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https://github.com/holub/mame
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atari_s2: sound for superman, hercules, roadrunner.
This commit is contained in:
Robbbert
parent
aa3d8f5cdd
commit
c0b27ba357
@ -8,11 +8,19 @@
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The only difference seems to be an extra bank of inputs (or something) at 2008-200B.
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ToDo:
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- 4x4 not emulated yet, appears to be a different cpu and hardware.
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- sounds to be verified against a real machine
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- noise generator not done yet
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- inputs, outputs, dips vary per machine
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- High score isn't saved or remembered
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*****************************************************************************************/
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#include "machine/genpin.h"
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#include "cpu/m6800/m6800.h"
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#include "sound/dac.h"
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#include "atari_s2.lh"
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@ -20,30 +28,33 @@ class atari_s2_state : public genpin_class
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{
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public:
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atari_s2_state(const machine_config &mconfig, device_type type, const char *tag)
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: genpin_class(mconfig, type, tag),
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m_maincpu(*this, "maincpu")
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: genpin_class(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_dac(*this, "dac")
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{ }
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DECLARE_WRITE8_MEMBER(sound0_w) { };
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DECLARE_WRITE8_MEMBER(sound1_w) { };
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DECLARE_WRITE8_MEMBER(sound0_w);
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DECLARE_WRITE8_MEMBER(sound1_w);
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DECLARE_WRITE8_MEMBER(lamp_w) { };
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DECLARE_WRITE8_MEMBER(sol0_w);
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DECLARE_WRITE8_MEMBER(sol1_w) { };
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DECLARE_WRITE8_MEMBER(intack_w);
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DECLARE_WRITE8_MEMBER(display_w);
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DECLARE_READ8_MEMBER(switch_r);
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TIMER_DEVICE_CALLBACK_MEMBER(irq);
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protected:
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// devices
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required_device<cpu_device> m_maincpu;
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// driver_device overrides
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virtual void machine_reset();
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TIMER_DEVICE_CALLBACK_MEMBER(timer_s);
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private:
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bool m_timer_sb;
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UINT8 m_timer_s[3];
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UINT8 m_sound0;
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UINT8 m_sound1;
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UINT8 m_vol;
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UINT8 m_t_c;
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UINT8 m_segment[7];
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UINT8 *m_p_prom;
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virtual void machine_reset();
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required_device<cpu_device> m_maincpu;
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required_device<dac_device> m_dac;
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};
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@ -337,6 +348,66 @@ READ8_MEMBER( atari_s2_state::switch_r )
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return ioport(kbdrow)->read();
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}
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// Sound
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// 4 frequencies (500k,250k,125k,62.5k) come from main clock circuits
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// We choose one of these with SEL A,B
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// Then presettable 74LS161 binary divider controlled by m_sound0:d4-7
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// Then a 74LS393 to generate 5 address lines
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// The address lines are merged with m_sound0:d0-3 to form a lookup on the prom
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// Output of prom goes to a 4-bit DAC
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// Volume is controlled by m_sound1:d0-3
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// Variables:
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// m_timer_s[0] inc each timer cycle, bit 0 = 500k, bit 1 = 250k, bit 2 = 125k, bit 3 = 62.5k
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// m_timer_s[1] count in 74LS161
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// m_timer_s[2] count in 74LS393
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// m_timer_sb wanted output of m_timer_s[0]
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TIMER_DEVICE_CALLBACK_MEMBER( atari_s2_state::timer_s )
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{
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m_timer_s[0]++;
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bool cs = BIT(m_timer_s[0], (m_sound0 & 0x30) >> 4); // select which frequency to work with by using SEL A,B
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if (cs != m_timer_sb)
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{
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m_timer_sb = cs;
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m_timer_s[1]++;
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if (m_timer_s[1] > 15)
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{
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m_timer_s[1] = m_sound1; // set to preset value
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m_timer_s[2]++;
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offs_t offs = (m_timer_s[2] & 31) | ((m_sound0 & 15) << 5);
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if BIT(m_sound0, 6)
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m_dac->write_unsigned8(m_p_prom[offs]<< 4);
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}
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}
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}
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// d0-3 = sound data to prom
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// d4-5 = select initial clock frequency
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// d6 h = enable wave
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// d7 h = enable noise
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WRITE8_MEMBER( atari_s2_state::sound0_w )
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{
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m_sound0 = data;
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offs_t offs = (m_timer_s[2] & 31) | ((m_sound0 & 15) << 5);
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if BIT(m_sound0, 6)
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m_dac->write_unsigned8(m_p_prom[offs]<< 4);
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}
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// d0-3 = volume
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// d4-7 = preset on 74LS161
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WRITE8_MEMBER( atari_s2_state::sound1_w )
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{
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m_sound1 = data >> 4;
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data &= 15;
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if (data != m_vol)
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{
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m_vol = data;
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float vol = m_vol/16.666+0.1;
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m_dac->set_output_gain(0, vol);
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}
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}
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TIMER_DEVICE_CALLBACK_MEMBER( atari_s2_state::irq )
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{
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if (m_t_c > 0x40)
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@ -347,20 +418,30 @@ TIMER_DEVICE_CALLBACK_MEMBER( atari_s2_state::irq )
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void atari_s2_state::machine_reset()
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{
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m_p_prom = memregion("proms")->base();
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m_vol = 0;
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m_sound0 = 0;
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m_sound1 = 0;
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}
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static MACHINE_CONFIG_START( atari_s2, atari_s2_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", M6800, XTAL_4MHz / 4)
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MCFG_CPU_PROGRAM_MAP(atari_s2_map)
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MCFG_NVRAM_ADD_0FILL("nvram")
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MCFG_TIMER_DRIVER_ADD_PERIODIC("irq", atari_s2_state, irq, attotime::from_hz(XTAL_4MHz / 8192))
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/* Sound */
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MCFG_FRAGMENT_ADD( genpin_audio )
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MCFG_SPEAKER_STANDARD_MONO("mono")
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MCFG_SOUND_ADD("dac", DAC, 0)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
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/* Video */
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MCFG_DEFAULT_LAYOUT(layout_atari_s2)
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MCFG_TIMER_DRIVER_ADD_PERIODIC("irq", atari_s2_state, irq, attotime::from_hz(XTAL_4MHz / 8192))
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MCFG_TIMER_DRIVER_ADD_PERIODIC("timer_s", atari_s2_state, timer_s, attotime::from_hz(150000))
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MACHINE_CONFIG_END
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static MACHINE_CONFIG_DERIVED( atari_s3, atari_s2 )
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@ -378,7 +459,7 @@ ROM_START(supermap)
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ROM_LOAD("atari_m.rom", 0x3000, 0x0800, CRC(1bb6b72c) SHA1(dd24ed54de275aadf8dc0810a6af3ac97aea4026))
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ROM_LOAD("atari_j.rom", 0x3800, 0x0800, CRC(26521779) SHA1(2cf1c66441aee99b9d01859d495c12025b5ef094))
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ROM_REGION(0x1000, "sound1", 0)
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ROM_REGION(0x0200, "proms", 0)
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ROM_LOAD("82s130.bin", 0x0000, 0x0200, CRC(da1f77b4) SHA1(b21fdc1c6f196c320ec5404013d672c35f95890b))
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ROM_END
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@ -391,7 +472,7 @@ ROM_START(hercules)
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ROM_LOAD("atari_m.rom", 0x3000, 0x0800, CRC(1bb6b72c) SHA1(dd24ed54de275aadf8dc0810a6af3ac97aea4026))
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ROM_LOAD("atari_j.rom", 0x3800, 0x0800, CRC(26521779) SHA1(2cf1c66441aee99b9d01859d495c12025b5ef094))
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ROM_REGION(0x1000, "sound1", 0)
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ROM_REGION(0x0200, "proms", 0)
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ROM_LOAD("82s130.bin", 0x0000, 0x0200, CRC(da1f77b4) SHA1(b21fdc1c6f196c320ec5404013d672c35f95890b))
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ROM_END
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@ -404,7 +485,7 @@ ROM_START(roadrunr)
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ROM_LOAD("3000.716", 0x3000, 0x0800, CRC(2fc01359) SHA1(d3df20c764bb68a5316367bb18d34a03293e7fa6))
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ROM_LOAD("3800.716", 0x3800, 0x0800, CRC(77262408) SHA1(3045a732c39c96002f495f64ed752279f7d43ee7))
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ROM_REGION(0x1000, "sound1", 0)
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ROM_REGION(0x0200, "proms", 0)
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ROM_LOAD("82s130.bin", 0x0000, 0x0200, CRC(da1f77b4) SHA1(b21fdc1c6f196c320ec5404013d672c35f95890b))
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ROM_END
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@ -418,11 +499,11 @@ ROM_START(fourx4)
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ROM_LOAD("c000a70c.bin", 0xc000, 0x2000, CRC(c31ca8d3) SHA1(53f20eff0084771dc61d19db7ddae52e4423e75e)) \
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ROM_RELOAD(0xe000, 0x2000)
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ROM_REGION(0x1000, "sound1", 0)
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ROM_REGION(0x0200, "proms", 0)
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ROM_LOAD("82s130.bin", 0x0000, 0x0200, CRC(da1f77b4) SHA1(b21fdc1c6f196c320ec5404013d672c35f95890b))
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ROM_END
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GAME( 1979, supermap, 0, atari_s2, atari_s2, driver_device, 0, ROT0, "Atari", "Superman (Pinball)", GAME_MECHANICAL | GAME_NO_SOUND)
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GAME( 1979, hercules, 0, atari_s2, atari_s2, driver_device, 0, ROT0, "Atari", "Hercules", GAME_MECHANICAL | GAME_NO_SOUND)
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GAME( 1979, roadrunr, 0, atari_s3, atari_s2, driver_device, 0, ROT0, "Atari", "Road Runner", GAME_MECHANICAL | GAME_NO_SOUND)
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GAME( 1982, fourx4, 0, atari_s2, atari_s2, driver_device, 0, ROT0, "Atari", "4x4", GAME_IS_SKELETON_MECHANICAL)
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GAME( 1979, supermap, 0, atari_s2, atari_s2, driver_device, 0, ROT0, "Atari", "Superman (Pinball)", GAME_MECHANICAL | GAME_IMPERFECT_SOUND)
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GAME( 1979, hercules, 0, atari_s2, atari_s2, driver_device, 0, ROT0, "Atari", "Hercules", GAME_MECHANICAL | GAME_IMPERFECT_SOUND)
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GAME( 1979, roadrunr, 0, atari_s3, atari_s2, driver_device, 0, ROT0, "Atari", "Road Runner", GAME_MECHANICAL | GAME_IMPERFECT_SOUND)
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GAME( 1982, fourx4, 0, atari_s3, atari_s2, driver_device, 0, ROT0, "Atari", "4x4", GAME_IS_SKELETON_MECHANICAL)
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@ -472,7 +472,6 @@ WRITE8_MEMBER( hankin_state::ic2_b_w )
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float vol = m_vol/16.666+0.1;
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m_dac->set_output_gain(0, vol);
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}
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}
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// low to divide 555 by 2
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