mirror of
https://github.com/holub/mame
synced 2025-07-01 16:19:38 +03:00
New systems marked not working
------------------------------ Visual 50 [Dirk Best, Bitsavers]
This commit is contained in:
Dirk Best
parent
3b84edd253
commit
a94b5f35d3
@ -287,6 +287,7 @@ const double XTAL::known_xtals[] = {
|
||||
17'010'000, /* 17.01_MHz_XTAL Epic 14E */
|
||||
17'064'000, /* 17.064_MHz_XTAL Memorex 1377 */
|
||||
17'074'800, /* 17.0748_MHz_XTAL SWTPC 8212 */
|
||||
17'320'000, /* 17.320_MHz_XTAL Visual 50 */
|
||||
17'350'000, /* 17.35_MHz_XTAL ITT Courier 1700 */
|
||||
17'360'000, /* 17.36_MHz_XTAL OMTI Series 10 SCSI controller */
|
||||
17'430'000, /* 17.43_MHz_XTAL Videx Videoterm */
|
||||
|
||||
@ -45671,6 +45671,9 @@ v100 //
|
||||
@source:visual/v102.cpp
|
||||
v102 //
|
||||
|
||||
@source:visual/v50.cpp
|
||||
visual50 // (c) 1983 Visual Technology
|
||||
|
||||
@source:visual/v550.cpp
|
||||
v550 //
|
||||
|
||||
|
||||
264
src/mame/visual/v50.cpp
Normal file
264
src/mame/visual/v50.cpp
Normal file
@ -0,0 +1,264 @@
|
||||
// license: BSD-3-Clause
|
||||
// copyright-holders: Dirk Best
|
||||
/***************************************************************************
|
||||
|
||||
Visual Technology Visual 50/55
|
||||
|
||||
VT52 compatible terminal
|
||||
|
||||
Hardware:
|
||||
- D780C (Z80)
|
||||
- 2764 and 2732 EPROM
|
||||
- 2x TMM314APL-1 (1k RAM)
|
||||
- X2210D NOVRAM (64x4)
|
||||
- Intel P8253-5 PIT
|
||||
- D8255AC-5 PPI
|
||||
- 2x D8251AC USART
|
||||
- SCN2672A
|
||||
- 2673
|
||||
- TMM2016P-2 (2k VRAM)
|
||||
- C68100 IC240-001R00 (character generator?)
|
||||
- 17.320 MHz XTAL
|
||||
|
||||
TODO:
|
||||
- Character generator ROM is undumped
|
||||
- Keyboard (also not dumped)
|
||||
- Screen rendering
|
||||
- Screen brightness control
|
||||
- PPI connections are unknown
|
||||
- AUX port
|
||||
|
||||
Notes:
|
||||
- PCB marked "PA015 REV B 1183"
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include "emu.h"
|
||||
|
||||
#include "bus/rs232/rs232.h"
|
||||
#include "cpu/z80/z80.h"
|
||||
#include "machine/i8251.h"
|
||||
#include "machine/i8255.h"
|
||||
#include "machine/input_merger.h"
|
||||
#include "machine/pit8253.h"
|
||||
#include "machine/x2212.h"
|
||||
#include "video/scn2674.h"
|
||||
|
||||
#include "screen.h"
|
||||
|
||||
|
||||
namespace {
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
class visual50_state : public driver_device
|
||||
{
|
||||
public:
|
||||
visual50_state(const machine_config &mconfig, device_type type, const char *tag) :
|
||||
driver_device(mconfig, type, tag),
|
||||
m_maincpu(*this, "maincpu"),
|
||||
m_novram(*this, "novram"),
|
||||
m_pit(*this, "pit"),
|
||||
m_screen(*this, "screen"),
|
||||
m_pvtc(*this, "pvtc"),
|
||||
m_usart(*this, "usart%u", 0U)
|
||||
{ }
|
||||
|
||||
void visual50(machine_config &config);
|
||||
|
||||
protected:
|
||||
virtual void machine_start() override;
|
||||
virtual void machine_reset() override;
|
||||
|
||||
private:
|
||||
required_device<z80_device> m_maincpu;
|
||||
required_device<x2210_device> m_novram;
|
||||
required_device<pit8253_device> m_pit;
|
||||
required_device<screen_device> m_screen;
|
||||
required_device<scn2672_device> m_pvtc;
|
||||
required_device_array<i8251_device, 2> m_usart;
|
||||
|
||||
void mem_map(address_map &map);
|
||||
void io_map(address_map &map);
|
||||
void char_map(address_map &map);
|
||||
|
||||
SCN2672_DRAW_CHARACTER_MEMBER(draw_character);
|
||||
|
||||
uint8_t recall_r();
|
||||
void recall_w(uint8_t data);
|
||||
uint8_t store_r();
|
||||
void store_w(uint8_t data);
|
||||
};
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// ADDRESS MAPS
|
||||
//**************************************************************************
|
||||
|
||||
void visual50_state::mem_map(address_map &map)
|
||||
{
|
||||
map(0x0000, 0x2fff).rom().region("maincpu", 0);
|
||||
map(0x8000, 0x83ff).ram();
|
||||
map(0xa000, 0xa03f).rw(m_novram, FUNC(x2210_device::read), FUNC(x2210_device::write));
|
||||
map(0xc000, 0xc000).rw(FUNC(visual50_state::recall_r), FUNC(visual50_state::recall_w));
|
||||
map(0xe000, 0xe000).rw(FUNC(visual50_state::store_r), FUNC(visual50_state::store_w));
|
||||
}
|
||||
|
||||
void visual50_state::io_map(address_map &map)
|
||||
{
|
||||
map.global_mask(0xff);
|
||||
map(0x00, 0x07).rw(m_pvtc, FUNC(scn2672_device::read), FUNC(scn2672_device::write));
|
||||
map(0x10, 0x11).rw(m_usart[0], FUNC(i8251_device::read), FUNC(i8251_device::write));
|
||||
map(0x20, 0x21).rw(m_usart[1], FUNC(i8251_device::read), FUNC(i8251_device::write));
|
||||
map(0x40, 0x40).r(m_pvtc, FUNC(scn2672_device::buffer_r));
|
||||
map(0x50, 0x50).w(m_pvtc, FUNC(scn2672_device::buffer_w));
|
||||
map(0x60, 0x63).rw("ppi", FUNC(i8255_device::read), FUNC(i8255_device::write));
|
||||
map(0x70, 0x73).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write));
|
||||
}
|
||||
|
||||
void visual50_state::char_map(address_map &map)
|
||||
{
|
||||
map(0x000, 0x7ff).ram();
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// INPUT PORT DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
static INPUT_PORTS_START( visual50 )
|
||||
INPUT_PORTS_END
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// VIDEO EMULATION
|
||||
//**************************************************************************
|
||||
|
||||
SCN2672_DRAW_CHARACTER_MEMBER( visual50_state::draw_character )
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// MACHINE EMULATION
|
||||
//**************************************************************************
|
||||
|
||||
uint8_t visual50_state::recall_r()
|
||||
{
|
||||
if (!machine().side_effects_disabled())
|
||||
{
|
||||
m_novram->recall(1);
|
||||
m_novram->recall(0);
|
||||
}
|
||||
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
void visual50_state::recall_w(uint8_t data)
|
||||
{
|
||||
m_novram->recall(1);
|
||||
m_novram->recall(0);
|
||||
}
|
||||
|
||||
uint8_t visual50_state::store_r()
|
||||
{
|
||||
if (!machine().side_effects_disabled())
|
||||
{
|
||||
m_novram->store(1);
|
||||
m_novram->store(0);
|
||||
}
|
||||
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
void visual50_state::store_w(uint8_t data)
|
||||
{
|
||||
m_novram->store(1);
|
||||
m_novram->store(0);
|
||||
}
|
||||
|
||||
void visual50_state::machine_start()
|
||||
{
|
||||
}
|
||||
|
||||
void visual50_state::machine_reset()
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// MACHINE DEFINTIONS
|
||||
//**************************************************************************
|
||||
|
||||
void visual50_state::visual50(machine_config &config)
|
||||
{
|
||||
Z80(config, m_maincpu, 17.320_MHz_XTAL / 8); // divider not verified
|
||||
m_maincpu->set_addrmap(AS_PROGRAM, &visual50_state::mem_map);
|
||||
m_maincpu->set_addrmap(AS_IO, &visual50_state::io_map);
|
||||
|
||||
INPUT_MERGER_ANY_HIGH(config, "mainirq").output_handler().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
|
||||
|
||||
X2210(config, m_novram);
|
||||
|
||||
PIT8253(config, m_pit, 0);
|
||||
m_pit->set_clk<0>(17.320_MHz_XTAL / 8);
|
||||
m_pit->set_clk<1>(17.320_MHz_XTAL / 8);
|
||||
m_pit->set_clk<2>(17.320_MHz_XTAL / 8);
|
||||
m_pit->out_handler<0>().set(m_usart[0], FUNC(i8251_device::write_rxc)); // or txc?
|
||||
m_pit->out_handler<1>().set(m_usart[1], FUNC(i8251_device::write_rxc));
|
||||
m_pit->out_handler<1>().append(m_usart[1], FUNC(i8251_device::write_txc));
|
||||
m_pit->out_handler<2>().set(m_usart[0], FUNC(i8251_device::write_txc)); // or rxc?
|
||||
|
||||
I8255(config, "ppi");
|
||||
|
||||
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
|
||||
m_screen->set_color(rgb_t::amber()); // unknown color
|
||||
m_screen->set_raw(17.320_MHz_XTAL, 900, 0, 720, 321, 0, 300);
|
||||
m_screen->set_screen_update(m_pvtc, FUNC(scn2672_device::screen_update));
|
||||
|
||||
SCN2672(config, m_pvtc, 17.320_MHz_XTAL / 9);
|
||||
m_pvtc->intr_callback().set_inputline(m_maincpu, INPUT_LINE_NMI);
|
||||
m_pvtc->set_screen("screen");
|
||||
m_pvtc->set_character_width(9);
|
||||
m_pvtc->set_display_callback(FUNC(visual50_state::draw_character));
|
||||
m_pvtc->set_addrmap(0, &visual50_state::char_map);
|
||||
|
||||
// mainport
|
||||
I8251(config, m_usart[0], 17.320_MHz_XTAL / 8); // divider not verified
|
||||
m_usart[0]->rxrdy_handler().set("mainirq", FUNC(input_merger_device::in_w<0>));
|
||||
m_usart[0]->txd_handler().set("mainport", FUNC(rs232_port_device::write_txd));
|
||||
m_usart[0]->rts_handler().set("mainport", FUNC(rs232_port_device::write_rts));
|
||||
|
||||
rs232_port_device &mainport(RS232_PORT(config, "mainport", default_rs232_devices, nullptr));
|
||||
mainport.rxd_handler().set(m_usart[0], FUNC(i8251_device::write_rxd));
|
||||
mainport.cts_handler().set(m_usart[0], FUNC(i8251_device::write_cts));
|
||||
|
||||
// keyboard
|
||||
I8251(config, m_usart[1], 17.320_MHz_XTAL / 8); // divider not verified
|
||||
m_usart[1]->rxrdy_handler().set("mainirq", FUNC(input_merger_device::in_w<1>));
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// ROM DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
ROM_START( visual50 )
|
||||
ROM_REGION(0x3000, "maincpu", 0)
|
||||
ROM_LOAD("e244-012.bin", 0x0000, 0x2000, CRC(755f0722) SHA1(80b90882c52c9ddcc1cf455c9195d4e1ccda8ce8))
|
||||
ROM_LOAD("e262-055.bin", 0x2000, 0x1000, CRC(90a142e8) SHA1(5f4c403b7ab09dcb3cfdc8f57f65e0a52992feed))
|
||||
ROM_END
|
||||
|
||||
|
||||
} // anonymous namespace
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// SYSTEM DRIVERS
|
||||
//**************************************************************************
|
||||
|
||||
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
|
||||
COMP( 1983, visual50, 0, 0, visual50, visual50, visual50_state, empty_init, "Visual Technology", "Visual 50", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
|
||||
Loading…
Reference in New Issue
Block a user