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meijinsn: correct audiocpu irq freq, add unemulated protection flag

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hap 2022-12-29 12:22:50 +01:00
parent cae6f799a4
commit b205a9f0f2
3 changed files with 15 additions and 12 deletions
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18
src/mame/alpha/meijinsn.cpp
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@ -11,7 +11,7 @@ and old alpha shougi hardware (framebuffer).
There's probably no upright cabinet, only cocktail table (controls in 2p mode are inverted). There's probably no upright cabinet, only cocktail table (controls in 2p mode are inverted).
TODO: TODO:
- not sure if protection simulation is right, there is a problem on the selection screen, - protection simulation isn't right, there is a problem on the selection screen,
it's usually not possible to choose tsume shogi (3 difficulty levels) it's usually not possible to choose tsume shogi (3 difficulty levels)
Buttons: Buttons:
@ -215,7 +215,7 @@ void meijinsn_state::sound_io_map(address_map &map)
map(0x00, 0x01).w("aysnd", FUNC(ay8910_device::address_data_w)); map(0x00, 0x01).w("aysnd", FUNC(ay8910_device::address_data_w));
map(0x01, 0x01).r("aysnd", FUNC(ay8910_device::data_r)); map(0x01, 0x01).r("aysnd", FUNC(ay8910_device::data_r));
map(0x02, 0x02).w("soundlatch", FUNC(generic_latch_8_device::clear_w)); map(0x02, 0x02).w("soundlatch", FUNC(generic_latch_8_device::clear_w));
map(0x04, 0x04).w("dac", FUNC(dac_8bit_r2r_device::write)); map(0x04, 0x04).w("dac", FUNC(dac_6bit_r2r_device::write));
map(0x06, 0x06).nopw(); map(0x06, 0x06).nopw();
} }
@ -357,14 +357,14 @@ void meijinsn_state::machine_reset()
void meijinsn_state::meijinsn(machine_config &config) void meijinsn_state::meijinsn(machine_config &config)
{ {
// basic machine hardware // basic machine hardware
M68000(config, m_maincpu, 8000000); M68000(config, m_maincpu, 16_MHz_XTAL / 2);
m_maincpu->set_addrmap(AS_PROGRAM, &meijinsn_state::main_map); m_maincpu->set_addrmap(AS_PROGRAM, &meijinsn_state::main_map);
TIMER(config, "scantimer").configure_scanline(FUNC(meijinsn_state::interrupt), "screen", 0, 1); TIMER(config, "scantimer").configure_scanline(FUNC(meijinsn_state::interrupt), "screen", 0, 1);
z80_device &audiocpu(Z80(config, "audiocpu", 4000000)); z80_device &audiocpu(Z80(config, "audiocpu", 16_MHz_XTAL / 4));
audiocpu.set_addrmap(AS_PROGRAM, &meijinsn_state::sound_map); audiocpu.set_addrmap(AS_PROGRAM, &meijinsn_state::sound_map);
audiocpu.set_addrmap(AS_IO, &meijinsn_state::sound_io_map); audiocpu.set_addrmap(AS_IO, &meijinsn_state::sound_io_map);
audiocpu.set_periodic_int(FUNC(meijinsn_state::irq0_line_hold), attotime::from_hz(160*60)); audiocpu.set_periodic_int(FUNC(meijinsn_state::irq0_line_hold), attotime::from_hz(16_MHz_XTAL / 0x800));
GENERIC_LATCH_8(config, "soundlatch"); GENERIC_LATCH_8(config, "soundlatch");
@ -382,12 +382,12 @@ void meijinsn_state::meijinsn(machine_config &config)
// sound hardware // sound hardware
SPEAKER(config, "mono").front_center(); SPEAKER(config, "mono").front_center();
ay8910_device &aysnd(AY8910(config, "aysnd", 2000000)); ay8910_device &aysnd(AY8910(config, "aysnd", 16_MHz_XTAL / 8));
aysnd.port_a_read_callback().set("soundlatch", FUNC(generic_latch_8_device::read)); aysnd.port_a_read_callback().set("soundlatch", FUNC(generic_latch_8_device::read));
aysnd.port_b_write_callback().set_nop(); // ? aysnd.port_b_write_callback().set_nop(); // ?
aysnd.add_route(ALL_OUTPUTS, "mono", 0.25); aysnd.add_route(ALL_OUTPUTS, "mono", 0.25);
DAC_8BIT_R2R(config, "dac").add_route(ALL_OUTPUTS, "mono", 1.0); DAC_6BIT_R2R(config, "dac").add_route(ALL_OUTPUTS, "mono", 0.5);
} }
@ -448,5 +448,5 @@ ROM_END
} // Anonymous namespace } // Anonymous namespace
GAME( 1986, meijinsn, 0, meijinsn, meijinsn, meijinsn_state, empty_init, ROT0, "SNK", "Meijinsen (set 1)", MACHINE_SUPPORTS_SAVE ) GAME( 1986, meijinsn, 0, meijinsn, meijinsn, meijinsn_state, empty_init, ROT0, "SNK", "Meijinsen (set 1)", MACHINE_UNEMULATED_PROTECTION | MACHINE_SUPPORTS_SAVE )
GAME( 1986, meijinsna, meijinsn, meijinsn, meijinsn, meijinsn_state, empty_init, ROT0, "SNK", "Meijinsen (set 2)", MACHINE_SUPPORTS_SAVE ) GAME( 1986, meijinsna, meijinsn, meijinsn, meijinsn, meijinsn_state, empty_init, ROT0, "SNK", "Meijinsen (set 2)", MACHINE_UNEMULATED_PROTECTION | MACHINE_SUPPORTS_SAVE )

7
src/mame/handheld/chessking.cpp
View File

@ -2,12 +2,13 @@
// copyright-holders:David Haywood, hap // copyright-holders:David Haywood, hap
/* /*
Chess King (棋王之王), LCD handheld presumably from Taiwan. Chess King (棋王之王), LCD handheld console presumably from Taiwan.
Hold down u+d+l+r buttons at boot to enter a test/data clear mode of sorts. Hold down u+d+l+r buttons at boot to enter a test/data clear mode of sorts.
TODO: TODO:
- lots of unknown writes - lots of unknown writes
- sound emulation is guessed - sound emulation is guessed
- dump/add more cartridges? considering how unknown the handheld is, maybe only a handful were released
- LCD chip(s) is not emulated, maybe the I/O chip does a DMA from RAM to the LCD? - LCD chip(s) is not emulated, maybe the I/O chip does a DMA from RAM to the LCD?
- chess game is buggy, assume that's just the way it is, aka BTANB - chess game is buggy, assume that's just the way it is, aka BTANB
eg. sometimes it makes an illegal move, or castling doesn't erase the king from its original spot eg. sometimes it makes an illegal move, or castling doesn't erase the king from its original spot
@ -191,9 +192,11 @@ uint8_t chessking_state::cartridge_r(offs_t offset)
if (m_cart_bank == 1) if (m_cart_bank == 1)
return m_mainrom[offset & 0x1ffff]; return m_mainrom[offset & 0x1ffff];
else if (m_cart_bank & 4) // banks 4-7 go to cartridge
else if (m_cart_bank >= 4)
return m_cart->read_rom(offset | (m_cart_bank & 3) << 19); return m_cart->read_rom(offset | (m_cart_bank & 3) << 19);
// other banks: maybe cartridge too?
return 0; return 0;
} }