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sstingry: Replace protection simulation with MCU emulation

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This commit is contained in:
AJR 2019-09-26 16:25:53 -04:00
parent afe6d421ae
commit a8d1c9c7e0
2 changed files with 118 additions and 24 deletions
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119
src/mame/drivers/alpha68k_n.cpp
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@ -227,6 +227,67 @@ u16 alpha68k_N_state::kyros_alpha_trigger_r(offs_t offset)
return 0; /* Values returned don't matter */
}
u8 sstingray_state::alpha8511_command_r(offs_t offset)
{
if (!machine().side_effects_disabled())
m_alpha8511_sync_timer->adjust(attotime::zero, offset << 8 | 0x100ff);
return 0;
}
void sstingray_state::alpha8511_command_w(offs_t offset, u8 data)
{
m_alpha8511_sync_timer->adjust(attotime::zero, offset << 8 | data);
}
TIMER_CALLBACK_MEMBER(sstingray_state::alpha8511_sync)
{
m_microcontroller_data = param & 0xff;
m_alpha8511_address = (param >> 8) & 0xff;
m_alpha8511_read_mode = BIT(param, 16);
if (BIT(m_alpha8511_control, 4))
{
m_alpha8511->set_input_line(MCS48_INPUT_IRQ, ASSERT_LINE);
if (m_alpha8511_read_mode)
m_maincpu->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
}
}
u8 sstingray_state::alpha8511_bus_r()
{
return m_microcontroller_data;
}
void sstingray_state::alpha8511_bus_w(u8 data)
{
m_microcontroller_data = data;
}
u8 sstingray_state::alpha8511_address_r()
{
return m_alpha8511_address;
}
u8 sstingray_state::alpha8511_rw_r()
{
return m_alpha8511_read_mode ? 0xff : 0xf7;
}
void sstingray_state::alpha8511_control_w(u8 data)
{
if (!BIT(data, 4))
m_alpha8511->set_input_line(MCS48_INPUT_IRQ, CLEAR_LINE);
if (BIT(data, 5))
m_maincpu->set_input_line(M68K_IRQ_2, HOLD_LINE);
if (!BIT(data, 6))
{
m_shared_ram[m_alpha8511_address] = (m_shared_ram[m_alpha8511_address] & 0xff00) | m_microcontroller_data;
m_maincpu->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
}
flipscreen_w(!BIT(data, 7));
m_alpha8511_control = data;
}
u16 jongbou_state::dial_inputs_r()
{
u8 inp1 = m_in[3]->read();
@ -242,13 +303,24 @@ u16 jongbou_state::dial_inputs_r()
*
*/
void sstingray_state::main_map(address_map &map)
{
map(0x000000, 0x01ffff).rom(); // main program
map(0x020000, 0x020fff).ram().share("shared_ram"); // work RAM
map(0x040000, 0x041fff).ram().share("spriteram"); // sprite RAM
map(0x060000, 0x060001).ram().share("videoram"); // MSB: watchdog, LSB: BGC
map(0x080000, 0x0801ff).rw(FUNC(sstingray_state::alpha8511_command_r), FUNC(sstingray_state::alpha8511_command_w)).umask16(0x00ff);
map(0x0c0000, 0x0c0001).portr("IN0");
map(0x0e0000, 0x0e0000).lr8("kyros_dip_r", [this]() -> u8 { return m_in[1]->read(); }).w(m_soundlatch, FUNC(generic_latch_8_device::write));
}
void alpha68k_N_state::main_map(address_map &map)
{
map(0x000000, 0x01ffff).rom(); // main program
map(0x020000, 0x020fff).ram().share("shared_ram"); // work RAM
map(0x040000, 0x041fff).ram().share("spriteram"); // sprite RAM
map(0x060000, 0x060001).ram().share("videoram"); // MSB: watchdog, LSB: BGC
map(0x080000, 0x0801ff).rw(FUNC(alpha68k_N_state::kyros_alpha_trigger_r), FUNC(alpha68k_N_state::alpha_microcontroller_w));
map(0x080000, 0x0801ff).rw(FUNC(kyros_state::kyros_alpha_trigger_r), FUNC(kyros_state::alpha_microcontroller_w));
map(0x0c0000, 0x0c0001).portr("IN0");
map(0x0e0000, 0x0e0000).lr8("kyros_dip_r", [this]() -> u8 { return m_in[1]->read(); }).w(m_soundlatch, FUNC(generic_latch_8_device::write));
}
@ -276,7 +348,7 @@ void alpha68k_N_state::sound_map(address_map &map)
*/
}
void superstingray_state::sound_map(address_map &map)
void sstingray_state::sound_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0x87ff).ram();
@ -613,29 +685,29 @@ void alpha68k_N_state::video_config(machine_config &config, u8 tile_transchar, u
m_is_super_stingray = is_super_stingray;
}
void superstingray_state::sstingry(machine_config &config)
void sstingray_state::sstingry(machine_config &config)
{
base_config(config);
/* basic machine hardware */
M68000(config, m_maincpu, 6000000); /* 24MHz/4? */
m_maincpu->set_addrmap(AS_PROGRAM, &superstingray_state::main_map);
m_maincpu->set_vblank_int("screen", FUNC(superstingray_state::irq1_line_hold));
m_maincpu->set_periodic_int(FUNC(superstingray_state::irq2_line_hold), attotime::from_hz(60)); // MCU irq
m_maincpu->set_addrmap(AS_PROGRAM, &sstingray_state::main_map);
m_maincpu->set_vblank_int("screen", FUNC(sstingray_state::irq1_line_hold));
//m_maincpu->set_periodic_int(FUNC(sstingray_state::irq2_line_hold), attotime::from_hz(60)); // MCU irq
Z80(config, m_audiocpu, 3579545);
m_audiocpu->set_addrmap(AS_PROGRAM, &superstingray_state::sound_map);
m_audiocpu->set_addrmap(AS_IO, &superstingray_state::sound_iomap);
m_audiocpu->set_vblank_int("screen", FUNC(superstingray_state::irq0_line_hold));
m_audiocpu->set_periodic_int(FUNC(superstingray_state::nmi_line_pulse), attotime::from_hz(4000));
m_audiocpu->set_addrmap(AS_PROGRAM, &sstingray_state::sound_map);
m_audiocpu->set_addrmap(AS_IO, &sstingray_state::sound_iomap);
m_audiocpu->set_vblank_int("screen", FUNC(sstingray_state::irq0_line_hold));
m_audiocpu->set_periodic_int(FUNC(sstingray_state::nmi_line_pulse), attotime::from_hz(4000));
i8748_device &mcu(I8748(config, "mcu", 9263750)); /* 9.263750 MHz oscillator, divided by 3*5 internally */
// mcu.set_addrmap(AS_PROGRAM, &alpha68k_N_state::i8748_map);
// mcu.bus_in_cb().set(FUNC(alpha68k_N_state::saiyugoub1_mcu_command_r));
// MCFG_MCS48_PORT_T0_CLK_CUSTOM(alpha68k_N_state, saiyugoub1_m5205_clk_w) /* Drives the clock on the m5205 at 1/8 of this frequency */
// mcu.t1_in_cb().set(FUNC(alpha68k_N_state::saiyugoub1_m5205_irq_r));
// mcu.p1_out_cb().set(FUNC(alpha68k_N_state::saiyugoub1_adpcm_rom_addr_w));
// mcu.p2_out_cb().set(FUNC(alpha68k_N_state::saiyugoub1_adpcm_control_w));
mcu.set_disable();
I8748(config, m_alpha8511, 9263750); /* 9.263750 MHz(?) oscillator, divided by 3*5 internally */
m_alpha8511->bus_in_cb().set(FUNC(sstingray_state::alpha8511_bus_r));
m_alpha8511->bus_out_cb().set(FUNC(sstingray_state::alpha8511_bus_w));
m_alpha8511->p1_in_cb().set(FUNC(sstingray_state::alpha8511_address_r));
m_alpha8511->p2_in_cb().set(FUNC(sstingray_state::alpha8511_rw_r));
m_alpha8511->p2_out_cb().set(FUNC(sstingray_state::alpha8511_control_w));
m_alpha8511->t0_in_cb().set_ioport("IN2").bit(0);
m_alpha8511->t1_in_cb().set_ioport("IN2").bit(1);
GFXDECODE(config, m_gfxdecode, m_palette, gfx_sstingry);
video_config(config, 0x40, 0, true);
@ -730,7 +802,7 @@ ROM_START( sstingry )
ROM_LOAD( "ss_01.rom", 0x0000, 0x4000, CRC(fef09a92) SHA1(77b6aded1eed1bd5e6ffb25b56b62b10b7b9a304) )
ROM_LOAD( "ss_02.rom", 0x4000, 0x4000, CRC(ab4e8c01) SHA1(d96e7f97945fff48fb7b4661fdb575ac7ff77445) )
ROM_REGION( 0x0400, "mcu", 0 ) /* 8748 MCU code */
ROM_REGION( 0x0400, "alpha8511", 0 ) /* 8748 MCU code */
ROM_LOAD( "d8748.bin", 0x0000, 0x0400, CRC(7fcbfc30) SHA1(6d087a3d44e475b6c8260a5134952097f26459b7) )
ROM_REGION( 0x60000, "gfx1", 0 )
@ -873,12 +945,17 @@ ROM_START( jongbou )
ROM_LOAD( "p3.i15", 0x0000, 0x2000, CRC(8c09cd2a) SHA1(317764e0f5af29e78fd764bdf28579bf6be5630f) )
ROM_END
void superstingray_state::init_sstingry()
void sstingray_state::init_sstingry()
{
m_invert_controls = 0;
m_microcontroller_id = 0x00ff;
m_coin_id = 0x22 | (0x22 << 8);
m_game_id = 0;
m_alpha8511_sync_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(sstingray_state::alpha8511_sync), this));
save_item(NAME(m_alpha8511_address));
save_item(NAME(m_alpha8511_control));
save_item(NAME(m_alpha8511_read_mode));
}
void kyros_state::init_kyros()
@ -897,7 +974,7 @@ void jongbou_state::init_jongbou()
m_game_id = ALPHA68K_JONGBOU;
}
GAME( 1986, sstingry, 0, sstingry, sstingry, superstingray_state, init_sstingry, ROT90, "Alpha Denshi Co.", "Super Stingray (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING | MACHINE_UNEMULATED_PROTECTION )
GAME( 1986, sstingry, 0, sstingry, sstingry, sstingray_state, init_sstingry, ROT90, "Alpha Denshi Co.", "Super Stingray (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING )
GAME( 1987, kyros, 0, kyros, kyros, kyros_state, init_kyros, ROT90, "Alpha Denshi Co. (World Games Inc. license)", "Kyros", MACHINE_SUPPORTS_SAVE )
GAME( 1986, kyrosj, kyros, kyros, kyros, kyros_state, init_kyros, ROT90, "Alpha Denshi Co.", "Kyros no Yakata (Japan)", MACHINE_SUPPORTS_SAVE )

23
src/mame/includes/alpha68k.h
View File

@ -178,7 +178,7 @@ public:
protected:
void main_map(address_map &map);
void base_config(machine_config &config);
void video_config(machine_config &config, u8 tile_transchar, u8 tile_bankshift, bool is_super_stingray);
@ -195,18 +195,35 @@ private:
bool m_is_super_stingray;
};
class superstingray_state : public alpha68k_N_state
class sstingray_state : public alpha68k_N_state
{
public:
superstingray_state(const machine_config &mconfig, device_type type, const char *tag)
sstingray_state(const machine_config &mconfig, device_type type, const char *tag)
: alpha68k_N_state(mconfig, type, tag)
, m_alpha8511(*this, "alpha8511")
{}
void init_sstingry();
void sstingry(machine_config &config);
private:
u8 alpha8511_command_r(offs_t offset);
void alpha8511_command_w(offs_t offset, u8 data);
TIMER_CALLBACK_MEMBER(alpha8511_sync);
u8 alpha8511_bus_r();
void alpha8511_bus_w(u8 data);
u8 alpha8511_address_r();
u8 alpha8511_rw_r();
void alpha8511_control_w(u8 data);
void main_map(address_map &map);
void sound_map(address_map &map);
required_device<mcs48_cpu_device> m_alpha8511;
u8 m_alpha8511_address;
u8 m_alpha8511_control;
bool m_alpha8511_read_mode;
emu_timer *m_alpha8511_sync_timer;
};
class kyros_state : public alpha68k_N_state