mirror of
https://github.com/holub/mame
synced 2025-04-16 21:44:32 +03:00
m3: Rewrite driver
System is now mostly working. The monitor ROM can be used. No software available, so the floppy hookup isn't finished.
This commit is contained in:
Dirk Best
parent
b63d020ba6
commit
23752742b3
@ -1275,6 +1275,7 @@ function linkProjects_mame_mess(_target, _subtarget)
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"kurzweil",
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"kyocera",
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"leapfrog",
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"learsiegler",
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"lsi",
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"luxor",
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"magnavox",
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@ -2806,7 +2807,7 @@ files {
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MAME_DIR .. "src/mame/drivers/leapfrog_iquest.cpp",
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}
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createMESSProjects(_target, _subtarget, "lsi")
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createMESSProjects(_target, _subtarget, "learsiegler")
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files {
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MAME_DIR .. "src/mame/drivers/adm11.cpp",
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MAME_DIR .. "src/mame/drivers/adm23.cpp",
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@ -2814,6 +2815,14 @@ files {
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MAME_DIR .. "src/mame/drivers/adm36.cpp",
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}
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createMESSProjects(_target, _subtarget, "lsi")
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files {
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MAME_DIR .. "src/mame/drivers/m3.cpp",
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MAME_DIR .. "src/mame/drivers/octopus.cpp",
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MAME_DIR .. "src/mame/machine/octo_kbd.cpp",
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MAME_DIR .. "src/mame/machine/octo_kbd.h",
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}
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createMESSProjects(_target, _subtarget, "luxor")
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files {
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MAME_DIR .. "src/mame/drivers/abc80.cpp",
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@ -4519,7 +4528,6 @@ files {
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MAME_DIR .. "src/mame/drivers/lms46.cpp",
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MAME_DIR .. "src/mame/drivers/lola8a.cpp",
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MAME_DIR .. "src/mame/drivers/lilith.cpp",
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MAME_DIR .. "src/mame/drivers/m3.cpp",
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MAME_DIR .. "src/mame/drivers/mccpm.cpp",
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MAME_DIR .. "src/mame/drivers/mes.cpp",
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MAME_DIR .. "src/mame/drivers/mfabfz.cpp",
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@ -4557,9 +4565,6 @@ files {
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MAME_DIR .. "src/mame/drivers/ngen.cpp",
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MAME_DIR .. "src/mame/machine/ngen_kb.cpp",
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MAME_DIR .. "src/mame/machine/ngen_kb.h",
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MAME_DIR .. "src/mame/drivers/octopus.cpp",
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MAME_DIR .. "src/mame/machine/octo_kbd.cpp",
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MAME_DIR .. "src/mame/machine/octo_kbd.h",
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MAME_DIR .. "src/mame/drivers/onyx.cpp",
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MAME_DIR .. "src/mame/drivers/p8k.cpp",
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MAME_DIR .. "src/mame/drivers/pdt3100.cpp",
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@ -1,152 +1,594 @@
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// license:BSD-3-Clause
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// copyright-holders:
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/***********************************************************************************************************************************
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// license: BSD-3-Clause
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// copyright-holders: Robbbert, Dirk Best
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/***************************************************************************
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2017-11-20 Skeleton
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LSI M-THREE
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LSI M3
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Models:
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- M-THREE/100 (SA400, 5.25" single sided)
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- M-THREE/110 (SA410, 5.25" single sided)
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- M-THREE/150 (SA450, 5.25" double sided)
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- M-THREE/160 (SA460, 5.25" double sided)
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- M-THREE/200 (SA800, 8" single sided)
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- M-THREE/250 (SA850, 8" double sided) [emulated by default]
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- M-THREE/320 (SA800, 8" single sided, Winchester 5 MB)
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- M-THREE/325 (SA850, 8" double sided, Winchester 5 MB)
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- M-THREE/340 (SA800, 8" single sided, Winchester 10 MB)
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- M-THREE/345 (SA850, 8" double sided, Winchester 10 MB)
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From disassembly: chips: Z80, 6845, 8251, 2x 8255, Z80CTC
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Hardware:
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- Z80
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- 64 KB RAM
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- Z80 CTC
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- 2x D8255AC PPI
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- D8251A
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- MC6845P CRTC
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- FD1793 FDC
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TODO:
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- Initial PC is currently hacked to f000
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- Finish floppy hookup
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- Printer interface
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- Buzzer
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- Map the rest of the keys, verify existing keys
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************************************************************************************************************************************/
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Notes:
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- No software available
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***************************************************************************/
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#include "emu.h"
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#include "cpu/mcs48/mcs48.h"
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#include "cpu/z80/z80.h"
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#include "machine/z80ctc.h"
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#include "machine/i8255.h"
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#include "machine/i8251.h"
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#include "machine/wd_fdc.h"
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#include "video/mc6845.h"
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#include "imagedev/floppy.h"
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#include "bus/rs232/rs232.h"
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#include "emupal.h"
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#include "screen.h"
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namespace {
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class m3_state : public driver_device
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{
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public:
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m3_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_p_chargen(*this, "chargen")
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, m_p_videoram(*this, "videoram")
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, m_palette(*this, "palette")
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: driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_ppi(*this, "ppi%u", 0U),
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m_chargen(*this, "chargen"),
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m_vram(*this, "vram"),
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m_palette(*this, "palette"),
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m_fdc(*this, "fdc"),
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m_floppy(*this, "fdc:%u", 0),
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m_kbdmcu(*this, "kbdmcu"),
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m_special(*this, "SPECIAL"),
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m_keys(*this, "K%02u", 0U)
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{ }
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void m3(machine_config &config);
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private:
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MC6845_UPDATE_ROW(crtc_update_row);
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void io_map(address_map &map);
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void mem_map(address_map &map);
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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required_device<cpu_device> m_maincpu;
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required_region_ptr<u8> m_p_chargen;
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required_shared_ptr<u8> m_p_videoram;
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private:
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required_device<z80_device> m_maincpu;
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required_device_array<i8255_device, 2> m_ppi;
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required_region_ptr<uint8_t> m_chargen;
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required_shared_ptr<uint8_t> m_vram;
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required_device<palette_device> m_palette;
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required_device<fd1793_device> m_fdc;
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required_device_array<floppy_connector, 2> m_floppy;
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required_device<i8035_device> m_kbdmcu;
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required_ioport m_special;
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required_ioport_array<16> m_keys;
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void mem_map(address_map &map);
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void io_map(address_map &map);
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void kbd_mem_map(address_map &map);
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void kbd_io_map(address_map &map);
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int kbd_t0_r();
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int kbd_t1_r();
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uint8_t kbd_p1_r();
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void kbd_p1_w(uint8_t data);
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void kbd_p2_w(uint8_t data);
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void kbd_data_w(uint8_t data);
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int m_kbd_col;
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int m_kbd_row;
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uint8_t m_kbd_data;
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void ppi2_pa_w(uint8_t data);
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uint8_t ppi2_pb_r();
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MC6845_UPDATE_ROW(crtc_update_row);
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};
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//**************************************************************************
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// ADDRESS MAPS
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//**************************************************************************
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void m3_state::mem_map(address_map &map)
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{
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map(0x0000, 0xe7ff).ram();
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map(0xe800, 0xefff).ram().share("videoram");
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map(0xf000, 0xffff).rom().region("roms", 0);
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map(0xe800, 0xefff).ram().share("vram");
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map(0xf000, 0xffff).rom().region("maincpu", 0);
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}
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void m3_state::io_map(address_map &map)
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{
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map.global_mask(0xff);
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map(0x80, 0x83).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
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map(0x84, 0x84).rw("crtc", FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w));
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map(0x85, 0x85).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
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map(0x88, 0x8b).rw(m_fdc, FUNC(fd1793_device::read), FUNC(fd1793_device::write));
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map(0x8c, 0x8d).rw("usart", FUNC(i8251_device::read), FUNC(i8251_device::write));
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map(0x90, 0x93).rw(m_ppi[0], FUNC(i8255_device::read), FUNC(i8255_device::write));
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map(0x94, 0x97).rw(m_ppi[1], FUNC(i8255_device::read), FUNC(i8255_device::write));
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}
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void m3_state::kbd_mem_map(address_map &map)
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{
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map(0x000, 0x7ff).rom().mirror(0x800).region("keyboard", 0);
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}
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void m3_state::kbd_io_map(address_map &map)
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{
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map(0x30, 0x30).mirror(0xf).w(FUNC(m3_state::kbd_data_w));
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}
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//**************************************************************************
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// INPUT DEFINITIONS
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//**************************************************************************
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// unmapped keys:
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//
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// INIT PROG F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14
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// INS_CHAR DEL_CHAR INS_LINE DEL_LINE CLEAR_FORE CLEAR_PAGE PROT_MODE BLOCK_MODE
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// SEND_LINE SEND_FORE SEND_PAGE PAGE_FWD UP PAGE_BACK LEFT HOME RIGHT
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// BREAK SET_TAB DOWN CLEAR_TAB
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static INPUT_PORTS_START( m3 )
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PORT_START("SPECIAL")
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PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) // or shift-lock?
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PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
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PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
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PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_NAME("Repeat")
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PORT_START("K00")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": (?)")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b4")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b3")
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("85")
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PORT_START("K01")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0f")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b2")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("86")
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PORT_START("K02")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("05")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("96")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("89")
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PORT_START("K03")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(';') PORT_CHAR('+')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 (?)")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("95")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('@') PORT_CHAR('`')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8a")
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PORT_START("K04")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR('*')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("11")
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("94")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8b")
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PORT_START("K05")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("cd")
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("93")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') // actually ¦
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8c")
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PORT_START("K06")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("92")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8d")
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PORT_START("K07")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('_')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("91")
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD))
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8e")
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PORT_START("K08")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL))
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("90")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("bc")
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LF") PORT_CHAR('\n')
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8f")
|
||||
|
||||
PORT_START("K09")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("cd")
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b1")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b0")
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("87")
|
||||
|
||||
PORT_START("K10")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("97")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD))
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("88")
|
||||
|
||||
PORT_START("K11")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("03")
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b5")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD))
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("84")
|
||||
|
||||
PORT_START("K12")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("cd")
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b7")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b6")
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("83")
|
||||
|
||||
PORT_START("K13")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xa3) // £
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ea")
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b8")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD))
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("82")
|
||||
|
||||
PORT_START("K14")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("02")
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ba")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b9")
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("81")
|
||||
|
||||
PORT_START("K15")
|
||||
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
|
||||
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
|
||||
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("c3")
|
||||
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("bb")
|
||||
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD))
|
||||
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
|
||||
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
|
||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("80")
|
||||
INPUT_PORTS_END
|
||||
|
||||
int m3_state::kbd_t0_r()
|
||||
{
|
||||
// outputs 26 alternating 0 and 1 to i/o port 0x00 when active
|
||||
return 1;
|
||||
}
|
||||
|
||||
int m3_state::kbd_t1_r()
|
||||
{
|
||||
// checked right before outputing a new keycode
|
||||
return 0;
|
||||
}
|
||||
|
||||
uint8_t m3_state::kbd_p1_r()
|
||||
{
|
||||
uint8_t data = 0;
|
||||
|
||||
// ---4---- key down
|
||||
// ----3--- repeat
|
||||
// -----2-- control
|
||||
// ------1- shift
|
||||
// -------0 caps-lock, shift-lock?
|
||||
|
||||
data |= BIT(m_keys[m_kbd_col]->read(), m_kbd_row) ? 0x00 : 0x10;
|
||||
data |= m_special->read();
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
void m3_state::kbd_p1_w(uint8_t data)
|
||||
{
|
||||
// 765----- row select
|
||||
|
||||
m_kbd_row = data >> 5;
|
||||
}
|
||||
|
||||
void m3_state::kbd_p2_w(uint8_t data)
|
||||
{
|
||||
// 7654---- column select
|
||||
// ----3210 unused
|
||||
|
||||
m_kbd_col = data >> 4;
|
||||
}
|
||||
|
||||
void m3_state::kbd_data_w(uint8_t data)
|
||||
{
|
||||
m_kbd_data = data;
|
||||
|
||||
m_ppi[1]->pc2_w(0);
|
||||
m_ppi[1]->pc2_w(1);
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// VIDEO EMULATION
|
||||
//**************************************************************************
|
||||
|
||||
MC6845_UPDATE_ROW( m3_state::crtc_update_row )
|
||||
{
|
||||
rgb_t const *const pens = m_palette->palette()->entry_list_raw();
|
||||
uint32_t *p = &bitmap.pix(y);
|
||||
rgb_t const *const pen = m_palette->palette()->entry_list_raw();
|
||||
|
||||
for (uint16_t x = 0; x < x_count; x++)
|
||||
{
|
||||
uint8_t inv = (x == cursor_x) ? 0xff : 0;
|
||||
uint16_t mem = (ma + x) & 0x7ff;
|
||||
uint8_t chr = m_p_videoram[mem];
|
||||
uint8_t chr = m_vram[mem];
|
||||
uint8_t gfx = m_chargen[((chr << 4) | ra) & 0x7ff];
|
||||
|
||||
// invert?
|
||||
if (BIT(chr, 7))
|
||||
{
|
||||
inv ^= 0xff;
|
||||
chr &= 0x7f;
|
||||
}
|
||||
gfx ^= 0xff;
|
||||
|
||||
/* get pattern of pixels for that character scanline */
|
||||
uint8_t gfx = m_p_chargen[(chr<<4) | ra] ^ inv;
|
||||
// cursor?
|
||||
if (x == cursor_x)
|
||||
gfx ^= 0xff;
|
||||
|
||||
/* Display a scanline of a character (8 pixels) */
|
||||
*p++ = pens[BIT(gfx, 6)];
|
||||
*p++ = pens[BIT(gfx, 5)];
|
||||
*p++ = pens[BIT(gfx, 4)];
|
||||
*p++ = pens[BIT(gfx, 3)];
|
||||
*p++ = pens[BIT(gfx, 2)];
|
||||
*p++ = pens[BIT(gfx, 1)];
|
||||
*p++ = pens[BIT(gfx, 0)];
|
||||
// draw 7 pixels of the character
|
||||
for (int i = 0; i < 7; i++)
|
||||
bitmap.pix(y, x * 7 + i) = pen[BIT(gfx, 6 - i)];
|
||||
}
|
||||
}
|
||||
|
||||
/* F4 Character Displayer */
|
||||
static const gfx_layout charlayout =
|
||||
{
|
||||
7, 16, /* 7 x 16 characters */
|
||||
128, /* 128 characters */
|
||||
1, /* 1 bits per pixel */
|
||||
{ 0 }, /* no bitplanes */
|
||||
/* x offsets */
|
||||
7, 10,
|
||||
128,
|
||||
1,
|
||||
{ 0 },
|
||||
{ 1, 2, 3, 4, 5, 6, 7 },
|
||||
/* y offsets */
|
||||
{ 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8 },
|
||||
8*16 /* every char takes 16 bytes */
|
||||
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8 },
|
||||
8*16
|
||||
};
|
||||
|
||||
static GFXDECODE_START( gfx_f4disp )
|
||||
GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
|
||||
static GFXDECODE_START(chars)
|
||||
GFXDECODE_ENTRY("chargen", 0x0000, charlayout, 0, 1)
|
||||
GFXDECODE_END
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// MACHINE EMULATION
|
||||
//**************************************************************************
|
||||
|
||||
void m3_state::ppi2_pa_w(uint8_t data)
|
||||
{
|
||||
floppy_image_device *floppy = nullptr;
|
||||
|
||||
// 7------- not used?
|
||||
// -6------ buzzer
|
||||
// --5----- not used?
|
||||
// ---4---- unknown
|
||||
// ----3--- unknown
|
||||
// -----2-- unknown (side?)
|
||||
// ------10 drive select
|
||||
|
||||
logerror("ppi2_pa_w: %02x\n", data);
|
||||
|
||||
if (BIT(data, 0) == 0)
|
||||
floppy = m_floppy[0] ? m_floppy[0]->get_device() : nullptr;
|
||||
|
||||
if (BIT(data, 1) == 0)
|
||||
floppy = m_floppy[1] ? m_floppy[1]->get_device() : nullptr;
|
||||
|
||||
m_fdc->set_floppy(floppy);
|
||||
|
||||
// todo: side select, motor
|
||||
}
|
||||
|
||||
uint8_t m3_state::ppi2_pb_r()
|
||||
{
|
||||
return m_kbd_data;
|
||||
}
|
||||
|
||||
void m3_state::machine_start()
|
||||
{
|
||||
// register for save states
|
||||
save_item(NAME(m_kbd_col));
|
||||
save_item(NAME(m_kbd_row));
|
||||
save_item(NAME(m_kbd_data));
|
||||
}
|
||||
|
||||
void m3_state::machine_reset()
|
||||
{
|
||||
m_maincpu->set_pc(0xf000);
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// MACHINE DEFINTIONS
|
||||
//**************************************************************************
|
||||
|
||||
static const z80_daisy_config daisy_chain[] =
|
||||
{
|
||||
{ "ctc" },
|
||||
{ nullptr }
|
||||
};
|
||||
|
||||
static DEVICE_INPUT_DEFAULTS_START( rs232_defaults )
|
||||
DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_9600 )
|
||||
DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_9600 )
|
||||
DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_7 )
|
||||
DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_EVEN )
|
||||
DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 )
|
||||
DEVICE_INPUT_DEFAULTS_END
|
||||
|
||||
static void m3_floppies(device_slot_interface &device)
|
||||
{
|
||||
device.option_add("sa400", FLOPPY_525_SSSD_35T);
|
||||
device.option_add("sa410", FLOPPY_525_SSQD);
|
||||
device.option_add("sa450", FLOPPY_525_DD);
|
||||
device.option_add("sa460", FLOPPY_525_QD);
|
||||
device.option_add("sa800", FLOPPY_8_SSDD);
|
||||
device.option_add("sa850", FLOPPY_8_DSDD);
|
||||
}
|
||||
|
||||
void m3_state::m3(machine_config &config)
|
||||
{
|
||||
Z80(config, m_maincpu, 2'000'000); // no idea of clock.
|
||||
Z80(config, m_maincpu, 2'500'000); // unknown divisor
|
||||
m_maincpu->set_addrmap(AS_PROGRAM, &m3_state::mem_map);
|
||||
m_maincpu->set_addrmap(AS_IO, &m3_state::io_map);
|
||||
m_maincpu->set_daisy_config(daisy_chain);
|
||||
|
||||
/* video hardware */
|
||||
z80ctc_device& ctc(Z80CTC(config, "ctc", 0)); // unknown clock
|
||||
ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
|
||||
ctc.set_clk<0>(2'457'600 / 2); // unknown clock. this gives the usart 9600 baud by default
|
||||
ctc.zc_callback<0>().set("usart", FUNC(i8251_device::write_txc));
|
||||
ctc.zc_callback<0>().append("usart", FUNC(i8251_device::write_rxc));
|
||||
|
||||
I8255(config, m_ppi[0]);
|
||||
|
||||
I8255(config, m_ppi[1]);
|
||||
m_ppi[1]->out_pa_callback().set(FUNC(m3_state::ppi2_pa_w));
|
||||
m_ppi[1]->in_pb_callback().set(FUNC(m3_state::ppi2_pb_r));
|
||||
|
||||
i8251_device &usart(I8251(config, "usart", 0)); // unknown clock
|
||||
usart.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd));
|
||||
usart.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts));
|
||||
usart.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr));
|
||||
|
||||
rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, nullptr));
|
||||
rs232.set_option_device_input_defaults("printer", DEVICE_INPUT_DEFAULTS_NAME(rs232_defaults));
|
||||
rs232.rxd_handler().set("usart", FUNC(i8251_device::write_rxd));
|
||||
rs232.dsr_handler().set("usart", FUNC(i8251_device::write_dsr));
|
||||
rs232.cts_handler().set("usart", FUNC(i8251_device::write_cts));
|
||||
|
||||
// video hardware
|
||||
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::green()));
|
||||
screen.set_refresh_hz(60);
|
||||
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not correct
|
||||
screen.set_raw(10'920'000, 707, 0, 560, 309, 0, 240); // unknown clock, hand-tuned to ~50 fps
|
||||
screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update));
|
||||
screen.set_size(640, 480);
|
||||
screen.set_visarea(0, 639, 0, 479);
|
||||
GFXDECODE(config, "gfxdecode", m_palette, gfx_f4disp);
|
||||
|
||||
GFXDECODE(config, "gfxdecode", m_palette, chars);
|
||||
|
||||
PALETTE(config, m_palette, palette_device::MONOCHROME);
|
||||
|
||||
/* Devices */
|
||||
mc6845_device &crtc(MC6845(config, "crtc", 2'000'000)); // clk unknown
|
||||
mc6845_device &crtc(MC6845(config, "crtc", 10'920'000 / 7)); // unknown clock
|
||||
crtc.set_screen("screen");
|
||||
crtc.set_show_border_area(false);
|
||||
crtc.set_char_width(7);
|
||||
crtc.set_update_row_callback(FUNC(m3_state::crtc_update_row));
|
||||
crtc.out_vsync_callback().set("ctc", FUNC(z80ctc_device::trg2));
|
||||
|
||||
// floppy
|
||||
FD1793(config, m_fdc, 2'000'000); // unknown clock
|
||||
m_fdc->drq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_NMI);
|
||||
FLOPPY_CONNECTOR(config, "fdc:0", m3_floppies, "sa850", floppy_image_device::default_floppy_formats);
|
||||
FLOPPY_CONNECTOR(config, "fdc:1", m3_floppies, "sa850", floppy_image_device::default_floppy_formats);
|
||||
|
||||
// keyboard
|
||||
I8035(config, m_kbdmcu, 3'000'000); // unknown clock
|
||||
m_kbdmcu->set_addrmap(AS_PROGRAM, &m3_state::kbd_mem_map);
|
||||
m_kbdmcu->set_addrmap(AS_IO, &m3_state::kbd_io_map);
|
||||
m_kbdmcu->p1_in_cb().set(FUNC(m3_state::kbd_p1_r));
|
||||
m_kbdmcu->p1_out_cb().set(FUNC(m3_state::kbd_p1_w));
|
||||
m_kbdmcu->p2_out_cb().set(FUNC(m3_state::kbd_p2_w));
|
||||
m_kbdmcu->t0_in_cb().set(FUNC(m3_state::kbd_t0_r));
|
||||
m_kbdmcu->t1_in_cb().set(FUNC(m3_state::kbd_t1_r));
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// ROM DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
ROM_START( m3 )
|
||||
ROM_REGION( 0x3000, "roms", 0 )
|
||||
ROM_LOAD( "bootstrap_prom,034.bin", 0x0000, 0x0800, CRC(7fdb051e) SHA1(7aa24d4f44b6a0c8f7f647667f4997432c186cac) )
|
||||
ROM_LOAD( "monitor_prom_v1.7_2015-12-09.bin", 0x0800, 0x0800, CRC(85b5c541) SHA1(92b4ec87a4d0d8c0f7b49eec0c5457f237de0a01) )
|
||||
ROM_REGION(0x1000, "maincpu", 0)
|
||||
ROM_LOAD("bootstrap_prom_034.bin", 0x0000, 0x0800, CRC(7fdb051e) SHA1(7aa24d4f44b6a0c8f7f647667f4997432c186cac))
|
||||
|
||||
// Homebrew Monitor ROM, written by Steve Hunt. Uses the socket of the HDD ROM.
|
||||
ROM_LOAD("monitor_prom_v17_2015-12-09.bin", 0x0800, 0x0800, CRC(85b5c541) SHA1(92b4ec87a4d0d8c0f7b49eec0c5457f237de0a01))
|
||||
|
||||
ROM_REGION( 0x0800, "chargen", 0 ) // bit 7 set on every byte - bad?
|
||||
ROM_LOAD( "6845crt_font_prom,033.bin", 0x0000, 0x0800, CRC(cc29f664) SHA1(4197530d9455d665fd4773f95bb6394f6b056dec) )
|
||||
ROM_REGION(0x800, "chargen", 0)
|
||||
ROM_LOAD("6845crt_font_prom_033.bin", 0x000, 0x800, CRC(cc29f664) SHA1(4197530d9455d665fd4773f95bb6394f6b056dec))
|
||||
|
||||
ROM_REGION( 0x0800, "keyboard", 0 )
|
||||
ROM_LOAD( "keyboard_prom,032.bin", 0x0000, 0x0800, CRC(21548355) SHA1(ee4ce4af9c78474263dd58e0f19e79e5b00926fa) )
|
||||
ROM_REGION(0x800, "keyboard", 0)
|
||||
ROM_LOAD("keyboard_prom_032.bin", 0x000, 0x800, CRC(21548355) SHA1(ee4ce4af9c78474263dd58e0f19e79e5b00926fa))
|
||||
ROM_END
|
||||
|
||||
COMP( 19??, m3, 0, 0, m3, m3, m3_state, empty_init, "LSI", "M3", MACHINE_IS_SKELETON )
|
||||
|
||||
} // anonymous namespace
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// SYSTEM DRIVERS
|
||||
//**************************************************************************
|
||||
|
||||
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
|
||||
COMP( 1982, m3, 0, 0, m3, m3, m3_state, empty_init, "LSI", "M-THREE", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
|
||||
|
||||
Loading…
Reference in New Issue
Block a user