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mame/src/mess/drivers/v1050.c

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/*
Visual 1050
PCB Layout
----------
REV B-1
|---------------------------------------------------------------------------------------------------|
| |----------| |
| 9216 | ROM0 | LS74 |
| |----------| |
-- LS00 7406 LS255 LS393 4164 4164 |
|| |-----------| |----------| |
|| | WD1793 | LS14 7407 - LS393 LS74 | 8251A | 4164 4164 |
|| |-----------| | |----------| |
|C | 4164 4164 |
|N 7406 LS00 LS74 LS14 |C LS20 LS08 LS75 |
|1 |N 4164 4164 |
|| |5 |
|| 7406 LS195 LS244 | LS04 LS32 LS08 4164 4164 |
|| - |
|| |------------| |--------| 4164 4164 |
-- BAT | 8255A | | 8214 | LS139 LS32 LS138 LS17 |
-- |------------| |--------| - 4164 4164 |
|| |C |
|| |--------| LS00 LS00 |N LS00 LS32 LS138 4164 4164 |
|C | 8251A | |6 |
|N |--------| |------------| - |------------| |
|2 | 8255A | | Z80A | |
|| 1488 1489 RTC |------------| LS00 LS32 |------------| LS257 LS257 |
|| |
-- |------------| |------------| |
| LS04 | 8255A | | 8255A | |
| |------------| |------------| |
| |
| 7404 LS257 LS257 |
| 16MHz |
| LS04 LS74 LS257 9016 9016 |
| |
-- LS74 LS04 LS74 LS163 9016 9016 |
|| |
|| 9016 9016 |
|| LS02 LS163 LS74 7404 7404 |
|| 9016 9016 |
|| |
|C LS244 LS10 LS257 LS362 |----------| 9016 9016 |
|N | ROM1 | |
|3 LS245 7404 LS273 LS32 |----------| 9016 9016 |
|| |
|| 7407 LS174 LS32 9016 9016 |
|| 15.36MHz |
|| |------------| 9016 9016 |
-- LS09 LS04 LS12 | 6502 | |
| |------------| 9016 9016 |
-- |
|C LS175 LS86 LS164 LS164 9016 9016 |
|N |------------| |
|4 | 6845 | LS253 LS253 |
-- 7426 LS02 LS74 LS00 LS164 |------------| |
| LS253 LS253 |
| REV B-1 W/O 1059 S/N 492 |
|---------------------------------------------------------------------------------------------------|
Notes:
All IC's shown.
ROM0 - "IC 244-032 V1.0"
ROM1 - "IC 244-033 V1.0"
Z80A - Zilog Z8400APS Z80A CPU
6502 - Synertek SY6502A CPU
4164 - NEC D4164-2 64Kx1 Dynamic RAM
9016 - AMD AM9016EPC 16Kx1 Dynamic RAM
8214 - NEC uPB8214C Priority Interrupt Control Unit
8255A - NEC D8255AC-5 Programmable Peripheral Interface
8251A - NEC D8251AC Programmable Communication Interface
WD1793 - Mitsubishi MB8877 Floppy Disc Controller
9216 - SMC FDC9216 Floppy Disk Data Separator
1488 - Motorola MC1488 Quad Line EIA-232D Driver
1489 - Motorola MC1489 Quad Line Receivers
6845 - Hitachi HD46505SP CRT Controller
RTC - OKI MSM58321RS Real Time Clock
BAT - 3.4V battery
CN1 - parallel connector
CN2 - serial connector
CN3 - winchester connector
CN4 - monitor connector
CN5 - floppy data connector
CN6 - floppy power connector
*/
/*
TODO:
- floppy broken
- write to banked RAM at 0x0000-0x1fff when ROM is active
- real keyboard w/i8049
- keyboard beeper (NE555 wired in strange mix of astable/monostable modes)
- Winchester (Tandon TM501/CMI CM-5412 10MB drive on Xebec S1410 controller)
chdman createhd -chs 306,2,32 -ss 256 -o tm501.chd
chdman createhd -chs 306,4,32 -ss 256 -o cm5412.chd
*/
#include "includes/v1050.h"
void v1050_state::set_interrupt(UINT8 mask, int state)
{
if (state)
{
m_int_state |= mask;
}
else
{
m_int_state &= ~mask;
}
m_pic->r_w(~(m_int_state & m_int_mask));
}
void v1050_state::bankswitch()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
int bank = (m_bank >> 1) & 0x03;
if (BIT(m_bank, 0))
{
program.install_readwrite_bank(0x0000, 0x1fff, "bank1");
membank("bank1")->set_entry(bank);
}
else
{
program.install_read_bank(0x0000, 0x1fff, "bank1");
program.unmap_write(0x0000, 0x1fff);
membank("bank1")->set_entry(3);
}
membank("bank2")->set_entry(bank);
if (bank == 2)
{
program.unmap_readwrite(0x4000, 0xbfff);
}
else
{
program.install_readwrite_bank(0x4000, 0x7fff, "bank3");
program.install_readwrite_bank(0x8000, 0xbfff, "bank4");
membank("bank3")->set_entry(bank);
membank("bank4")->set_entry(bank);
}
membank("bank5")->set_entry(bank);
}
// Keyboard HACK
static const UINT8 V1050_KEYCODES[4][12][8] =
{
{ // unshifted
{ 0xc0, 0xd4, 0xd8, 0xdc, 0xe0, 0xe4, 0xe8, 0xec },
{ 0xf0, 0xfc, 0x90, 0xf4, 0xf8, 0x94, 0xc4, 0xc8 },
{ 0xcc, 0xd0, 0x1b, 0x31, 0x32, 0x33, 0x34, 0x35 },
{ 0x36, 0x37, 0x38, 0x39, 0x30, 0x2d, 0x3d, 0x60 },
{ 0x08, 0x88, 0x8c, 0x71, 0x77, 0x65, 0x72, 0x74 },
{ 0x79, 0x75, 0x69, 0x6f, 0x70, 0x5b, 0x5d, 0x0d },
{ 0x7f, 0x00, 0x80, 0x61, 0x73, 0x64, 0x66, 0x67 },
{ 0x68, 0x6a, 0x6b, 0x6c, 0x3b, 0x27, 0x5c, 0x84 },
{ 0x00, 0x7a, 0x78, 0x63, 0x76, 0x62, 0x6e, 0x6d },
{ 0x2c, 0x2e, 0x2f, 0x00, 0x0a, 0x20, 0x81, 0x82 },
{ 0xb7, 0xb8, 0xb9, 0xad, 0xb4, 0xb5, 0xb6, 0xac },
{ 0xb1, 0xb2, 0xb3, 0x83, 0xb0, 0xae, 0x00, 0x00 },
},
{ // shifted
{ 0xc1, 0xd5, 0xd9, 0xdd, 0xe1, 0xe5, 0xe9, 0xed },
{ 0xf1, 0xfd, 0x91, 0xf5, 0xf9, 0x95, 0xc5, 0xc9 },
{ 0xcd, 0xd1, 0x1b, 0x21, 0x40, 0x23, 0x24, 0x25 },
{ 0x5e, 0x26, 0x2a, 0x28, 0x29, 0x5f, 0x2b, 0x7e },
{ 0x08, 0x89, 0x8d, 0x51, 0x57, 0x45, 0x52, 0x54 },
{ 0x59, 0x55, 0x49, 0x4f, 0x50, 0x7b, 0x7d, 0x0d },
{ 0x7f, 0x00, 0x80, 0x41, 0x53, 0x44, 0x46, 0x47 },
{ 0x48, 0x4a, 0x4b, 0x4c, 0x3a, 0x22, 0x7c, 0x85 },
{ 0x00, 0x5a, 0x58, 0x43, 0x56, 0x42, 0x4e, 0x4d },
{ 0x3c, 0x3e, 0x3f, 0x0a, 0x20, 0x81, 0x82, 0xb7 },
{ 0xb8, 0xb9, 0xad, 0xb4, 0xb5, 0xb6, 0xac, 0xb1 },
{ 0xb2, 0xb3, 0x83, 0xb0, 0xa0, 0x00, 0x00, 0x00 },
},
{ // control
{ 0xc2, 0xd6, 0xda, 0xde, 0xe2, 0xe6, 0xea, 0xee },
{ 0xf2, 0xfe, 0x92, 0xf6, 0xfa, 0x96, 0xc6, 0xca },
{ 0xce, 0xd2, 0x1b, 0x31, 0x32, 0x33, 0x34, 0x35 },
{ 0x36, 0x37, 0x38, 0x39, 0x30, 0x2d, 0x3d, 0x00 },
{ 0x08, 0x8a, 0x8e, 0x11, 0x17, 0x05, 0x12, 0x14 },
{ 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d, 0x0d },
{ 0x7f, 0x00, 0x80, 0x01, 0x13, 0x04, 0x06, 0x07 },
{ 0x08, 0x0a, 0x0b, 0x0c, 0x3b, 0x27, 0x1c, 0x86 },
{ 0x00, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d },
{ 0x2c, 0x2e, 0x2f, 0x0a, 0x20, 0x81, 0x82, 0xb7 },
{ 0xb8, 0xb9, 0xad, 0xb4, 0xb5, 0xb6, 0xac, 0xb1 },
{ 0xb2, 0xb3, 0x83, 0xb0, 0xae, 0x00, 0x00, 0x00 },
},
{ // shift & control
{ 0xc3, 0xd7, 0xdb, 0xdf, 0xe3, 0xe7, 0xeb, 0xef },
{ 0xf3, 0xff, 0x93, 0xf7, 0xfb, 0x97, 0xc7, 0xcb },
{ 0xcf, 0xd3, 0x1b, 0x21, 0x00, 0x23, 0x24, 0x25 },
{ 0x1e, 0x26, 0x2a, 0x28, 0x29, 0x1f, 0x2b, 0x1e },
{ 0x08, 0x8b, 0x8f, 0x11, 0x17, 0x05, 0x12, 0x14 },
{ 0x19, 0x15, 0x09, 0x0f, 0x10, 0x1b, 0x1d, 0x0d },
{ 0x7f, 0x00, 0x80, 0x01, 0x13, 0x04, 0x06, 0x07 },
{ 0x08, 0x0a, 0x0b, 0x0c, 0x3a, 0x22, 0x1c, 0x87 },
{ 0x00, 0x1a, 0x18, 0x03, 0x16, 0x02, 0x0e, 0x0d },
{ 0x3c, 0x3e, 0x3f, 0x0a, 0x20, 0x81, 0x82, 0xb7 },
{ 0xb8, 0xb9, 0xad, 0xb4, 0xb5, 0xb6, 0xac, 0xb1 },
{ 0xb2, 0xb3, 0x83, 0xb0, 0xae, 0x00, 0x00, 0x00 },
}
};
void v1050_state::scan_keyboard()
{
static const char *const keynames[] = { "ROW0", "ROW1", "ROW2", "ROW3", "ROW4", "ROW5", "ROW6", "ROW7", "ROW8", "ROW9", "ROW10", "ROW11" };
int table = 0, row, col;
int keydata = 0xff;
UINT8 line_mod = ioport("ROW12")->read();
if((line_mod & 0x07) && (line_mod & 0x18))
{
table = 3; // shift & control
}
else if (line_mod & 0x07)
{
table = 1; // shifted
}
else if (line_mod & 0x18)
{
table = 2; // ctrl
}
// scan keyboard
for (row = 0; row < 12; row++)
{
UINT8 data = ioport(keynames[row])->read();
for (col = 0; col < 8; col++)
{
if (!BIT(data, col))
{
// latch key data
keydata = V1050_KEYCODES[table][row][col];
if (m_keydata != keydata)
{
m_keydata = keydata;
m_keyavail = 1;
set_interrupt(INT_KEYBOARD, 1);
return;
}
}
}
}
m_keydata = keydata;
}
TIMER_DEVICE_CALLBACK_MEMBER(v1050_state::v1050_keyboard_tick)
{
scan_keyboard();
}
READ8_MEMBER( v1050_state::kb_data_r )
{
m_keyavail = 0;
set_interrupt(INT_KEYBOARD, 0);
return m_keydata;
}
READ8_MEMBER( v1050_state::kb_status_r )
{
UINT8 val = m_uart_kb->status_r(space, 0);
return val | (m_keyavail ? 0x02 : 0x00);
}
// Z80 Read/Write Handlers
WRITE8_MEMBER( v1050_state::v1050_i8214_w )
{
m_pic->b_w((data >> 1) & 0x07);
m_pic->sgs_w(BIT(data, 4));
}
READ8_MEMBER( v1050_state::vint_clr_r )
{
set_interrupt(INT_VSYNC, 0);
return 0xff;
}
WRITE8_MEMBER( v1050_state::vint_clr_w )
{
set_interrupt(INT_VSYNC, 0);
}
READ8_MEMBER( v1050_state::dint_clr_r )
{
set_interrupt(INT_DISPLAY, 0);
return 0xff;
}
WRITE8_MEMBER( v1050_state::dint_clr_w )
{
set_interrupt(INT_DISPLAY, 0);
}
WRITE8_MEMBER( v1050_state::bank_w )
{
m_bank = data;
bankswitch();
}
// SY6502A Read/Write Handlers
WRITE8_MEMBER( v1050_state::dint_w )
{
set_interrupt(INT_DISPLAY, 1);
}
WRITE8_MEMBER( v1050_state::dvint_clr_w )
{
m_subcpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE);
}
WRITE8_MEMBER( v1050_state::sasi_data_w )
{
data_out = data;
if( !m_sasibus->scsi_io_r() )
{
m_sasibus->scsi_data_w( data );
}
}
WRITE_LINE_MEMBER( v1050_state::sasi_io_w )
{
if( !state )
{
m_sasibus->scsi_data_w( data_out );
}
else
{
m_sasibus->scsi_data_w( 0 );
}
}
READ8_MEMBER( v1050_state::sasi_status_r )
{
/*
bit description
0 REQ-
1 BUSY
2 MESSAGE
3 C/D-
4 I-/O
5
6
7
*/
UINT8 data = 0;
data |= !m_sasibus->scsi_req_r();
data |= m_sasibus->scsi_bsy_r() << 1;
data |= m_sasibus->scsi_msg_r() << 2;
data |= m_sasibus->scsi_cd_r() << 3;
data |= !m_sasibus->scsi_io_r() << 4;
return data;
}
TIMER_DEVICE_CALLBACK_MEMBER(v1050_state::sasi_ack_tick)
{
m_sasibus->scsi_ack_w(0);
}
TIMER_DEVICE_CALLBACK_MEMBER(v1050_state::sasi_rst_tick)
{
m_sasibus->scsi_rst_w(0);
}
WRITE8_MEMBER( v1050_state::sasi_ctrl_w )
{
/*
bit description
0 SEL
1 ACK
2
3
4
5
6
7 RST
*/
m_sasibus->scsi_sel_w(BIT(data, 0));
if (BIT(data, 1))
{
// send acknowledge pulse
m_sasibus->scsi_ack_w(1);
m_timer_ack->adjust(attotime::from_nsec(100));
}
if (BIT(data, 7))
{
// send reset pulse
m_sasibus->scsi_rst_w(1);
m_timer_rst->adjust(attotime::from_nsec(100));
}
}
// Memory Maps
static ADDRESS_MAP_START( v1050_mem, AS_PROGRAM, 8, v1050_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x1fff) AM_RAMBANK("bank1")
AM_RANGE(0x2000, 0x3fff) AM_RAMBANK("bank2")
AM_RANGE(0x4000, 0x7fff) AM_RAMBANK("bank3")
AM_RANGE(0x8000, 0xbfff) AM_RAMBANK("bank4")
AM_RANGE(0xc000, 0xffff) AM_RAMBANK("bank5")
ADDRESS_MAP_END
static ADDRESS_MAP_START( v1050_io, AS_IO, 8, v1050_state )
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x84, 0x87) AM_DEVREADWRITE(I8255A_DISP_TAG, i8255_device, read, write)
// AM_RANGE(0x88, 0x88) AM_DEVREADWRITE(I8251A_KB_TAG, i8251_device, data_r, data_w)
// AM_RANGE(0x89, 0x89) AM_DEVREADWRITE(I8251A_KB_TAG, i8251_device, status_r, control_w)
AM_RANGE(0x88, 0x88) AM_READ(kb_data_r) AM_DEVWRITE(I8251A_KB_TAG, i8251_device, data_w)
AM_RANGE(0x89, 0x89) AM_READ(kb_status_r) AM_DEVWRITE(I8251A_KB_TAG, i8251_device, control_w)
AM_RANGE(0x8c, 0x8c) AM_DEVREADWRITE(I8251A_SIO_TAG, i8251_device, data_r, data_w)
AM_RANGE(0x8d, 0x8d) AM_DEVREADWRITE(I8251A_SIO_TAG, i8251_device, status_r, control_w)
AM_RANGE(0x90, 0x93) AM_DEVREADWRITE(I8255A_MISC_TAG, i8255_device, read, write)
AM_RANGE(0x94, 0x97) AM_DEVREADWRITE(MB8877_TAG, mb8877_t, read, write)
AM_RANGE(0x9c, 0x9f) AM_DEVREADWRITE(I8255A_RTC_TAG, i8255_device, read, write)
AM_RANGE(0xa0, 0xa0) AM_READWRITE(vint_clr_r, vint_clr_w)
AM_RANGE(0xb0, 0xb0) AM_READWRITE(dint_clr_r, dint_clr_w)
AM_RANGE(0xc0, 0xc0) AM_WRITE(v1050_i8214_w)
AM_RANGE(0xd0, 0xd0) AM_WRITE(bank_w)
AM_RANGE(0xe0, 0xe0) AM_WRITE(sasi_data_w) AM_DEVREAD(SASIBUS_TAG ":host", scsicb_device, scsi_data_r)
AM_RANGE(0xe1, 0xe1) AM_READWRITE(sasi_status_r, sasi_ctrl_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START( v1050_crt_mem, AS_PROGRAM, 8, v1050_state )
AM_RANGE(0x0000, 0x7fff) AM_READWRITE(videoram_r, videoram_w) AM_SHARE("video_ram")
AM_RANGE(0x8000, 0x8000) AM_DEVWRITE(H46505_TAG, mc6845_device, address_w)
AM_RANGE(0x8001, 0x8001) AM_DEVREADWRITE(H46505_TAG, mc6845_device, register_r, register_w)
AM_RANGE(0x9000, 0x9003) AM_DEVREADWRITE(I8255A_M6502_TAG, i8255_device, read, write)
AM_RANGE(0xa000, 0xa000) AM_READWRITE(attr_r, attr_w)
AM_RANGE(0xb000, 0xb000) AM_WRITE(dint_w)
AM_RANGE(0xc000, 0xc000) AM_WRITE(dvint_clr_w)
AM_RANGE(0xe000, 0xffff) AM_ROM
ADDRESS_MAP_END
// Input Ports
static INPUT_PORTS_START( v1050 )
PORT_START("ROW0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) // HELP
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F1)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F2)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F3)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F4)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F5)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F6)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F7)
PORT_START("ROW1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F8)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F9)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F10)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F11)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F12)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F13)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F14)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F15)
PORT_START("ROW2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) // F16
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) // F17
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_START("ROW3")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~')
PORT_START("ROW4")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BREAK") PORT_CODE(KEYCODE_PAUSE)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_START("ROW5")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r')
PORT_START("ROW6")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
PORT_START("ROW7")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SCRLOCK)
PORT_START("ROW8")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) // SHIFT
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_START("ROW9")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) // SHIFT
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LINE FEED") PORT_CODE(KEYCODE_ENTER_PAD)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_NUMLOCK) // DOWN
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_NUMLOCK) // UP
PORT_START("ROW10")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad -") PORT_CODE(KEYCODE_MINUS_PAD)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_START("ROW11")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Keypad +") PORT_CODE(KEYCODE_PLUS_PAD)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD )
PORT_START("ROW12")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LEFT SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RIGHT SHIFT") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LEFT CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RIGHT CTRL") PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(RCONTROL))
INPUT_PORTS_END
// 8214 Interface
WRITE_LINE_MEMBER(v1050_state::pic_int_w)
{
if (state == ASSERT_LINE)
{
m_maincpu->set_input_line(INPUT_LINE_IRQ0, ASSERT_LINE);
}
}
static I8214_INTERFACE( pic_intf )
{
DEVCB_DRIVER_LINE_MEMBER(v1050_state,pic_int_w),
DEVCB_NULL
};
// MSM58321 Interface
static MSM58321_INTERFACE( rtc_intf )
{
DEVCB_NULL
};
// Display 8255A Interface
WRITE8_MEMBER(v1050_state::disp_ppi_pc_w)
{
device_t *device = machine().device(I8255A_M6502_TAG);
i8255_device *ppi = static_cast<i8255_device*>(device);
ppi->pc2_w(BIT(data, 6));
ppi->pc4_w(BIT(data, 7));
}
static I8255A_INTERFACE( disp_ppi_intf )
{
DEVCB_DEVICE_MEMBER(I8255A_M6502_TAG, i8255_device, pb_r), // Port A read
DEVCB_NULL, // Port A write
DEVCB_NULL, // Port B read
DEVCB_NULL, // Port B write
DEVCB_NULL, // Port C read
DEVCB_DRIVER_MEMBER(v1050_state,disp_ppi_pc_w) // Port C write
};
WRITE8_MEMBER(v1050_state::m6502_ppi_pc_w)
{
device_t *device = machine().device(I8255A_DISP_TAG);
i8255_device *ppi = static_cast<i8255_device*>(device);
ppi->pc2_w(BIT(data, 7));
ppi->pc4_w(BIT(data, 6));
}
static I8255A_INTERFACE( m6502_ppi_intf )
{
DEVCB_DEVICE_MEMBER(I8255A_DISP_TAG, i8255_device, pb_r), // Port A read
DEVCB_NULL, // Port A write
DEVCB_NULL, // Port B read
DEVCB_NULL, // Port B write
DEVCB_NULL, // Port C read
DEVCB_DRIVER_MEMBER(v1050_state,m6502_ppi_pc_w) // Port C write
};
// Miscellanous 8255A Interface
WRITE8_MEMBER( v1050_state::misc_ppi_pa_w )
{
/*
bit signal description
PA0 f_ds<0> drive 0 select
PA1 f_ds<1> drive 1 select
PA2 f_ds<2> drive 2 select
PA3 f_ds<3> drive 3 select
PA4 f_side_1 floppy side select
PA5 f_pre_comp precompensation
PA6 f_motor_on* floppy motor
PA7 f_dden* double density select
*/
// floppy drive select
floppy_image_device *floppy = NULL;
if (!BIT(data, 0)) floppy = m_floppy0->get_device();
if (!BIT(data, 1)) floppy = m_floppy1->get_device();
if (!BIT(data, 2)) floppy = m_floppy2->get_device();
if (!BIT(data, 3)) floppy = m_floppy3->get_device();
m_fdc->set_floppy(floppy);
// floppy side select
if (floppy) floppy->ss_w(BIT(data, 4));
// floppy motor
if (floppy) floppy->mon_w(BIT(data, 6));
// density select
m_fdc->dden_w(BIT(data, 7));
}
WRITE8_MEMBER(v1050_state::misc_ppi_pb_w)
{
m_centronics->write(~data & 0xff);
}
READ8_MEMBER(v1050_state::misc_ppi_pc_r)
{
/*
bit signal description
PC0 pr_strobe printer strobe
PC1 f_int_enb floppy interrupt enable
PC2 baud_sel_a
PC3 baud_sel_b
PC4 pr_busy* printer busy
PC5 pr_pe* printer paper end
PC6
PC7
*/
UINT8 data = 0;
data |= m_centronics->not_busy_r() << 4;
data |= m_centronics->pe_r() << 5;
return data;
}
WRITE8_MEMBER( v1050_state::misc_ppi_pc_w )
{
/*
bit signal description
PC0 pr_strobe printer strobe
PC1 f_int_enb floppy interrupt enable
PC2 baud_sel_a
PC3 baud_sel_b
PC4 pr_busy* printer busy
PC5 pr_pe* printer paper end
PC6
PC7
*/
// printer strobe
m_centronics->strobe_w(BIT(data, 0));
// floppy interrupt enable
m_f_int_enb = BIT(data, 1);
update_fdc();
// baud select
int baud_sel = (data >> 2) & 0x03;
if (baud_sel != m_baud_sel)
{
attotime period = attotime::never;
switch (baud_sel)
{
case 0: period = attotime::from_hz((double)XTAL_16MHz/4/13/16); break;
case 1: period = attotime::from_hz((double)XTAL_16MHz/4/13/8); break;
case 2: period = attotime::from_hz((double)XTAL_16MHz/4/8); break;
case 3: period = attotime::from_hz((double)XTAL_16MHz/4/13/2); break;
}
m_timer_sio->adjust(attotime::zero, 0, period);
m_baud_sel = baud_sel;
}
}
static I8255A_INTERFACE( misc_ppi_intf )
{
DEVCB_NULL, // Port A read
DEVCB_DRIVER_MEMBER(v1050_state, misc_ppi_pa_w), // Port A write
DEVCB_NULL, // Port B read
DEVCB_DRIVER_MEMBER(v1050_state,misc_ppi_pb_w), // Port B write
DEVCB_DRIVER_MEMBER(v1050_state,misc_ppi_pc_r), // Port C read
DEVCB_DRIVER_MEMBER(v1050_state, misc_ppi_pc_w) // Port C write
};
// Real Time Clock 8255A Interface
WRITE8_MEMBER( v1050_state::rtc_ppi_pb_w )
{
/*
bit signal description
PB0 RS-232
PB1 Winchester
PB2 keyboard
PB3 floppy disk interrupt
PB4 vertical interrupt
PB5 display interrupt
PB6 expansion B
PB7 expansion A
*/
m_int_mask = data;
}
READ8_MEMBER( v1050_state::rtc_ppi_pc_r )
{
/*
bit signal description
PC0
PC1
PC2
PC3 clock busy
PC4
PC5
PC6
PC7
*/
return m_rtc->busy_r() << 3;
}
WRITE8_MEMBER( v1050_state::rtc_ppi_pc_w )
{
/*
bit signal description
PC0
PC1
PC2
PC3
PC4 clock address write
PC5 clock data write
PC6 clock data read
PC7 clock device select
*/
m_rtc->address_write_w(BIT(data, 4));
m_rtc->write_w(BIT(data, 5));
m_rtc->read_w(BIT(data, 6));
m_rtc->cs2_w(BIT(data, 7));
}
static I8255A_INTERFACE( rtc_ppi_intf )
{
DEVCB_DEVICE_MEMBER(MSM58321RS_TAG, msm58321_device, read),
DEVCB_DEVICE_MEMBER(MSM58321RS_TAG, msm58321_device, write),
DEVCB_NULL,
DEVCB_DRIVER_MEMBER(v1050_state, rtc_ppi_pb_w),
DEVCB_DRIVER_MEMBER(v1050_state, rtc_ppi_pc_r),
DEVCB_DRIVER_MEMBER(v1050_state, rtc_ppi_pc_w)
};
// Keyboard 8251A Interface
TIMER_DEVICE_CALLBACK_MEMBER(v1050_state::kb_8251_tick)
{
m_uart_kb->transmit_clock();
m_uart_kb->receive_clock();
}
WRITE_LINE_MEMBER( v1050_state::kb_rxrdy_w )
{
set_interrupt(INT_KEYBOARD, state);
}
static const i8251_interface kb_8251_intf =
{
DEVCB_DEVICE_LINE_MEMBER(V1050_KEYBOARD_TAG, v1050_keyboard_device, so_r),
DEVCB_DEVICE_LINE_MEMBER(V1050_KEYBOARD_TAG, v1050_keyboard_device, si_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(v1050_state, kb_rxrdy_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
};
// Serial 8251A Interface
TIMER_DEVICE_CALLBACK_MEMBER(v1050_state::sio_8251_tick)
{
m_uart_sio->transmit_clock();
m_uart_sio->receive_clock();
}
WRITE_LINE_MEMBER( v1050_state::sio_rxrdy_w )
{
m_rxrdy = state;
set_interrupt(INT_RS_232, m_rxrdy || m_txrdy);
}
WRITE_LINE_MEMBER( v1050_state::sio_txrdy_w )
{
m_txrdy = state;
set_interrupt(INT_RS_232, m_rxrdy || m_txrdy);
}
static const i8251_interface sio_8251_intf =
{
DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, serial_port_device, rx),
DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, serial_port_device, tx),
DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, dsr_r),
DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, dtr_w),
DEVCB_DEVICE_LINE_MEMBER(RS232_TAG, rs232_port_device, rts_w),
DEVCB_DRIVER_LINE_MEMBER(v1050_state, sio_rxrdy_w),
DEVCB_DRIVER_LINE_MEMBER(v1050_state, sio_txrdy_w),
DEVCB_NULL,
DEVCB_NULL
};
// MB8877 Interface
void v1050_state::update_fdc()
{
if (m_f_int_enb)
{
set_interrupt(INT_FLOPPY, m_fdc_irq ? 1 : 0);
m_maincpu->set_input_line(INPUT_LINE_NMI, m_fdc_drq ? ASSERT_LINE : CLEAR_LINE);
}
else
{
set_interrupt(INT_FLOPPY, 0);
m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
}
}
static SLOT_INTERFACE_START( v1050_floppies )
SLOT_INTERFACE( "525ssqd", FLOPPY_525_SSQD ) // Teac FD 55E-02-U
SLOT_INTERFACE( "525qd", FLOPPY_525_QD ) // Teac FD 55-FV-35-U
SLOT_INTERFACE_END
void v1050_state::fdc_intrq_w(bool state)
{
m_fdc_irq = state;
update_fdc();
}
void v1050_state::fdc_drq_w(bool state)
{
m_fdc_drq = state;
update_fdc();
}
//-------------------------------------------------
// rs232_port_interface rs232_intf
//-------------------------------------------------
static const rs232_port_interface rs232_intf =
{
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
};
/*
static LEGACY_FLOPPY_OPTIONS_START( v1050 )
LEGACY_FLOPPY_OPTION( v1050, "dsk", "Visual 1050 disk image", basicdsk_identify_default, basicdsk_construct_default, NULL,
HEADS([1])
TRACKS([80])
SECTORS([10])
SECTOR_LENGTH([512])
FIRST_SECTOR_ID([1]))
LEGACY_FLOPPY_OPTIONS_END
*/
// Machine Initialization
IRQ_CALLBACK_MEMBER(v1050_state::v1050_int_ack)
{
UINT8 vector = 0xf0 | (m_pic->a_r() << 1);
//logerror("Interrupt Acknowledge Vector: %02x\n", vector);
m_maincpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE);
return vector;
}
void v1050_state::machine_start()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
// floppy callbacks
m_fdc->setup_intrq_cb(wd_fdc_t::line_cb(FUNC(v1050_state::fdc_intrq_w), this));
m_fdc->setup_drq_cb(wd_fdc_t::line_cb(FUNC(v1050_state::fdc_drq_w), this));
// initialize I8214
m_pic->etlg_w(1);
m_pic->inte_w(1);
// initialize RTC
m_rtc->cs1_w(1);
// set CPU interrupt callback
m_maincpu->set_irq_acknowledge_callback(device_irq_acknowledge_delegate(FUNC(v1050_state::v1050_int_ack),this));
// setup memory banking
UINT8 *ram = m_ram->pointer();
membank("bank1")->configure_entries(0, 2, ram, 0x10000);
membank("bank1")->configure_entry(2, ram + 0x1c000);
membank("bank1")->configure_entry(3, m_rom->base());
program.install_readwrite_bank(0x2000, 0x3fff, "bank2");
membank("bank2")->configure_entries(0, 2, ram + 0x2000, 0x10000);
membank("bank2")->configure_entry(2, ram + 0x1e000);
program.install_readwrite_bank(0x4000, 0x7fff, "bank3");
membank("bank3")->configure_entries(0, 2, ram + 0x4000, 0x10000);
program.install_readwrite_bank(0x8000, 0xbfff, "bank4");
membank("bank4")->configure_entries(0, 2, ram + 0x8000, 0x10000);
program.install_readwrite_bank(0xc000, 0xffff, "bank5");
membank("bank5")->configure_entries(0, 3, ram + 0xc000, 0);
bankswitch();
// register for state saving
save_item(NAME(m_int_mask));
save_item(NAME(m_int_state));
save_item(NAME(m_f_int_enb));
save_item(NAME(m_fdc_irq));
save_item(NAME(m_fdc_drq));
save_item(NAME(m_keylatch));
save_item(NAME(m_keydata));
save_item(NAME(m_keyavail));
save_item(NAME(m_rxrdy));
save_item(NAME(m_txrdy));
save_item(NAME(m_baud_sel));
save_item(NAME(m_bank));
}
void v1050_state::machine_reset()
{
m_bank = 0;
bankswitch();
m_timer_sio->adjust(attotime::zero, 0, attotime::from_hz((double)XTAL_16MHz/4/13/16));
m_fdc->reset();
}
// Machine Driver
static MACHINE_CONFIG_START( v1050, v1050_state )
// basic machine hardware
MCFG_CPU_ADD(Z80_TAG, Z80, XTAL_16MHz/4)
MCFG_CPU_PROGRAM_MAP(v1050_mem)
MCFG_CPU_IO_MAP(v1050_io)
MCFG_QUANTUM_PERFECT_CPU(Z80_TAG)
MCFG_CPU_ADD(M6502_TAG, M6502, XTAL_15_36MHz/16)
MCFG_CPU_PROGRAM_MAP(v1050_crt_mem)
MCFG_QUANTUM_PERFECT_CPU(M6502_TAG)
// keyboard HACK
MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard", v1050_state, v1050_keyboard_tick, attotime::from_hz(60))
// video hardware
MCFG_FRAGMENT_ADD(v1050_video)
// devices
MCFG_I8214_ADD(UPB8214_TAG, XTAL_16MHz/4, pic_intf)
MCFG_MSM58321_ADD(MSM58321RS_TAG, XTAL_32_768kHz, rtc_intf)
MCFG_I8255A_ADD(I8255A_DISP_TAG, disp_ppi_intf)
MCFG_I8255A_ADD(I8255A_MISC_TAG, misc_ppi_intf)
MCFG_I8255A_ADD(I8255A_RTC_TAG, rtc_ppi_intf)
MCFG_I8255A_ADD(I8255A_M6502_TAG, m6502_ppi_intf)
MCFG_I8251_ADD(I8251A_KB_TAG, /*XTAL_16MHz/8,*/ kb_8251_intf)
MCFG_I8251_ADD(I8251A_SIO_TAG, /*XTAL_16MHz/8,*/ sio_8251_intf)
MCFG_MB8877x_ADD(MB8877_TAG, XTAL_16MHz/16)
MCFG_FLOPPY_DRIVE_ADD(MB8877_TAG":0", v1050_floppies, "525qd", floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(MB8877_TAG":1", v1050_floppies, "525qd", floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(MB8877_TAG":2", v1050_floppies, NULL, floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(MB8877_TAG":3", v1050_floppies, NULL, floppy_image_device::default_floppy_formats)
MCFG_TIMER_DRIVER_ADD_PERIODIC(TIMER_KB_TAG, v1050_state, kb_8251_tick, attotime::from_hz((double)XTAL_16MHz/4/13/8))
MCFG_TIMER_DRIVER_ADD(TIMER_SIO_TAG, v1050_state, sio_8251_tick)
MCFG_RS232_PORT_ADD(RS232_TAG, rs232_intf, default_rs232_devices, NULL)
// SASI bus
MCFG_SCSIBUS_ADD(SASIBUS_TAG)
MCFG_SCSIDEV_ADD(SASIBUS_TAG ":harddisk0", S1410, SCSI_ID_0)
MCFG_SCSICB_ADD(SASIBUS_TAG ":host")
MCFG_SCSICB_IO_HANDLER(DEVWRITELINE(DEVICE_SELF_OWNER, v1050_state, sasi_io_w))
MCFG_TIMER_DRIVER_ADD(TIMER_ACK_TAG, v1050_state, sasi_ack_tick)
MCFG_TIMER_DRIVER_ADD(TIMER_RST_TAG, v1050_state, sasi_rst_tick)
// keyboard
MCFG_V1050_KEYBOARD_ADD()
// software lists
MCFG_SOFTWARE_LIST_ADD("disk_list","v1050")
// printer
MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, standard_centronics)
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("128K")
MACHINE_CONFIG_END
// ROMs
ROM_START( v1050 )
ROM_REGION( 0x10000, Z80_TAG, 0 )
ROM_LOAD( "e244-032 rev 1.2.u86", 0x0000, 0x2000, CRC(46f847a7) SHA1(374db7a38a9e9230834ce015006e2f1996b9609a) )
ROM_REGION( 0x10000, M6502_TAG, 0 )
ROM_LOAD( "e244-033 rev 1.1.u77", 0xe000, 0x2000, CRC(c0502b66) SHA1(bc0015f5b14f98110e652eef9f7c57c614683be5) )
ROM_END
// System Drivers
// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS
COMP( 1983, v1050, 0, 0, v1050, v1050, driver_device, 0, "Visual Technology Inc", "Visual 1050", GAME_NOT_WORKING | GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE | GAME_NO_SOUND | GAME_IMPERFECT_KEYBOARD )
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