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Diffstat (limited to 'src/mame/drivers/unior.cpp')
-rw-r--r--src/mame/drivers/unior.cpp519
1 files changed, 0 insertions, 519 deletions
diff --git a/src/mame/drivers/unior.cpp b/src/mame/drivers/unior.cpp
deleted file mode 100644
index 287099417bf..00000000000
--- a/src/mame/drivers/unior.cpp
+++ /dev/null
@@ -1,519 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Robbbert
-/************************************************************************************************
-
- Unior
-
- 2009-05-12 Skeleton driver.
- 2013-10-09 Added DMA and CRTC
- 2013-10-11 Added PPI, PIT, UART, sound
-
- Some info obtained from EMU-80.
- The schematic is difficult to read, and some code is guesswork.
-
-The monitor will only allow certain characters to be typed, thus the
-modifier keys appear to do nothing. There is no need to use the enter
-key; using spacebar and the correct parameters is enough.
-
-If you press Shift, indicators for numlock and capslock will appear.
-
-Monitor commands:
-C - ?
-D - hex dump
-E - save
-F - fill memory
-G - go
-H - set register
-I - load
-J - modify memory
-K - ?
-L - list registers
-M - ?
-
-ToDo:
-- Colour - created by PROM D9 (type K555PT4) - we need a proper dump of it.
-
-**********************************************************************************************/
-
-#include "emu.h"
-#include "cpu/i8085/i8085.h"
-#include "machine/i8251.h"
-#include "machine/pit8253.h"
-#include "machine/i8255.h"
-#include "machine/i8257.h"
-#include "video/i8275.h"
-#include "imagedev/cassette.h"
-#include "sound/spkrdev.h"
-#include "machine/timer.h"
-#include "emupal.h"
-#include "screen.h"
-#include "speaker.h"
-
-
-class unior_state : public driver_device
-{
-public:
- unior_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_pit(*this, "pit")
- , m_dma(*this, "dma")
- , m_uart(*this, "uart")
- , m_cass(*this, "cassette")
- , m_palette(*this, "palette")
- , m_p_chargen(*this, "chargen")
- , m_p_vram(*this, "vram")
- , m_io_keyboard(*this, "X%d", 0)
- { }
-
- void unior(machine_config &config);
-
-private:
- DECLARE_WRITE8_MEMBER(vram_w);
- DECLARE_WRITE8_MEMBER(scroll_w);
- DECLARE_READ8_MEMBER(ppi0_b_r);
- DECLARE_WRITE8_MEMBER(ppi0_b_w);
- DECLARE_READ8_MEMBER(ppi1_a_r);
- DECLARE_READ8_MEMBER(ppi1_b_r);
- DECLARE_READ8_MEMBER(ppi1_c_r);
- DECLARE_WRITE8_MEMBER(ppi1_a_w);
- DECLARE_WRITE8_MEMBER(ppi1_c_w);
- DECLARE_WRITE_LINE_MEMBER(hrq_w);
- DECLARE_WRITE_LINE_MEMBER(ctc_z1_w);
- void unior_palette(palette_device &palette) const;
- DECLARE_READ8_MEMBER(dma_r);
- I8275_DRAW_CHARACTER_MEMBER(display_pixels);
- TIMER_DEVICE_CALLBACK_MEMBER(kansas_r);
-
- void io_map(address_map &map);
- void mem_map(address_map &map);
-
- uint8_t m_4c;
- uint8_t m_4e;
- bool m_txe, m_txd, m_rts, m_casspol;
- u8 m_cass_data[4];
- virtual void machine_reset() override;
- required_device<cpu_device> m_maincpu;
- required_device<pit8253_device> m_pit;
- required_device<i8257_device> m_dma;
- required_device<i8251_device> m_uart;
- required_device<cassette_image_device> m_cass;
- required_device<palette_device> m_palette;
- required_region_ptr<u8> m_p_chargen;
- required_region_ptr<u8> m_p_vram;
- required_ioport_array<11> m_io_keyboard;
-};
-
-void unior_state::mem_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0xf7ff).ram();
- map(0xf800, 0xffff).rom().w(FUNC(unior_state::vram_w)); // main video
-}
-
-void unior_state::io_map(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xff);
- map(0x30, 0x38).rw(m_dma, FUNC(i8257_device::read), FUNC(i8257_device::write)); // dma data
- map(0x3c, 0x3f).rw("ppi0", FUNC(i8255_device::read), FUNC(i8255_device::write)); // cassette player control
- map(0x4c, 0x4f).rw("ppi1", FUNC(i8255_device::read), FUNC(i8255_device::write));
- map(0x50, 0x50).w(FUNC(unior_state::scroll_w));
- map(0x60, 0x61).rw("crtc", FUNC(i8275_device::read), FUNC(i8275_device::write));
- map(0xdc, 0xdf).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write));
- map(0xec, 0xed).rw(m_uart, FUNC(i8251_device::read), FUNC(i8251_device::write));
-}
-
-/* Input ports */
-static INPUT_PORTS_START( unior )
- PORT_START("X0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) // nothing
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) // nothing
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD)
-
- PORT_START("X1")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) // cancel input
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) // Russian little M
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Rus/Lat") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("NUMLK") PORT_CODE(KEYCODE_NUMLOCK) // switches 1st indicator between N and B - numlock? rctrl
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK)
-
- PORT_START("X2")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') // ;
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK) // switches 2nd indicator between U and B - capslock? rshift
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD)
-
- PORT_START("X3")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) // A
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('^') // ^ (')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD)
-
- PORT_START("X4")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) // B
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) // H
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) // I
-
- PORT_START("X5")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) // C
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) // G
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LF") PORT_CODE(KEYCODE_HOME) PORT_CHAR(10) // line feed?
-
- PORT_START("X6")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR(0xA4)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) // Russian A
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) // ? (/)
-
- PORT_START("X7")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) // D
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) // Russian bl
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) // Russian signpost
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) // } (<>)
-
- PORT_START("X8")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) // E
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('>') // >
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("= :") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(':') // :
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('=') // =
-
- PORT_START("X9")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) // Russian U
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
-
- PORT_START("X10")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('@') // (`)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR('<') // <
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
-INPUT_PORTS_END
-
-
-/*************************************************
-
- Video
-
-*************************************************/
-
-/* F4 Character Displayer */
-static const gfx_layout unior_charlayout =
-{
- 8, 8, /* 8 x 8 characters */
- 256, /* 256 characters */
- 1, /* 1 bits per pixel */
- { 0 }, /* no bitplanes */
- /* x offsets */
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- /* y offsets */
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
- 8*8 /* every char takes 8 bytes */
-};
-
-static GFXDECODE_START( gfx_unior )
- GFXDECODE_ENTRY( "chargen", 0x0000, unior_charlayout, 0, 1 )
-GFXDECODE_END
-
-WRITE8_MEMBER( unior_state::vram_w )
-{
- m_p_vram[offset] = data;
-}
-
-// pulses a 1 to scroll
-WRITE8_MEMBER( unior_state::scroll_w )
-{
- if (data)
- memmove(m_p_vram, m_p_vram+80, 24*80);
-}
-
-I8275_DRAW_CHARACTER_MEMBER(unior_state::display_pixels)
-{
- const rgb_t *palette = m_palette->palette()->entry_list_raw();
- uint8_t gfx = m_p_chargen[(linecount & 7) | (charcode << 3)];
-
- if (vsp)
- gfx = 0;
-
- if (lten)
- gfx = 0xff;
-
- if (rvv)
- gfx ^= 0xff;
-
- for(uint8_t i=0;i<6;i++)
- bitmap.pix32(y, x + i) = palette[BIT(gfx, 5-i) ? (hlgt ? 2 : 1) : 0];
-}
-
-static constexpr rgb_t unior_pens[3] =
-{
- { 0x00, 0x00, 0x00 }, // black
- { 0xa0, 0xa0, 0xa0 }, // white
- { 0xff, 0xff, 0xff } // highlight
-};
-
-void unior_state::unior_palette(palette_device &palette) const
-{
- palette.set_pen_colors(0, unior_pens);
-}
-
-
-/*************************************************
-
- i8255
-
-*************************************************/
-TIMER_DEVICE_CALLBACK_MEMBER( unior_state::kansas_r )
-{
- if (m_rts)
- {
- m_cass_data[1] = m_cass_data[2] = m_cass_data[3] = 0;
- m_casspol = 1;
- return;
- }
-
- m_cass_data[1]++;
- m_cass_data[2]++;
-
- uint8_t cass_ws = (m_cass->input() > +0.04) ? 1 : 0;
-
- if (cass_ws != m_cass_data[0])
- {
- m_cass_data[0] = cass_ws;
- if (m_cass_data[1] > 13)
- m_casspol ^= 1;
- m_cass_data[1] = 0;
- m_cass_data[2] = 0;
- m_uart->write_rxd(m_casspol);
- }
- if ((m_cass_data[2] & 7)==2)
- {
- m_cass_data[3]++;
- m_uart->write_rxc(BIT(m_cass_data[3], 0));
- }
-}
-
-WRITE_LINE_MEMBER(unior_state::ctc_z1_w)
-{
- // write - incoming 2400Hz
- m_uart->write_txc(state);
- if (!m_txe)
- {
- m_cass->output((m_txd ^ state) ? -1.0 : 1.0);
- }
-
- // read - incoming 3202Hz
-}
-
-
-READ8_MEMBER( unior_state::ppi0_b_r )
-{
- return 0;
-}
-
-// Bit 4 - cassette relay?
-WRITE8_MEMBER( unior_state::ppi0_b_w )
-{
-}
-
-READ8_MEMBER( unior_state::ppi1_a_r )
-{
- return m_4c;
-}
-
-READ8_MEMBER( unior_state::ppi1_b_r )
-{
- u8 t = m_4c & 15;
- if (t < 11)
- return m_io_keyboard[t]->read();
- else
- return 0xff;
-}
-
-READ8_MEMBER( unior_state::ppi1_c_r )
-{
- return m_4e;
-}
-
-WRITE8_MEMBER( unior_state::ppi1_a_w )
-{
- m_4c = data;
-}
-
-/*
-d0,1,2 = connect to what might be a 74LS138, then to an external slot
-d4 = speaker gate
-d5 = unknown
-d6 = connect to A7 of the palette prom
-d7 = not used
-*/
-WRITE8_MEMBER( unior_state::ppi1_c_w )
-{
- m_4e = data;
- m_pit->write_gate2(BIT(data, 4));
-}
-
-/*************************************************
-
- i8257
-
-*************************************************/
-
-READ8_MEMBER(unior_state::dma_r)
-{
- if (offset < 0xf800)
- return m_maincpu->space(AS_PROGRAM).read_byte(offset);
- else
- return m_p_vram[offset & 0x7ff];
-}
-
-WRITE_LINE_MEMBER( unior_state::hrq_w )
-{
- m_maincpu->set_input_line(INPUT_LINE_HALT, state);
- m_dma->hlda_w(state);
-}
-
-
-/*************************************************
-
- Machine
-
-*************************************************/
-
-void unior_state::machine_reset()
-{
- m_maincpu->set_state_int(i8080_cpu_device::I8085_PC, 0xF800);
- m_uart->write_cts(0);
- m_uart->write_dsr(0);
- m_casspol = 0;
- m_cass_data[0] = m_cass_data[1] = 0;
-}
-
-void unior_state::unior(machine_config &config)
-{
- /* basic machine hardware */
- I8080(config, m_maincpu, XTAL(20'000'000) / 9);
- m_maincpu->set_addrmap(AS_PROGRAM, &unior_state::mem_map);
- m_maincpu->set_addrmap(AS_IO, &unior_state::io_map);
-
- /* video hardware */
- screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
- screen.set_refresh_hz(50);
- screen.set_size(640, 200);
- screen.set_visarea(0, 640-1, 0, 200-1);
- screen.set_screen_update("crtc", FUNC(i8275_device::screen_update));
- GFXDECODE(config, "gfxdecode", m_palette, gfx_unior);
- PALETTE(config, m_palette, FUNC(unior_state::unior_palette), 3);
-
- /* sound hardware */
- SPEAKER(config, "mono").front_center();
- SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50);
-
- CASSETTE(config, m_cass);
- m_cass->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED);
- m_cass->add_route(ALL_OUTPUTS, "mono", 0.15);
- TIMER(config, "kansas_r").configure_periodic(FUNC(unior_state::kansas_r), attotime::from_hz(38400));
-
- /* Devices */
- I8251(config, m_uart, 20_MHz_XTAL / 9);
- m_uart->txd_handler().set([this] (bool state) { m_txd = state; });
- m_uart->txempty_handler().set([this] (bool state) { m_txe = state; });
- m_uart->rts_handler().set([this] (bool state) { m_rts = state; });
-
- PIT8253(config, m_pit, 0);
- m_pit->set_clk<0>(20_MHz_XTAL / 12);
- m_pit->set_clk<1>(20_MHz_XTAL / 9);
- m_pit->out_handler<1>().set(FUNC(unior_state::ctc_z1_w));
- m_pit->set_clk<2>(20_MHz_XTAL / 9 / 64); // unknown frequency
- m_pit->out_handler<2>().set("speaker", FUNC(speaker_sound_device::level_w));
-
- i8255_device &ppi0(I8255(config, "ppi0"));
- // ports a & c connect to an external slot
- ppi0.in_pb_callback().set(FUNC(unior_state::ppi0_b_r));
- ppi0.out_pb_callback().set(FUNC(unior_state::ppi0_b_w));
-
- i8255_device &ppi1(I8255(config, "ppi1"));
- // ports a & b are for the keyboard
- // port c operates various control lines for mostly unknown purposes
- ppi1.in_pa_callback().set(FUNC(unior_state::ppi1_a_r));
- ppi1.in_pb_callback().set(FUNC(unior_state::ppi1_b_r));
- ppi1.in_pc_callback().set(FUNC(unior_state::ppi1_c_r));
- ppi1.out_pa_callback().set(FUNC(unior_state::ppi1_a_w));
- ppi1.out_pc_callback().set(FUNC(unior_state::ppi1_c_w));
-
- I8257(config, m_dma, XTAL(20'000'000) / 9);
- m_dma->out_hrq_cb().set(FUNC(unior_state::hrq_w));
- m_dma->in_memr_cb().set(FUNC(unior_state::dma_r));
- m_dma->out_iow_cb<2>().set("crtc", FUNC(i8275_device::dack_w));
-
- i8275_device &crtc(I8275(config, "crtc", XTAL(20'000'000) / 12));
- crtc.set_character_width(6);
- crtc.set_display_callback(FUNC(unior_state::display_pixels));
- crtc.drq_wr_callback().set(m_dma, FUNC(i8257_device::dreq2_w));
- crtc.set_screen("screen");
-}
-
-/* ROM definition */
-ROM_START( unior )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- ROM_LOAD( "unior.rom.d30", 0xf800, 0x0800, CRC(23a347e8) SHA1(2ef3134e2f4a696c3b52a145fa5a2d4c3487194b))
-
- ROM_REGION( 0x0840, "chargen", ROMREGION_ERASEFF )
- ROM_LOAD( "unior.fnt.d5", 0x0000, 0x0800, CRC(4f654828) SHA1(8c0ac11ea9679a439587952e4908940b67c4105e))
- // according to schematic this should be 256 bytes
- ROM_LOAD( "palette.rom.d9", 0x0800, 0x0040, BAD_DUMP CRC(b4574ceb) SHA1(f7a82c61ab137de8f6a99b0c5acf3ac79291f26a))
-
- ROM_REGION( 0x0800, "vram", ROMREGION_ERASEFF )
-ROM_END
-
-/* Driver */
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 19??, unior, 0, 0, unior, unior, unior_state, empty_init, "<unknown>", "Unior", MACHINE_WRONG_COLORS )