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https://github.com/holub/mame
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New Not Working machine : LSI M3
This commit is contained in:
Robbbert
parent
978fabb6b3
commit
4106d1404e
@ -3514,6 +3514,7 @@ files {
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MAME_DIR .. "src/mame/drivers/lg-dvd.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/m79152pc.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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144
src/mame/drivers/m3.cpp
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144
src/mame/drivers/m3.cpp
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@ -0,0 +1,144 @@
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// license:BSD-3-Clause
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// copyright-holders:
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/***********************************************************************************************************************************
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2017-11-20 Skeleton
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LSI M3
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From disassembly: chips: Z80, 6845, 8251, 2x 8255, Z80CTC
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************************************************************************************************************************************/
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "video/mc6845.h"
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#include "screen.h"
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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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{ }
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MC6845_UPDATE_ROW(crtc_update_row);
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private:
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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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required_device<palette_device> m_palette;
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};
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static ADDRESS_MAP_START( mem_map, AS_PROGRAM, 8, m3_state )
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AM_RANGE(0x0000, 0xe7ff) AM_RAM
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AM_RANGE(0xe800, 0xefff) AM_RAM AM_SHARE("videoram")
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AM_RANGE(0xf000, 0xffff) AM_ROM AM_REGION("roms", 0)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( io_map, AS_PROGRAM, 8, m3_state )
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ADDRESS_MAP_GLOBAL_MASK (0xff)
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AM_RANGE(0x84, 0x84) AM_DEVREADWRITE("crtc", mc6845_device, status_r, address_w)
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AM_RANGE(0x85, 0x85) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w)
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ADDRESS_MAP_END
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static INPUT_PORTS_START( m3 )
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INPUT_PORTS_END
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MC6845_UPDATE_ROW( m3_state::crtc_update_row )
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{
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const rgb_t *pens = m_palette->palette()->entry_list_raw();
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uint8_t chr,gfx,inv;
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uint16_t mem,x;
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uint32_t *p = &bitmap.pix32(y);
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for (x = 0; x < x_count; x++)
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{
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inv = (x == cursor_x) ? 0xff : 0;
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mem = (ma + x) & 0x7ff;
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chr = m_p_videoram[mem];
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if (BIT(chr, 7))
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{
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inv ^= 0xff;
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chr &= 0x7f;
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}
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/* get pattern of pixels for that character scanline */
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gfx = m_p_chargen[(chr<<4) | ra] ^ inv;
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/* Display a scanline of a character (8 pixels) */
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*p++ = pens[BIT(gfx, 6)];
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*p++ = pens[BIT(gfx, 5)];
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*p++ = pens[BIT(gfx, 4)];
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*p++ = pens[BIT(gfx, 3)];
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*p++ = pens[BIT(gfx, 2)];
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*p++ = pens[BIT(gfx, 1)];
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*p++ = pens[BIT(gfx, 0)];
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}
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}
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/* F4 Character Displayer */
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static const gfx_layout charlayout =
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{
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7, 16, /* 7 x 16 characters */
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128, /* 128 characters */
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1, /* 1 bits per pixel */
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{ 0 }, /* no bitplanes */
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/* x offsets */
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{ 1, 2, 3, 4, 5, 6, 7 },
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/* y offsets */
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{ 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8 },
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8*16 /* every char takes 16 bytes */
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};
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static GFXDECODE_START( f4disp )
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GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
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GFXDECODE_END
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void m3_state::machine_reset()
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{
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m_maincpu->set_pc(0xf000);
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}
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static MACHINE_CONFIG_START( m3 )
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MCFG_CPU_ADD("maincpu", Z80, 2'000'000) // no idea of clock.
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MCFG_CPU_PROGRAM_MAP(mem_map)
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MCFG_CPU_IO_MAP(io_map)
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/* video hardware */
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MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::green())
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) // not correct
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MCFG_SCREEN_UPDATE_DEVICE("crtc", mc6845_device, screen_update)
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MCFG_SCREEN_SIZE(640, 480)
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MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 479)
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", f4disp)
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MCFG_PALETTE_ADD_MONOCHROME("palette")
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/* Devices */
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MCFG_MC6845_ADD("crtc", MC6845, "screen", 2'000'000) // clk unknown
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MCFG_MC6845_SHOW_BORDER_AREA(false)
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MCFG_MC6845_CHAR_WIDTH(7)
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MCFG_MC6845_UPDATE_ROW_CB(m3_state, crtc_update_row)
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MACHINE_CONFIG_END
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ROM_START( m3 )
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ROM_REGION( 0x3000, "roms", 0 )
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ROM_LOAD( "bootstrap_prom_(034).bin", 0x0000, 0x0800, CRC(7fdb051e) SHA1(7aa24d4f44b6a0c8f7f647667f4997432c186cac) )
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ROM_LOAD( "monitor_prom_v1.7_2015-12-09.bin", 0x0800, 0x0800, CRC(85b5c541) SHA1(92b4ec87a4d0d8c0f7b49eec0c5457f237de0a01) )
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ROM_REGION( 0x0800, "chargen", 0 ) // bit 7 set on every byte - bad?
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ROM_LOAD( "6845crt_font_prom_(033).bin", 0x0000, 0x0800, CRC(cc29f664) SHA1(4197530d9455d665fd4773f95bb6394f6b056dec) )
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ROM_REGION( 0x0800, "keyboard", 0 )
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ROM_LOAD( "keyboard_prom_(032).bin", 0x0000, 0x0800, CRC(21548355) SHA1(ee4ce4af9c78474263dd58e0f19e79e5b00926fa) )
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ROM_END
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COMP( 19??, m3, 0, 0, m3, m3, m3_state, 0, "LSI", "M3", MACHINE_IS_SKELETON )
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@ -17895,6 +17895,9 @@ m40 //
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m24 //
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m240 //
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@source:m3.cpp
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m3 //
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@source:m5.cpp
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m5 //
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m5p //
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@ -345,6 +345,7 @@ lwriter.cpp
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lynx.cpp
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m20.cpp
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m24.cpp
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m3.cpp
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m5.cpp
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m6805evs.cpp
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m68705prg.cpp
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