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-rw-r--r--src/mame/drivers/alphatro.cpp518
1 files changed, 518 insertions, 0 deletions
diff --git a/src/mame/drivers/alphatro.cpp b/src/mame/drivers/alphatro.cpp
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index 00000000000..127389e6a9c
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+++ b/src/mame/drivers/alphatro.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Barry Rodewald, Robbbert
+/***************************************************************************
+
+ Triumph-Adler (or Royal) Alphatronic PC
+
+ skeleton driver
+
+ z80 + HD46505SP as a CRTC
+
+ Other chips: 8251, 8257, 8259
+ Crystals: 16MHz, 17.73447MHz
+ Floppy format: 13cm, 2 sides, 40 tracks, 16 sectors, 256 bytes = 320kb.
+ FDC (uPD765) is in a plug-in module, with an undumped rom.
+
+ Has a socket for monochrome (to the standard amber monitor),
+ and another for RGB. We emulate this with a configuration switch.
+
+ This machine has 64k RAM, the ROMs being copied into RAM when
+ needed.
+
+ There are several mystery ports which might be connected to the floppy
+ disk system. These are Port 30 (in and out), Port 20 (out) and certain
+ bits of Port 10 (in). This unit communicates via a simple parallel
+ interface.
+
+ Port 10 bit 6 when high switches A000-DFFF over to roms that are in
+ a cart which is plugged into the RomPack socket. If C3 is found at
+ A000 or C000, then a jump is made to that address. It is however
+ possible that one of these addresses might be for the rom in the
+ floppy controller unit.
+
+
+ ToDo:
+ - Add fdc, then connect up software list
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "video/mc6845.h"
+#include "machine/i8251.h"
+#include "machine/clock.h"
+#include "imagedev/cassette.h"
+#include "sound/beep.h"
+#include "sound/wave.h"
+#include "machine/ram.h"
+#include "softlist.h"
+
+#define MAIN_CLOCK XTAL_4MHz
+
+
+class alphatro_state : public driver_device
+{
+public:
+ enum
+ {
+ TIMER_SYSTEM
+ };
+
+ alphatro_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_p_videoram(*this, "videoram")
+ , m_maincpu(*this, "maincpu")
+ , m_crtc(*this, "crtc")
+ , m_usart(*this, "usart")
+ , m_cass(*this, "cassette")
+ , m_beep(*this, "beeper")
+ , m_p_ram(*this, "main_ram"),
+ m_palette(*this, "palette")
+ { }
+
+ DECLARE_READ8_MEMBER(port10_r);
+ DECLARE_WRITE8_MEMBER(port10_w);
+ DECLARE_INPUT_CHANGED_MEMBER(alphatro_break);
+ DECLARE_WRITE_LINE_MEMBER(txdata_callback);
+ DECLARE_WRITE_LINE_MEMBER(write_usart_clock);
+ DECLARE_PALETTE_INIT(alphatro);
+ TIMER_DEVICE_CALLBACK_MEMBER(timer_c);
+ TIMER_DEVICE_CALLBACK_MEMBER(timer_p);
+ MC6845_UPDATE_ROW(crtc_update_row);
+ required_shared_ptr<UINT8> m_p_videoram;
+ UINT8 *m_p_chargen;
+ UINT8 m_flashcnt;
+
+private:
+ UINT8 m_timer_bit;
+ UINT8 m_cass_data[4];
+ bool m_cass_state;
+ bool m_cassold;
+ emu_timer* m_sys_timer;
+ virtual void video_start();
+ virtual void machine_start();
+ virtual void machine_reset();
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+ required_device<cpu_device> m_maincpu;
+ required_device<mc6845_device> m_crtc;
+ required_device<i8251_device> m_usart;
+ required_device<cassette_image_device> m_cass;
+ required_device<beep_device> m_beep;
+ required_shared_ptr<UINT8> m_p_ram;
+public:
+ required_device<palette_device> m_palette;
+};
+
+READ8_MEMBER( alphatro_state::port10_r )
+{
+ //return (space.machine().device<screen_device>("screen")->vblank() ? 0x00 : 0x80);
+ return m_timer_bit;
+}
+
+WRITE8_MEMBER( alphatro_state::port10_w )
+{
+// Bit 0 -> 0 = 40 cols; 1 = 80 cols
+// Bit 1 ? each keystroke, and a lot when it scrolls
+// Bit 2 ? after a cload
+// Bit 3 -> cassette relay
+// Bit 4 -> BEEP
+// Bit 6 -> 1 = select ROM pack
+
+ data &= 0xfe;
+
+ m_beep->set_state(BIT(data, 4));
+
+ m_cass->change_state( BIT(data, 3) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
+
+ if (BIT(data,2))
+ m_cass_state = 1;
+}
+
+void alphatro_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
+{
+ switch(id)
+ {
+ case TIMER_SYSTEM:
+ m_timer_bit ^= 0x80;
+ break;
+ default:
+ assert_always(FALSE, "Unknown id in alphatro_state::device_timer");
+ }
+}
+
+WRITE_LINE_MEMBER( alphatro_state::txdata_callback )
+{
+ m_cass_state = state;
+}
+
+WRITE_LINE_MEMBER( alphatro_state::write_usart_clock )
+{
+ m_usart->write_txc(state);
+ m_usart->write_rxc(state);
+}
+
+void alphatro_state::video_start()
+{
+ m_p_chargen = memregion("chargen")->base();
+}
+
+MC6845_UPDATE_ROW( alphatro_state::crtc_update_row )
+{
+ const rgb_t *pens = m_palette->palette()->entry_list_raw();
+ bool palette = BIT(ioport("CONFIG")->read(), 5);
+ if (y==0) m_flashcnt++;
+ bool inv;
+ UINT8 chr,gfx,attr,bg,fg;
+ UINT16 mem,x;
+ UINT32 *p = &bitmap.pix32(y);
+
+ for (x = 0; x < x_count; x++)
+ {
+ inv = (x == cursor_x);
+ mem = (ma + x) & 0x7ff;
+ chr = m_p_videoram[mem];
+ attr = m_p_videoram[mem | 0x800];
+ bg = (palette) ? 8 : attr & 7; // amber or RGB
+ fg = (palette) ? 0 : (attr & 0x38) >> 3;
+
+ if BIT(attr, 7) // reverse video
+ {
+ inv ^= 1;
+ chr &= 0x7f;
+ }
+
+ if (BIT(attr, 6) & BIT(m_flashcnt, 4)) // flashing
+ {
+ inv ^= 1;
+ }
+
+ /* get pattern of pixels for that character scanline */
+ gfx = m_p_chargen[(chr<<4) | ra];
+
+ if (inv)
+ {
+ UINT8 t = bg;
+ bg = fg;
+ fg = t;
+ }
+
+ /* Display a scanline of a character (8 pixels) */
+ *p++ = pens[BIT(gfx, 7) ? fg : bg];
+ *p++ = pens[BIT(gfx, 6) ? fg : bg];
+ *p++ = pens[BIT(gfx, 5) ? fg : bg];
+ *p++ = pens[BIT(gfx, 4) ? fg : bg];
+ *p++ = pens[BIT(gfx, 3) ? fg : bg];
+ *p++ = pens[BIT(gfx, 2) ? fg : bg];
+ *p++ = pens[BIT(gfx, 1) ? fg : bg];
+ *p++ = pens[BIT(gfx, 0) ? fg : bg];
+ }
+}
+
+INPUT_CHANGED_MEMBER( alphatro_state::alphatro_break )
+{
+ m_maincpu->set_input_line(INPUT_LINE_IRQ0, HOLD_LINE);
+}
+
+static ADDRESS_MAP_START( alphatro_map, AS_PROGRAM, 8, alphatro_state )
+ AM_RANGE(0x0000, 0xefff) AM_RAM AM_SHARE("main_ram")
+ AM_RANGE(0xf000, 0xffff) AM_RAM AM_SHARE("videoram")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( alphatro_io, AS_IO, 8, alphatro_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x10, 0x10) AM_READWRITE(port10_r,port10_w)
+ AM_RANGE(0x20, 0x20) AM_READ_PORT("X0")
+ AM_RANGE(0x21, 0x21) AM_READ_PORT("X1")
+ AM_RANGE(0x22, 0x22) AM_READ_PORT("X2")
+ AM_RANGE(0x23, 0x23) AM_READ_PORT("X3")
+ AM_RANGE(0x24, 0x24) AM_READ_PORT("X4")
+ AM_RANGE(0x25, 0x25) AM_READ_PORT("X5")
+ AM_RANGE(0x26, 0x26) AM_READ_PORT("X6")
+ AM_RANGE(0x27, 0x27) AM_READ_PORT("X7")
+ AM_RANGE(0x28, 0x28) AM_READ_PORT("X8")
+ AM_RANGE(0x29, 0x29) AM_READ_PORT("X9")
+ AM_RANGE(0x2a, 0x2a) AM_READ_PORT("XA")
+ AM_RANGE(0x2b, 0x2b) AM_READ_PORT("XB")
+ //AM_RANGE(0x30, 0x30) unknown
+ // USART for cassette reading and writing
+ AM_RANGE(0x40, 0x40) AM_DEVREADWRITE("usart", i8251_device, data_r, data_w)
+ AM_RANGE(0x41, 0x41) AM_DEVREADWRITE("usart", i8251_device, status_r, control_w)
+ // CRTC - HD46505 / HD6845SP
+ AM_RANGE(0x50, 0x50) AM_DEVWRITE("crtc", mc6845_device, address_w)
+ AM_RANGE(0x51, 0x51) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w)
+ADDRESS_MAP_END
+
+static INPUT_PORTS_START( alphatro )
+ PORT_START("X0")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD))
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD))
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD))
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD))
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD))
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD))
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD))
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD))
+
+ PORT_START("X1")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD))
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD))
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD)
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad - /") PORT_CODE(KEYCODE_MINUS_PAD)
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad =") PORT_CODE(KEYCODE_ASTERISK) // keypad equals
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Keypad + x") PORT_CODE(KEYCODE_PLUS_PAD)
+
+ PORT_START("X2")
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
+
+ PORT_START("X3")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
+
+ PORT_START("X4")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
+
+ PORT_START("X5")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
+
+ PORT_START("X6")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('_')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xa3)
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
+
+ PORT_START("X7")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("^ ~") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("@ `") PORT_CODE(KEYCODE_DEL) PORT_CHAR('@') PORT_CHAR('`')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
+
+ PORT_START("X8")
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(32)
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("; +") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
+
+ PORT_START("X9")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(UP))
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Lock") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
+
+ PORT_START("XA")
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("INS DEL") PORT_CODE(KEYCODE_BACKSPACE)
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Graph") PORT_CODE(KEYCODE_PGUP)
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Clear Home") PORT_CODE(KEYCODE_HOME)
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
+
+ PORT_START("XB")
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6)
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
+
+ PORT_START("other")
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_ESC) PORT_CHANGED_MEMBER(DEVICE_SELF,alphatro_state,alphatro_break,0)
+
+ PORT_START("CONFIG")
+ PORT_CONFNAME( 0x20, 0x00, "Monitor")
+ PORT_CONFSETTING( 0x00, "RGB")
+ PORT_CONFSETTING( 0x20, "Amber")
+INPUT_PORTS_END
+
+static const gfx_layout charlayout =
+{
+ 8,16,
+ RGN_FRAC(1,1),
+ 1,
+ { RGN_FRAC(0,1) },
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
+ 8*16
+};
+
+static GFXDECODE_START( alphatro )
+ GFXDECODE_ENTRY( "chargen", 0, charlayout, 0, 4 )
+GFXDECODE_END
+
+void alphatro_state::machine_start()
+{
+ m_sys_timer = timer_alloc(TIMER_SYSTEM);
+}
+
+void alphatro_state::machine_reset()
+{
+ // do what the IPL does
+ UINT8* ROM = memregion("roms")->base();
+ m_maincpu->set_pc(0xe000);
+ // If BASIC is missing then it boots into the Monitor
+ memcpy(m_p_ram, ROM, 0x6000); // Copy BASIC to RAM
+ // Top half of this rom has keyboard tables and appears to be unused
+ memcpy(m_p_ram+0xe000, ROM+0xe000, 0x1000); // copy BIOS + Monitor to RAM
+
+ // probably not correct, exact meaning of port is unknown, vblank/vsync is too slow.
+ m_sys_timer->adjust(attotime::from_usec(10),0,attotime::from_usec(10));
+ m_timer_bit = 0;
+ m_cass_data[0] = m_cass_data[1] = m_cass_data[2] = m_cass_data[3] = 0;
+ m_cass_state = 0;
+ m_cassold = 0;
+ m_usart->write_rxd(0);
+ m_beep->set_state(0);
+ m_beep->set_frequency(950); /* piezo-device needs to be measured */
+}
+
+PALETTE_INIT_MEMBER(alphatro_state, alphatro)
+{
+ // RGB colours
+ palette.set_pen_color(0, 0x00, 0x00, 0x00);
+ palette.set_pen_color(1, 0x00, 0x00, 0xff);
+ palette.set_pen_color(2, 0xff, 0x00, 0x00);
+ palette.set_pen_color(3, 0xff, 0x00, 0xff);
+ palette.set_pen_color(4, 0x00, 0xff, 0x00);
+ palette.set_pen_color(5, 0x00, 0xff, 0xff);
+ palette.set_pen_color(6, 0xff, 0xff, 0x00);
+ palette.set_pen_color(7, 0xff, 0xff, 0xff);
+ // Amber
+ palette.set_pen_color(8, 0xf7, 0xaa, 0x00);
+}
+
+
+TIMER_DEVICE_CALLBACK_MEMBER(alphatro_state::timer_c)
+{
+ m_cass_data[3]++;
+
+ if (m_cass_state != m_cassold)
+ {
+ m_cass_data[3] = 0;
+ m_cassold = m_cass_state;
+ }
+
+ if (m_cass_state)
+ m_cass->output(BIT(m_cass_data[3], 0) ? -1.0 : +1.0); // 2400Hz
+ else
+ m_cass->output(BIT(m_cass_data[3], 1) ? -1.0 : +1.0); // 1200Hz
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(alphatro_state::timer_p)
+{
+ /* cassette - turn 1200/2400Hz to a bit */
+ m_cass_data[1]++;
+ UINT8 cass_ws = (m_cass->input() > +0.03) ? 1 : 0;
+
+ if (cass_ws != m_cass_data[0])
+ {
+ m_cass_data[0] = cass_ws;
+ m_usart->write_rxd((m_cass_data[1] < 12) ? 1 : 0);
+ m_cass_data[1] = 0;
+ }
+}
+
+static MACHINE_CONFIG_START( alphatro, alphatro_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",Z80,MAIN_CLOCK)
+ MCFG_CPU_PROGRAM_MAP(alphatro_map)
+ MCFG_CPU_IO_MAP(alphatro_io)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) // not correct
+ MCFG_SCREEN_UPDATE_DEVICE("crtc", mc6845_device, screen_update)
+ MCFG_SCREEN_SIZE(32*8, 32*8)
+ MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", alphatro)
+ MCFG_PALETTE_ADD("palette", 9) // 8 colours + amber
+ MCFG_PALETTE_INIT_OWNER(alphatro_state, alphatro)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("beeper", BEEP, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
+ MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ /* Devices */
+ MCFG_MC6845_ADD("crtc", MC6845, "screen", XTAL_12_288MHz / 8) // clk unknown
+ MCFG_MC6845_SHOW_BORDER_AREA(false)
+ MCFG_MC6845_CHAR_WIDTH(8)
+ MCFG_MC6845_UPDATE_ROW_CB(alphatro_state, crtc_update_row)
+
+ MCFG_DEVICE_ADD("usart", I8251, 0)
+ MCFG_I8251_TXD_HANDLER(WRITELINE(alphatro_state, txdata_callback))
+
+ MCFG_DEVICE_ADD("usart_clock", CLOCK, 19218) // 19218 to load a real tape, 19222 to load a tape made by this driver
+ MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(alphatro_state, write_usart_clock))
+
+ MCFG_CASSETTE_ADD("cassette")
+ MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_PLAY | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED)
+ MCFG_CASSETTE_INTERFACE("alphatro_cass")
+
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("timer_c", alphatro_state, timer_c, attotime::from_hz(4800))
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("timer_p", alphatro_state, timer_p, attotime::from_hz(40000))
+
+ MCFG_RAM_ADD("ram")
+ MCFG_RAM_DEFAULT_SIZE("64K")
+
+ // software list
+ MCFG_SOFTWARE_LIST_ADD("flop_list", "alphatro_flop")
+MACHINE_CONFIG_END
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( alphatro )
+ ROM_REGION( 0x10000, "roms", ROMREGION_ERASE00)
+ ROM_LOAD( "613256.ic-1058", 0x0000, 0x6000, CRC(ceea4cb3) SHA1(b332dea0a2d3bb2978b8422eb0723960388bb467) )
+ ROM_LOAD( "2764.ic-1038", 0xe000, 0x2000, CRC(e337db3b) SHA1(6010bade6a21975636383179903b58a4ca415e49) )
+
+ ROM_REGION( 0x10000, "user1", ROMREGION_ERASE00 )
+ ROM_LOAD( "ipl.bin", 0x8000, 0x2000, NO_DUMP )
+
+ ROM_REGION( 0x1000, "chargen", 0 )
+ ROM_LOAD( "2732.ic-1067", 0x0000, 0x1000, CRC(61f38814) SHA1(35ba31c58a10d5bd1bdb202717792ca021dbe1a8) )
+ROM_END
+
+COMP( 1983, alphatro, 0, 0, alphatro, alphatro, driver_device, 0, "Triumph-Adler", "Alphatronic PC", MACHINE_NOT_WORKING )