diff options
Diffstat (limited to 'src/mame/drivers/mikro80.cpp')
-rw-r--r-- | src/mame/drivers/mikro80.cpp | 112 |
1 files changed, 77 insertions, 35 deletions
diff --git a/src/mame/drivers/mikro80.cpp b/src/mame/drivers/mikro80.cpp index 1d0d2cdef28..d9952df0e55 100644 --- a/src/mame/drivers/mikro80.cpp +++ b/src/mame/drivers/mikro80.cpp @@ -2,9 +2,14 @@ // copyright-holders:Miodrag Milanovic /*************************************************************************** - MIKRO80 driver by Miodrag Milanovic +MIKRO80 driver by Miodrag Milanovic - 10/03/2008 Preliminary driver. +2008-03-10 Preliminary driver. + + +ToDo: +- Cassette save produces incorrect signal - need schematic of CMT. +- Kristall doesn't seem to have any tape load/save facility? ****************************************************************************/ @@ -22,35 +27,36 @@ /* Address maps */ void mikro80_state::mikro80_mem(address_map &map) { - map(0x0000, 0x07ff).bankrw("bank1"); // First bank - map(0x0800, 0xdfff).ram(); // RAM - map(0xe000, 0xe7ff).ram().share("cursor_ram");// Video RAM - map(0xe800, 0xefff).ram().share("video_ram"); // Video RAM - map(0xf000, 0xf7ff).ram(); // RAM - map(0xf800, 0xffff).rom(); // System ROM + map(0x0000, 0xdfff).ram().share("mainram"); + map(0xe000, 0xe7ff).ram().share("attrram"); + map(0xe800, 0xefff).ram().share("videoram"); + map(0xf000, 0xf7ff).ram(); + map(0xf800, 0xffff).rom().region("maincpu",0); } void mikro80_state::mikro80_io(address_map &map) { map.unmap_value_high(); - map(0x01, 0x01).rw(FUNC(mikro80_state::mikro80_tape_r), FUNC(mikro80_state::mikro80_tape_w)); - map(0x04, 0x07).rw(FUNC(mikro80_state::mikro80_keyboard_r), FUNC(mikro80_state::mikro80_keyboard_w)); + map(0x01, 0x01).rw(FUNC(mikro80_state::tape_r), FUNC(mikro80_state::tape_w)); + 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); })); } void mikro80_state::kristall_io(address_map &map) { map.unmap_value_high(); - map(0x00, 0x03).rw(m_ppi8255, FUNC(i8255_device::read), FUNC(i8255_device::write)); + map(0x00, 0x03).rw(m_ppi, FUNC(i8255_device::read), FUNC(i8255_device::write)); + // map(0x20, 0x23). init byte 8B, so possibly another ppi with reversed offset like mikro80 } void mikro80_state::radio99_io(address_map &map) { map.unmap_value_high(); - map(0x01, 0x01).rw(FUNC(mikro80_state::mikro80_tape_r), FUNC(mikro80_state::mikro80_tape_w)); - map(0x04, 0x04).w(FUNC(mikro80_state::radio99_sound_w)); - map(0x05, 0x05).rw(FUNC(mikro80_state::mikro80_8255_portc_r), FUNC(mikro80_state::mikro80_8255_portc_w)); - map(0x06, 0x06).r(FUNC(mikro80_state::mikro80_8255_portb_r)); - map(0x07, 0x07).w(FUNC(mikro80_state::mikro80_8255_porta_w)); + map(0x01, 0x01).rw(FUNC(mikro80_state::tape_r), FUNC(mikro80_state::tape_w)); + // no init byte, so ppi has been replaced by ordinary latches + map(0x04, 0x04).w(FUNC(mikro80_state::sound_w)); + map(0x05, 0x05).rw(FUNC(mikro80_state::portc_r), FUNC(mikro80_state::portc_w)); + map(0x06, 0x06).r(FUNC(mikro80_state::portb_r)); + map(0x07, 0x07).w(FUNC(mikro80_state::porta_w)); } /* Input ports */ @@ -147,7 +153,7 @@ static INPUT_PORTS_START( mikro80 ) INPUT_PORTS_END /* F4 Character Displayer */ -static const gfx_layout mikro80_charlayout = +static const gfx_layout charlayout = { 8, 8, /* 8 x 8 characters */ 256, /* 256 characters */ @@ -161,9 +167,42 @@ static const gfx_layout mikro80_charlayout = }; static GFXDECODE_START( gfx_mikro80 ) - GFXDECODE_ENTRY( "gfx1", 0x0000, mikro80_charlayout, 0, 1 ) + GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 ) GFXDECODE_END +u32 mikro80_state::screen_update_mikro80(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + u16 sy=0,ma=0; + + for (u8 y = 0; y < 32; y++) + { + for (u8 ra = 0; ra < 8; ra++) + { + u16 *p = &bitmap.pix16(sy++); + + for (u16 x = ma; x < ma + 64; x++) + { + bool attr = BIT(m_aram[x+1], 7); + u8 chr = m_vram[x]; + u8 gfx = m_p_chargen[(chr<<3) | ra ] ^ (attr ? 0xff : 0); + + /* Display a scanline of a character */ + *p++ = BIT(gfx, 7); + *p++ = BIT(gfx, 6); + *p++ = BIT(gfx, 5); + *p++ = BIT(gfx, 4); + *p++ = BIT(gfx, 3); + *p++ = BIT(gfx, 2); + *p++ = BIT(gfx, 1); + *p++ = BIT(gfx, 0); + } + } + ma+=64; + } + return 0; +} + + void mikro80_state::mikro80(machine_config &config) { /* basic machine hardware */ @@ -171,10 +210,10 @@ void mikro80_state::mikro80(machine_config &config) m_maincpu->set_addrmap(AS_PROGRAM, &mikro80_state::mikro80_mem); m_maincpu->set_addrmap(AS_IO, &mikro80_state::mikro80_io); - I8255(config, m_ppi8255); - m_ppi8255->out_pa_callback().set(FUNC(mikro80_state::mikro80_8255_porta_w)); - m_ppi8255->in_pb_callback().set(FUNC(mikro80_state::mikro80_8255_portb_r)); - m_ppi8255->in_pc_callback().set(FUNC(mikro80_state::mikro80_8255_portc_r)); + I8255(config, m_ppi); + m_ppi->out_pa_callback().set(FUNC(mikro80_state::porta_w)); + m_ppi->in_pb_callback().set(FUNC(mikro80_state::portb_r)); + m_ppi->in_pc_callback().set(FUNC(mikro80_state::portc_r)); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); @@ -206,7 +245,7 @@ void mikro80_state::radio99(machine_config &config) /* basic machine hardware */ m_maincpu->set_addrmap(AS_IO, &mikro80_state::radio99_io); - DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.12); + DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.50); voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0)); vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); } @@ -221,29 +260,32 @@ void mikro80_state::kristall(machine_config &config) /* ROM definition */ ROM_START( mikro80 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "mikro80.rom", 0xf800, 0x0800, CRC(63a4b72a) SHA1(6bd3e396539a15e2ccffa7486cae06ef6ddd1d03)) - ROM_REGION(0x0800, "gfx1",0) + ROM_REGION( 0x0800, "maincpu", 0 ) + ROM_LOAD( "mikro80.rom", 0x0000, 0x0800, CRC(63a4b72a) SHA1(6bd3e396539a15e2ccffa7486cae06ef6ddd1d03)) + + ROM_REGION(0x0800, "chargen",0) ROM_LOAD ("mikro80.fnt", 0x0000, 0x0800, CRC(43eb72bb) SHA1(761319cc6747661b33e84aa449cec83800543b5b) ) ROM_END ROM_START( radio99 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "monrk88.bin", 0xf800, 0x0800, CRC(5415d847) SHA1(c8233c72548bc79846b9d998766a10df349c5bda)) - ROM_REGION(0x0800, "gfx1",0) + ROM_REGION( 0x0800, "maincpu", 0 ) + ROM_LOAD( "monrk88.bin", 0x0000, 0x0800, CRC(5415d847) SHA1(c8233c72548bc79846b9d998766a10df349c5bda)) + + ROM_REGION(0x0800, "chargen",0) ROM_LOAD ("mikro80.fnt", 0x0000, 0x0800, CRC(43eb72bb) SHA1(761319cc6747661b33e84aa449cec83800543b5b) ) ROM_END ROM_START( kristall2 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "kristall-2.rom", 0xf800, 0x0800, CRC(e1b5c60f) SHA1(8ce5158def7fca91ec7e11efbb10aa5d70b7c36d)) - ROM_REGION(0x0800, "gfx1",0) + ROM_REGION( 0x0800, "maincpu", 0 ) + ROM_LOAD( "kristall-2.rom", 0x0000, 0x0800, CRC(e1b5c60f) SHA1(8ce5158def7fca91ec7e11efbb10aa5d70b7c36d)) + + ROM_REGION(0x0800, "chargen",0) ROM_LOAD( "kristall-2.fnt", 0x0000, 0x0800, CRC(9661c9f5) SHA1(830c38735dcb1c8a271fa0027f94b4e034848fc8)) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ -COMP( 1983, mikro80, 0, 0, mikro80, mikro80, mikro80_state, init_mikro80, "<unknown>", "Mikro-80", 0) -COMP( 1993, radio99, mikro80, 0, radio99, mikro80, mikro80_state, init_radio99, "<unknown>", "Radio-99DM", 0) -COMP( 1987, kristall2, mikro80, 0, kristall, mikro80, mikro80_state, init_mikro80, "<unknown>", "Kristall-2", 0) +COMP( 1983, mikro80, 0, 0, mikro80, mikro80, mikro80_state, init_mikro80, "<unknown>", "Mikro-80", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) +COMP( 1993, radio99, mikro80, 0, radio99, mikro80, mikro80_state, init_radio99, "<unknown>", "Radio-99DM", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) +COMP( 1987, kristall2, mikro80, 0, kristall, mikro80, mikro80_state, init_mikro80, "<unknown>", "Kristall-2", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) |