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facit4440: Preliminary character display (nw)

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This commit is contained in:
AJR 2018-09-20 15:49:12 -04:00
parent ee4b6da096
commit aacde453ed
1 changed files with 54 additions and 27 deletions
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81
src/mame/drivers/facit4440.cpp
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@ -2,7 +2,7 @@
// copyright-holders:AJR
/****************************************************************************
Skeleton driver for Facit 4440 Twist terminal.
Preliminary driver for Facit 4440 Twist terminal.
The “Twist” sobriquet refers to the adjustable orientation of the
monitor, whose normally black-on-white display has the dimensions of a
@ -45,8 +45,10 @@ public:
, m_earom(*this, "earom%u", 0U)
, m_crtc(*this, "crtc")
, m_test(*this, "TEST")
, m_orientation(*this, "ORIENTATION")
, m_chargen(*this, "chargen")
, m_vidprom(*this, "vidprom")
, m_scanprom(*this, "scanprom")
, m_videoram(*this, "videoram")
{
}
@ -74,9 +76,11 @@ private:
required_device<mc6845_device> m_crtc;
required_ioport m_test;
required_ioport m_orientation;
required_region_ptr<u8> m_chargen;
required_region_ptr<u8> m_vidprom;
required_region_ptr<u8> m_scanprom;
required_shared_ptr<u8> m_videoram;
u8 m_control_latch[3];
};
@ -130,7 +134,7 @@ u8 facit4440_state::misc_status_r()
status |= m_earom[1]->data_r() << 3;
status |= m_crtc->vsync_r() << 1;
// TODO: what should bit 0 be?
status |= m_orientation->read();
return status;
}
@ -143,6 +147,22 @@ WRITE_LINE_MEMBER(facit4440_state::vsync_w)
MC6845_UPDATE_ROW(facit4440_state::update_row)
{
offs_t base = ma / 5 * 6;
u32 *px = &bitmap.pix32(y);
for (int i = 0; i < x_count; i++)
{
u8 chr = m_videoram[(base + i) & 0x1fff];
rgb_t fg = rgb_t::white();
rgb_t bg = rgb_t::black();
// TODO: double-width scans based on attributes
u8 scan = m_scanprom[ra | (BIT(m_control_latch[1], 7) ? 0x20 : 0x00)];
u8 dots = m_chargen[(u16(chr) << 5) | (scan & 0x1f)];
for (int n = 8; n > 0; n--, dots <<= 1)
*px++ = BIT(dots, 7) ? fg : bg;
}
}
void facit4440_state::mem_map(address_map &map)
@ -157,15 +177,15 @@ void facit4440_state::mem_map(address_map &map)
map(0x8000, 0x8050).nopw();
map(0xa000, 0xbfff).rom().region("testprg", 0);
map(0xa000, 0xa000).w(FUNC(facit4440_state::control_a000_w));
map(0xc000, 0xdfff).ram(); // 4x TMM2016AP-90
map(0xc000, 0xdfff).ram().share("videoram"); // 4x TMM2016AP-90
map(0xe000, 0xffff).ram(); // 4x TMM2016AP-90
}
void facit4440_state::io_map(address_map &map)
{
map.global_mask(0xff);
map(0xec, 0xef).rw("dart2", FUNC(z80dart_device::cd_ba_r), FUNC(z80dart_device::cd_ba_w));
map(0xf4, 0xf7).rw("dart1", FUNC(z80dart_device::cd_ba_r), FUNC(z80dart_device::cd_ba_w));
map(0xec, 0xef).rw("kbdart", FUNC(z80dart_device::cd_ba_r), FUNC(z80dart_device::cd_ba_w));
map(0xf4, 0xf7).rw("iodart", FUNC(z80dart_device::cd_ba_r), FUNC(z80dart_device::cd_ba_w));
map(0xf8, 0xfb).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
}
@ -182,13 +202,18 @@ static INPUT_PORTS_START(facit4440)
PORT_CONFSETTING(0, DEF_STR(Off))
PORT_CONFSETTING(3, DEF_STR(On))
PORT_CONFSETTING(2, "Burn In")
PORT_START("ORIENTATION")
PORT_CONFNAME(1, 1, "Orientation")
PORT_CONFSETTING(0, "Portrait")
PORT_CONFSETTING(1, "Landscape")
INPUT_PORTS_END
static const z80_daisy_config daisy_chain[] =
{
{ "ctc" },
{ "dart1" },
{ "dart2" },
{ "iodart" },
{ "kbdart" },
{ nullptr }
};
@ -207,10 +232,10 @@ void facit4440_state::facit4440(machine_config &config)
z80ctc_device &ctc(Z80CTC(config, "ctc", 32_MHz_XTAL / 8));
ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
ctc.zc_callback<0>().set("dart1", FUNC(z80dart_device::txca_w));
ctc.zc_callback<1>().set("dart1", FUNC(z80dart_device::rxca_w));
ctc.zc_callback<2>().set("dart1", FUNC(z80dart_device::txcb_w));
ctc.zc_callback<2>().append("dart1", FUNC(z80dart_device::rxcb_w));
ctc.zc_callback<0>().set("iodart", FUNC(z80dart_device::txca_w));
ctc.zc_callback<1>().set("iodart", FUNC(z80dart_device::rxca_w));
ctc.zc_callback<2>().set("iodart", FUNC(z80dart_device::txcb_w));
ctc.zc_callback<2>().append("iodart", FUNC(z80dart_device::rxcb_w));
clock_device &baudclk(CLOCK(config, "baudclk", 2.4576_MHz_XTAL / 4));
baudclk.signal_handler().set("ctc", FUNC(z80ctc_device::trg0));
@ -218,27 +243,29 @@ void facit4440_state::facit4440(machine_config &config)
baudclk.signal_handler().append("ctc", FUNC(z80ctc_device::trg2));
clock_device &keybclk(CLOCK(config, "keybclk", 2.4576_MHz_XTAL / 32)); // unclear
keybclk.signal_handler().set("dart2", FUNC(z80dart_device::txca_w));
keybclk.signal_handler().append("dart2", FUNC(z80dart_device::rxca_w));
keybclk.signal_handler().set("kbdart", FUNC(z80dart_device::txca_w));
keybclk.signal_handler().append("kbdart", FUNC(z80dart_device::rxca_w));
z80dart_device &dart1(Z80DART(config, "dart1", 32_MHz_XTAL / 8)); // Z80ADART
dart1.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
dart1.out_txda_callback().set("dart1", FUNC(z80dart_device::rxa_w)); // temporary loopback for testing
dart1.out_rtsa_callback().set("dart1", FUNC(z80dart_device::ctsa_w)); // temporary loopback for testing
dart1.out_dtra_callback().set("dart1", FUNC(z80dart_device::dcdb_w)); // temporary loopback for testing
dart1.out_txdb_callback().set("dart1", FUNC(z80dart_device::rxb_w)); // temporary loopback for testing
z80dart_device &iodart(Z80DART(config, "iodart", 32_MHz_XTAL / 8)); // Z80ADART
iodart.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
iodart.out_txda_callback().set("iodart", FUNC(z80dart_device::rxa_w)); // temporary loopback for testing
iodart.out_rtsa_callback().set("iodart", FUNC(z80dart_device::ctsa_w)); // temporary loopback for testing
iodart.out_dtra_callback().set("iodart", FUNC(z80dart_device::dcdb_w)); // temporary loopback for testing
iodart.out_txdb_callback().set("iodart", FUNC(z80dart_device::rxb_w)); // temporary loopback for testing
z80dart_device &dart2(Z80DART(config, "dart2", 32_MHz_XTAL / 8)); // Z80ADART
dart2.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
dart2.out_txda_callback().set("dart2", FUNC(z80dart_device::rxa_w)); // FIXME: serial keyboard needed here
z80dart_device &kbdart(Z80DART(config, "kbdart", 32_MHz_XTAL / 8)); // Z80ADART
kbdart.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
kbdart.out_txda_callback().set("kbdart", FUNC(z80dart_device::rxa_w)); // FIXME: serial keyboard needed here
// Channel B is not used
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(FAKE_DOT_CLOCK, 103 * CHAR_WIDTH, 0, 80 * CHAR_WIDTH, 621, 0, 592);
screen.set_raw(FAKE_DOT_CLOCK, 103 * CHAR_WIDTH, 0, 80 * CHAR_WIDTH, 621, 0, 500);
//screen.set_raw(FAKE_DOT_CLOCK, 103 * CHAR_WIDTH, 0, 80 * CHAR_WIDTH, 621, 0, 560);
screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update));
MC6845(config, m_crtc, FAKE_DOT_CLOCK / CHAR_WIDTH); // HD46505SP-2
m_crtc->set_char_width(CHAR_WIDTH);
m_crtc->set_show_border_area(false);
m_crtc->set_update_row_callback(FUNC(facit4440_state::update_row), this);
m_crtc->out_hsync_callback().set("ctc", FUNC(z80ctc_device::trg3));
m_crtc->out_vsync_callback().set(FUNC(facit4440_state::vsync_w));
@ -258,8 +285,8 @@ ROM_START(facit4440)
ROM_LOAD("rom3.bin", 0x1000, 0x1000, CRC(a55a25d9) SHA1(c0d321e65f214adee01bf5f8c495b2518fa31b7b))
ROM_LOAD("rom4.bin", 0x2000, 0x1000, CRC(52004ef8) SHA1(50d6e2eb48f60db3a3c9d206fc40d3294b6adc0e))
ROM_REGION(0x0800, "vidprom", 0)
ROM_REGION(0x0800, "scanprom", 0)
ROM_LOAD("rom2.bin", 0x0000, 0x0800, CRC(9e1a190c) SHA1(fb08ee806f1056bcdfb5b08ea85995e1d3d01298))
ROM_END
COMP(1984, facit4440, 0, 0, facit4440, facit4440, facit4440_state, empty_init, "Facit", "4440 Twist (30M-F1)", MACHINE_IS_SKELETON)
COMP(1984, facit4440, 0, 0, facit4440, facit4440, facit4440_state, empty_init, "Facit", "4440 Twist (30M-F1)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS | MACHINE_NO_SOUND)