// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************
Nanos
12/05/2009 Skeleton driver.
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "imagedev/floppy.h"
#include "machine/z80daisy.h"
#include "machine/ram.h"
#include "machine/timer.h"
#include "machine/upd765.h"
#include "machine/z80ctc.h"
#include "machine/z80sio.h"
#include "machine/z80pio.h"
#include "formats/nanos_dsk.h"
#include "emupal.h"
#include "screen.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_floppy(*this, "upd765:0")
, m_key_t(*this, "keyboard_timer")
, m_ram(*this, RAM_TAG)
, m_region_maincpu(*this, "maincpu")
, m_p_chargen(*this, "chargen")
, m_bank1(*this, "bank1")
, m_bank2(*this, "bank2")
, m_bank3(*this, "bank3")
, m_lines(*this, "LINE%u", 0U)
, m_linec(*this, "LINEC")
{ }
void nanos(machine_config &config);
protected:
virtual void machine_reset() override;
virtual void machine_start() override;
private:
DECLARE_WRITE8_MEMBER(tc_w);
DECLARE_WRITE_LINE_MEMBER(ctc_z0_w);
DECLARE_WRITE_LINE_MEMBER(ctc_z1_w);
DECLARE_WRITE_LINE_MEMBER(ctc_z2_w);
TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback);
DECLARE_WRITE_LINE_MEMBER(z80daisy_interrupt);
DECLARE_READ8_MEMBER(port_a_r);
DECLARE_READ8_MEMBER(port_b_r);
DECLARE_WRITE8_MEMBER(port_b_w);
DECLARE_FLOPPY_FORMATS(floppy_formats);
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void io_map(address_map &map);
void mem_map(address_map &map);
uint8_t m_key_command;
uint8_t m_last_code;
uint8_t m_key_pressed;
uint8_t row_number(uint8_t code);
required_device<z80_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<z80sio_device> m_sio_0;
required_device<z80sio_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<floppy_connector> m_floppy;
required_device<timer_device> m_key_t;
required_device<ram_device> m_ram;
required_memory_region m_region_maincpu;
required_region_ptr<u8> m_p_chargen;
required_memory_bank m_bank1;
required_memory_bank m_bank2;
required_memory_bank m_bank3;
required_ioport_array<7> m_lines;
required_ioport m_linec;
};
void nanos_state::mem_map(address_map &map)
{
map(0x0000, 0x0fff).bankr(m_bank1).bankw(m_bank3);
map(0x1000, 0xffff).bankrw(m_bank2);
}
WRITE8_MEMBER(nanos_state::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)
{
}
/* Z80-SIO Interface */
WRITE_LINE_MEMBER(nanos_state::z80daisy_interrupt)
{
m_maincpu->set_input_line(INPUT_LINE_IRQ0, state);
}
/* Z80 Daisy Chain */
static const z80_daisy_config nanos_daisy_chain[] =
{
{ "z80pio" },
{ "z80pio_0" },
{ "z80pio_1" },
{ "z80sio_0" },
{ "z80ctc_0" },
{ "z80sio_1" },
{ "z80ctc_1" },
{ nullptr }
};
void nanos_state::io_map(address_map &map)
{
map.unmap_value_high();
map.global_mask(0xff);
/* CPU card */
map(0x00, 0x03).rw(m_pio, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
/* I/O card */
map(0x80, 0x83).rw(m_pio_0, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
map(0x84, 0x87).rw(m_sio_0, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
map(0x88, 0x8B).rw(m_pio_1, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
map(0x8C, 0x8F).rw(m_ctc_0, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
/* FDC card */
map(0x92, 0x92).w(FUNC(nanos_state::tc_w));
map(0x94, 0x95).m(m_fdc, FUNC(upd765a_device::map));
/* V24+IFSS card */
map(0xA0, 0xA3).rw(m_sio_0, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
map(0xA4, 0xA7).rw(m_ctc_1, FUNC(z80ctc_device::read), FUNC(z80ctc_device::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)
}
/* 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
uint32_t nanos_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
// static uint8_t framecnt=0;
uint8_t gfx;
uint16_t sy=0,ma=0,x;
// framecnt++;
for (uint8_t y = 0; y < 25; y++)
{
for (uint8_t ra = 0; ra < 10; ra++)
{
uint16_t *p = &bitmap.pix16(sy++);
for (x = ma; x < ma + 80; x++)
{
if (ra < 8)
{
uint8_t 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::port_a_r)
{
if (m_key_command==0) {
return m_key_pressed;
} else {
uint8_t retVal = m_last_code;
m_last_code = 0;
return retVal;
}
}
READ8_MEMBER(nanos_state::port_b_r)
{
return 0xff;
}
WRITE8_MEMBER(nanos_state::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_t nanos_state::row_number(uint8_t 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)
{
uint8_t key_code = 0;
uint8_t shift = m_linec->read() & 0x02 ? 1 : 0;
uint8_t ctrl = m_linec->read() & 0x01 ? 1 : 0;
m_key_pressed = 0xff;
for(int i = 0; i < 7; i++)
{
uint8_t code = m_lines[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());
m_floppy->get_device()->mon_w(false);
}
FLOPPY_FORMATS_MEMBER( nanos_state::floppy_formats )
FLOPPY_NANOS_FORMAT
FLOPPY_FORMATS_END
static void nanos_floppies(device_slot_interface &device)
{
device.option_add("525hd", FLOPPY_525_HD);
}
/* 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( gfx_nanos )
GFXDECODE_ENTRY( "chargen", 0x0000, nanos_charlayout, 0, 1 )
GFXDECODE_END
MACHINE_CONFIG_START(nanos_state::nanos)
/* basic machine hardware */
Z80(config, m_maincpu, XTAL(4'000'000));
m_maincpu->set_addrmap(AS_PROGRAM, &nanos_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &nanos_state::io_map);
m_maincpu->set_daisy_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_SCREEN_PALETTE("palette")
MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_nanos)
PALETTE(config, "palette", palette_device::MONOCHROME);
/* devices */
Z80CTC(config, m_ctc_0, XTAL(4'000'000));
m_ctc_0->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
m_ctc_0->zc_callback<0>().set(FUNC(nanos_state::ctc_z0_w));
m_ctc_0->zc_callback<1>().set(FUNC(nanos_state::ctc_z1_w));
m_ctc_0->zc_callback<2>().set(FUNC(nanos_state::ctc_z2_w));
Z80CTC(config, m_ctc_1, XTAL(4'000'000));
m_ctc_1->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
m_ctc_1->zc_callback<0>().set(FUNC(nanos_state::ctc_z0_w));
m_ctc_1->zc_callback<1>().set(FUNC(nanos_state::ctc_z1_w));
m_ctc_1->zc_callback<2>().set(FUNC(nanos_state::ctc_z2_w));
Z80PIO(config, m_pio_0, XTAL(4'000'000));
m_pio_0->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
Z80PIO(config, m_pio_1, XTAL(4'000'000));
m_pio_1->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
Z80SIO(config, m_sio_0, XTAL(4'000'000));
m_sio_0->out_int_callback().set(FUNC(nanos_state::z80daisy_interrupt));
Z80SIO(config, m_sio_1, XTAL(4'000'000));
m_sio_1->out_int_callback().set(FUNC(nanos_state::z80daisy_interrupt));
Z80PIO(config, m_pio, XTAL(4'000'000));
m_pio->in_pa_callback().set(FUNC(nanos_state::port_a_r));
m_pio->in_pb_callback().set(FUNC(nanos_state::port_b_r));
m_pio->out_pb_callback().set(FUNC(nanos_state::port_b_w));
/* UPD765 */
UPD765A(config, m_fdc, 8'000'000, false, true);
MCFG_FLOPPY_DRIVE_ADD(m_floppy, nanos_floppies, "525hd", nanos_state::floppy_formats)
/* internal ram */
RAM(config, RAM_TAG).set_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 CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1985, nanos, 0, 0, nanos, nanos, nanos_state, empty_init, "Ingenieurhochschule fur Seefahrt Warnemunde/Wustrow", "NANOS", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)