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idsa.cpp: Add PPIs (nw)

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This commit is contained in:
AJR 2017-11-18 12:41:43 -05:00
parent 74874b7c0e
commit ed7ef7d1b2
1 changed files with 19 additions and 1 deletions
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20
src/mame/drivers/idsa.cpp
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@ -32,6 +32,7 @@ ToDO:
#include "sound/ay8910.h"
#include "sound/sp0256.h"
#include "machine/clock.h"
#include "machine/i8255.h"
#include "speaker.h"
@ -42,6 +43,7 @@ public:
: genpin_class(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_speech(*this, "speech")
, m_ppi(*this, "ppi%u", 1)
{ }
DECLARE_WRITE_LINE_MEMBER(clock_w);
@ -54,10 +56,13 @@ public:
DECLARE_WRITE8_MEMBER(ay2_b_w);
private:
uint16_t m_irqcnt;
virtual void machine_reset() override;
uint16_t m_irqcnt;
uint8_t m_ppi_data;
required_device<cpu_device> m_maincpu;
required_device<sp0256_device> m_speech;
required_device_array<i8255_device, 2> m_ppi;
};
static ADDRESS_MAP_START( maincpu_map, AS_PROGRAM, 8, idsa_state )
@ -228,18 +233,26 @@ WRITE8_MEMBER( idsa_state::port90_w )
// AY ports are for lamps and solenoids
WRITE8_MEMBER( idsa_state::ay1_a_w )
{
//logerror("%s: AY1 port A = %02X\n", machine().describe_context(), data);
if (!BIT(data, 2))
m_ppi[0]->write(space, data & 0x03, m_ppi_data);
if (!BIT(data, 3))
m_ppi[1]->write(space, data & 0x03, m_ppi_data);
}
WRITE8_MEMBER( idsa_state::ay1_b_w )
{
m_ppi_data = data;
}
WRITE8_MEMBER( idsa_state::ay2_a_w )
{
//logerror("%s: AY2 port A = %02X\n", machine().describe_context(), data);
}
WRITE8_MEMBER( idsa_state::ay2_b_w )
{
//logerror("%s: AY2 port B = %02X\n", machine().describe_context(), data);
}
WRITE_LINE_MEMBER( idsa_state::clock_w )
@ -280,14 +293,19 @@ static MACHINE_CONFIG_START( idsa )
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_SOUND_ADD("speech", SP0256, 3120000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.5)
MCFG_SOUND_ADD("aysnd1", AY8910, 2000000) // 2Mhz according to pinmame, schematic omits the clock line
MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(idsa_state, ay1_a_w))
MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(idsa_state, ay1_b_w))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.75)
MCFG_SOUND_ADD("aysnd2", AY8910, 2000000)
MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(idsa_state, ay2_a_w))
MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(idsa_state, ay2_b_w))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.75)
MCFG_DEVICE_ADD("ppi1", I8255, 0)
MCFG_DEVICE_ADD("ppi2", I8255, 0)
MACHINE_CONFIG_END