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crashrd: added some sound

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This commit is contained in:
Robbbert 2018-04-20 02:08:20 +10:00
parent b9ba888fd9
commit aa2d65e810
3 changed files with 101 additions and 1 deletions
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78
src/mame/audio/8080bw.cpp
View File

@ -1137,6 +1137,84 @@ WRITE8_MEMBER(_8080bw_state::schasercv_sh_port_2_w)
/*****************************************/
/* Crash Road preliminary sound */
/* Much more work needs to be done */
/*****************************************/
WRITE8_MEMBER(_8080bw_state::crashrd_port03_w)
{
int effect;
/* bit 0 - Dot Sound Pitch (SX1)
bit 2 - Explosion (SX5)
bit 4 - Dot Sound Enable (SX0)
bit 5 - Effect Sound C (SX4) */
m_discrete->write(space, SCHASER_SND_EN, BIT(data,5));
machine().sound().system_enable(BIT(data,5));
m_discrete->write(space, SCHASER_DOT_EN, BIT(data, 4));
m_discrete->write(space, SCHASER_DOT_SEL, BIT(data, 0));
/* The effect is a variable rate 555 timer. A diode/resistor array is used to
* select the frequency. Because of the diode voltage drop, we can not use the
* standard 555 time formulas. Also, when effect=0, the charge resistor
* is disconnected. This causes the charge on the cap to slowly bleed off, but
* but the bleed time is so long, that we can just cheat and put the time on hold
* when effect = 0. */
effect = 0; //(data >> 2) & 0x07;
if (m_schaser_last_effect != effect)
{
if (effect)
{
if (m_schaser_effect_555_time_remain != attotime::zero)
{
/* timer re-enabled, use up remaining 555 high time */
m_schaser_effect_555_timer->adjust(m_schaser_effect_555_time_remain, effect);
}
else if (!m_schaser_effect_555_is_low)
{
/* set 555 high time */
attotime new_time = attotime(0, ATTOSECONDS_PER_SECOND * .8873 * schaser_effect_rc[effect]);
m_schaser_effect_555_timer->adjust(new_time, effect);
}
}
else
{
/* disable effect - stops at end of low cycle */
if (!m_schaser_effect_555_is_low)
{
m_schaser_effect_555_time_remain = m_schaser_effect_555_timer->time_left();
m_schaser_effect_555_time_remain_savable = m_schaser_effect_555_time_remain.as_double();
m_schaser_effect_555_timer->adjust(attotime::never);
}
}
m_schaser_last_effect = effect;
}
m_schaser_explosion = BIT(data, 2);
if (m_schaser_explosion)
{
m_sn->amplitude_res_w(1.0 / (1.0/RES_K(200) + 1.0/RES_K(68)));
}
else
{
m_sn->amplitude_res_w(RES_K(200));
}
m_sn->enable_w(!(m_schaser_effect_555_is_low || m_schaser_explosion));
m_sn->one_shot_cap_voltage_w(!(m_schaser_effect_555_is_low || m_schaser_explosion) ? 0 : sn76477_device::EXTERNAL_VOLTAGE_DISCONNECT);
m_sn->mixer_b_w(m_schaser_explosion);
}
WRITE8_MEMBER(_8080bw_state::crashrd_port05_w)
{
// bit 0 = bitstream audio
// bit 4 = not sure
m_discrete->write(space, SCHASER_MUSIC_BIT, BIT(data, 0));
}
/*******************************************************************/
/* Yosakdon preliminary sound */
/* No information available as what the correct sounds are */

20
src/mame/drivers/8080bw.cpp
View File

@ -1614,8 +1614,20 @@ void _8080bw_state::schasercv_io_map(address_map &map)
map(0x03, 0x03).r(m_mb14241, FUNC(mb14241_device::shift_result_r)).w(this, FUNC(_8080bw_state::schasercv_sh_port_1_w));
map(0x04, 0x04).w(m_mb14241, FUNC(mb14241_device::shift_data_w));
map(0x05, 0x05).w(this, FUNC(_8080bw_state::schasercv_sh_port_2_w));
//map(0x06, 0x06).w(m_watchdog, FUNC(watchdog_timer_device::reset_w));
}
void _8080bw_state::crashrd_io_map(address_map &map)
{
map(0x01, 0x01).portr("IN1");
map(0x02, 0x02).portr("IN2").w(m_mb14241, FUNC(mb14241_device::shift_count_w));
map(0x03, 0x03).r(m_mb14241, FUNC(mb14241_device::shift_result_r)).w(this, FUNC(_8080bw_state::crashrd_port03_w));
map(0x04, 0x04).w(m_mb14241, FUNC(mb14241_device::shift_data_w));
map(0x05, 0x05).w(this, FUNC(_8080bw_state::crashrd_port05_w));
map(0x06, 0x06).w(m_watchdog, FUNC(watchdog_timer_device::reset_w));
}
static INPUT_PORTS_START( schasercv )
PORT_START("IN0")
@ -1691,6 +1703,12 @@ MACHINE_CONFIG_START(_8080bw_state::schasercv)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
MACHINE_CONFIG_END
MACHINE_CONFIG_START(_8080bw_state::crashrd)
schaser(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_IO_MAP(crashrd_io_map)
MACHINE_CONFIG_END
/*******************************************************/
@ -5204,7 +5222,7 @@ GAME( 1979, schaserb, schaser, schaser, schaser, _8080bw_state, 0,
GAME( 1979, schaserc, schaser, schaser, schaser, _8080bw_state, 0, ROT270, "Taito", "Space Chaser (set 4)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_COLORS )
GAME( 1979, schasercv, schaser, schasercv, schasercv, _8080bw_state, 0, ROT270, "Taito", "Space Chaser (CV version - set 1)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_COLORS )
GAME( 1979, schaserm, schaser, schaser, schaserm, _8080bw_state, 0, ROT270, "bootleg (Model Racing)", "Space Chaser (Model Racing bootleg)", MACHINE_SUPPORTS_SAVE ) // on original Taito PCB, hacked to be harder?
GAME( 1979, crashrd, schaser, schaser, schaserm, _8080bw_state, 0, ROT270, "bootleg (Centromatic)", "Crash Road (bootleg of Space Chaser)", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND ) // PCB marked 'Imbader'; "Taito Corporation" on title screen replaced with a Spanish phone number
GAME( 1979, crashrd, schaser, crashrd, schaserm, _8080bw_state, 0, ROT270, "bootleg (Centromatic)", "Crash Road (bootleg of Space Chaser)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_SOUND | MACHINE_NO_COCKTAIL ) // PCB marked 'Imbader'; "Taito Corporation" on title screen replaced with a Spanish phone number
GAME( 1979, sflush, 0, sflush, sflush, _8080bw_state, 0, ROT270, "Taito", "Straight Flush", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND | MACHINE_IMPERFECT_COLORS | MACHINE_NO_COCKTAIL)

4
src/mame/includes/8080bw.h
View File

@ -102,6 +102,8 @@ public:
DECLARE_READ8_MEMBER(schasercv_02_r);
DECLARE_WRITE8_MEMBER(schasercv_sh_port_1_w);
DECLARE_WRITE8_MEMBER(schasercv_sh_port_2_w);
DECLARE_WRITE8_MEMBER(crashrd_port03_w);
DECLARE_WRITE8_MEMBER(crashrd_port05_w);
DECLARE_WRITE8_MEMBER(yosakdon_sh_port_1_w);
DECLARE_WRITE8_MEMBER(yosakdon_sh_port_2_w);
DECLARE_READ8_MEMBER(shuttlei_ff_r);
@ -194,6 +196,7 @@ public:
void darthvdr(machine_config &config);
void ballbomb(machine_config &config);
void spacecom(machine_config &config);
void crashrd(machine_config &config);
void schasercv(machine_config &config);
void lupin3(machine_config &config);
void spacerng(machine_config &config);
@ -206,6 +209,7 @@ public:
void cosmicmo_io_map(address_map &map);
void cosmo_io_map(address_map &map);
void cosmo_map(address_map &map);
void crashrd_io_map(address_map &map);
void darthvdr_io_map(address_map &map);
void darthvdr_map(address_map &map);
void escmars_map(address_map &map);