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qvt70: Add some meat to the bones

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This commit is contained in:
Dirk Best 2019-06-21 16:07:25 +02:00
parent ae817db15f
commit d4dc364fbe
1 changed files with 106 additions and 16 deletions
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122
src/mame/drivers/qvt70.cpp
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@ -1,13 +1,35 @@
// license:BSD-3-Clause
// copyright-holders:
/***********************************************************************************************************************************
// copyright-holders: Dirk Best
/****************************************************************************
Skeleton driver for Qume QVT-70 terminal.
Qume QVT-70 terminal
************************************************************************************************************************************/
Hardware:
- Z80 (Z8040008VSC)
- Z80 DART (Z0847006PSC)
- QUME 303489-01 QFP144
- DTC 801000-02 QFP100
- ROM 128k + 64k
- CXK5864CM-70LL (8k, next to ROMs)
- W242575-70LL (32k) + 5x CXK5864CM-70LL (8k)
- DS1231
- Beeper + Battery
- XTAL unreadable
Features:
- 65 hz with 16x16 characters
- 78 hz with 16x13 characters
- 64 background/foreground colors
- 80/132 columns
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/bankdev.h"
#include "machine/z80dart.h"
#include "bus/centronics/ctronics.h"
#include "bus/rs232/rs232.h"
class qvt70_state : public driver_device
{
@ -15,41 +37,109 @@ public:
qvt70_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_bank(*this, "bank")
{ }
void qvt70(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
void mem_map(address_map &map);
required_device<cpu_device> m_maincpu;
required_device<address_map_bank_device> m_bank;
void mem_map(address_map &map);
void bank_map(address_map &map);
void io_map(address_map &map);
DECLARE_WRITE8_MEMBER(bankswitch_w);
};
void qvt70_state::mem_map(address_map &map)
{
map(0x0000, 0xffff).rom().region("maincpu", 0);
map(0x0000, 0x7fff).m(m_bank, FUNC(address_map_bank_device::amap8));
map(0x8000, 0x8000).w(FUNC(qvt70_state::bankswitch_w));
map(0xa000, 0xbfff).ram();
// map(0xc000, 0xffff).ram();
}
void qvt70_state::bank_map(address_map &map)
{
map(0x00000, 0x07fff).rom().region("maincpu", 0x00000);
map(0x08000, 0x0ffff).rom().region("maincpu", 0x08000);
map(0x10000, 0x17fff).rom().region("maincpu", 0x10000);
map(0x18000, 0x1ffff).rom().region("maincpu", 0x18000);
map(0x20000, 0x27fff).rom().region("maincpu", 0x20000);
map(0x28000, 0x2ffff).rom().region("maincpu", 0x28000);
map(0x30000, 0x37fff).ram();
// map(0x38000, 0x3ffff)
}
void qvt70_state::io_map(address_map &map)
{
map.global_mask(0xff);
// 07-54
// 60-6f
map(0x80, 0x83).rw("dart", FUNC(z80dart_device::ba_cd_r), FUNC(z80dart_device::ba_cd_w));
}
static INPUT_PORTS_START( qvt70 )
INPUT_PORTS_END
void qvt70_state::qvt70(machine_config &config)
WRITE8_MEMBER(qvt70_state::bankswitch_w)
{
Z80(config, m_maincpu, 2'000'000);
m_maincpu->set_addrmap(AS_PROGRAM, &qvt70_state::mem_map);
logerror("bankswitch_w: %02x\n", data);
// 765----- unknown
// ---43--- bankswitching?
// -----21- unknown
// -------0 bankswitching?
// likely wrong
int bank = ((data >> 2) & 0x06) | BIT(data, 0);
logerror("bank = %02x\n", bank);
if (bank < 6)
m_bank->set_bank(bank);
}
/**************************************************************************************************************
void qvt70_state::machine_start()
{
}
Qume QVT-70.
Chips: Z80, Z80 DART, 5x CXK5864CM-70LL/W242575-70LL, 801000-02, 303489-01, DS1231, Button battery, Beeper
Crystals: unreadable
void qvt70_state::machine_reset()
{
}
***************************************************************************************************************/
void qvt70_state::qvt70(machine_config &config)
{
Z80(config, m_maincpu, 8'000'000);
m_maincpu->set_addrmap(AS_PROGRAM, &qvt70_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &qvt70_state::io_map);
ADDRESS_MAP_BANK(config, m_bank);
m_bank->set_map(&qvt70_state::bank_map);
m_bank->set_data_width(8);
m_bank->set_addr_width(18);
m_bank->set_stride(0x8000);
Z80DART(config, "dart", 4'000'000);
// 25-pin (dcd, rxd, txd, dtr, dsr, rts, cts and current loop)
RS232_PORT(config, "serial1", default_rs232_devices, nullptr);
// 9-pin (dcd, rxd, txd, dtr, dsr, rts, cts)
RS232_PORT(config, "serial2", default_rs232_devices, nullptr);
CENTRONICS(config, "parallel", centronics_devices, nullptr);
}
ROM_START( qvt70 )
ROM_REGION(0x30000, "maincpu", 0)
ROM_LOAD( "251513-04_revj.u12", 0x00000, 0x10000, CRC(3960bbd5) SHA1(9db306cef09be21ff43c081ebe11e9b46f617861) )
ROM_LOAD( "251513-03_revj.u11", 0x10000, 0x20000, CRC(c56796fe) SHA1(afe024ff93d5e75dc18041219d61e1a22fc6d883) )
ROM_LOAD( "251513-03_revj.u11", 0x00000, 0x20000, CRC(c56796fe) SHA1(afe024ff93d5e75dc18041219d61e1a22fc6d883) ) // 251513-03 C/S:D1DA 95' REV.J (checksum matches)
ROM_LOAD( "251513-04_revj.u12", 0x20000, 0x10000, CRC(3960bbd5) SHA1(9db306cef09be21ff43c081ebe11e9b46f617861) ) // 251513-04 C/S:18D0 95' REV.J (checksum matches)
ROM_END
COMP( 1992, qvt70, 0, 0, qvt70, qvt70, qvt70_state, empty_init, "Qume", "QVT-70", MACHINE_IS_SKELETON )