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apple2: Phasor only goes to double clock when native mode is enabled. [R. Belmont]

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This commit is contained in:
arbee 2020-10-04 17:14:27 -04:00
parent 98747ee592
commit 32a0c008d8
2 changed files with 24 additions and 4 deletions
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26
src/devices/bus/a2bus/a2mockingboard.cpp
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@ -89,10 +89,9 @@ void a2bus_phasor_device::device_add_mconfig(machine_config &config)
SPEAKER(config, "lspeaker2").front_left();
SPEAKER(config, "rspeaker2").front_right();
m_ay1->set_clock(1022727*2);
AY8913(config, m_ay2, 1022727*2);
AY8913(config, m_ay3, 1022727*2);
AY8913(config, m_ay4, 1022727*2);
AY8913(config, m_ay2, 1022727);
AY8913(config, m_ay3, 1022727);
AY8913(config, m_ay4, 1022727);
m_ay2->add_route(ALL_OUTPUTS, "lspeaker2", 0.5);
m_ay3->add_route(ALL_OUTPUTS, "rspeaker", 0.5);
m_ay4->add_route(ALL_OUTPUTS, "rspeaker2", 0.5);
@ -415,16 +414,35 @@ void a2bus_phasor_device::via2_out_b(uint8_t data)
}
}
void a2bus_phasor_device::set_clocks()
{
if (m_native)
{
m_ay1->set_clock(1022727*2);
m_ay2->set_clock(1022727*2);
m_ay3->set_clock(1022727*2);
m_ay4->set_clock(1022727*2);
}
else
{
m_ay1->set_clock(1022727);
m_ay2->set_clock(1022727);
m_ay3->set_clock(1022727);
m_ay4->set_clock(1022727);
}
}
uint8_t a2bus_phasor_device::read_c0nx(uint8_t offset)
{
m_native = BIT(offset, 0);
set_clocks();
return 0xff;
}
void a2bus_phasor_device::write_c0nx(uint8_t offset, uint8_t data)
{
m_native = BIT(offset, 0);
set_clocks();
}
uint8_t a2bus_echoplus_device::read_c0nx(uint8_t offset)

2
src/devices/bus/a2bus/a2mockingboard.h
View File

@ -97,6 +97,8 @@ protected:
required_device<ay8913_device> m_ay4;
private:
void set_clocks();
bool m_native;
};