summaryrefslogtreecommitdiffstatshomepage
path: root/src/mess/drivers/pc1512.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mess/drivers/pc1512.c')
-rw-r--r--src/mess/drivers/pc1512.c1504
1 files changed, 1504 insertions, 0 deletions
diff --git a/src/mess/drivers/pc1512.c b/src/mess/drivers/pc1512.c
new file mode 100644
index 00000000000..abd5566cc1e
--- /dev/null
+++ b/src/mess/drivers/pc1512.c
@@ -0,0 +1,1504 @@
+/*
+
+ Amstrad PC1512
+
+ http://www.seasip.info/AmstradXT
+ http://stason.org/TULARC/pc/hard-drives-hdd/tandon/TM262-21MB-5-25-HH-MFM-ST506.html
+
+*/
+
+/*
+
+ TODO:
+
+ - adjust mouse speed
+ - RTC should not be y2k compliant
+ - V3 VDU check fails
+
+*/
+
+#include "includes/pc1512.h"
+
+
+
+//**************************************************************************
+// SYSTEM STATUS REGISTER
+//**************************************************************************
+
+//-------------------------------------------------
+// system_r -
+//-------------------------------------------------
+
+READ8_MEMBER( pc1512_state::system_r )
+{
+ UINT8 data = 0;
+
+ switch (offset)
+ {
+ case 0:
+ if (BIT(m_port61, 7))
+ {
+ /*
+
+ bit description
+
+ 0 1
+ 1 8087 NDP installed
+ 2 1
+ 3 1
+ 4 DDM0
+ 5 DDM1
+ 6 second floppy disk drive installed
+ 7 0
+
+ */
+
+ data = m_status1;
+ }
+ else
+ {
+ data = m_kbd;
+ m_kb_bits = 0;
+ m_kb->data_w(1);
+ pic8259_ir1_w(m_pic, CLEAR_LINE);
+ }
+ break;
+
+ case 1:
+ data = m_port61;
+ break;
+
+ case 2:
+ /*
+
+ bit description
+
+ 0 RAM0 / RAM4
+ 1 RAM1
+ 2 RAM2
+ 3 RAM3
+ 4 undefined
+ 5 8253 PIT OUT2 output
+ 6 external parity error (I/OCHCK from expansion bus)
+ 7 on-board system RAM parity error
+
+ */
+
+ if (BIT(m_port61, 2))
+ data = m_status2 & 0x0f;
+ else
+ data = m_status2 >> 4;
+
+ data |= m_pit2 << 5;
+ break;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// system_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( pc1512_state::system_w )
+{
+ switch (offset)
+ {
+ case 1:
+ /*
+
+ bit description
+
+ 0 8253 GATE 2 (speaker modulate)
+ 1 speaker drive
+ 2 enable port C LSB / disable MSB
+ 3 undefined
+ 4 disable parity checking of on-board RAM
+ 5 prevent external parity errors from causing NMI
+ 6 enable incoming Keyboard Clock
+ 7 enable Status-1/Disable Keyboard Code on Port A
+
+ */
+
+ m_port61 = data;
+
+ pit8253_gate2_w(m_pit, BIT(data, 0));
+
+ m_speaker_drive = BIT(data, 1);
+ update_speaker();
+
+ m_kb->clock_w(BIT(data, 6));
+ break;
+
+ case 4:
+ /*
+
+ bit description
+
+ 0
+ 1 PA1 - 8087 NDP installed
+ 2
+ 3
+ 4 PA4 - DDM0
+ 5 PA5 - DDM1
+ 6 PA6 - Second Floppy disk drive installed
+ 7
+
+ */
+
+ if (BIT(data, 7))
+ m_status1 = data ^ 0x8d;
+ else
+ m_status1 = data;
+ break;
+
+ case 5:
+ /*
+
+ bit description
+
+ 0 PC0 (LSB) - RAM0
+ 1 PC1 (LSB) - RAM1
+ 2 PC2 (LSB) - RAM2
+ 3 PC3 (LSB) - RAM3
+ 4 PC0 (MSB) - RAM4
+ 5 PC1 (MSB) - Undefined
+ 6 PC2 (MSB) - Undefined
+ 7 PC3 (MSB) - Undefined
+
+ */
+
+ m_status2 = data;
+ break;
+
+ case 6:
+ machine_reset();
+ break;
+ }
+}
+
+
+
+//**************************************************************************
+// MOUSE
+//**************************************************************************
+
+//-------------------------------------------------
+// mouse_r -
+//-------------------------------------------------
+
+READ8_MEMBER( pc1512_state::mouse_r )
+{
+ UINT8 data = 0;
+
+ switch (offset)
+ {
+ case 0:
+ data = m_mouse_x;
+ break;
+
+ case 2:
+ data = m_mouse_y;
+ break;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// mouse_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( pc1512_state::mouse_w )
+{
+ switch (offset)
+ {
+ case 0:
+ m_mouse_x = 0;
+ break;
+
+ case 2:
+ m_mouse_y = 0;
+ break;
+ }
+}
+
+
+
+//**************************************************************************
+// DIRECT MEMORY ACCESS
+//**************************************************************************
+
+//-------------------------------------------------
+// dma_page_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( pc1512_state::dma_page_w )
+{
+ /*
+
+ bit description
+
+ 0 Address bit A16
+ 1 Address bit A17
+ 2 Address bit A18
+ 3 Address bit A19
+ 4
+ 5
+ 6
+ 7
+
+ */
+
+ switch (offset)
+ {
+ case 1:
+ m_dma_page[2] = data & 0x0f;
+ break;
+
+ case 2:
+ m_dma_page[3] = data & 0x0f;
+ break;
+
+ case 3:
+ m_dma_page[0] = m_dma_page[1] = data & 0x0f;
+ break;
+ }
+}
+
+
+
+//**************************************************************************
+// INTERRUPTS
+//**************************************************************************
+
+//-------------------------------------------------
+// nmi_mask_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( pc1512_state::nmi_mask_w )
+{
+ m_nmi_enable = BIT(data, 7);
+}
+
+
+
+//**************************************************************************
+// PRINTER
+//**************************************************************************
+
+//-------------------------------------------------
+// printer_r -
+//-------------------------------------------------
+
+READ8_MEMBER( pc1512_state::printer_r )
+{
+ UINT8 data = 0;
+
+ switch (offset)
+ {
+ case 0:
+ data = m_printer_data;
+ break;
+
+ case 1:
+ /*
+
+ bit description
+
+ 0 LK1 fitted
+ 1 LK2 fitted
+ 2 LK3 fitted
+ 3 printer error
+ 4 printer selected
+ 5 paper out
+ 6 printer acknowledge
+ 7 printer busy
+
+ */
+
+ data |= ioport("LK")->read() & 0x07;
+
+ data |= m_centronics->fault_r() << 3;
+ data |= m_centronics->vcc_r() << 4;
+ data |= m_centronics->pe_r() << 5;
+ data |= m_centronics->ack_r() << 6;
+ data |= m_centronics->busy_r() << 7;
+ break;
+
+ case 2:
+ /*
+
+ bit description
+
+ 0 Data Strobe
+ 1 Select Auto Feed
+ 2 Reset Printer
+ 3 Select Printer
+ 4 Enable Int on ACK
+ 5 1
+ 6
+ 7
+
+ */
+
+ data = m_printer_control | 0x20;
+ break;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// printer_r -
+//-------------------------------------------------
+
+READ8_MEMBER( pc1640_state::printer_r )
+{
+ UINT8 data = 0;
+
+ switch (offset)
+ {
+ case 2:
+ /*
+
+ bit description
+
+ 0 Data Strobe
+ 1 Select Auto Feed
+ 2 Reset Printer
+ 3 Select Printer
+ 4 Enable Int on ACK
+ 5 OPT
+ 6 SW6
+ 7 SW7
+
+ */
+
+ /*
+ Bit D5 is the option (OPT) bit and can return one of three different pieces of
+ information. Although not documented as such on the PC1512, Bit D5 was always a
+ "1", however on the PC1640 it will always be a zero if immediately prior to the
+ read of channel 037Ah the software performs an I/O read of an I/O channel
+ implemented on the PC1512 main board, having address line A7 high (for example,
+ the CGA channels). This is a simple test for software to detect whether it is
+ running on a PC1512 or a PC1640. A PC1512 will give a 1, whereas a PC1640 will
+ give a 0.
+
+ In addition to being a test of machine type the OPT bit, D5, can also reflect
+ the state of either SW9 or SW10. The OPT bit will reflect the state of switch
+ SW9 by an I/O read operation to an I/O channel not implemented on the main
+ board and having address lines A14 and A7 both low (for example channel 0278h)
+ immediately prior to the reading of channel 037Ah. The OPT bit is set to the
+ state of switch SW10 by an I/O read operation to an I/O channel not implemented
+ on the main board having address lines A14 high and A7 low (for example channel
+ 4278h). Software testing OPT bit should disable interrupts before the initial
+ (dummy) channel read and the I/O read of channel 037A in order to avoid
+ additional (interrupt based) I/O operations between the setting and the testing
+ of the information read back in the OPT bit. For switches SW9 and SW10, a logic
+ "1" is returned when the switch is on the "on" position and a logic "0" if the
+ switch is in the "off" position.
+ */
+ data = m_printer_control;
+ data |= m_opt << 5;
+ data |= (ioport("SW")->read() & 0x60) << 1;
+ break;
+
+ default:
+ data = pc1512_state::printer_r(space, offset);
+ break;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// printer_w -
+//-------------------------------------------------
+
+WRITE8_MEMBER( pc1512_state::printer_w )
+{
+ switch (offset)
+ {
+ case 0:
+ m_printer_data = data;
+ m_centronics->write(space, 0, data);
+ break;
+
+ case 2:
+ /*
+
+ bit description
+
+ 0 Data Strobe
+ 1 Select Auto Feed
+ 2 Reset Printer
+ 3 Select Printer
+ 4 Enable Int on ACK
+ 5
+ 6
+ 7
+
+ */
+
+ m_printer_control = data & 0x1f;
+
+ m_centronics->strobe_w(BIT(data, 0));
+ m_centronics->autofeed_w(BIT(data, 1));
+ m_centronics->init_prime_w(BIT(data, 2));
+
+ m_ack_int_enable = BIT(data, 4);
+ update_ack();
+ break;
+ }
+}
+
+
+
+//**************************************************************************
+// FLOPPY
+//**************************************************************************
+
+//-------------------------------------------------
+// fdc_r -
+//-------------------------------------------------
+
+READ8_MEMBER( pc1512_state::fdc_r )
+{
+ UINT8 data = 0;
+
+ switch (offset)
+ {
+ case 4:
+ data = upd765_status_r(m_fdc, 0);
+ break;
+
+ case 5:
+ data = upd765_data_r(m_fdc, 0);
+ break;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// fdc_w -
+//-------------------------------------------------
+
+void pc1512_state::set_fdc_dsr(UINT8 data)
+{
+ /*
+
+ bit description
+
+ 0 Drive Select Bit 0 (DS0)
+ 1 Drive Select Bit 1 (DS1)
+ 2 765A reset
+ 3 Allow 765A FDC to interrupt and request DMA
+ 4 Switch motor(s) on and enable drive 0 selection
+ 5 Switch motor(s) on and enable drive 1 selection
+ 6
+ 7
+
+ */
+
+ m_fdc_dsr = data;
+
+ m_nden = BIT(data, 3);
+ update_fdc_int();
+ update_fdc_drq();
+ update_fdc_tc();
+
+ upd765_reset_w(m_fdc, BIT(data, 2));
+
+ floppy_mon_w(m_floppy0, BIT(data, 4) ? CLEAR_LINE : ASSERT_LINE);
+ floppy_mon_w(m_floppy1, BIT(data, 5) ? CLEAR_LINE : ASSERT_LINE);
+}
+
+WRITE8_MEMBER( pc1512_state::fdc_w )
+{
+ switch (offset)
+ {
+ case 2:
+ set_fdc_dsr(data);
+ break;
+
+ case 5:
+ upd765_data_w(m_fdc, 0, data);
+ break;
+ }
+}
+
+
+
+//**************************************************************************
+// PC1640 I/O ACCESS
+//**************************************************************************
+
+//-------------------------------------------------
+// io_r -
+//-------------------------------------------------
+
+READ8_MEMBER( pc1640_state::io_r )
+{
+ UINT8 data = 0;
+ offs_t addr = offset & 0x3ff;
+ bool decoded = false;
+
+ if ( addr <= 0x00f) { data = m_dmac->read(space, offset & 0x0f); decoded = true; }
+ else if (addr >= 0x020 && addr <= 0x021) { data = pic8259_r(m_pic, offset & 0x01); decoded = true; }
+ else if (addr >= 0x040 && addr <= 0x043) { data = pit8253_r(m_pit, offset & 0x03); decoded = true; }
+ else if (addr >= 0x060 && addr <= 0x06f) { data = system_r(space, offset & 0x0f); decoded = true; }
+ else if (addr >= 0x070 && addr <= 0x073) { data = m_rtc->read(space, offset & 0x01); decoded = true; }
+ else if (addr >= 0x078 && addr <= 0x07f) { data = mouse_r(space, offset & 0x07); decoded = true; }
+ else if (addr >= 0x378 && addr <= 0x37b) { data = printer_r(space, offset & 0x03); decoded = true; }
+ else if (addr >= 0x3b0 && addr <= 0x3df) { data = iga_r(space, addr - 0x3b0); decoded = true; }
+ else if (addr >= 0x3f0 && addr <= 0x3f7) { data = fdc_r(space, offset & 0x07); decoded = true; }
+ else if (addr >= 0x3f8 && addr <= 0x3ff) { data = m_uart->ins8250_r(space, offset & 0x07); decoded = true; }
+
+ if (decoded)
+ {
+ if (BIT(offset, 7))
+ {
+ m_opt = 0;
+ //logerror("OPT 0\n");
+ }
+ }
+ else if (!BIT(offset, 7))
+ {
+ UINT16 sw = ioport("SW")->read();
+
+ if (!BIT(offset, 14))
+ {
+ m_opt = BIT(sw, 8);
+ logerror("OPT SW9 %u\n", m_opt);
+ }
+ else
+ {
+ m_opt = BIT(sw, 9);
+ logerror("OPT SW10 %u\n", m_opt);
+ }
+ }
+
+ return data;
+}
+
+
+
+//**************************************************************************
+// ADDRESS MAPS
+//**************************************************************************
+
+//-------------------------------------------------
+// ADDRESS_MAP( pc1512_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( pc1512_mem, AS_PROGRAM, 16, pc1512_state )
+ AM_RANGE(0x00000, 0x9ffff) AM_RAM
+ AM_RANGE(0xb8000, 0xbbfff) AM_READWRITE8(video_ram_r, video_ram_w, 0xffff)
+ AM_RANGE(0xfc000, 0xfffff) AM_ROM AM_REGION(I8086_TAG, 0)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( pc1512_io )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( pc1512_io, AS_IO, 16, pc1512_state )
+ ADDRESS_MAP_GLOBAL_MASK(0x3ff)
+ AM_RANGE(0x000, 0x00f) AM_DEVREADWRITE8(I8237A5_TAG, am9517a_device, read, write, 0xffff)
+ AM_RANGE(0x020, 0x021) AM_DEVREADWRITE8_LEGACY(I8259A2_TAG, pic8259_r, pic8259_w, 0xffff)
+ AM_RANGE(0x040, 0x043) AM_DEVREADWRITE8_LEGACY(I8253_TAG, pit8253_r, pit8253_w, 0xffff)
+ AM_RANGE(0x060, 0x06f) AM_READWRITE8(system_r, system_w, 0xffff)
+ AM_RANGE(0x070, 0x071) AM_MIRROR(0x02) AM_DEVREADWRITE8(MC146818_TAG, mc146818_device, read, write, 0xffff)
+ AM_RANGE(0x078, 0x07f) AM_READWRITE8(mouse_r, mouse_w, 0xffff)
+ AM_RANGE(0x080, 0x083) AM_WRITE8(dma_page_w, 0xffff)
+ AM_RANGE(0x0a0, 0x0a1) AM_WRITE8(nmi_mask_w, 0xff00)
+ AM_RANGE(0x378, 0x37b) AM_READWRITE8(printer_r, printer_w, 0xffff)
+ AM_RANGE(0x3d0, 0x3df) AM_READWRITE8(vdu_r, vdu_w, 0xffff)
+ AM_RANGE(0x3f0, 0x3f7) AM_READWRITE8(fdc_r, fdc_w, 0xffff)
+ AM_RANGE(0x3f8, 0x3ff) AM_DEVREADWRITE8(INS8250_TAG, ins8250_device, ins8250_r, ins8250_w, 0xffff)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( pc1640_mem )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( pc1640_mem, AS_PROGRAM, 16, pc1640_state )
+ AM_RANGE(0x00000, 0x9ffff) AM_RAM
+ AM_RANGE(0xa0000, 0xbffff) AM_READWRITE8(video_ram_r, video_ram_w, 0xffff)
+ AM_RANGE(0xc0000, 0xc7fff) AM_ROM AM_REGION("iga", 0)
+// AM_RANGE(0xc8000, 0xc9fff) AM_ROM AM_REGION("hdc", 0)
+ AM_RANGE(0xf0000, 0xf3fff) AM_MIRROR(0xc000) AM_ROM AM_REGION(I8086_TAG, 0)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( pc1640_io )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( pc1640_io, AS_IO, 16, pc1640_state )
+ AM_RANGE(0x0000, 0xffff) AM_READ8(io_r, 0xffff)
+ AM_RANGE(0x000, 0x00f) AM_DEVWRITE8(I8237A5_TAG, am9517a_device, write, 0xffff)
+ AM_RANGE(0x020, 0x021) AM_DEVWRITE8_LEGACY(I8259A2_TAG, pic8259_w, 0xffff)
+ AM_RANGE(0x040, 0x043) AM_DEVWRITE8_LEGACY(I8253_TAG, pit8253_w, 0xffff)
+ AM_RANGE(0x060, 0x06f) AM_WRITE8(system_w, 0xffff)
+ AM_RANGE(0x070, 0x071) AM_MIRROR(0x02) AM_DEVWRITE8(MC146818_TAG, mc146818_device, write, 0xffff)
+ AM_RANGE(0x078, 0x07f) AM_WRITE8(mouse_w, 0xffff)
+ AM_RANGE(0x080, 0x083) AM_WRITE8(dma_page_w, 0xffff)
+ AM_RANGE(0x0a0, 0x0a1) AM_WRITE8(nmi_mask_w, 0xff00)
+ AM_RANGE(0x378, 0x37b) AM_WRITE8(printer_w, 0xffff)
+ AM_RANGE(0x3b0, 0x3df) AM_WRITE8(iga_w, 0xffff)
+ AM_RANGE(0x3f0, 0x3f7) AM_WRITE8(fdc_w, 0xffff)
+ AM_RANGE(0x3f8, 0x3ff) AM_DEVWRITE8(INS8250_TAG, ins8250_device, ins8250_w, 0xffff)
+ADDRESS_MAP_END
+
+
+
+//**************************************************************************
+// INPUT PORTS
+//**************************************************************************
+
+//-------------------------------------------------
+// INPUT_CHANGED( mouse_button_1_changed )
+//-------------------------------------------------
+
+INPUT_CHANGED_MEMBER( pc1512_state::mouse_button_1_changed )
+{
+ m_kb->m1_w(newval);
+}
+
+
+//-------------------------------------------------
+// INPUT_CHANGED( mouse_button_2_changed )
+//-------------------------------------------------
+
+INPUT_CHANGED_MEMBER( pc1512_state::mouse_button_2_changed )
+{
+ m_kb->m2_w(newval);
+}
+
+
+//-------------------------------------------------
+// INPUT_CHANGED( mouse_x_changed )
+//-------------------------------------------------
+
+INPUT_CHANGED_MEMBER( pc1512_state::mouse_x_changed )
+{
+ if (newval > oldval)
+ m_mouse_x++;
+ else
+ m_mouse_x--;
+}
+
+
+//-------------------------------------------------
+// INPUT_CHANGED( mouse_y_changed )
+//-------------------------------------------------
+
+INPUT_CHANGED_MEMBER( pc1512_state::mouse_y_changed )
+{
+ if (newval > oldval)
+ m_mouse_y--;
+ else
+ m_mouse_y++;
+}
+
+
+//-------------------------------------------------
+// INPUT_PORTS( mouse )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( mouse )
+ PORT_START("MOUSEB")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SPECIAL ) PORT_NAME("Left Mouse Button") PORT_CODE(MOUSECODE_BUTTON1) PORT_CHANGED_MEMBER(DEVICE_SELF, pc1512_state, mouse_button_1_changed, 0)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SPECIAL ) PORT_NAME("Right Mouse Button") PORT_CODE(MOUSECODE_BUTTON2) PORT_CHANGED_MEMBER(DEVICE_SELF, pc1512_state, mouse_button_2_changed, 0)
+
+ PORT_START("MOUSEX")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_X ) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(1) PORT_CHANGED_MEMBER(DEVICE_SELF, pc1512_state, mouse_x_changed, 0)
+
+ PORT_START("MOUSEY")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_Y ) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(1) PORT_CHANGED_MEMBER(DEVICE_SELF, pc1512_state, mouse_y_changed, 0)
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// INPUT_PORTS( pc1512 )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( pc1512 )
+ PORT_INCLUDE( mouse )
+
+ PORT_START("LK")
+ PORT_DIPNAME( 0x07, 0x07, DEF_STR( Language ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( English ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( German ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( French ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Spanish ) )
+ PORT_DIPSETTING( 0x03, "Danish" )
+ PORT_DIPSETTING( 0x02, "Swedish" )
+ PORT_DIPSETTING( 0x01, DEF_STR( Italian ) )
+ PORT_DIPSETTING( 0x00, "Diagnostic Mode" )
+ PORT_DIPNAME( 0x08, 0x08, "Memory Size")
+ PORT_DIPSETTING( 0x08, "512 KB" )
+ PORT_DIPSETTING( 0x00, "640 KB" )
+ PORT_DIPNAME( 0x10, 0x10, "ROM Size")
+ PORT_DIPSETTING( 0x10, "16 KB" )
+ PORT_DIPSETTING( 0x00, "32 KB" )
+ PORT_DIPNAME( 0x60, 0x60, "Character Set")
+ PORT_DIPSETTING( 0x60, "Default (Codepage 437)" )
+ PORT_DIPSETTING( 0x40, "Portugese (Codepage 865)" )
+ PORT_DIPSETTING( 0x20, "Norwegian (Codepage 860)" )
+ PORT_DIPSETTING( 0x00, "Greek")
+ PORT_DIPNAME( 0x80, 0x80, "Floppy Ready Line")
+ PORT_DIPSETTING( 0x80, "Connected" )
+ PORT_DIPSETTING( 0x00, "Not connected" )
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// INPUT_PORTS( pc1640 )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( pc1640 )
+ PORT_INCLUDE( mouse )
+
+ PORT_START("LK")
+ PORT_DIPNAME( 0x07, 0x07, DEF_STR( Language ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( English ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( German ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( French ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Spanish ) )
+ PORT_DIPSETTING( 0x03, "Danish" )
+ PORT_DIPSETTING( 0x02, "Swedish" )
+ PORT_DIPSETTING( 0x01, DEF_STR( Italian ) )
+ PORT_DIPSETTING( 0x00, "Diagnostic Mode" )
+
+ PORT_START("SW")
+ PORT_DIPNAME( 0x0f, 0x09, "Initial Display Mode" ) PORT_DIPLOCATION("SW:1,2,3,4") PORT_CONDITION("SW", 0x200, EQUALS, 0x200)
+ PORT_DIPSETTING( 0x0b, "Internal MD, External CGA80" )
+ PORT_DIPSETTING( 0x0a, "Internal MD, External CGA40" )
+ PORT_DIPSETTING( 0x09, "Internal ECD350, External MDA/HERC" )
+ PORT_DIPSETTING( 0x08, "Internal ECD200, External MDA/HERC" )
+ PORT_DIPSETTING( 0x07, "Internal CD80, External MDA/HERC" )
+ PORT_DIPSETTING( 0x06, "Internal CD40, External MDA/HERC" )
+ PORT_DIPSETTING( 0x05, "External CGA80, Internal MD" )
+ PORT_DIPSETTING( 0x04, "External CGA40, Internal MD" )
+ PORT_DIPSETTING( 0x03, "External MDA/HERC, Internal ECD350" )
+ PORT_DIPSETTING( 0x02, "External MDA/HERC, Internal ECD200" )
+ PORT_DIPSETTING( 0x01, "External MDA/HERC, Internal CD80" )
+ PORT_DIPSETTING( 0x00, "External MDA/HERC, Internal CD40" )
+ PORT_DIPNAME( 0x10, 0x10, "MC6845 Mode" ) PORT_DIPLOCATION("SW:5") PORT_CONDITION("SW", 0x200, EQUALS, 0x200)
+ PORT_DIPSETTING( 0x10, "EGA" )
+ PORT_DIPSETTING( 0x00, "CGA/MDA/HERC" )
+ PORT_DIPNAME( 0x60, 0x00, "Font" ) PORT_DIPLOCATION("SW:6,7") PORT_CONDITION("SW", 0x300, EQUALS, 0x300)
+ PORT_DIPSETTING( 0x00, DEF_STR( English ) )
+ PORT_DIPSETTING( 0x60, "Danish" )
+ PORT_DIPSETTING( 0x40, "Portuguese" )
+ PORT_DIPSETTING( 0x20, "Greek" )
+ PORT_DIPNAME( 0x60, 0x60, "Default Display Mode" ) PORT_DIPLOCATION("SW:6,7") PORT_CONDITION("SW", 0x200, EQUALS, 0x000)
+ PORT_DIPSETTING( 0x60, "External EGA" )
+ PORT_DIPSETTING( 0x40, "External CGA in 40 Column Mode" )
+ PORT_DIPSETTING( 0x20, "External CGA in 80 Column Mode" )
+ PORT_DIPSETTING( 0x00, "External Monochrome Adapter" )
+ PORT_DIPNAME( 0x80, 0x00, "Monitor" ) PORT_DIPLOCATION("SW:8") PORT_CONDITION("SW", 0x200, EQUALS, 0x200)
+ PORT_DIPSETTING( 0x80, "CD (Standard RGB)" )
+ PORT_DIPSETTING( 0x00, "ECD (Enhanced RGB)" )
+ PORT_DIPNAME( 0x100, 0x100, "Foreign Fonts" ) PORT_DIPLOCATION("SW:9") PORT_CONDITION("SW", 0x200, EQUALS, 0x200)
+ PORT_DIPSETTING( 0x100, "Enabled" )
+ PORT_DIPSETTING( 0x000, "Disabled" )
+ PORT_DIPNAME( 0x200, 0x200, "Internal Graphics Adapter" ) PORT_DIPLOCATION("SW:10")
+ PORT_DIPSETTING( 0x200, "Enabled" )
+ PORT_DIPSETTING( 0x000, "Disabled" )
+INPUT_PORTS_END
+
+
+
+//**************************************************************************
+// DEVICE CONFIGURATION
+//**************************************************************************
+
+//-------------------------------------------------
+// PC1512_KEYBOARD_INTERFACE( kb_intf )
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( pc1512_state::kbdata_w )
+{
+ m_kbdata = state;
+}
+
+WRITE_LINE_MEMBER( pc1512_state::kbclk_w )
+{
+ if (!BIT(m_port61, 7) && m_kbclk && !state)
+ {
+ m_kbd <<= 1;
+ m_kbd |= m_kbdata;
+ m_kb_bits++;
+
+ if (m_kb_bits == 8)
+ {
+ m_kb->data_w(0);
+ pic8259_ir1_w(m_pic, ASSERT_LINE);
+ }
+ }
+
+ m_kbclk = state;
+}
+
+static PC1512_KEYBOARD_INTERFACE( kb_intf )
+{
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, kbdata_w),
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, kbclk_w)
+};
+
+
+//-------------------------------------------------
+// I8237_INTERFACE( dmac_intf )
+//-------------------------------------------------
+
+void pc1512_state::update_fdc_tc()
+{
+ if (m_nden)
+ upd765_tc_w(m_fdc, m_neop);
+ else
+ upd765_tc_w(m_fdc, 0);
+}
+
+WRITE_LINE_MEMBER( pc1512_state::hrq_w )
+{
+ m_maincpu->set_input_line(INPUT_LINE_HALT, state ? ASSERT_LINE : CLEAR_LINE);
+
+ m_dmac->hack_w(state);
+}
+
+WRITE_LINE_MEMBER( pc1512_state::eop_w )
+{
+ if (m_dma_channel == 2)
+ {
+ m_neop = !state;
+ update_fdc_tc();
+ }
+}
+
+READ8_MEMBER( pc1512_state::memr_r )
+{
+ address_space *program = m_maincpu->memory().space(AS_PROGRAM);
+ offs_t page_offset = m_dma_page[m_dma_channel] << 16;
+
+ return program->read_byte(page_offset + offset);
+}
+
+WRITE8_MEMBER( pc1512_state::memw_w )
+{
+ address_space *program = m_maincpu->memory().space(AS_PROGRAM);
+ offs_t page_offset = m_dma_page[m_dma_channel] << 16;
+
+ program->write_byte(page_offset + offset, data);
+}
+
+READ8_MEMBER( pc1512_state::ior1_r )
+{
+ return m_bus->dack_r(1);
+}
+
+READ8_MEMBER( pc1512_state::ior2_r )
+{
+ if (m_nden)
+ return upd765_dack_r(m_fdc, 0);
+ else
+ return m_bus->dack_r(2);
+}
+
+READ8_MEMBER( pc1512_state::ior3_r )
+{
+ return m_bus->dack_r(3);
+}
+
+WRITE8_MEMBER( pc1512_state::iow0_w )
+{
+ m_dreq0 = 0;
+ m_dmac->dreq0_w(m_dreq0);
+}
+
+WRITE8_MEMBER( pc1512_state::iow1_w )
+{
+ m_bus->dack_w(1, data);
+}
+
+WRITE8_MEMBER( pc1512_state::iow2_w )
+{
+ if (m_nden)
+ upd765_dack_w(m_fdc, 0, data);
+ else
+ m_bus->dack_w(2, data);
+}
+
+WRITE8_MEMBER( pc1512_state::iow3_w )
+{
+ m_bus->dack_w(3, data);
+}
+
+WRITE_LINE_MEMBER( pc1512_state::dack0_w )
+{
+ if (!state) m_dma_channel = 0;
+}
+
+WRITE_LINE_MEMBER( pc1512_state::dack1_w )
+{
+ if (!state) m_dma_channel = 1;
+}
+
+WRITE_LINE_MEMBER( pc1512_state::dack2_w )
+{
+ if (!state) m_dma_channel = 2;
+}
+
+WRITE_LINE_MEMBER( pc1512_state::dack3_w )
+{
+ if (!state) m_dma_channel = 3;
+}
+
+static I8237_INTERFACE( dmac_intf )
+{
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, hrq_w),
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, eop_w),
+ DEVCB_DRIVER_MEMBER(pc1512_state, memr_r),
+ DEVCB_DRIVER_MEMBER(pc1512_state, memw_w),
+ { DEVCB_NULL,
+ DEVCB_DRIVER_MEMBER(pc1512_state, ior1_r),
+ DEVCB_DRIVER_MEMBER(pc1512_state, ior2_r),
+ DEVCB_DRIVER_MEMBER(pc1512_state, ior3_r) },
+ { DEVCB_DRIVER_MEMBER(pc1512_state, iow0_w),
+ DEVCB_DRIVER_MEMBER(pc1512_state, iow1_w),
+ DEVCB_DRIVER_MEMBER(pc1512_state, iow2_w),
+ DEVCB_DRIVER_MEMBER(pc1512_state, iow3_w) },
+ { DEVCB_DRIVER_LINE_MEMBER(pc1512_state, dack0_w),
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, dack1_w),
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, dack2_w),
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, dack3_w) }
+};
+
+
+//-------------------------------------------------
+// pic8259_interface pic_intf
+//-------------------------------------------------
+
+static IRQ_CALLBACK( pc1512_irq_callback )
+{
+ pc1512_state *state = device->machine().driver_data<pc1512_state>();
+
+ return pic8259_acknowledge(state->m_pic);
+}
+
+static const struct pic8259_interface pic_intf =
+{
+ DEVCB_CPU_INPUT_LINE(I8086_TAG, INPUT_LINE_IRQ0),
+ DEVCB_LINE_VCC,
+ DEVCB_NULL
+};
+
+
+//-------------------------------------------------
+// pit8253_config pit_intf
+//-------------------------------------------------
+
+void pc1512_state::update_speaker()
+{
+ speaker_level_w(m_speaker, m_speaker_drive & m_pit2);
+}
+
+WRITE_LINE_MEMBER( pc1512_state::pit1_w )
+{
+ if (!m_pit1 && state && !m_dreq0)
+ {
+ m_dreq0 = 1;
+ m_dmac->dreq0_w(m_dreq0);
+ }
+
+ m_pit1 = state;
+}
+
+WRITE_LINE_MEMBER( pc1512_state::pit2_w )
+{
+ m_pit2 = state;
+ update_speaker();
+}
+
+static const struct pit8253_config pit_intf =
+{
+ {
+ {
+ XTAL_28_63636MHz/24,
+ DEVCB_LINE_VCC,
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir0_w)
+ }, {
+ XTAL_28_63636MHz/24,
+ DEVCB_LINE_VCC,
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, pit1_w)
+ }, {
+ XTAL_28_63636MHz/24,
+ DEVCB_NULL,
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, pit2_w)
+ }
+ }
+};
+
+
+//-------------------------------------------------
+// mc146818_interface rtc_intf
+//-------------------------------------------------
+
+static const struct mc146818_interface rtc_intf =
+{
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir2_w)
+};
+
+
+//-------------------------------------------------
+// upd765_interface fdc_intf
+//-------------------------------------------------
+
+void pc1512_state::update_fdc_int()
+{
+ if (m_nden)
+ pic8259_ir6_w(m_pic, m_dint);
+ else
+ pic8259_ir6_w(m_pic, CLEAR_LINE);
+}
+
+void pc1512_state::update_fdc_drq()
+{
+ if (m_nden)
+ m_dmac->dreq2_w(m_ddrq);
+ else
+ m_dmac->dreq2_w(0);
+}
+
+static const floppy_interface floppy_intf =
+{
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ FLOPPY_STANDARD_5_25_DSDD,
+ LEGACY_FLOPPY_OPTIONS_NAME(pc),
+ "floppy_5_25",
+ NULL
+};
+
+WRITE_LINE_MEMBER( pc1512_state::fdc_int_w )
+{
+ m_dint = state;
+ update_fdc_int();
+}
+
+WRITE_LINE_MEMBER( pc1512_state::fdc_drq_w )
+{
+ m_ddrq = state;
+ update_fdc_drq();
+}
+
+static UPD765_GET_IMAGE( pc1512_fdc_get_image )
+{
+ pc1512_state *state = device->machine().driver_data<pc1512_state>();
+
+ if (BIT(state->m_fdc_dsr, 0))
+ return state->m_floppy1;
+ else
+ return state->m_floppy0;
+}
+
+static const upd765_interface fdc_intf =
+{
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, fdc_int_w),
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, fdc_drq_w),
+ pc1512_fdc_get_image,
+ UPD765_RDY_PIN_NOT_CONNECTED,
+ { FLOPPY_0, FLOPPY_1, NULL, NULL }
+};
+
+
+//-------------------------------------------------
+// ins8250_interface uart_intf
+//-------------------------------------------------
+
+static const ins8250_interface uart_intf =
+{
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir4_w),
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+
+//-------------------------------------------------
+// centronics_interface centronics_intf
+//-------------------------------------------------
+
+void pc1512_state::update_ack()
+{
+ if (m_ack_int_enable)
+ pic8259_ir7_w(m_pic, m_ack);
+ else
+ pic8259_ir7_w(m_pic, CLEAR_LINE);
+}
+
+WRITE_LINE_MEMBER( pc1512_state::ack_w )
+{
+ m_ack = state;
+ update_ack();
+}
+
+static const centronics_interface centronics_intf =
+{
+ DEVCB_DRIVER_LINE_MEMBER(pc1512_state, ack_w),
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+
+//-------------------------------------------------
+// isa8bus_interface isabus_intf
+//-------------------------------------------------
+
+static SLOT_INTERFACE_START( pc1512_isa8_cards )
+ SLOT_INTERFACE("wdxt_gen", WDXT_GEN)
+SLOT_INTERFACE_END
+
+static const isa8bus_interface isabus_intf =
+{
+ // interrupts
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir2_w),
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir3_w),
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir4_w),
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir5_w),
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir6_w),
+ DEVCB_DEVICE_LINE(I8259A2_TAG, pic8259_ir7_w),
+
+ // dma request
+ DEVCB_DEVICE_LINE_MEMBER(I8237A5_TAG, am9517a_device, dreq1_w),
+ DEVCB_DEVICE_LINE_MEMBER(I8237A5_TAG, am9517a_device, dreq2_w),
+ DEVCB_DEVICE_LINE_MEMBER(I8237A5_TAG, am9517a_device, dreq3_w)
+};
+
+
+
+//**************************************************************************
+// MACHINE INITIALIZATION
+//**************************************************************************
+
+//-------------------------------------------------
+// MACHINE_START( pc1512 )
+//-------------------------------------------------
+
+void pc1512_state::machine_start()
+{
+ // register CPU IRQ callback
+ device_set_irq_callback(m_maincpu, pc1512_irq_callback);
+
+ // set RAM size
+ size_t ram_size = m_ram->size();
+
+ if (ram_size < 640 * 1024)
+ {
+ address_space *program = m_maincpu->memory().space(AS_PROGRAM);
+ program->unmap_readwrite(ram_size, 0x9ffff);
+ }
+
+ // state saving
+ save_item(NAME(m_pit1));
+ save_item(NAME(m_pit2));
+ save_item(NAME(m_status1));
+ save_item(NAME(m_status2));
+ save_item(NAME(m_port61));
+ save_item(NAME(m_nmi_enable));
+ save_item(NAME(m_kbd));
+ save_item(NAME(m_kb_bits));
+ save_item(NAME(m_kbclk));
+ save_item(NAME(m_kbdata));
+ save_item(NAME(m_mouse_x));
+ save_item(NAME(m_mouse_y));
+ save_item(NAME(m_dma_page));
+ save_item(NAME(m_dma_channel));
+ save_item(NAME(m_dreq0));
+ save_item(NAME(m_nden));
+ save_item(NAME(m_dint));
+ save_item(NAME(m_ddrq));
+ save_item(NAME(m_fdc_dsr));
+ save_item(NAME(m_neop));
+ save_item(NAME(m_ack_int_enable));
+ save_item(NAME(m_ack));
+ save_item(NAME(m_printer_data));
+ save_item(NAME(m_printer_control));
+ save_item(NAME(m_toggle));
+ save_item(NAME(m_lpen));
+ save_item(NAME(m_blink));
+ save_item(NAME(m_cursor));
+ save_item(NAME(m_blink_ctr));
+ save_item(NAME(m_vdu_mode));
+ save_item(NAME(m_vdu_color));
+ save_item(NAME(m_vdu_plane));
+ save_item(NAME(m_vdu_rdsel));
+ save_item(NAME(m_vdu_border));
+ save_item(NAME(m_speaker_drive));
+}
+
+
+//-------------------------------------------------
+// MACHINE_RESET( pc1512 )
+//-------------------------------------------------
+
+void pc1512_state::machine_reset()
+{
+ m_nmi_enable = 0;
+ m_toggle = 0;
+ m_kb_bits = 0;
+
+ set_fdc_dsr(0);
+
+ m_lpen = 0;
+ m_blink = 0;
+ m_cursor = 0;
+ m_blink_ctr = 0;
+ m_vdu_mode = 0;
+ m_vdu_color = 0;
+ m_vdu_rdsel = 0;
+ m_vdu_plane = 0x0f;
+ m_vdu_border = 0;
+
+ m_kb->clock_w(0);
+}
+
+
+//-------------------------------------------------
+// MACHINE_START( pc1640 )
+//-------------------------------------------------
+
+void pc1640_state::machine_start()
+{
+ // register CPU IRQ callback
+ device_set_irq_callback(m_maincpu, pc1512_irq_callback);
+
+ // state saving
+ save_item(NAME(m_pit1));
+ save_item(NAME(m_pit2));
+ save_item(NAME(m_status1));
+ save_item(NAME(m_status2));
+ save_item(NAME(m_port61));
+ save_item(NAME(m_nmi_enable));
+ save_item(NAME(m_kbd));
+ save_item(NAME(m_kb_bits));
+ save_item(NAME(m_kbclk));
+ save_item(NAME(m_kbdata));
+ save_item(NAME(m_mouse_x));
+ save_item(NAME(m_mouse_y));
+ save_item(NAME(m_dma_page));
+ save_item(NAME(m_dma_channel));
+ save_item(NAME(m_dreq0));
+ save_item(NAME(m_nden));
+ save_item(NAME(m_dint));
+ save_item(NAME(m_ddrq));
+ save_item(NAME(m_fdc_dsr));
+ save_item(NAME(m_neop));
+ save_item(NAME(m_ack_int_enable));
+ save_item(NAME(m_ack));
+ save_item(NAME(m_printer_data));
+ save_item(NAME(m_printer_control));
+ save_item(NAME(m_speaker_drive));
+}
+
+
+//-------------------------------------------------
+// MACHINE_RESET( pc1640 )
+//-------------------------------------------------
+
+void pc1640_state::machine_reset()
+{
+ m_nmi_enable = 0;
+ m_kb_bits = 0;
+
+ set_fdc_dsr(0);
+
+ m_kb->clock_w(0);
+}
+
+
+
+//**************************************************************************
+// MACHINE DRIVERS
+//**************************************************************************
+
+//-------------------------------------------------
+// MACHINE_CONFIG( pc1512 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_START( pc1512, pc1512_state )
+ MCFG_CPU_ADD(I8086_TAG, I8086, XTAL_24MHz/3)
+ MCFG_CPU_PROGRAM_MAP(pc1512_mem)
+ MCFG_CPU_IO_MAP(pc1512_io)
+
+ // video
+ MCFG_FRAGMENT_ADD(pc1512_video)
+
+ // sound
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
+
+ // devices
+ MCFG_PC1512_KEYBOARD_ADD(kb_intf)
+ MCFG_I8237_ADD(I8237A5_TAG, XTAL_24MHz/6, dmac_intf)
+ MCFG_PIC8259_ADD(I8259A2_TAG, pic_intf)
+ MCFG_PIT8253_ADD(I8253_TAG, pit_intf)
+ MCFG_MC146818_IRQ_ADD(MC146818_TAG, MC146818_STANDARD, rtc_intf)
+ MCFG_UPD765A_ADD(UPD765AC2_TAG, fdc_intf)
+ MCFG_INS8250_ADD(INS8250_TAG, uart_intf, XTAL_1_8432MHz)
+ MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, centronics_intf)
+ MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(floppy_intf)
+
+ // ISA8 bus
+ MCFG_ISA8_BUS_ADD(ISA_BUS_TAG, I8086_TAG, isabus_intf)
+ MCFG_ISA8_SLOT_ADD(ISA_BUS_TAG, "isa1", pc1512_isa8_cards, NULL, NULL, false)
+ MCFG_ISA8_SLOT_ADD(ISA_BUS_TAG, "isa2", pc1512_isa8_cards, NULL, NULL, false)
+ MCFG_ISA8_SLOT_ADD(ISA_BUS_TAG, "isa3", pc1512_isa8_cards, NULL, NULL, false)
+
+ // internal ram
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("512K")
+ MCFG_RAM_EXTRA_OPTIONS("544K,576K,608K,640K")
+
+ // software list
+ MCFG_SOFTWARE_LIST_ADD("flop_list", "pc1512")
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG( pc1640 )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_START( pc1640, pc1640_state )
+ MCFG_CPU_ADD(I8086_TAG, I8086, XTAL_24MHz/3)
+ MCFG_CPU_PROGRAM_MAP(pc1640_mem)
+ MCFG_CPU_IO_MAP(pc1640_io)
+
+ // video
+ MCFG_FRAGMENT_ADD(pc1640_video)
+
+ // sound
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
+
+ // devices
+ MCFG_PC1512_KEYBOARD_ADD(kb_intf)
+ MCFG_I8237_ADD(I8237A5_TAG, XTAL_24MHz/6, dmac_intf)
+ MCFG_PIC8259_ADD(I8259A2_TAG, pic_intf)
+ MCFG_PIT8253_ADD(I8253_TAG, pit_intf)
+ MCFG_MC146818_IRQ_ADD(MC146818_TAG, MC146818_STANDARD, rtc_intf)
+ MCFG_UPD765A_ADD(UPD765AC2_TAG, fdc_intf)
+ MCFG_INS8250_ADD(INS8250_TAG, uart_intf, XTAL_1_8432MHz)
+ MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, centronics_intf)
+ MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(floppy_intf)
+
+ // ISA8 bus
+ MCFG_ISA8_BUS_ADD(ISA_BUS_TAG, I8086_TAG, isabus_intf)
+ MCFG_ISA8_SLOT_ADD(ISA_BUS_TAG, "isa1", pc1512_isa8_cards, "wdxt_gen", NULL, false)
+ MCFG_ISA8_SLOT_ADD(ISA_BUS_TAG, "isa2", pc1512_isa8_cards, NULL, NULL, false)
+ MCFG_ISA8_SLOT_ADD(ISA_BUS_TAG, "isa3", pc1512_isa8_cards, NULL, NULL, false)
+
+ // internal ram
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("640K")
+
+ // software list
+ MCFG_SOFTWARE_LIST_ADD("flop_list", "pc1640")
+MACHINE_CONFIG_END
+
+
+
+//**************************************************************************
+// ROMS
+//**************************************************************************
+
+//-------------------------------------------------
+// ROM( pc1512 )
+//-------------------------------------------------
+
+ROM_START( pc1512 )
+ ROM_REGION16_LE( 0x4000, I8086_TAG, 0)
+ ROM_LOAD16_BYTE( "40044.ic132", 0x0000, 0x2000, CRC(f72f1582) SHA1(7781d4717917262805d514b331ba113b1e05a247) )
+ ROM_LOAD16_BYTE( "40043.ic129", 0x0001, 0x2000, CRC(668fcc94) SHA1(74002f5cc542df442eec9e2e7a18db3598d8c482) )
+
+ ROM_REGION( 0x2000, AMS40041_TAG, 0 )
+ ROM_LOAD( "40045.ic127", 0x0000, 0x2000, CRC(dd5e030f) SHA1(7d858bbb2e8d6143aa67ab712edf5f753c2788a7) )
+ROM_END
+
+
+//-------------------------------------------------
+// ROM( pc1512v2 )
+//-------------------------------------------------
+
+ROM_START( pc1512v2 )
+ ROM_REGION16_LE( 0x4000, I8086_TAG, 0)
+ ROM_LOAD16_BYTE( "40044v2.ic132", 0x0000, 0x2000, CRC(1aec54fa) SHA1(b12fd73cfc35a240ed6da4dcc4b6c9910be611e0) )
+ ROM_LOAD16_BYTE( "40043v2.ic129", 0x0001, 0x2000, CRC(d2d4d2de) SHA1(c376fd1ad23025081ae16c7949e88eea7f56e1bb) )
+
+ ROM_REGION( 0x2000, AMS40041_TAG, 0 )
+ ROM_LOAD( "40078.ic127", 0x0000, 0x2000, CRC(ae9c0d04) SHA1(bc8dc4dcedeea5bc1c04986b1f105ad93cb2ebcd) )
+ROM_END
+
+
+//-------------------------------------------------
+// ROM( pc1512v3 )
+//-------------------------------------------------
+
+ROM_START( pc1512v3 )
+ ROM_REGION16_LE( 0x4000, I8086_TAG, 0)
+ ROM_LOAD16_BYTE( "40044-2.ic132", 0x0000, 0x2000, CRC(ea527e6e) SHA1(b77fa44767a71a0b321a88bb0a394f1125b7c220) )
+ ROM_LOAD16_BYTE( "40043-2.ic129", 0x0001, 0x2000, CRC(532c3854) SHA1(18a17b710f9eb079d9d7216d07807030f904ceda) )
+
+ ROM_REGION( 0x2000, AMS40041_TAG, 0 )
+ ROM_LOAD( "40078.ic127", 0x0000, 0x2000, CRC(ae9c0d04) SHA1(bc8dc4dcedeea5bc1c04986b1f105ad93cb2ebcd) )
+ROM_END
+
+
+//-------------------------------------------------
+// ROM( pc1640 )
+//-------------------------------------------------
+
+ROM_START( pc1640 )
+ ROM_REGION16_LE( 0x4000, I8086_TAG, 0)
+ ROM_SYSTEM_BIOS( 0, "8809", "Week 9/1988" )
+ ROMX_LOAD( "40044-1 8809.ic132", 0x0000, 0x2000, CRC(f1c074f3) SHA1(a055ea7e933d137623c22fe24004e870653c7952), ROM_SKIP(1) | ROM_BIOS(1) ) // 8809 B
+ ROMX_LOAD( "40043-1 8809.ic129", 0x0001, 0x2000, CRC(e40a1513) SHA1(447eff2057e682e51b1c7593cb6fad0e53879fa8), ROM_SKIP(1) | ROM_BIOS(1) ) // 8809 B
+ ROM_SYSTEM_BIOS( 1, "8738", "Week 38/1987" )
+ ROMX_LOAD( "40044 8738.ic132", 0x0000, 0x2000, CRC(43832ea7) SHA1(eea4a8836f966940a88c88de6c5cc14852545f7d), ROM_SKIP(1) | ROM_BIOS(2) ) // 8738 D F
+ ROMX_LOAD( "40043 8738.ic129", 0x0001, 0x2000, CRC(768498f9) SHA1(ac48cb892417d7998d604f3b79756140c554f476), ROM_SKIP(1) | ROM_BIOS(2) ) // 8738 D F
+ ROM_SYSTEM_BIOS( 2, "88xx", "Week ?/1988" )
+ ROMX_LOAD( "40044 88xx.ic132", 0x0000, 0x2000, CRC(6090f782) SHA1(e21ae524d5b4d00696d293dbd4fe4d7bca22e277), ROM_SKIP(1) | ROM_BIOS(3) )
+ ROMX_LOAD( "40043 88xx.ic129", 0x0001, 0x2000, CRC(9219d0aa) SHA1(dde1a46c8f83e413d7070f1356fc91b9f595a8b6), ROM_SKIP(1) | ROM_BIOS(3) )
+
+ ROM_REGION16_LE( 0x8000, "iga", 0)
+ ROM_LOAD( "40100.ic913", 0x0000, 0x8000, CRC(d2d1f1ae) SHA1(98302006ee38a17c09bd75504cc18c0649174e33) ) // 8736 E
+ROM_END
+
+
+
+//**************************************************************************
+// SYSTEM DRIVERS
+//**************************************************************************
+
+// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS
+COMP( 1986, pc1512, 0, 0, pc1512, pc1512, driver_device, 0, "Amstrad plc", "PC1512 (V1)", GAME_SUPPORTS_SAVE )
+COMP( 1987, pc1512v2, pc1512, 0, pc1512, pc1512, driver_device, 0, "Amstrad plc", "PC1512 (V2)", GAME_SUPPORTS_SAVE )
+COMP( 1989, pc1512v3, pc1512, 0, pc1512, pc1512, driver_device, 0, "Amstrad plc", "PC1512 (V3)", GAME_NOT_WORKING )
+COMP( 1987, pc1640, 0, 0, pc1640, pc1640, driver_device, 0, "Amstrad plc", "PC1640", GAME_NOT_WORKING )