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mame/src/mess/drivers/nanos.c

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/***************************************************************************
Nanos
12/05/2009 Skeleton driver.
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "cpu/z80/z80daisy.h"
#include "machine/z80pio.h"
#include "machine/z80dart.h"
#include "machine/z80ctc.h"
#include "machine/upd765.h"
#include "formats/nanos_dsk.h"
#include "machine/ram.h"
class nanos_state : public driver_device
{
public:
nanos_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_pio(*this, "z80pio"),
m_pio_0(*this, "z80pio_0"),
m_pio_1(*this, "z80pio_1"),
m_sio_0(*this, "z80sio_0"),
m_sio_1(*this, "z80sio_1"),
m_ctc_0(*this, "z80ctc_0"),
m_ctc_1(*this, "z80ctc_1"),
m_fdc(*this, "upd765"),
m_key_t(*this, "keyboard_timer"),
m_ram(*this, RAM_TAG),
m_region_maincpu(*this, "maincpu"),
m_bank1(*this, "bank1"),
m_bank2(*this, "bank2"),
m_bank3(*this, "bank3"),
m_line0(*this, "LINE0"),
m_line1(*this, "LINE1"),
m_line2(*this, "LINE2"),
m_line3(*this, "LINE3"),
m_line4(*this, "LINE4"),
m_line5(*this, "LINE5"),
m_line6(*this, "LINE6"),
m_linec(*this, "LINEC")
{ }
required_device<cpu_device> m_maincpu;
required_device<z80pio_device> m_pio;
required_device<z80pio_device> m_pio_0;
required_device<z80pio_device> m_pio_1;
required_device<z80sio0_device> m_sio_0;
required_device<z80sio0_device> m_sio_1;
required_device<z80ctc_device> m_ctc_0;
required_device<z80ctc_device> m_ctc_1;
required_device<upd765a_device> m_fdc;
required_device<timer_device> m_key_t;
required_device<ram_device> m_ram;
const UINT8 *m_p_chargen;
UINT8 m_key_command;
UINT8 m_last_code;
UINT8 m_key_pressed;
DECLARE_WRITE8_MEMBER( nanos_tc_w );
DECLARE_WRITE_LINE_MEMBER( ctc_z0_w );
DECLARE_WRITE_LINE_MEMBER( ctc_z1_w );
DECLARE_WRITE_LINE_MEMBER( ctc_z2_w );
virtual void machine_reset();
virtual void machine_start();
virtual void video_start();
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback);
DECLARE_WRITE_LINE_MEMBER(z80daisy_interrupt);
DECLARE_READ8_MEMBER(nanos_port_a_r);
DECLARE_READ8_MEMBER(nanos_port_b_r);
DECLARE_WRITE8_MEMBER(nanos_port_b_w);
DECLARE_FLOPPY_FORMATS( floppy_formats );
protected:
required_memory_region m_region_maincpu;
required_memory_bank m_bank1;
required_memory_bank m_bank2;
required_memory_bank m_bank3;
required_ioport m_line0;
required_ioport m_line1;
required_ioport m_line2;
required_ioport m_line3;
required_ioport m_line4;
required_ioport m_line5;
required_ioport m_line6;
required_ioport m_linec;
UINT8 row_number(UINT8 code);
};
static ADDRESS_MAP_START(nanos_mem, AS_PROGRAM, 8, nanos_state)
AM_RANGE( 0x0000, 0x0fff ) AM_READ_BANK("bank1") AM_WRITE_BANK("bank3")
AM_RANGE( 0x1000, 0xffff ) AM_RAMBANK("bank2")
ADDRESS_MAP_END
WRITE8_MEMBER(nanos_state::nanos_tc_w)
{
m_fdc->tc_w(BIT(data,1));
}
/* Z80-CTC Interface */
WRITE_LINE_MEMBER( nanos_state::ctc_z0_w )
{
}
WRITE_LINE_MEMBER( nanos_state::ctc_z1_w )
{
}
WRITE_LINE_MEMBER( nanos_state::ctc_z2_w )
{
}
static Z80CTC_INTERFACE( ctc_intf )
{
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), /* interrupt handler */
DEVCB_DRIVER_LINE_MEMBER(nanos_state, ctc_z0_w), /* ZC/TO0 callback */
DEVCB_DRIVER_LINE_MEMBER(nanos_state, ctc_z1_w), /* ZC/TO1 callback */
DEVCB_DRIVER_LINE_MEMBER(nanos_state, ctc_z2_w) /* ZC/TO2 callback */
};
/* Z80-PIO Interface */
static Z80PIO_INTERFACE( pio1_intf )
{
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), /* callback when change interrupt status */
DEVCB_NULL, /* port A read callback */
DEVCB_NULL, /* port A write callback */
DEVCB_NULL, /* portA ready active callback */
DEVCB_NULL, /* port B read callback */
DEVCB_NULL, /* port B write callback */
DEVCB_NULL /* portB ready active callback */
};
static Z80PIO_INTERFACE( pio2_intf )
{
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), /* callback when change interrupt status */
DEVCB_NULL, /* port A read callback */
DEVCB_NULL, /* port A write callback */
DEVCB_NULL, /* portA ready active callback */
DEVCB_NULL, /* port B read callback */
DEVCB_NULL, /* port B write callback */
DEVCB_NULL /* portB ready active callback */
};
/* Z80-SIO Interface */
WRITE_LINE_MEMBER(nanos_state::z80daisy_interrupt)
{
m_maincpu->set_input_line(INPUT_LINE_IRQ0, state);
}
static Z80SIO_INTERFACE( sio1_intf )
{
0, 0, 0, 0,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(nanos_state, z80daisy_interrupt)
};
static Z80SIO_INTERFACE( sio2_intf )
{
0, 0, 0, 0,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(nanos_state, z80daisy_interrupt)
};
/* Z80 Daisy Chain */
static const z80_daisy_config nanos_daisy_chain[] =
{
{ "z80pio" },
{ "z80pio_0" },
{ "z80pio_1" },
{ "z80sio_0" },
{ "z80ctc_0" },
{ "z80sio_1" },
{ "z80ctc_1" },
{ NULL }
};
static ADDRESS_MAP_START( nanos_io , AS_IO, 8, nanos_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
/* CPU card */
AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("z80pio", z80pio_device, read, write)
/* I/O card */
AM_RANGE(0x80, 0x83) AM_DEVREADWRITE("z80pio_0", z80pio_device, read, write)
AM_RANGE(0x84, 0x87) AM_DEVREADWRITE("z80sio_0", z80sio0_device, ba_cd_r, ba_cd_w)
AM_RANGE(0x88, 0x8B) AM_DEVREADWRITE("z80pio_1", z80pio_device, read, write)
AM_RANGE(0x8C, 0x8F) AM_DEVREADWRITE("z80ctc_0", z80ctc_device, read, write)
/* FDC card */
AM_RANGE(0x92, 0x92) AM_WRITE(nanos_tc_w)
AM_RANGE(0x94, 0x95) AM_DEVICE("upd765", upd765a_device, map)
/* V24+IFSS card */
AM_RANGE(0xA0, 0xA3) AM_DEVREADWRITE("z80sio_0", z80sio0_device, ba_cd_r, ba_cd_w)
AM_RANGE(0xA4, 0xA7) AM_DEVREADWRITE("z80ctc_1", z80ctc_device, read, write)
/* 256-k RAM card I - 64k OS-Memory + 192k-RAM-Floppy */
//AM_RANGE(0xC0, 0xC7)
/* 256-k RAM card II - 64k OS-Memory + 192k-RAM-Floppy */
//AM_RANGE(0xC8, 0xCF)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( nanos )
PORT_START("LINEC")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_START("LINE0")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7)
PORT_START("LINE1")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(":") PORT_CODE(KEYCODE_QUOTE)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH)
PORT_START("LINE2")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_END)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G)
PORT_START("LINE3")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O)
PORT_START("LINE4")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W)
PORT_START("LINE5")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("\\") PORT_CODE(KEYCODE_BACKSLASH)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("~") PORT_CODE(KEYCODE_TILDE)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEL")PORT_CODE(KEYCODE_BACKSPACE)
PORT_START("LINE6")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN)
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE)
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LF") PORT_CODE(KEYCODE_RALT)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB)
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER)
INPUT_PORTS_END
void nanos_state::video_start()
{
m_p_chargen = memregion("chargen")->base();
}
UINT32 nanos_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
// static UINT8 framecnt=0;
UINT8 y,ra,chr,gfx;
UINT16 sy=0,ma=0,x;
// framecnt++;
for (y = 0; y < 25; y++)
{
for (ra = 0; ra < 10; ra++)
{
UINT16 *p = &bitmap.pix16(sy++);
for (x = ma; x < ma + 80; x++)
{
if (ra < 8)
{
chr = m_ram->pointer()[0xf800+ x];
/* get pattern of pixels for that character scanline */
gfx = m_p_chargen[(chr<<3) | ra ];
}
else
gfx = 0;
/* Display a scanline of a character (8 pixels) */
*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+=80;
}
return 0;
}
READ8_MEMBER(nanos_state::nanos_port_a_r)
{
UINT8 retVal;
if (m_key_command==0) {
return m_key_pressed;
} else {
retVal = m_last_code;
m_last_code = 0;
return retVal;
}
}
READ8_MEMBER(nanos_state::nanos_port_b_r)
{
return 0xff;
}
WRITE8_MEMBER(nanos_state::nanos_port_b_w)
{
m_key_command = BIT(data,1);
if (BIT(data,7)) {
m_bank1->set_base(m_region_maincpu->base());
} else {
m_bank1->set_base(m_ram->pointer());
}
}
UINT8 nanos_state::row_number(UINT8 code)
{
if BIT(code,0) return 0;
if BIT(code,1) return 1;
if BIT(code,2) return 2;
if BIT(code,3) return 3;
if BIT(code,4) return 4;
if BIT(code,5) return 5;
if BIT(code,6) return 6;
if BIT(code,7) return 7;
return 0;
}
TIMER_DEVICE_CALLBACK_MEMBER(nanos_state::keyboard_callback)
{
ioport_port *io_ports[] = { m_line0, m_line1, m_line2, m_line3, m_line4, m_line5, m_line6 };
int i;
UINT8 code;
UINT8 key_code = 0;
UINT8 shift = m_linec->read() & 0x02 ? 1 : 0;
UINT8 ctrl = m_linec->read() & 0x01 ? 1 : 0;
m_key_pressed = 0xff;
for(i = 0; i < 7; i++)
{
code = io_ports[i]->read();
if (code != 0)
{
if (i==0 && shift==0) {
key_code = 0x30 + row_number(code) + 8*i; // for numbers and some signs
}
if (i==0 && shift==1) {
key_code = 0x20 + row_number(code) + 8*i; // for shifted numbers
}
if (i==1 && shift==0) {
if (row_number(code) < 4) {
key_code = 0x30 + row_number(code) + 8*i; // for numbers and some signs
} else {
key_code = 0x20 + row_number(code) + 8*i; // for numbers and some signs
}
}
if (i==1 && shift==1) {
if (row_number(code) < 4) {
key_code = 0x20 + row_number(code) + 8*i; // for numbers and some signs
} else {
key_code = 0x30 + row_number(code) + 8*i; // for numbers and some signs
}
}
if (i>=2 && i<=4 && shift==1 && ctrl==0) {
key_code = 0x60 + row_number(code) + (i-2)*8; // for small letters
}
if (i>=2 && i<=4 && shift==0 && ctrl==0) {
key_code = 0x40 + row_number(code) + (i-2)*8; // for big letters
}
if (i>=2 && i<=4 && ctrl==1) {
key_code = 0x00 + row_number(code) + (i-2)*8; // for CTRL + letters
}
if (i==5 && shift==1 && ctrl==0) {
if (row_number(code)<7) {
key_code = 0x60 + row_number(code) + (i-2)*8; // for small letters
} else {
key_code = 0x40 + row_number(code) + (i-2)*8; // for signs it is switched
}
}
if (i==5 && shift==0 && ctrl==0) {
if (row_number(code)<7) {
key_code = 0x40 + row_number(code) + (i-2)*8; // for small letters
} else {
key_code = 0x60 + row_number(code) + (i-2)*8; // for signs it is switched
}
}
if (i==5 && shift==0 && ctrl==1) {
key_code = 0x00 + row_number(code) + (i-2)*8; // for letters + ctrl
}
if (i==6) {
switch(row_number(code))
{
case 0: key_code = 0x11; break;
case 1: key_code = 0x12; break;
case 2: key_code = 0x13; break;
case 3: key_code = 0x14; break;
case 4: key_code = 0x20; break; // Space
case 5: key_code = 0x0D; break; // Enter
case 6: key_code = 0x09; break; // TAB
case 7: key_code = 0x0A; break; // LF
}
}
m_last_code = key_code;
}
}
if (key_code==0){
m_key_pressed = 0xf7;
}
}
void nanos_state::machine_start()
{
m_key_pressed = 0xff;
}
void nanos_state::machine_reset()
{
address_space &space = m_maincpu->space(AS_PROGRAM);
space.install_write_bank(0x0000, 0x0fff, "bank3");
space.install_write_bank(0x1000, 0xffff, "bank2");
m_bank1->set_base(m_region_maincpu->base());
m_bank2->set_base(m_ram->pointer() + 0x1000);
m_bank3->set_base(m_ram->pointer());
machine().device<floppy_connector>("upd765:0")->get_device()->mon_w(false);
}
static Z80PIO_INTERFACE( nanos_z80pio_intf )
{
DEVCB_NULL, /* callback when change interrupt status */
DEVCB_DRIVER_MEMBER(nanos_state,nanos_port_a_r),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DRIVER_MEMBER(nanos_state,nanos_port_b_r),
DEVCB_DRIVER_MEMBER(nanos_state,nanos_port_b_w),
DEVCB_NULL
};
FLOPPY_FORMATS_MEMBER( nanos_state::floppy_formats )
FLOPPY_NANOS_FORMAT
FLOPPY_FORMATS_END
static SLOT_INTERFACE_START( nanos_floppies )
SLOT_INTERFACE( "525hd", FLOPPY_525_HD )
SLOT_INTERFACE_END
/* F4 Character Displayer */
static const gfx_layout nanos_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( nanos )
GFXDECODE_ENTRY( "chargen", 0x0000, nanos_charlayout, 0, 1 )
GFXDECODE_END
static MACHINE_CONFIG_START( nanos, nanos_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(nanos_mem)
MCFG_CPU_IO_MAP(nanos_io)
MCFG_CPU_CONFIG(nanos_daisy_chain)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_UPDATE_DRIVER(nanos_state, screen_update)
MCFG_SCREEN_SIZE(80*8, 25*10)
MCFG_SCREEN_VISIBLE_AREA(0,80*8-1,0,25*10-1)
MCFG_GFXDECODE(nanos)
MCFG_PALETTE_LENGTH(2)
MCFG_PALETTE_INIT(black_and_white)
/* devices */
MCFG_Z80CTC_ADD( "z80ctc_0", XTAL_4MHz, ctc_intf)
MCFG_Z80CTC_ADD( "z80ctc_1", XTAL_4MHz, ctc_intf)
MCFG_Z80PIO_ADD( "z80pio_0", XTAL_4MHz, pio1_intf)
MCFG_Z80PIO_ADD( "z80pio_1", XTAL_4MHz, pio2_intf)
MCFG_Z80SIO0_ADD( "z80sio_0", XTAL_4MHz, sio1_intf)
MCFG_Z80SIO0_ADD( "z80sio_1", XTAL_4MHz, sio2_intf)
MCFG_Z80PIO_ADD( "z80pio", XTAL_4MHz, nanos_z80pio_intf )
/* UPD765 */
MCFG_UPD765A_ADD("upd765", false, true)
MCFG_FLOPPY_DRIVE_ADD("upd765:0", nanos_floppies, "525hd", nanos_state::floppy_formats)
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard_timer", nanos_state, keyboard_callback, attotime::from_hz(24000))
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( nanos )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "k7634_1.rom", 0x0000, 0x0800, CRC(8e34e6ac) SHA1(fd342f6effe991823c2a310737fbfcba213c4fe3))
ROM_LOAD( "k7634_2.rom", 0x0800, 0x0180, CRC(4e01b02b) SHA1(8a279da886555c7470a1afcbb3a99693ea13c237))
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "zg_nanos.rom", 0x0000, 0x0800, CRC(5682d3f9) SHA1(5b738972c815757821c050ee38b002654f8da163))
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1985, nanos, 0, 0, nanos, nanos, driver_device, 0, "Ingenieurhochschule fur Seefahrt Warnemunde/Wustrow", "NANOS", GAME_NOT_WORKING | GAME_NO_SOUND)
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