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Diffstat (limited to 'src/mame/drivers/mikro80.cpp')
-rw-r--r--src/mame/drivers/mikro80.cpp112
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 )