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in207376: Add beeper

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This commit is contained in:
Dirk Best 2020-09-10 17:42:26 +02:00
parent 773bed8afd
commit 4e8de5cff0
1 changed files with 21 additions and 2 deletions
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23
src/mame/drivers/informer_207_376.cpp
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@ -35,11 +35,13 @@
#include "machine/nvram.h"
#include "machine/z80scc.h"
#include "video/mc6845.h"
#include "sound/beep.h"
#include "bus/rs232/rs232.h"
#include "bus/rs232/printer.h"
#include "machine/informer_207_376_kbd.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
//**************************************************************************
@ -57,6 +59,7 @@ public:
m_palette(*this, "palette"),
m_scc(*this, "scc"),
m_acia(*this, "acia%u", 0U),
m_beep(*this, "beep"),
m_ram(*this, "ram"),
m_chargen(*this, "chargen"),
m_nmi_enabled(false)
@ -75,6 +78,7 @@ private:
required_device<palette_device> m_palette;
required_device<scc85c30_device> m_scc;
required_device_array<acia6850_device, 2> m_acia;
required_device<beep_device> m_beep;
required_shared_ptr<uint8_t> m_ram;
required_region_ptr<uint8_t> m_chargen;
@ -84,6 +88,7 @@ private:
void vsync_w(int state);
void nmi_control_w(uint8_t data);
void unk_8400_w(uint8_t data);
bool m_nmi_enabled;
};
@ -98,7 +103,7 @@ void informer_207_376_state::mem_map(address_map &map)
map(0x0000, 0x7fff).ram().share("ram");
map(0x8000, 0x8000).rw(m_crtc, FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w));
map(0x8001, 0x8001).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0x8400, 0x8400).lr8(NAME([] () { return 0xff; })).nopw(); // ?
map(0x8400, 0x8400).lr8(NAME([] () { return 0xff; })).w(FUNC(informer_207_376_state::unk_8400_w)); // ?
map(0x8802, 0x8803).rw(m_acia[0], FUNC(acia6850_device::read), FUNC(acia6850_device::write));
map(0x8804, 0x8805).rw(m_acia[1], FUNC(acia6850_device::read), FUNC(acia6850_device::write));
map(0x8c00, 0x8c00).w(FUNC(informer_207_376_state::nmi_control_w));
@ -182,6 +187,16 @@ void informer_207_376_state::nmi_control_w(uint8_t data)
m_nmi_enabled = bool(data & 0x06);
}
void informer_207_376_state::unk_8400_w(uint8_t data)
{
// 7------- beeper
// -6------ unknown
// --5----- 1=internal modem, 0=host rs232
// ---43210 unknown
m_beep->set_state(BIT(data, 7));
}
void informer_207_376_state::machine_start()
{
// register for save states
@ -266,6 +281,10 @@ void informer_207_376_state::informer_207_376(machine_config &config)
m_crtc->set_char_width(8);
m_crtc->set_update_row_callback(FUNC(informer_207_376_state::crtc_update_row));
m_crtc->out_vsync_callback().set(FUNC(informer_207_376_state::vsync_w));
// sound
SPEAKER(config, "mono").front_center();
BEEP(config, "beep", 500).add_route(ALL_OUTPUTS, "mono", 0.50); // frequency unknown
}
@ -294,4 +313,4 @@ ROM_END
//**************************************************************************
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1986, in207376, 0, 0, informer_207_376, informer_207_376, informer_207_376_state, empty_init, "Informer", "Informer 207/376", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
COMP( 1986, in207376, 0, 0, informer_207_376, informer_207_376, informer_207_376_state, empty_init, "Informer", "Informer 207/376", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )