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https://github.com/holub/mame
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mikro80: cleanup
This commit is contained in:
Robbbert
parent
13b966c537
commit
3a2bf1c61b
@ -1966,7 +1966,6 @@ files {
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MAME_DIR .. "src/mame/drivers/mikro80.cpp",
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MAME_DIR .. "src/mame/includes/mikro80.h",
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MAME_DIR .. "src/mame/machine/mikro80.cpp",
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MAME_DIR .. "src/mame/video/mikro80.cpp",
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MAME_DIR .. "src/mame/drivers/okean240.cpp",
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MAME_DIR .. "src/mame/drivers/pk8000.cpp",
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MAME_DIR .. "src/mame/includes/pk8000.h",
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@ -2,9 +2,14 @@
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// copyright-holders:Miodrag Milanovic
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/***************************************************************************
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MIKRO80 driver by Miodrag Milanovic
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MIKRO80 driver by Miodrag Milanovic
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10/03/2008 Preliminary driver.
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2008-03-10 Preliminary driver.
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ToDo:
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- Cassette save produces incorrect signal - need schematic of CMT.
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- Kristall doesn't seem to have any tape load/save facility?
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****************************************************************************/
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@ -22,35 +27,36 @@
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/* Address maps */
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void mikro80_state::mikro80_mem(address_map &map)
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{
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map(0x0000, 0x07ff).bankrw("bank1"); // First bank
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map(0x0800, 0xdfff).ram(); // RAM
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map(0xe000, 0xe7ff).ram().share("cursor_ram");// Video RAM
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map(0xe800, 0xefff).ram().share("video_ram"); // Video RAM
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map(0xf000, 0xf7ff).ram(); // RAM
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map(0xf800, 0xffff).rom(); // System ROM
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map(0x0000, 0xdfff).ram().share("mainram");
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map(0xe000, 0xe7ff).ram().share("attrram");
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map(0xe800, 0xefff).ram().share("videoram");
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map(0xf000, 0xf7ff).ram();
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map(0xf800, 0xffff).rom().region("maincpu",0);
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}
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void mikro80_state::mikro80_io(address_map &map)
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{
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map.unmap_value_high();
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map(0x01, 0x01).rw(FUNC(mikro80_state::mikro80_tape_r), FUNC(mikro80_state::mikro80_tape_w));
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map(0x04, 0x07).rw(FUNC(mikro80_state::mikro80_keyboard_r), FUNC(mikro80_state::mikro80_keyboard_w));
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map(0x01, 0x01).rw(FUNC(mikro80_state::tape_r), FUNC(mikro80_state::tape_w));
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map(0x04, 0x07).lr8(NAME([this] (offs_t offset) { return m_ppi->read(offset^3); })).lw8(NAME([this] (offs_t offset, u8 data) { m_ppi->write(offset^3, data); }));
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}
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void mikro80_state::kristall_io(address_map &map)
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{
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map.unmap_value_high();
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map(0x00, 0x03).rw(m_ppi8255, FUNC(i8255_device::read), FUNC(i8255_device::write));
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map(0x00, 0x03).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write));
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// map(0x20, 0x23). init byte 8B, so possibly another ppi with reversed offset like mikro80
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}
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void mikro80_state::radio99_io(address_map &map)
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{
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map.unmap_value_high();
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map(0x01, 0x01).rw(FUNC(mikro80_state::mikro80_tape_r), FUNC(mikro80_state::mikro80_tape_w));
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map(0x04, 0x04).w(FUNC(mikro80_state::radio99_sound_w));
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map(0x05, 0x05).rw(FUNC(mikro80_state::mikro80_8255_portc_r), FUNC(mikro80_state::mikro80_8255_portc_w));
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map(0x06, 0x06).r(FUNC(mikro80_state::mikro80_8255_portb_r));
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map(0x07, 0x07).w(FUNC(mikro80_state::mikro80_8255_porta_w));
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map(0x01, 0x01).rw(FUNC(mikro80_state::tape_r), FUNC(mikro80_state::tape_w));
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// no init byte, so ppi has been replaced by ordinary latches
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map(0x04, 0x04).w(FUNC(mikro80_state::sound_w));
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map(0x05, 0x05).rw(FUNC(mikro80_state::portc_r), FUNC(mikro80_state::portc_w));
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map(0x06, 0x06).r(FUNC(mikro80_state::portb_r));
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map(0x07, 0x07).w(FUNC(mikro80_state::porta_w));
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}
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/* Input ports */
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@ -147,7 +153,7 @@ static INPUT_PORTS_START( mikro80 )
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INPUT_PORTS_END
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/* F4 Character Displayer */
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static const gfx_layout mikro80_charlayout =
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static const gfx_layout charlayout =
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{
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8, 8, /* 8 x 8 characters */
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256, /* 256 characters */
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@ -161,9 +167,42 @@ static const gfx_layout mikro80_charlayout =
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};
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static GFXDECODE_START( gfx_mikro80 )
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GFXDECODE_ENTRY( "gfx1", 0x0000, mikro80_charlayout, 0, 1 )
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GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
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GFXDECODE_END
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u32 mikro80_state::screen_update_mikro80(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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u16 sy=0,ma=0;
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for (u8 y = 0; y < 32; y++)
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{
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for (u8 ra = 0; ra < 8; ra++)
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{
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u16 *p = &bitmap.pix16(sy++);
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for (u16 x = ma; x < ma + 64; x++)
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{
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bool attr = BIT(m_aram[x+1], 7);
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u8 chr = m_vram[x];
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u8 gfx = m_p_chargen[(chr<<3) | ra ] ^ (attr ? 0xff : 0);
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/* Display a scanline of a character */
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*p++ = BIT(gfx, 7);
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*p++ = BIT(gfx, 6);
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*p++ = BIT(gfx, 5);
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*p++ = BIT(gfx, 4);
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*p++ = BIT(gfx, 3);
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*p++ = BIT(gfx, 2);
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*p++ = BIT(gfx, 1);
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*p++ = BIT(gfx, 0);
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}
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}
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ma+=64;
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}
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return 0;
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}
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void mikro80_state::mikro80(machine_config &config)
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{
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/* basic machine hardware */
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@ -171,10 +210,10 @@ void mikro80_state::mikro80(machine_config &config)
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m_maincpu->set_addrmap(AS_PROGRAM, &mikro80_state::mikro80_mem);
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m_maincpu->set_addrmap(AS_IO, &mikro80_state::mikro80_io);
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I8255(config, m_ppi8255);
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m_ppi8255->out_pa_callback().set(FUNC(mikro80_state::mikro80_8255_porta_w));
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m_ppi8255->in_pb_callback().set(FUNC(mikro80_state::mikro80_8255_portb_r));
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m_ppi8255->in_pc_callback().set(FUNC(mikro80_state::mikro80_8255_portc_r));
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I8255(config, m_ppi);
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m_ppi->out_pa_callback().set(FUNC(mikro80_state::porta_w));
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m_ppi->in_pb_callback().set(FUNC(mikro80_state::portb_r));
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m_ppi->in_pc_callback().set(FUNC(mikro80_state::portc_r));
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/* video hardware */
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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@ -206,7 +245,7 @@ void mikro80_state::radio99(machine_config &config)
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/* basic machine hardware */
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m_maincpu->set_addrmap(AS_IO, &mikro80_state::radio99_io);
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DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.12);
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DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.50);
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voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
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vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
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}
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@ -221,29 +260,32 @@ void mikro80_state::kristall(machine_config &config)
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/* ROM definition */
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ROM_START( mikro80 )
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ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "mikro80.rom", 0xf800, 0x0800, CRC(63a4b72a) SHA1(6bd3e396539a15e2ccffa7486cae06ef6ddd1d03))
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ROM_REGION(0x0800, "gfx1",0)
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ROM_REGION( 0x0800, "maincpu", 0 )
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ROM_LOAD( "mikro80.rom", 0x0000, 0x0800, CRC(63a4b72a) SHA1(6bd3e396539a15e2ccffa7486cae06ef6ddd1d03))
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ROM_REGION(0x0800, "chargen",0)
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ROM_LOAD ("mikro80.fnt", 0x0000, 0x0800, CRC(43eb72bb) SHA1(761319cc6747661b33e84aa449cec83800543b5b) )
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ROM_END
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ROM_START( radio99 )
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ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "monrk88.bin", 0xf800, 0x0800, CRC(5415d847) SHA1(c8233c72548bc79846b9d998766a10df349c5bda))
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ROM_REGION(0x0800, "gfx1",0)
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ROM_REGION( 0x0800, "maincpu", 0 )
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ROM_LOAD( "monrk88.bin", 0x0000, 0x0800, CRC(5415d847) SHA1(c8233c72548bc79846b9d998766a10df349c5bda))
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ROM_REGION(0x0800, "chargen",0)
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ROM_LOAD ("mikro80.fnt", 0x0000, 0x0800, CRC(43eb72bb) SHA1(761319cc6747661b33e84aa449cec83800543b5b) )
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ROM_END
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ROM_START( kristall2 )
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ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "kristall-2.rom", 0xf800, 0x0800, CRC(e1b5c60f) SHA1(8ce5158def7fca91ec7e11efbb10aa5d70b7c36d))
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ROM_REGION(0x0800, "gfx1",0)
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ROM_REGION( 0x0800, "maincpu", 0 )
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ROM_LOAD( "kristall-2.rom", 0x0000, 0x0800, CRC(e1b5c60f) SHA1(8ce5158def7fca91ec7e11efbb10aa5d70b7c36d))
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ROM_REGION(0x0800, "chargen",0)
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ROM_LOAD( "kristall-2.fnt", 0x0000, 0x0800, CRC(9661c9f5) SHA1(830c38735dcb1c8a271fa0027f94b4e034848fc8))
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ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
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COMP( 1983, mikro80, 0, 0, mikro80, mikro80, mikro80_state, init_mikro80, "<unknown>", "Mikro-80", 0)
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COMP( 1993, radio99, mikro80, 0, radio99, mikro80, mikro80_state, init_radio99, "<unknown>", "Radio-99DM", 0)
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COMP( 1987, kristall2, mikro80, 0, kristall, mikro80, mikro80_state, init_mikro80, "<unknown>", "Kristall-2", 0)
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COMP( 1983, mikro80, 0, 0, mikro80, mikro80, mikro80_state, init_mikro80, "<unknown>", "Mikro-80", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
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COMP( 1993, radio99, mikro80, 0, radio99, mikro80, mikro80_state, init_radio99, "<unknown>", "Radio-99DM", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
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COMP( 1987, kristall2, mikro80, 0, kristall, mikro80, mikro80_state, init_mikro80, "<unknown>", "Kristall-2", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
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@ -23,26 +23,18 @@ public:
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TIMER_RESET
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};
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mikro80_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_cursor_ram(*this, "cursor_ram"),
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m_video_ram(*this, "video_ram"),
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m_ppi8255(*this, "ppi8255"),
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m_cassette(*this, "cassette"),
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m_region_maincpu(*this, "maincpu"),
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m_region_gfx1(*this, "gfx1"),
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m_bank1(*this, "bank1"),
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m_io_line0(*this, "LINE0"),
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m_io_line1(*this, "LINE1"),
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m_io_line2(*this, "LINE2"),
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m_io_line3(*this, "LINE3"),
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m_io_line4(*this, "LINE4"),
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m_io_line5(*this, "LINE5"),
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m_io_line6(*this, "LINE6"),
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m_io_line7(*this, "LINE7"),
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m_io_line8(*this, "LINE8") ,
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m_dac(*this, "dac"),
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m_maincpu(*this, "maincpu")
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mikro80_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_aram(*this, "attrram")
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, m_vram(*this, "videoram")
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, m_ppi(*this, "ppi8255")
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, m_cassette(*this, "cassette")
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, m_rom(*this, "maincpu")
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, m_ram(*this, "mainram")
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, m_p_chargen(*this, "chargen")
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, m_io_keyboard(*this, "LINE%u", 0U)
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, m_dac(*this, "dac")
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, m_maincpu(*this, "maincpu")
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{ }
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void kristall(machine_config &config);
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@ -53,43 +45,33 @@ public:
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void init_mikro80();
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private:
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required_shared_ptr<uint8_t> m_cursor_ram;
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required_shared_ptr<uint8_t> m_video_ram;
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int m_keyboard_mask;
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int m_key_mask;
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void radio99_sound_w(uint8_t data);
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uint8_t mikro80_8255_portb_r();
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uint8_t mikro80_8255_portc_r();
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void mikro80_8255_porta_w(uint8_t data);
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void mikro80_8255_portc_w(uint8_t data);
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uint8_t mikro80_keyboard_r(offs_t offset);
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void mikro80_keyboard_w(offs_t offset, uint8_t data);
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void mikro80_tape_w(uint8_t data);
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uint8_t mikro80_tape_r();
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u8 m_keyboard_mask;
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u8 m_key_mask;
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void sound_w(u8 data);
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u8 portb_r();
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u8 portc_r();
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void porta_w(u8 data);
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void portc_w(u8 data);
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void tape_w(u8 data);
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u8 tape_r();
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virtual void machine_reset() override;
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virtual void video_start() override;
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uint32_t screen_update_mikro80(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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virtual void machine_start() override;
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u32 screen_update_mikro80(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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void kristall_io(address_map &map);
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void mikro80_io(address_map &map);
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void mikro80_mem(address_map &map);
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void radio99_io(address_map &map);
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virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
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required_device<i8255_device> m_ppi8255;
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memory_passthrough_handler *m_rom_shadow_tap;
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required_shared_ptr<uint8_t> m_aram;
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required_shared_ptr<uint8_t> m_vram;
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required_device<i8255_device> m_ppi;
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required_device<cassette_image_device> m_cassette;
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required_memory_region m_region_maincpu;
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required_memory_region m_region_gfx1;
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required_memory_bank m_bank1;
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required_ioport m_io_line0;
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required_ioport m_io_line1;
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required_ioport m_io_line2;
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required_ioport m_io_line3;
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required_ioport m_io_line4;
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required_ioport m_io_line5;
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required_ioport m_io_line6;
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required_ioport m_io_line7;
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required_ioport m_io_line8;
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required_region_ptr<u8> m_rom;
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required_shared_ptr<u8> m_ram;
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required_region_ptr<u8> m_p_chargen;
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required_ioport_array<9> m_io_keyboard;
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optional_device<dac_bit_interface> m_dac;
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required_device<cpu_device> m_maincpu;
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};
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@ -16,95 +16,79 @@
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/* Driver initialization */
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void mikro80_state::init_mikro80()
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{
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/* set initialy ROM to be visible on first bank */
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uint8_t *RAM = m_region_maincpu->base();
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memset(RAM,0x0000,0x0800); // make frist page empty by default
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m_bank1->configure_entries(1, 2, RAM, 0x0000);
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m_bank1->configure_entries(0, 2, RAM, 0xf800);
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m_key_mask = 0x7f;
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}
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void mikro80_state::init_radio99()
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{
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init_mikro80();
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m_key_mask = 0xff;
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}
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uint8_t mikro80_state::mikro80_8255_portb_r()
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u8 mikro80_state::portb_r()
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{
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uint8_t key = 0xff;
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if ((m_keyboard_mask & 0x01)!=0) { key &= m_io_line0->read(); }
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if ((m_keyboard_mask & 0x02)!=0) { key &= m_io_line1->read(); }
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if ((m_keyboard_mask & 0x04)!=0) { key &= m_io_line2->read(); }
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if ((m_keyboard_mask & 0x08)!=0) { key &= m_io_line3->read(); }
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if ((m_keyboard_mask & 0x10)!=0) { key &= m_io_line4->read(); }
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if ((m_keyboard_mask & 0x20)!=0) { key &= m_io_line5->read(); }
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if ((m_keyboard_mask & 0x40)!=0) { key &= m_io_line6->read(); }
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if ((m_keyboard_mask & 0x80)!=0) { key &= m_io_line7->read(); }
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u8 key = 0xff;
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for (u8 i = 0; i < 8; i++)
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if (BIT(m_keyboard_mask, i))
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key &= m_io_keyboard[i]->read();
|
||||
|
||||
return key & m_key_mask;
|
||||
}
|
||||
|
||||
uint8_t mikro80_state::mikro80_8255_portc_r()
|
||||
u8 mikro80_state::portc_r()
|
||||
{
|
||||
return m_io_line8->read();
|
||||
return m_io_keyboard[8]->read();
|
||||
}
|
||||
|
||||
void mikro80_state::mikro80_8255_porta_w(uint8_t data)
|
||||
void mikro80_state::porta_w(u8 data)
|
||||
{
|
||||
m_keyboard_mask = data ^ 0xff;
|
||||
}
|
||||
|
||||
void mikro80_state::mikro80_8255_portc_w(uint8_t data)
|
||||
void mikro80_state::portc_w(u8 data)
|
||||
{
|
||||
}
|
||||
|
||||
void mikro80_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
|
||||
void mikro80_state::machine_start()
|
||||
{
|
||||
switch (id)
|
||||
{
|
||||
case TIMER_RESET:
|
||||
m_bank1->set_entry(0);
|
||||
break;
|
||||
default:
|
||||
throw emu_fatalerror("Unknown id in mikro80_state::device_timer");
|
||||
}
|
||||
save_item(NAME(m_keyboard_mask));
|
||||
save_item(NAME(m_key_mask));
|
||||
}
|
||||
|
||||
void mikro80_state::machine_reset()
|
||||
{
|
||||
timer_set(attotime::from_usec(10), TIMER_RESET);
|
||||
m_bank1->set_entry(1);
|
||||
m_keyboard_mask = 0;
|
||||
|
||||
address_space &program = m_maincpu->space(AS_PROGRAM);
|
||||
program.install_rom(0x0000, 0x07ff, m_rom); // do it here for F3
|
||||
m_rom_shadow_tap = program.install_read_tap(0xf800, 0xffff, "rom_shadow_r",[this](offs_t offset, u8 &data, u8 mem_mask)
|
||||
{
|
||||
if (!machine().side_effects_disabled())
|
||||
{
|
||||
// delete this tap
|
||||
m_rom_shadow_tap->remove();
|
||||
|
||||
// reinstall ram over the rom shadow
|
||||
m_maincpu->space(AS_PROGRAM).install_ram(0x0000, 0x07ff, m_ram);
|
||||
}
|
||||
|
||||
// return the original data
|
||||
return data;
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
uint8_t mikro80_state::mikro80_keyboard_r(offs_t offset)
|
||||
void mikro80_state::tape_w(u8 data)
|
||||
{
|
||||
return m_ppi8255->read(offset^0x03);
|
||||
// Todo: this is incorrect, to be fixed when the CMT schematic can be found
|
||||
m_cassette->output(BIT(data, 0) ? 1.0 : -1.0);
|
||||
}
|
||||
|
||||
void mikro80_state::mikro80_keyboard_w(offs_t offset, uint8_t data)
|
||||
|
||||
u8 mikro80_state::tape_r()
|
||||
{
|
||||
m_ppi8255->write(offset^0x03, data);
|
||||
return m_cassette->input() ? 0xff : 0;
|
||||
}
|
||||
|
||||
|
||||
void mikro80_state::mikro80_tape_w(uint8_t data)
|
||||
{
|
||||
m_cassette->output(data & 0x01 ? 1 : -1);
|
||||
}
|
||||
|
||||
|
||||
uint8_t mikro80_state::mikro80_tape_r()
|
||||
{
|
||||
double level = m_cassette->input();
|
||||
if (level < 0) {
|
||||
return 0x00;
|
||||
}
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
void mikro80_state::radio99_sound_w(uint8_t data)
|
||||
void mikro80_state::sound_w(u8 data)
|
||||
{
|
||||
m_dac->write(BIT(data, 1));
|
||||
}
|
||||
|
||||
@ -1,40 +0,0 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Miodrag Milanovic
|
||||
/***************************************************************************
|
||||
|
||||
Mikro-80 video driver by Miodrag Milanovic
|
||||
|
||||
10/03/2008 Preliminary driver.
|
||||
|
||||
****************************************************************************/
|
||||
|
||||
|
||||
#include "emu.h"
|
||||
#include "includes/mikro80.h"
|
||||
|
||||
|
||||
void mikro80_state::video_start()
|
||||
{
|
||||
}
|
||||
|
||||
uint32_t mikro80_state::screen_update_mikro80(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
|
||||
{
|
||||
uint8_t *gfx = m_region_gfx1->base();
|
||||
int x,y,b;
|
||||
|
||||
for(y = 0; y < 32*8; y++ )
|
||||
{
|
||||
for(x = 0; x < 64; x++ )
|
||||
{
|
||||
int addr = x + (y / 8)*64;
|
||||
uint8_t code = gfx[m_video_ram [addr]*8+ (y % 8)];
|
||||
uint8_t attr = m_cursor_ram[addr+1] & 0x80 ? 1 : 0;
|
||||
for (b = 7; b >= 0; b--)
|
||||
{
|
||||
uint8_t col = (code >> b) & 0x01;
|
||||
bitmap.pix16(y, x*8+(7-b)) = attr ? col ^ 1 : col;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user