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beezer: swap ptm/via at mcfg, so via doesn't write to ptm before ptm is reset

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This commit is contained in:
hap 2023-07-22 22:25:02 +02:00
parent 9be8475966
commit b055029659
1 changed files with 11 additions and 8 deletions
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19
src/mame/misc/beezer.cpp
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@ -25,6 +25,7 @@
***************************************************************************/
#include "emu.h"
#include "cpu/m6809/m6809.h"
#include "machine/input_merger.h"
#include "machine/timer.h"
@ -34,6 +35,7 @@
#include "sound/mm5837.h"
#include "sound/dac76.h"
#include "video/resnet.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
@ -98,6 +100,7 @@ public:
void beezer(machine_config &config);
void main_map(address_map &map);
void sound_map(address_map &map);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
@ -505,6 +508,13 @@ void beezer_state::beezer(machine_config &config)
input_merger_device &audio_irqs(INPUT_MERGER_ANY_HIGH(config, "audio_irqs"));
audio_irqs.output_handler().set_inputline(m_audiocpu, M6809_IRQ_LINE);
PTM6840(config, m_ptm, 4_MHz_XTAL / 4);
m_ptm->o1_callback().set(FUNC(beezer_state::ptm_o1_w));
m_ptm->o2_callback().set(FUNC(beezer_state::ptm_o2_w));
m_ptm->o3_callback().set(FUNC(beezer_state::ptm_o3_w));
m_ptm->irq_callback().set("audio_irqs", FUNC(input_merger_device::in_w<0>));
// schematics show an input labeled VCO to channel 2, but the source is unknown
MOS6522(config, m_via_audio, 4_MHz_XTAL / 4);
m_via_audio->readpa_handler().set(FUNC(beezer_state::via_audio_pa_r));
m_via_audio->writepa_handler().set(FUNC(beezer_state::via_audio_pa_w));
@ -512,14 +522,7 @@ void beezer_state::beezer(machine_config &config)
m_via_audio->ca2_handler().set(m_via_system, FUNC(via6522_device::write_cb1));
m_via_audio->cb1_handler().set(FUNC(beezer_state::dmod_clr_w));
m_via_audio->cb2_handler().set(FUNC(beezer_state::dmod_data_w));
m_via_audio->irq_handler().set("audio_irqs", FUNC(input_merger_device::in_w<0>));
PTM6840(config, m_ptm, 4_MHz_XTAL / 4);
m_ptm->o1_callback().set(FUNC(beezer_state::ptm_o1_w));
m_ptm->o2_callback().set(FUNC(beezer_state::ptm_o2_w));
m_ptm->o3_callback().set(FUNC(beezer_state::ptm_o3_w));
m_ptm->irq_callback().set("audio_irqs", FUNC(input_merger_device::in_w<1>));
// schematics show an input labeled VCO to channel 2, but the source is unknown
m_via_audio->irq_handler().set("audio_irqs", FUNC(input_merger_device::in_w<1>));
mm5837_device &noise(MM5837(config, "noise"));
noise.set_vdd(-12);