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mame/src/mess/drivers/bw12.c
Fabio Priuli e098aab416 Modernized the PIT8253 device. [Fabio Priuli]
2013-06-03 11:39:54 +00:00

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/***************************************************************************
Bondwell 12/14
12/05/2009 Skeleton driver.
- Z80A CPU 4MHz
- 64KB RAM (BW 12), 128KB RAM (BW 14)
- 4KB ROM System
- UPD765A Floppy controller
- 2 x 5.25" Floppy drives 48 tpi SSDD (BW 12), DSDD (BW 14)
- MC6845 Video controller
- 2KB RAM Video buffer
- 4KB ROM Character set
- Z80SIO Serial interface
- MC6821 Parallel interface
- I8253 Counter-timer
- MC1408 8-bit DAC sound
- KB3600 PRO (AY-5-3600 PRO) Keyboard controller
http://www.eld.leidenuniv.nl/~moene/Home/sitemap/
http://www.baltissen.org/newhtm/schemas.htm
****************************************************************************/
#include "includes/bw12.h"
/*
TODO:
- floppy motor off timer
*/
void bw12_state::bankswitch()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
switch (m_bank)
{
case 0: /* ROM */
program.install_read_bank(0x0000, 0x7fff, "bank1");
program.unmap_write(0x0000, 0x7fff);
break;
case 1: /* BK0 */
program.install_readwrite_bank(0x0000, 0x7fff, "bank1");
break;
case 2: /* BK1 */
case 3: /* BK2 */
if (m_ram->size() > 64*1024)
{
program.install_readwrite_bank(0x0000, 0x7fff, "bank1");
}
else
{
program.unmap_readwrite(0x0000, 0x7fff);
}
break;
}
membank("bank1")->set_entry(m_bank);
}
void bw12_state::floppy_motor_off()
{
m_floppy0->mon_w(1);
m_floppy1->mon_w(1);
m_motor_on = 0;
}
TIMER_DEVICE_CALLBACK_MEMBER(bw12_state::floppy_motor_off_tick)
{
floppy_motor_off();
}
void bw12_state::set_floppy_motor_off_timer()
{
if (m_motor0 || m_motor1)
{
m_motor_on = 1;
m_floppy_timer->enable(false);
}
else
{
/* trigger floppy motor off NE556 timer */
/*
R18 = RES_K(100)
C11 = CAP_U(4.7)
*/
//m_floppy_timer->adjust(attotime::zero);
floppy_motor_off();
}
}
void bw12_state::ls259_w(int address, int data)
{
switch (address)
{
case 0: /* LS138 A0 */
m_bank = (m_bank & 0x02) | data;
bankswitch();
break;
case 1: /* LS138 A1 */
m_bank = (data << 1) | (m_bank & 0x01);
bankswitch();
break;
case 2: /* not connected */
break;
case 3: /* _INIT */
break;
case 4: /* CAP LOCK */
output_set_led_value(0, data);
break;
case 5: /* MOTOR 0 */
m_motor0 = data;
break;
case 6: /* MOTOR 1 */
m_motor1 = data;
break;
case 7: /* FDC TC */
m_fdc->tc_w(data);
break;
}
m_motor_on = m_motor0 || m_motor1;
m_floppy0->mon_w(!m_motor_on);
m_floppy1->mon_w(!m_motor_on);
}
WRITE8_MEMBER( bw12_state::ls259_w )
{
int d = BIT(offset, 0);
int a = (offset >> 1) & 0x07;
ls259_w(a, d);
}
READ8_MEMBER( bw12_state::ls259_r )
{
ls259_w(space, offset, 0);
return 0;
}
/* Memory Maps */
static ADDRESS_MAP_START( bw12_mem, AS_PROGRAM, 8, bw12_state )
AM_RANGE(0x0000, 0x7fff) AM_RAMBANK("bank1")
AM_RANGE(0x8000, 0xf7ff) AM_RAM
AM_RANGE(0xf800, 0xffff) AM_RAM AM_SHARE("video_ram")
ADDRESS_MAP_END
static ADDRESS_MAP_START( bw12_io, AS_IO, 8, bw12_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x0f) AM_READWRITE(ls259_r, ls259_w)
AM_RANGE(0x10, 0x10) AM_MIRROR(0x0e) AM_DEVWRITE(MC6845_TAG, mc6845_device, address_w)
AM_RANGE(0x11, 0x11) AM_MIRROR(0x0e) AM_DEVREADWRITE(MC6845_TAG, mc6845_device, register_r, register_w)
AM_RANGE(0x20, 0x21) AM_MIRROR(0x0e) AM_DEVICE(UPD765_TAG, upd765a_device, map)
AM_RANGE(0x30, 0x33) AM_MIRROR(0x0c) AM_DEVREADWRITE(PIA6821_TAG, pia6821_device, read, write)
AM_RANGE(0x40, 0x43) AM_MIRROR(0x0c) AM_DEVREADWRITE(Z80SIO_TAG, z80sio0_device, ba_cd_r, ba_cd_w)
AM_RANGE(0x50, 0x50) AM_MIRROR(0x0f) AM_DEVWRITE(MC1408_TAG, dac_device, write_unsigned8)
AM_RANGE(0x60, 0x63) AM_MIRROR(0x0c) AM_DEVREADWRITE(PIT8253_TAG, pit8253_device, read, write)
ADDRESS_MAP_END
/* Input Ports */
static INPUT_PORTS_START( bw12 )
/*
KB3600 PRO2 Keyboard matrix
| Y0 | Y1 | Y2 | Y3 | Y4 | Y5 | Y6 | Y7 | Y8 | Y9 |
| | | | | | | | | | |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X0 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X1 | U | I | O | P | Q | W | E | R | T | Y |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X2 | F15 | F16 | RET | N. | SP | LOCK| F11 | F12 | F13 | F14 |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X3 | F7 | F8 | F9 | F10 | F1 | F2 | F3 | F4 | F5 | F6 |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X4 | LEFT|RIGHT| N3 | BS | @ | | - | ] | UP | DOWN|
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X5 | N9 | CL | N2 | LF | DEL | HT |ARROW| [ | N7 | N8 |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X6 | M | , | . | / | Z | X | C | V | B | N |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X7 | J | K | L | ; | A | S | D | F | G | H |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
X8 | N6 | - | N1 | N0 | ESC | | : | NRET| N4 | N5 |
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----|
*/
PORT_START("X0")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('|')
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_START("X1")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_START("X2")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F15")
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F16")
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD)
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F11") PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11))
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F12") PORT_CODE(KEYCODE_F12) PORT_CHAR(UCHAR_MAMEKEY(F12))
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F13")
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F14")
PORT_START("X3")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7))
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8))
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9))
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F10") PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10))
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2))
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3))
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4))
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6))
PORT_START("X4")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD)
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('@') PORT_CHAR('\\')
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') PORT_CHAR('=')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
PORT_START("X5")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD)
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CL")
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD)
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LF")
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("HT")
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD)
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD)
PORT_START("X6")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_START("X7")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_START("X8")
PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD)
PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD)
PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD)
PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC)
PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad RET") PORT_CODE(KEYCODE_ENTER_PAD)
PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD)
PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD)
PORT_START("MODIFIERS")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
INPUT_PORTS_END
/* Video */
static MC6845_UPDATE_ROW( bw12_update_row )
{
bw12_state *state = device->machine().driver_data<bw12_state>();
int column, bit;
for (column = 0; column < x_count; column++)
{
UINT8 code = state->m_video_ram[((ma + column) & BW12_VIDEORAM_MASK)];
UINT16 addr = code << 4 | (ra & 0x0f);
UINT8 data = state->m_char_rom->base()[addr & BW12_CHARROM_MASK];
if (column == cursor_x)
{
data = 0xff;
}
for (bit = 0; bit < 8; bit++)
{
int x = (column * 8) + bit;
int color = BIT(data, 7);
bitmap.pix32(y, x) = RGB_MONOCHROME_AMBER[color];
data <<= 1;
}
}
}
static MC6845_INTERFACE( bw12_mc6845_interface )
{
SCREEN_TAG,
false,
8,
NULL,
bw12_update_row,
NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
NULL
};
/* PIA6821 Interface */
READ8_MEMBER( bw12_state::pia_pa_r )
{
/*
bit description
PA0 Input from Centronics BUSY status
PA1 Input from Centronics ERROR status
PA2 Input from Centronics PAPER OUT status
PA3 Input from FDC MOTOR
PA4 Input from PIT OUT2
PA5 Input from keyboard strobe
PA6 Input from keyboard serial data
PA7 Input from FDC interrupt
*/
UINT8 data = 0;
data |= m_centronics->busy_r();
data |= (m_centronics->fault_r() << 1);
data |= (m_centronics->pe_r() << 2);
data |= (m_motor_on << 3);
data |= (m_pit_out2 << 4);
data |= (m_key_stb << 5);
data |= (m_key_sin << 6);
data |= (m_fdc->get_irq() ? 1 : 0) << 7;
return data;
}
READ_LINE_MEMBER( bw12_state::pia_cb1_r )
{
return m_key_stb;
}
WRITE_LINE_MEMBER( bw12_state::pia_cb2_w )
{
if (state)
{
/* keyboard shift clock */
m_key_shift++;
if (m_key_shift < 10)
{
m_key_sin = m_key_data[m_key_shift];
}
}
}
static const pia6821_interface pia_intf =
{
DEVCB_DRIVER_MEMBER(bw12_state, pia_pa_r), /* port A input */
DEVCB_NULL, /* port B input */
DEVCB_DEVICE_LINE_MEMBER(CENTRONICS_TAG, centronics_device, ack_r), /* CA1 input */
DEVCB_DRIVER_LINE_MEMBER(bw12_state, pia_cb1_r), /* CB1 input */
DEVCB_NULL, /* CA2 input */
DEVCB_NULL, /* CB2 input */
DEVCB_NULL, /* port A output */
DEVCB_DEVICE_MEMBER(CENTRONICS_TAG, centronics_device, write), /* port B output */
DEVCB_DEVICE_LINE_MEMBER(CENTRONICS_TAG, centronics_device, strobe_w), /* CA2 output */
DEVCB_DRIVER_LINE_MEMBER(bw12_state, pia_cb2_w), /* CB2 output */
DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0), /* IRQA output */
DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0) /* IRQB output */
};
/* Centronics Interface */
static const centronics_interface bw12_centronics_intf =
{
DEVCB_DEVICE_LINE_MEMBER(PIA6821_TAG, pia6821_device, ca1_w), /* ACK output */
DEVCB_NULL, /* BUSY output */
DEVCB_NULL /* NOT BUSY output */
};
/* Z80-SIO/0 Interface */
static Z80SIO_INTERFACE( sio_intf )
{
0, 0, 0, 0,
DEVCB_DEVICE_LINE_MEMBER(RS232_A_TAG, serial_port_device, rx),
DEVCB_DEVICE_LINE_MEMBER(RS232_A_TAG, serial_port_device, tx),
DEVCB_DEVICE_LINE_MEMBER(RS232_A_TAG, rs232_port_device, dtr_w),
DEVCB_DEVICE_LINE_MEMBER(RS232_A_TAG, rs232_port_device, rts_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(RS232_B_TAG, serial_port_device, rx),
DEVCB_DEVICE_LINE_MEMBER(RS232_B_TAG, serial_port_device, tx),
DEVCB_DEVICE_LINE_MEMBER(RS232_B_TAG, rs232_port_device, dtr_w),
DEVCB_DEVICE_LINE_MEMBER(RS232_B_TAG, rs232_port_device, rts_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0)
};
/* PIT8253 Interface */
WRITE_LINE_MEMBER( bw12_state::pit_out0_w )
{
m_sio->txca_w(state);
m_sio->rxca_w(state);
}
WRITE_LINE_MEMBER( bw12_state::pit_out2_w )
{
m_pit_out2 = state;
}
static const struct pit8253_interface pit_intf =
{
{
{
XTAL_1_8432MHz,
DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(bw12_state, pit_out0_w)
},
{
XTAL_1_8432MHz,
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(Z80SIO_TAG, z80dart_device, rxtxcb_w)
},
{
XTAL_1_8432MHz,
DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(bw12_state, pit_out2_w)
}
}
};
/* AY-5-3600-PRO-002 Interface */
READ_LINE_MEMBER( bw12_state::ay3600_shift_r )
{
return BIT(m_modifiers->read(), 0);
}
READ_LINE_MEMBER( bw12_state::ay3600_control_r )
{
return BIT(m_modifiers->read(), 1);
}
WRITE_LINE_MEMBER( bw12_state::ay3600_data_ready_w )
{
m_key_stb = state;
m_pia->cb1_w(state);
if (state)
{
UINT16 data = m_kbc->b_r();
m_key_data[0] = BIT(data, 6);
m_key_data[1] = BIT(data, 3);
m_key_data[2] = BIT(data, 1);
m_key_data[3] = BIT(data, 0);
m_key_data[4] = BIT(data, 2);
m_key_data[5] = BIT(data, 4);
m_key_data[6] = BIT(data, 5);
m_key_data[7] = BIT(data, 7);
m_key_data[8] = BIT(data, 8);
m_key_shift = 0;
m_key_sin = m_key_data[m_key_shift];
}
}
static AY3600_INTERFACE( bw12_ay3600_intf )
{
DEVCB_INPUT_PORT("X0"),
DEVCB_INPUT_PORT("X1"),
DEVCB_INPUT_PORT("X2"),
DEVCB_INPUT_PORT("X3"),
DEVCB_INPUT_PORT("X4"),
DEVCB_INPUT_PORT("X5"),
DEVCB_INPUT_PORT("X6"),
DEVCB_INPUT_PORT("X7"),
DEVCB_INPUT_PORT("X8"),
DEVCB_DRIVER_LINE_MEMBER(bw12_state, ay3600_shift_r),
DEVCB_DRIVER_LINE_MEMBER(bw12_state, ay3600_control_r),
DEVCB_DRIVER_LINE_MEMBER(bw12_state, ay3600_data_ready_w),
DEVCB_NULL
};
/* Machine Initialization */
void bw12_state::machine_start()
{
/* setup memory banking */
membank("bank1")->configure_entry(0, m_rom->base());
membank("bank1")->configure_entry(1, m_ram->pointer());
membank("bank1")->configure_entries(2, 2, m_ram->pointer() + 0x10000, 0x8000);
/* register for state saving */
save_item(NAME(m_bank));
save_item(NAME(m_pit_out2));
save_item(NAME(m_key_data));
save_item(NAME(m_key_sin));
save_item(NAME(m_key_stb));
save_item(NAME(m_key_shift));
save_item(NAME(m_motor_on));
save_item(NAME(m_motor0));
save_item(NAME(m_motor1));
}
void bw12_state::machine_reset()
{
for (int i = 0; i < 8; i++)
{
ls259_w(i, 0);
}
}
static SLOT_INTERFACE_START( bw12_floppies )
SLOT_INTERFACE( "525dd", FLOPPY_525_SSDD )
SLOT_INTERFACE_END
FLOPPY_FORMATS_MEMBER( bw12_state::bw12_floppy_formats )
FLOPPY_BW12_FORMAT
FLOPPY_FORMATS_END
static SLOT_INTERFACE_START( bw14_floppies )
SLOT_INTERFACE( "525dd", FLOPPY_525_DD )
SLOT_INTERFACE_END
FLOPPY_FORMATS_MEMBER( bw12_state::bw14_floppy_formats )
FLOPPY_BW12_FORMAT
FLOPPY_FORMATS_END
//-------------------------------------------------
// rs232_port_interface rs232a_intf
//-------------------------------------------------
static const rs232_port_interface rs232a_intf =
{
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(Z80SIO_TAG, z80dart_device, dcda_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(Z80SIO_TAG, z80dart_device, ctsa_w)
};
//-------------------------------------------------
// rs232_port_interface rs232b_intf
//-------------------------------------------------
static const rs232_port_interface rs232b_intf =
{
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(Z80SIO_TAG, z80dart_device, dcdb_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER(Z80SIO_TAG, z80dart_device, ctsb_w)
};
/* F4 Character Displayer */
static const gfx_layout bw12_charlayout =
{
8, 9, /* 8 x 9 characters */
256, /* 128 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( bw12 )
GFXDECODE_ENTRY( "chargen", 0x0000, bw12_charlayout, 0, 1 )
GFXDECODE_END
/* Machine Driver */
static MACHINE_CONFIG_START( common, bw12_state )
/* basic machine hardware */
MCFG_CPU_ADD(Z80_TAG, Z80, XTAL_16MHz/4)
MCFG_CPU_PROGRAM_MAP(bw12_mem)
MCFG_CPU_IO_MAP(bw12_io)
/* video hardware */
MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_UPDATE_DEVICE(MC6845_TAG, mc6845_device, screen_update)
MCFG_SCREEN_SIZE(640, 200)
MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 200-1)
MCFG_GFXDECODE(bw12)
MCFG_MC6845_ADD(MC6845_TAG, MC6845, XTAL_16MHz/8, bw12_mc6845_interface)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD(MC1408_TAG, DAC, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
/* devices */
MCFG_TIMER_DRIVER_ADD(FLOPPY_TIMER_TAG, bw12_state, floppy_motor_off_tick)
MCFG_UPD765A_ADD(UPD765_TAG, false, true)
MCFG_PIA6821_ADD(PIA6821_TAG, pia_intf)
MCFG_Z80SIO0_ADD(Z80SIO_TAG, XTAL_16MHz/4, sio_intf)
MCFG_PIT8253_ADD(PIT8253_TAG, pit_intf)
MCFG_AY3600_ADD(AY3600PRO002_TAG, 0, bw12_ay3600_intf)
MCFG_RS232_PORT_ADD(RS232_A_TAG, rs232a_intf, default_rs232_devices, NULL)
MCFG_RS232_PORT_ADD(RS232_B_TAG, rs232b_intf, default_rs232_devices, NULL)
/* printer */
MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, bw12_centronics_intf)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( bw12, common )
/* floppy drives */
MCFG_FLOPPY_DRIVE_ADD(UPD765_TAG ":1", bw12_floppies, "525dd", bw12_state::bw12_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(UPD765_TAG ":2", bw12_floppies, "525dd", bw12_state::bw12_floppy_formats)
// software lists
MCFG_SOFTWARE_LIST_ADD("flop_list", "bw12")
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( bw14, common )
/* floppy drives */
MCFG_FLOPPY_DRIVE_ADD(UPD765_TAG ":1", bw14_floppies, "525dd", bw12_state::bw14_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(UPD765_TAG ":2", bw14_floppies, "525dd", bw12_state::bw14_floppy_formats)
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("128K")
MACHINE_CONFIG_END
/* ROMs */
ROM_START( bw12 )
ROM_REGION( 0x10000, Z80_TAG, 0 )
ROM_LOAD( "bw14boot.ic41", 0x0000, 0x1000, CRC(782fe341) SHA1(eefe5ad6b1ef77a1caf0af743b74de5fa1c4c19d) )
ROM_REGION(0x1000, "chargen", 0)
ROM_LOAD( "bw14char.ic1", 0x0000, 0x1000, CRC(f9dd68b5) SHA1(50132b759a6d84c22c387c39c0f57535cd380411) )
ROM_END
#define rom_bw14 rom_bw12
/* System Drivers */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1984, bw12, 0, 0, bw12, bw12, driver_device, 0, "Bondwell Holding", "Bondwell 12", GAME_SUPPORTS_SAVE )
COMP( 1984, bw14, bw12, 0, bw14, bw12, driver_device, 0, "Bondwell Holding", "Bondwell 14", GAME_SUPPORTS_SAVE )
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