs_state, empty_init, ROT90
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GAME( 1983, heartatk, 0, cvs, heartatk, cvs_state, empty_init, ROT90, "Century Electronics", "Heart Attack", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, hunchbak, 0, cvs, hunchbak, cvs_state, empty_init, ROT90, "Century Electronics", "Hunchback (set 1)", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, hunchbaka, hunchbak, cvs, hunchbak, cvs_state, init_hunchbaka, ROT90, "Century Electronics", "Hunchback (set 2)", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, superbik, 0, cvs, superbik, cvs_state, init_superbik, ROT90, "Century Electronics", "Superbike", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, raiders, 0, cvs, raiders, cvs_state, init_raiders, ROT90, "Century Electronics", "Raiders", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, raidersr3, raiders, cvs, raiders, cvs_state, init_raiders, ROT90, "Century Electronics", "Raiders (Rev.3)", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, superbik, 0, cvs, superbik, cvs_state, init_superbik, ROT90, "Century Electronics", "Superbike", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, raiders, 0, cvs, raiders, cvs_state, init_raiders, ROT90, "Century Electronics", "Raiders", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION| MACHINE_SUPPORTS_SAVE )
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GAME( 1983, raidersr3, raiders, cvs, raiders, cvs_state, init_raiders, ROT90, "Century Electronics", "Raiders (Rev.3)", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION| MACHINE_SUPPORTS_SAVE )
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GAME( 1984, hero, 0, cvs, hero, cvs_state, init_hero, ROT90, "Century Electronics / Seatongrove Ltd", "Hero", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) // (C) 1984 CVS on titlescreen, (C) 1983 Seatongrove on highscore screen
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GAME( 1984, huncholy, 0, cvs, huncholy, cvs_state, init_huncholy, ROT90, "Century Electronics / Seatongrove Ltd", "Hunchback Olympic", MACHINE_NO_COCKTAIL | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
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@ -308,7 +308,7 @@ MACHINE_CONFIG_START(galaxia_state::galaxia)
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MCFG_DEVICE_IO_MAP(galaxia_io_map)
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MCFG_DEVICE_DATA_MAP(galaxia_data_map)
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MCFG_S2650_SENSE_INPUT(READLINE("screen", screen_device, vblank))
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MCFG_S2650_FLAG_OUTPUT(WRITELINE(*this, cvs_state, write_s2650_flag))
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MCFG_S2650_FLAG_OUTPUT(WRITELINE(*this, galaxia_state, write_s2650_flag))
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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@ -352,7 +352,7 @@ MACHINE_CONFIG_START(galaxia_state::astrowar)
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MCFG_DEVICE_IO_MAP(galaxia_io_map)
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MCFG_DEVICE_DATA_MAP(galaxia_data_map)
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MCFG_S2650_SENSE_INPUT(READLINE("screen", screen_device, vblank))
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MCFG_S2650_FLAG_OUTPUT(WRITELINE(*this, cvs_state, write_s2650_flag))
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MCFG_S2650_FLAG_OUTPUT(WRITELINE(*this, galaxia_state, write_s2650_flag))
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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@ -48,8 +48,20 @@ public:
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, m_lamps(*this, "lamp%u", 1U)
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{ }
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void init_raiders();
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void init_huncholy();
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void init_hero();
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void init_superbik();
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void init_hunchbaka();
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void cvs(machine_config &config);
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protected:
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DECLARE_WRITE_LINE_MEMBER(write_s2650_flag); // used by galaxia_state
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DECLARE_READ8_MEMBER(huncholy_prot_r);
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DECLARE_READ8_MEMBER(superbik_prot_r);
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DECLARE_READ8_MEMBER(hero_prot_r);
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DECLARE_READ_LINE_MEMBER(speech_rom_read_bit);
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DECLARE_WRITE_LINE_MEMBER(write_s2650_flag);
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DECLARE_WRITE_LINE_MEMBER(cvs_slave_cpu_interrupt);
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DECLARE_READ8_MEMBER(cvs_input_r);
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DECLARE_WRITE8_MEMBER(cvs_speech_rom_address_lo_w);
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@ -75,11 +87,6 @@ public:
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DECLARE_WRITE8_MEMBER(cvs_unknown_w);
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DECLARE_WRITE8_MEMBER(cvs_tms5110_ctl_w);
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DECLARE_WRITE8_MEMBER(cvs_tms5110_pdc_w);
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void init_raiders();
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void init_huncholy();
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void init_hero();
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void init_superbik();
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void init_hunchbaka();
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DECLARE_VIDEO_START(cvs);
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DECLARE_PALETTE_INIT(cvs);
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uint32_t screen_update_cvs(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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@ -90,14 +97,12 @@ public:
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void cvs_init_stars();
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void cvs_update_stars(bitmap_ind16 &bitmap, const rectangle &cliprect, const pen_t star_pen, bool update_always);
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void start_393hz_timer();
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void cvs(machine_config &config);
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void cvs_dac_cpu_map(address_map &map);
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void cvs_main_cpu_data_map(address_map &map);
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void cvs_main_cpu_io_map(address_map &map);
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void cvs_main_cpu_map(address_map &map);
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void cvs_speech_cpu_map(address_map &map);
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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@ -123,6 +128,7 @@ protected:
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int m_s2650_flag;
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emu_timer *m_cvs_393hz_timer;
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uint8_t m_cvs_393hz_clock;
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uint8_t m_protection_counter;
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uint8_t m_character_banking_mode;
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uint16_t m_character_ram_page_start;
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