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ACT Apricot XEN [John Elliott]
This commit is contained in:
Dirk Best 2021-07-27 09:05:07 +02:00
parent 6ee768c205
commit 063928663c
4 changed files with 219 additions and 0 deletions
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1
scripts/target/mame/mess.lua
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@ -1676,6 +1676,7 @@ files {
MAME_DIR .. "src/mame/drivers/apricot.cpp",
MAME_DIR .. "src/mame/drivers/apricotf.cpp",
MAME_DIR .. "src/mame/drivers/apricotp.cpp",
MAME_DIR .. "src/mame/drivers/apxen.cpp",
MAME_DIR .. "src/mame/machine/apricotkb.cpp",
MAME_DIR .. "src/mame/machine/apricotkb.h",
MAME_DIR .. "src/mame/drivers/victor9k.cpp",

214
src/mame/drivers/apxen.cpp Normal file
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@ -0,0 +1,214 @@
// license: BSD-3-Clause
// copyright-holders: Dirk Best
/***************************************************************************
ACT Apricot XEN
Codename "Candyfloss". The system is not IBM compatible but can run
MS-DOS (and Windows) as well as Xenix.
Models:
- XEN FD (512 KB RAM, 2x 720 KB floppy)
- XEN HD (1 MB RAM, 1x 720 KB or 1.2 MB floppy, 20M HDD)
- XEN WS (1 MB RAM, no drives)
TODO:
- Everything
Notes:
- Two graphics cards: Mono and colour boards
***************************************************************************/
#include "emu.h"
#include "cpu/i86/i286.h"
#include "machine/pic8259.h"
#include "machine/wd_fdc.h"
#include "machine/z80sio.h"
#include "video/mc6845.h"
#include "imagedev/floppy.h"
#include "formats/apridisk.h"
#include "emupal.h"
#include "screen.h"
namespace {
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class apxen_state : public driver_device
{
public:
apxen_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_pic(*this, "pic%u", 0U),
m_crtc(*this, "crtc"),
m_mono_palette(*this, "mono_palette")
{ }
void apxen(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
required_device<i80286_cpu_device> m_maincpu;
required_device_array<pic8259_device, 2> m_pic;
required_device<hd6845s_device> m_crtc;
required_device<palette_device> m_mono_palette;
void mem_map(address_map &map);
void io_map(address_map &map);
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
MC6845_UPDATE_ROW(crtc_update_row);
uint8_t get_slave_ack(offs_t offset);
};
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
void apxen_state::mem_map(address_map &map)
{
map(0x000000, 0x07ffff).ram();
map(0x0f0000, 0x0fffff).rom().region("bios", 0);
map(0xff0000, 0xffffff).rom().region("bios", 0);
}
void apxen_state::io_map(address_map &map)
{
map(0x068, 0x068).w(m_crtc, FUNC(hd6845s_device::address_w));
map(0x06a, 0x06a).rw(m_crtc, FUNC(hd6845s_device::register_r), FUNC(hd6845s_device::register_w));
// map(0xc00, 0xc00) leds
// map(0xc20, 0xc20) printer
// map(0xc30, 0xc31) SN76489
// map(0xc40, 0xc47) CIO
// map(0xc50, 0xc57) SIO
// map(0xc60, 0xc6f) MM5827 RTC
// map(0xc80, 0xc87) FDC
// map(0xc90, 0xc93) uPD7261 HDC
map(0xca0, 0xca3).rw(m_pic[0], FUNC(pic8259_device::read), FUNC(pic8259_device::write)).umask16(0x00ff);
map(0xca4, 0xca7).rw(m_pic[1], FUNC(pic8259_device::read), FUNC(pic8259_device::write)).umask16(0x00ff);
// map(0xcb0, 0xcb7) PIT
// map(0xcc0, 0xccd) uPD71071 DMA 1
// map(0xcd0, 0xcdd) uPD71071 DMA 2
// map(0xce0, 0xce0) cpu control
// map(0xcf0, 0xcf0) cpu reset
}
//**************************************************************************
// INPUT DEFINITIONS
//**************************************************************************
static INPUT_PORTS_START( apxen )
INPUT_PORTS_END
//**************************************************************************
// VIDEO EMULATION
//**************************************************************************
uint32_t apxen_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
return 0;
}
MC6845_UPDATE_ROW( apxen_state::crtc_update_row )
{
}
//**************************************************************************
// MACHINE EMULATION
//**************************************************************************
void apxen_state::machine_start()
{
}
void apxen_state::machine_reset()
{
}
uint8_t apxen_state::get_slave_ack(offs_t offset)
{
if (offset == 2)
return m_pic[1]->acknowledge();
return 0x00;
}
//**************************************************************************
// MACHINE DEFINTIONS
//**************************************************************************
void apxen_state::apxen(machine_config &config)
{
I80286(config, m_maincpu, 15_MHz_XTAL / 2);
m_maincpu->set_addrmap(AS_PROGRAM, &apxen_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &apxen_state::io_map);
m_maincpu->set_irq_acknowledge_callback(m_pic[0], FUNC(pic8259_device::inta_cb));
PIC8259(config, m_pic[0], 0);
m_pic[0]->out_int_callback().set_inputline(m_maincpu, 0);
m_pic[0]->in_sp_callback().set_constant(1);
m_pic[0]->read_slave_ack_callback().set(FUNC(apxen_state::get_slave_ack));
PIC8259(config, m_pic[1], 0);
m_pic[1]->out_int_callback().set(m_pic[0], FUNC(pic8259_device::ir2_w));
m_pic[1]->in_sp_callback().set_constant(0);
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_color(rgb_t::green());
screen.set_size(800, 400);
screen.set_visarea(0, 800-1, 0, 400-1);
screen.set_refresh_hz(72);
screen.set_screen_update(FUNC(apxen_state::screen_update));
PALETTE(config, m_mono_palette, palette_device::MONOCHROME_HIGHLIGHT);
HD6845S(config, m_crtc, 24_MHz_XTAL / 20); // actually MB89321B
m_crtc->set_screen("screen");
m_crtc->set_show_border_area(false);
m_crtc->set_char_width(10);
m_crtc->set_update_row_callback(FUNC(apxen_state::crtc_update_row));
}
//**************************************************************************
// ROM DEFINITIONS
//**************************************************************************
ROM_START( apxen )
ROM_REGION16_LE(0x10000, "bios", 0)
// LO-XEN 3.1.3 7143 (checksum matches)
ROM_LOAD16_BYTE("lo-xen_313.ic80", 0x0000, 0x8000, CRC(c2a1fd6e) SHA1(8dfc711dd910bc3d43c1120978ba199a13463068))
// HI-XEN 3.1.3 9BF0 (checksum matches)
ROM_LOAD16_BYTE("hi-xen_313.ic37", 0x0001, 0x8000, CRC(72ee2f09) SHA1(da11043d40a694802f6d3d27a4359067dd19c8e6))
// should probably be moved elsewhere
ROM_REGION(0x2000, "hdd", 0)
ROM_LOAD("rodime_ro3055.bin", 0x0000, 0x2000, CRC(61d1544a) SHA1(2177a4c6409c0ee3d3e3e6c659085adf236f8726))
ROM_END
} // anonymous namespace
//**************************************************************************
// SYSTEM DRIVERS
//**************************************************************************
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1985, apxen, 0, 0, apxen, apxen, apxen_state, empty_init, "ACT", "Apricot XEN", MACHINE_IS_SKELETON )

3
src/mame/mame.lst
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@ -1484,6 +1484,9 @@ f2 //
@source:apricotp.cpp
fp //
@source:apxen.cpp
apxen // 1985 ACT
@source:aquarium.cpp
aquarium // (c) 1996 Excellent System
aquariumj // (c) 1996 Excellent System

1
src/mame/mess.flt
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@ -80,6 +80,7 @@ applix.cpp
apricot.cpp
apricotf.cpp
apricotp.cpp
apxen.cpp
aquarius.cpp
arcadia.cpp
argo.cpp