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pipeline: Hook up sound communications and YM2203; fix sound PPI mapping

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This commit is contained in:
AJR 2021-09-06 09:36:01 -04:00
parent 986a98c51d
commit f474673bc5
1 changed files with 46 additions and 13 deletions
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59
src/mame/drivers/pipeline.cpp
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@ -89,10 +89,14 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_mcu(*this, "mcu")
, m_ctc(*this, "ctc")
, m_gfxdecode(*this, "gfxdecode")
, m_palette(*this, "palette")
, m_vram1(*this, "vram1")
, m_vram2(*this, "vram2")
, m_vidctrl(0)
, m_from_mcu(0)
, m_sound_data(0)
{
}
@ -109,6 +113,8 @@ private:
void vidctrl_w(uint8_t data);
uint8_t protection_r();
void protection_w(uint8_t data);
uint8_t sound_data_r();
void sound_data_w(uint8_t data);
TILE_GET_INFO_MEMBER(get_tile_info);
TILE_GET_INFO_MEMBER(get_tile_info2);
@ -117,6 +123,7 @@ private:
u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_CALLBACK_MEMBER(vidctrl_deferred_w);
TIMER_CALLBACK_MEMBER(protection_deferred_w);
void cpu0_mem(address_map &map);
@ -125,6 +132,7 @@ private:
required_device<cpu_device> m_maincpu;
required_device<m68705r_device> m_mcu;
required_device<z80ctc_device> m_ctc;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
@ -137,12 +145,16 @@ private:
u8 m_vidctrl;
std::unique_ptr<u8[]> m_palram;
u8 m_from_mcu;
u8 m_sound_data;
};
void pipeline_state::machine_start()
{
membank("soundbank")->configure_entries(0, 2, memregion("audiocpu")->base() + 0x8000, 0x4000);
save_item(NAME(m_from_mcu));
save_item(NAME(m_sound_data));
}
TILE_GET_INFO_MEMBER(pipeline_state::get_tile_info)
@ -179,7 +191,14 @@ u32 pipeline_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, c
void pipeline_state::vidctrl_w(uint8_t data)
{
m_vidctrl = data;
// synchronization is needed to avoid spurious CTC interrupts
machine().scheduler().synchronize(timer_expired_delegate(FUNC(pipeline_state::vidctrl_deferred_w),this), data);
}
TIMER_CALLBACK_MEMBER(pipeline_state::vidctrl_deferred_w)
{
m_vidctrl = u8(param);
m_ctc->trg2(BIT(param, 1));
}
void pipeline_state::vram2_w(offs_t offset, uint8_t data)
@ -222,6 +241,16 @@ void pipeline_state::protection_w(uint8_t data)
machine().scheduler().boost_interleave(attotime::zero, attotime::from_usec(100));
}
uint8_t pipeline_state::sound_data_r()
{
return m_sound_data;
}
void pipeline_state::sound_data_w(uint8_t data)
{
m_sound_data = data;
}
void pipeline_state::cpu0_mem(address_map &map)
{
map(0x0000, 0x7fff).rom();
@ -237,15 +266,16 @@ void pipeline_state::cpu0_mem(address_map &map)
void pipeline_state::cpu1_mem(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0xbfff).bankr("soundbank");
map(0xc000, 0xc7ff).ram();
map(0xe000, 0xe003).rw("ppi8255_2", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0xe000, 0xe001).mirror(2).rw("ymsnd", FUNC(ym2203_device::read), FUNC(ym2203_device::write));
}
void pipeline_state::sound_port(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x03).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
map(0x06, 0x07).noprw();
map(0x00, 0x03).rw(m_ctc, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
map(0x04, 0x07).rw("ppi8255_2", FUNC(i8255_device::read), FUNC(i8255_device::write));
}
void pipeline_state::mcu_porta_w(uint8_t data)
@ -355,23 +385,24 @@ void pipeline_state::pipeline_palette(palette_device &palette) const
void pipeline_state::pipeline(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, 7372800/2);
Z80(config, m_maincpu, 7.3728_MHz_XTAL / 2);
m_maincpu->set_addrmap(AS_PROGRAM, &pipeline_state::cpu0_mem);
z80_device& audiocpu(Z80(config, "audiocpu", 7372800/2));
z80_device& audiocpu(Z80(config, "audiocpu", 7.3728_MHz_XTAL / 2));
audiocpu.set_daisy_config(daisy_chain_sound);
audiocpu.set_addrmap(AS_PROGRAM, &pipeline_state::cpu1_mem);
audiocpu.set_addrmap(AS_IO, &pipeline_state::sound_port);
M68705R3(config, m_mcu, 7372800/2);
M68705R3(config, m_mcu, 7.3728_MHz_XTAL / 2);
m_mcu->porta_w().set(FUNC(pipeline_state::mcu_porta_w));
z80ctc_device& ctc(Z80CTC(config, "ctc", 7372800/2 /* same as "audiocpu" */));
ctc.intr_callback().set_inputline("audiocpu", INPUT_LINE_IRQ0);
Z80CTC(config, m_ctc, 7.3728_MHz_XTAL / 2 /* same as "audiocpu" */);
// TODO: external clock needed for channel 1 (DAC-related)?
m_ctc->intr_callback().set_inputline("audiocpu", INPUT_LINE_IRQ0);
i8255_device &ppi0(I8255A(config, "ppi8255_0"));
ppi0.in_pa_callback().set_ioport("P1");
// PORT B Write - related to sound/music : check code at 0x1c0a
ppi0.out_pb_callback().set(FUNC(pipeline_state::sound_data_w)); // related to sound/music : check code at 0x1c0a
ppi0.out_pc_callback().set(FUNC(pipeline_state::vidctrl_w));
i8255_device &ppi1(I8255A(config, "ppi8255_1"));
@ -380,7 +411,9 @@ void pipeline_state::pipeline(machine_config &config)
ppi1.in_pc_callback().set(FUNC(pipeline_state::protection_r));
ppi1.out_pc_callback().set(FUNC(pipeline_state::protection_w));
I8255A(config, "ppi8255_2", 0);
i8255_device &ppi2(I8255A(config, "ppi8255_2"));
ppi2.in_pb_callback().set(FUNC(pipeline_state::sound_data_r));
ppi2.out_pc_callback().set_membank("soundbank").bit(7);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
@ -397,7 +430,7 @@ void pipeline_state::pipeline(machine_config &config)
/* audio hardware */
SPEAKER(config, "mono").front_center();
YM2203(config, "ymsnd", 7372800/4).add_route(ALL_OUTPUTS, "mono", 0.60);
YM2203(config, "ymsnd", 7.3728_MHz_XTAL / 4).add_route(ALL_OUTPUTS, "mono", 0.30);
}
@ -432,4 +465,4 @@ ROM_START( pipeline )
ROM_LOAD( "82s123.u79", 0x00200, 0x00020,CRC(6df3f972) SHA1(0096a7f7452b70cac6c0752cb62e24b643015b5c) )
ROM_END
GAME( 1990, pipeline, 0, pipeline, pipeline, pipeline_state, empty_init, ROT0, "Daehyun Electronics", "Pipeline", MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1990, pipeline, 0, pipeline, pipeline, pipeline_state, empty_init, ROT0, "Daehyun Electronics", "Pipeline", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )