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m79152pc: Issue a beep (nw)

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This commit is contained in:
AJR 2018-08-31 23:17:49 -04:00
parent cdc0fb684f
commit 0efc0f2dc3
1 changed files with 19 additions and 2 deletions
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21
src/mame/drivers/m79152pc.cpp
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@ -1,5 +1,5 @@
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
// copyright-holders:Miodrag Milanovic,AJR
/***************************************************************************
Mera-Elzab 79152pc
@ -19,9 +19,11 @@
#include "machine/z80ctc.h"
#include "machine/z80sio.h"
#include "machine/clock.h"
#include "sound/beep.h"
#include "bus/rs232/rs232.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
class m79152pc_state : public driver_device
@ -34,11 +36,13 @@ public:
, m_maincpu(*this, "maincpu")
, m_p_chargen(*this, "chargen")
, m_uart(*this, "uart")
, m_beep(*this, "beep")
{ }
void m79152pc(machine_config &config);
private:
DECLARE_WRITE8_MEMBER(beep_w);
DECLARE_WRITE_LINE_MEMBER(latch_full_w);
DECLARE_READ_LINE_MEMBER(mcu_t0_r);
@ -54,10 +58,16 @@ private:
required_device<z80_device> m_maincpu;
required_region_ptr<u8> m_p_chargen;
required_device<z80sio_device> m_uart;
required_device<beep_device> m_beep;
bool m_latch_full;
};
WRITE8_MEMBER(m79152pc_state::beep_w)
{
m_beep->set_state(BIT(offset, 2));
}
WRITE_LINE_MEMBER(m79152pc_state::latch_full_w)
{
m_latch_full = state == ASSERT_LINE;
@ -86,6 +96,7 @@ void m79152pc_state::io_map(address_map &map)
map(0x48, 0x4b).w("pit", FUNC(pit8253_device::write));
map(0x4c, 0x4c).w("mculatch", FUNC(i8212_device::strobe));
map(0x54, 0x57).rw("ppi", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0x58, 0x58).select(4).w(FUNC(m79152pc_state::beep_w));
}
void m79152pc_state::mcu_map(address_map &map)
@ -182,6 +193,8 @@ MACHINE_CONFIG_START(m79152pc_state::m79152pc)
MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 300-1)
MCFG_SCREEN_UPDATE_DRIVER(m79152pc_state, screen_update)
MCFG_SCREEN_PALETTE("palette")
MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE("ctc", z80ctc_device, trg0)) // determines beep duration (probably too slow)
MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_m79152pc)
MCFG_PALETTE_ADD_MONOCHROME("palette")
@ -221,6 +234,10 @@ MACHINE_CONFIG_START(m79152pc_state::m79152pc)
MCFG_DEVICE_ADD("modem", RS232_PORT, default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(WRITELINE(m_uart, z80sio_device, rxb_w))
//MCFG_RS232_CTS_HANDLER(WRITELINE(m_uart, z80sio_device, ctsb_w))
SPEAKER(config, "mono").front_center();
BEEP(config, m_beep, 1000);
m_beep->add_route(ALL_OUTPUTS, "mono", 0.50);
MACHINE_CONFIG_END
/* ROM definition */
@ -238,4 +255,4 @@ ROM_END
/* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( ????, m79152pc, 0, 0, m79152pc, m79152pc, m79152pc_state, empty_init, "Mera-Elzab", "MERA 79152 PC", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
COMP( 198?, m79152pc, 0, 0, m79152pc, m79152pc, m79152pc_state, empty_init, "Mera-Elzab", "MERA 79152 PC", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND)