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-rw-r--r--src/mame/drivers/argo.cpp524
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diff --git a/src/mame/drivers/argo.cpp b/src/mame/drivers/argo.cpp
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--- a/src/mame/drivers/argo.cpp
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@@ -1,524 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Robbbert
-/***************************************************************************************
-
-Argo
-
-2011-03-16 Skeleton driver.
-
-There are no manuals, diagrams, or anything else available afaik.
-The entire driver is guesswork, however it appears to be related to UNIOR.
-
-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.
-
-Commands: same as UNIOR
-
-ToDo:
-- Add remaining devices, most likely 8255.
-- There is no obvious evidence of sound.
-- Need dump of the correct chargen.
-- Find out if "m_eram" is supposed to exist, if so, what is it for?
-- What character should show in the top left corner?
-- our dma doesn't emulate the update_flag, so had to use a hack for the L command
-- cursor is one character further to the right than it should be, used another hack
-
-****************************************************************************************/
-
-#include "emu.h"
-#include "cpu/z80/z80.h"
-#include "machine/i8251.h"
-#include "machine/pit8253.h"
-#include "machine/i8257.h"
-#include "video/i8275.h"
-#include "imagedev/cassette.h"
-//#include "sound/spkrdev.h"
-#include "speaker.h"
-#include "machine/timer.h"
-#include "emupal.h"
-#include "screen.h"
-
-
-class argo_state : public driver_device
-{
-public:
- argo_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_rom(*this, "maincpu")
- , m_ram(*this, "mainram")
- , m_p_chargen(*this, "chargen")
- , m_uart(*this, "uart")
- , m_pit(*this, "pit")
- , m_dma(*this, "dma")
- , m_crtc(*this, "crtc")
- , m_cass(*this, "cassette")
- , m_palette(*this, "palette")
- , m_io_keyboard(*this, "X%d", 0)
- { }
-
- void argo(machine_config &config);
-
-private:
- virtual void machine_reset() override;
- virtual void machine_start() override;
- void argo_videoram_w(offs_t offset, u8 data);
- u8 argo_io_r(offs_t offset);
- void argo_io_w(offs_t offset, u8 data);
- DECLARE_WRITE_LINE_MEMBER(z0_w);
- DECLARE_WRITE_LINE_MEMBER(hrq_w);
- void argo_palette(palette_device &palette) const;
- u8 dma_r(offs_t offset);
- I8275_DRAW_CHARACTER_MEMBER(display_pixels);
- TIMER_DEVICE_CALLBACK_MEMBER(kansas_r);
-
- void io_map(address_map &map);
- void mem_map(address_map &map);
-
- memory_passthrough_handler *m_rom_shadow_tap;
- required_device<z80_device> m_maincpu;
- required_region_ptr<u8> m_rom;
- required_shared_ptr<u8> m_ram;
- required_region_ptr<u8> m_p_chargen;
- required_device<i8251_device> m_uart;
- required_device<pit8253_device> m_pit;
- required_device<i8257_device> m_dma;
- required_device<i8275_device> m_crtc;
- required_device<cassette_image_device> m_cass;
- required_device<palette_device> m_palette;
- required_ioport_array<11> m_io_keyboard;
- u8 m_framecnt;
- bool m_ram_ctrl;
- u8 m_scroll_ctrl;
- bool m_txe, m_txd, m_rts, m_casspol;
- u8 m_cass_data[4];
- std::unique_ptr<u8[]> m_vram;
- std::unique_ptr<u8[]> m_eram;
-};
-
-// write to videoram if following 'out b9,61' otherwise write to the unknown 'extra' ram
-void argo_state::argo_videoram_w(offs_t offset, u8 data)
-{
- if (m_ram_ctrl)
- m_vram[offset] = data;
- else
- m_eram[offset] = data;
-}
-
-u8 argo_state::argo_io_r(offs_t offset)
-{
- u8 low_io = offset;
-
- switch (low_io)
- {
- case 0xA1: // keyboard
- offset >>= 8;
- if (offset < 11)
- return m_io_keyboard[offset]->read();
- else
- return 0xff;
-
- case 0xA0:
- case 0xA2:
- case 0xA4:
- case 0xA6:
- offset >>= 1;
- return m_pit->read(offset&3);
-
- case 0xC0:
- case 0xC4:
- offset >>= 2;
- return m_crtc->read(offset&1);
-
- case 0xE8: // wants bit 4 low then high
- {
- u8 data = m_dma->read(8);
- data |= (m_framecnt << 4); // hack because dma update_flag is not emulated
- return data;
- }
-
- default:
- logerror("%s: In %X\n",machine().describe_context(),low_io);
- return 0xff;
- }
-}
-
-void argo_state::argo_io_w(offs_t offset, u8 data)
-{
- switch (offset)
- {
- case 0xA0:
- case 0xA2:
- case 0xA4:
- case 0xA6:
- offset >>= 1;
- m_pit->write(offset&3, data);
- break;
-
- case 0xA1: // prep scroll step 1
- m_scroll_ctrl = (data == 0x61);
- break;
-
- case 0xA9: // prep scroll step 2
- if ((m_scroll_ctrl == 1) && (data == 0x61))
- m_scroll_ctrl++;
- break;
-
- case 0xB9: // switch between videoram and extraram
- m_ram_ctrl = (data == 0x61);
- break;
-
- case 0xC0:
- case 0xC4:
- offset >>= 2;
- m_crtc->write(offset&1, data);
- break;
-
- case 0xE8: // hardware scroll
- if ((m_scroll_ctrl == 2) & (data == 0xe3))
- {
- memmove(m_vram.get(), m_vram.get()+80, 24*80);
- m_scroll_ctrl = 0;
- }
- m_dma->write(8, data);
- break;
-
- default:
- logerror("%s: Out %X,%X\n",machine().describe_context(),offset,data);
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER( argo_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]++;
-
- u8 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(argo_state::z0_w)
-{
- // write - incoming 2400Hz
- m_uart->write_txc(state);
- if (!m_txe)
- {
- m_cass->output((m_txd ^ state) ? -1.0 : 1.0);
- }
-
- // read - incoming 2514Hz
-}
-
-u8 argo_state::dma_r(offs_t offset)
-{
- if (offset < 0xf800)
- return m_maincpu->space(AS_PROGRAM).read_byte(offset);
- else
- return m_vram[offset & 0x7ff];
-}
-
-WRITE_LINE_MEMBER( argo_state::hrq_w )
-{
- m_maincpu->set_input_line(INPUT_LINE_HALT, state);
- m_dma->hlda_w(state);
-}
-
-I8275_DRAW_CHARACTER_MEMBER(argo_state::display_pixels)
-{
- if ((x == 0) && (y == 0))
- m_framecnt++;
-
- const rgb_t *palette = m_palette->palette()->entry_list_raw();
- u8 gfx = m_p_chargen[(linecount & 15) | (charcode << 4)];
-
- if (vsp)
- gfx = 0;
-
- if (lten)
- {
- gfx = 0xff;
- if (x > 6)
- x-=6; // hack to fix cursor position
- }
-
- if (rvv)
- gfx ^= 0xff;
-
- for(u8 i=0;i<7;i++)
- bitmap.pix(y, x + i) = palette[BIT(gfx, 6-i) ? (hlgt ? 2 : 1) : 0];
-}
-
-static constexpr rgb_t argo_pens[3] =
-{
- { 0x00, 0x00, 0x00 }, // black
- { 0xa0, 0xa0, 0xa0 }, // white
- { 0xff, 0xff, 0xff } // highlight
-};
-
-void argo_state::argo_palette(palette_device &palette) const
-{
- palette.set_pen_colors(0, argo_pens);
-}
-
-
-/* F4 Character Displayer */
-static const gfx_layout charlayout =
-{
- 8, 9, /* 8 x 9 characters */
- 512, /* 512 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 },
- 8*16 /* every char takes 16 bytes */
-};
-
-static GFXDECODE_START( gfx_argo )
- GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
-GFXDECODE_END
-
-void argo_state::mem_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0xf7ff).ram().share("mainram");
- map(0xf800, 0xffff).rom().region("maincpu", 0).w(FUNC(argo_state::argo_videoram_w));
-}
-
-void argo_state::io_map(address_map &map)
-{
- map(0x0000, 0xFFFF).r(FUNC(argo_state::argo_io_r));
- map(0x0000, 0x00ff).mirror(0xff00).w(FUNC(argo_state::argo_io_w));
- map(0x00c1, 0x00c1).mirror(0xff00).rw(m_uart, FUNC(i8251_device::data_r), FUNC(i8251_device::data_w));
- map(0x00c3, 0x00c3).mirror(0xff00).rw(m_uart, FUNC(i8251_device::status_r), FUNC(i8251_device::control_w));
- map(0x00e0, 0x00e7).mirror(0xff00).rw(m_dma, FUNC(i8257_device::read), FUNC(i8257_device::write));
-}
-
-/* Input ports */
-static INPUT_PORTS_START( argo ) // Keyboard was worked out by trial & error;'F' keys produce symbols
- PORT_START("X0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR('-')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F10) // J
- 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("LShift") PORT_CODE(KEYCODE_LSHIFT)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8_PAD) PORT_CHAR('8')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9')
- PORT_START("X1")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
- 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("RShift") PORT_CODE(KEYCODE_RSHIFT)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("??") PORT_CODE(KEYCODE_F2)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR('.')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("+") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+')
- PORT_START("X2")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("??") PORT_CODE(KEYCODE_F12)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR('2')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3_PAD) PORT_CHAR('3')
- 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_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4_PAD) PORT_CHAR('4')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6')
- 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_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('M')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F11) // K
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) // H
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F9) // 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_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) // G
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) // F
- PORT_START("X6")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("*") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('*')
- 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_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\\") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\')
- 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_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("`") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
- PORT_START("X9")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\'") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
- PORT_START("X10")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') // if L is the first character, computer hangs
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
-INPUT_PORTS_END
-
-
-
-void argo_state::machine_reset()
-{
- 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;
- });
-}
-
-void argo_state::machine_start()
-{
- m_vram = make_unique_clear<u8[]>(0x0800);
- m_eram = make_unique_clear<u8[]>(0x0800);
- save_pointer(NAME(m_vram), 0x0800);
- save_pointer(NAME(m_eram), 0x0800);
- save_item(NAME(m_framecnt));
- save_item(NAME(m_ram_ctrl));
- save_item(NAME(m_scroll_ctrl));
- save_item(NAME(m_txe));
- save_item(NAME(m_txd));
- save_item(NAME(m_rts));
- save_item(NAME(m_casspol));
- save_item(NAME(m_cass_data));
-}
-
-
-void argo_state::argo(machine_config &config)
-{
- /* basic machine hardware */
- Z80(config, m_maincpu, 3500000); // unknown frequency
- m_maincpu->set_addrmap(AS_PROGRAM, &argo_state::mem_map);
- m_maincpu->set_addrmap(AS_IO, &argo_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_full();
- screen.set_screen_update("crtc", FUNC(i8275_device::screen_update));
- GFXDECODE(config, "gfxdecode", m_palette, gfx_argo);
- PALETTE(config, m_palette, FUNC(argo_state::argo_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(argo_state::kansas_r), attotime::from_hz(38400));
-
- /* Devices */
- I8251(config, m_uart, 0);
- 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>(1689600); // this gives the 2400Hz required by the cassette
- m_pit->out_handler<0>().set(FUNC(argo_state::z0_w));
- m_pit->set_clk<1>(0);
- m_pit->set_clk<2>(0);
-
- I8257(config, m_dma, XTAL(20'000'000) / 9); // unknown frequency
- m_dma->out_hrq_cb().set(FUNC(argo_state::hrq_w));
- m_dma->in_memr_cb().set(FUNC(argo_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)); // unknown frequency
- crtc.set_character_width(6);
- crtc.set_display_callback(FUNC(argo_state::display_pixels));
- crtc.drq_wr_callback().set(m_dma, FUNC(i8257_device::dreq2_w));
- crtc.set_screen("screen");
-}
-
-/* ROM definition */
-ROM_START( argo )
- ROM_REGION( 0x0800, "maincpu", 0 )
- ROM_LOAD( "argo.rom", 0x0000, 0x0800, CRC(4c4c045b) SHA1(be2b97728cc190d4a8bd27262ba9423f252d31a3) )
-
- /* character generator not dumped, using the one from 'c10' for now */
- ROM_REGION( 0x2000, "chargen", 0 )
- ROM_LOAD( "c10_char.bin", 0x0000, 0x2000, BAD_DUMP CRC(cb530b6f) SHA1(95590bbb433db9c4317f535723b29516b9b9fcbf))
-ROM_END
-
-/* Driver */
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1986, argo, unior, 0, argo, argo, argo_state, empty_init, "<unknown>", "Argo", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )