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Diffstat (limited to 'src/mame/drivers/amstr_pc.c')
-rw-r--r--src/mame/drivers/amstr_pc.c659
1 files changed, 659 insertions, 0 deletions
diff --git a/src/mame/drivers/amstr_pc.c b/src/mame/drivers/amstr_pc.c
new file mode 100644
index 00000000000..8ba877cd182
--- /dev/null
+++ b/src/mame/drivers/amstr_pc.c
@@ -0,0 +1,659 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+/***************************************************************************
+
+ drivers/amstr_pc.c
+
+ Driver file for Amstrad PC1512 and related machines.
+
+ PC-XT memory map
+
+ 00000-9FFFF RAM
+ A0000-AFFFF NOP or videoram EGA/VGA
+ B0000-B7FFF videoram MDA, page #0
+ B8000-BFFFF videoram CGA and/or MDA page #1, T1T mapped RAM
+ C0000-C7FFF NOP or ROM EGA/VGA
+ C8000-C9FFF ROM XT HDC #1
+ CA000-CBFFF ROM XT HDC #2
+ D0000-EFFFF NOP or 'adapter RAM'
+ F0000-FDFFF NOP or ROM Basic + other Extensions
+ FE000-FFFFF ROM
+
+Amstrad PC1640
+==============
+
+More information can be found at http://www.seasip.info/AmstradXT/1640tech/index.html
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/nec/nec.h"
+#include "cpu/i86/i86.h"
+
+#include "machine/mc146818.h"
+#include "includes/genpc.h"
+#include "bus/isa/isa.h"
+#include "bus/isa/isa_cards.h"
+
+#include "machine/pckeybrd.h"
+#include "machine/pc_lpt.h"
+
+class amstrad_pc_state : public driver_device
+{
+public:
+ amstrad_pc_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_mb(*this, "mb"),
+ m_keyboard(*this, "pc_keyboard"),
+ m_lpt1(*this, "lpt_1"),
+ m_lpt2(*this, "lpt_2")
+ { m_mouse.x =0; m_mouse.y=0;}
+
+ required_device<cpu_device> m_maincpu;
+ required_device<pc_noppi_mb_device> m_mb;
+ required_device<pc_keyboard_device> m_keyboard;
+ required_device<pc_lpt_device> m_lpt1;
+ required_device<pc_lpt_device> m_lpt2;
+
+ DECLARE_READ8_MEMBER( pc1640_port60_r );
+ DECLARE_WRITE8_MEMBER( pc1640_port60_w );
+
+ DECLARE_READ8_MEMBER( pc1640_mouse_x_r );
+ DECLARE_READ8_MEMBER( pc1640_mouse_y_r );
+ DECLARE_WRITE8_MEMBER( pc1640_mouse_x_w );
+ DECLARE_WRITE8_MEMBER( pc1640_mouse_y_w );
+
+ DECLARE_READ8_MEMBER( pc200_port378_r );
+ DECLARE_READ8_MEMBER( pc200_port278_r );
+ DECLARE_READ8_MEMBER( pc1640_port378_r );
+ DECLARE_READ8_MEMBER( pc1640_port3d0_r );
+ DECLARE_READ8_MEMBER( pc1640_port4278_r );
+ DECLARE_READ8_MEMBER( pc1640_port278_r );
+
+ DECLARE_DRIVER_INIT(pc1640);
+
+ struct {
+ UINT8 x,y; //byte clipping needed
+ } m_mouse;
+
+ // 64 system status register?
+ UINT8 m_port60;
+ UINT8 m_port61;
+ UINT8 m_port62;
+ UINT8 m_port65;
+
+ int m_dipstate;
+};
+
+static ADDRESS_MAP_START( ppc512_map, AS_PROGRAM, 16, amstrad_pc_state )
+ AM_RANGE(0x00000, 0x7ffff) AM_RAMBANK("bank10")
+ AM_RANGE(0x80000, 0xbffff) AM_NOP
+ AM_RANGE(0xc0000, 0xc7fff) AM_ROM
+ AM_RANGE(0xc8000, 0xcffff) AM_ROM
+ AM_RANGE(0xd0000, 0xeffff) AM_NOP
+ AM_RANGE(0xf0000, 0xfffff) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( ppc640_map, AS_PROGRAM, 16, amstrad_pc_state )
+ AM_RANGE(0x00000, 0x9ffff) AM_RAMBANK("bank10")
+ AM_RANGE(0xa0000, 0xbffff) AM_NOP
+ AM_RANGE(0xc0000, 0xc7fff) AM_ROM
+ AM_RANGE(0xc8000, 0xcffff) AM_ROM
+ AM_RANGE(0xd0000, 0xeffff) AM_NOP
+ AM_RANGE(0xf0000, 0xfffff) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(ppc512_io, AS_IO, 16, amstrad_pc_state )
+ AM_RANGE(0x0060, 0x0065) AM_READWRITE8(pc1640_port60_r, pc1640_port60_w, 0xffff)
+ AM_RANGE(0x0070, 0x0071) AM_DEVREADWRITE8("rtc", mc146818_device, read, write, 0xffff)
+ AM_RANGE(0x0078, 0x0079) AM_READWRITE8(pc1640_mouse_x_r, pc1640_mouse_x_w, 0xffff)
+ AM_RANGE(0x007a, 0x007b) AM_READWRITE8(pc1640_mouse_y_r, pc1640_mouse_y_w, 0xffff)
+ AM_RANGE(0x0200, 0x0207) AM_DEVREADWRITE8("pc_joy", pc_joy_device, joy_port_r, joy_port_w, 0xffff)
+ AM_RANGE(0x0278, 0x027b) AM_READ8(pc200_port278_r, 0xffff) AM_DEVWRITE8("lpt_2", pc_lpt_device, write, 0x00ff)
+ AM_RANGE(0x0378, 0x037b) AM_READ8(pc200_port378_r, 0xffff) AM_DEVWRITE8("lpt_1", pc_lpt_device, write, 0x00ff)
+ AM_RANGE(0x03bc, 0x03bf) AM_DEVREADWRITE8("lpt_0", pc_lpt_device, read, write, 0x00ff)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(pc200_io, AS_IO, 16, amstrad_pc_state )
+ AM_RANGE(0x0060, 0x0065) AM_READWRITE8(pc1640_port60_r, pc1640_port60_w, 0xffff)
+ AM_RANGE(0x0078, 0x0079) AM_READWRITE8(pc1640_mouse_x_r, pc1640_mouse_x_w, 0xffff)
+ AM_RANGE(0x007a, 0x007b) AM_READWRITE8(pc1640_mouse_y_r, pc1640_mouse_y_w, 0xffff)
+ AM_RANGE(0x0200, 0x0207) AM_DEVREADWRITE8("pc_joy", pc_joy_device, joy_port_r, joy_port_w, 0xffff)
+ AM_RANGE(0x0278, 0x027b) AM_READ8(pc200_port278_r, 0xffff) AM_DEVWRITE8("lpt_2", pc_lpt_device, write, 0x00ff)
+ AM_RANGE(0x0378, 0x037b) AM_READ8(pc200_port378_r, 0xffff) AM_DEVWRITE8("lpt_1", pc_lpt_device, write, 0x00ff)
+ AM_RANGE(0x03bc, 0x03bf) AM_DEVREADWRITE8("lpt_0", pc_lpt_device, read, write, 0x00ff)
+ADDRESS_MAP_END
+
+
+/* pc20 (v2)
+ fc078
+ fc102 color/mono selection
+ fc166
+ fc1b4
+ fd841 (output something)
+ ff17c (output something, read monitor type inputs)
+ fc212
+ fc26c
+ fc2df
+ fc3fe
+ fc0f4
+ fc432
+ fc49f
+ fc514
+ fc566
+ fc5db
+ fc622 in 3de
+
+port 0379 read
+port 03de write/read
+ */
+
+/* pc1512 (v1)
+ fc1b5
+ fc1f1
+ fc264
+ fc310
+ fc319
+ fc385
+ fc436
+ fc459
+ fc4cb
+ fc557
+ fc591
+ fc624
+ fc768
+ fc818
+ fc87d display amstrad ..
+ fca17 keyboard check
+ fca69
+ fd680
+ fd7f9
+ fca7b !keyboard interrupt routine for this check
+ */
+
+
+/* pc1640 (v3)
+ bios power up self test
+ important addresses
+
+ fc0c9
+ fc0f2
+ fc12e
+ fc193
+ fc20e
+ fc2c1
+ fc2d4
+
+
+ fc375
+ fc3ba
+ fc3e1
+ fc412
+ fc43c
+ fc47d
+ fc48f
+ fc51f
+ fc5a2
+ fc5dd mouse
+
+ fc1c0
+ fc5fa
+ the following when language selection not 0 (test for presence of 0x80000..0x9ffff ram)
+ fc60e
+ fc667
+ fc678
+ fc6e5
+ fc72e
+ fc78f
+ fc7cb ; coprocessor related
+ fc834
+ feda6 no problem with disk inserted
+
+ fca2a
+
+ cmos ram 28 0 amstrad pc1512 integrated cga
+ cmos ram 23 dipswitches?
+*/
+
+/* test sequence in bios
+ write 00 to 65
+ write 30 to 61
+ read 62 and (0x10)
+ write 34 to 61
+ read 62 and (0x0f)
+ return or of the 2 62 reads
+
+ allows set of the original ibm pc "dipswitches"!!!!
+
+ 66 write gives reset?
+*/
+
+/* mouse x counter at 0x78 (read- writable)
+ mouse y counter at 0x7a (read- writable)
+
+ mouse button 1,2 keys
+ joystick (4 directions, 2 buttons) keys
+ these get value from cmos ram
+ 74 15 00 enter
+ 70 17 00 forward del
+ 77 1b 00 joystick button 1
+ 78 19 00 joystick button 2
+
+
+ 79 00 4d right
+ 7a 00 4b left
+ 7b 00 50 down
+ 7c 00 48 up
+
+ 7e 00 01 mouse button left
+ 7d 01 01 mouse button right
+*/
+
+DRIVER_INIT_MEMBER(amstrad_pc_state,pc1640)
+{
+ address_space &io_space = m_maincpu->space( AS_IO );
+
+ io_space.install_read_handler(0x278, 0x27b, read8_delegate(FUNC(amstrad_pc_state::pc1640_port278_r),this), 0xffff);
+ io_space.install_read_handler(0x4278, 0x427b, read8_delegate(FUNC(amstrad_pc_state::pc1640_port4278_r),this), 0xffff);
+}
+
+WRITE8_MEMBER( amstrad_pc_state::pc1640_port60_w )
+{
+ switch (offset) {
+ case 1:
+ m_port61=data;
+ if (data==0x30) m_port62=(m_port65&0x10)>>4;
+ else if (data==0x34) m_port62=m_port65&0xf;
+ m_mb->m_pit8253->write_gate2(BIT(data, 0));
+ m_mb->pc_speaker_set_spkrdata( data & 0x02 );
+ m_keyboard->enable(data&0x40);
+ if(data & 0x80)
+ m_mb->m_pic8259->ir1_w(0);
+
+ break;
+ case 4:
+ if (data&0x80) {
+ m_port60=data^0x8d;
+ } else {
+ m_port60=data;
+ }
+ break;
+ case 5:
+ // stores the configuration data for port 62 configuration dipswitch emulation
+ m_port65=data;
+ break;
+ }
+
+ logerror("pc1640 write %.2x %.2x\n",offset,data);
+}
+
+
+READ8_MEMBER( amstrad_pc_state::pc1640_port60_r )
+{
+ int data=0;
+ switch (offset) {
+ case 0:
+ if (m_port61&0x80)
+ data=m_port60;
+ else
+ data = m_keyboard->read(space, 0);
+ break;
+
+ case 1:
+ data = m_port61;
+ break;
+
+ case 2:
+ data = m_port62;
+ if (m_mb->m_pit_out2)
+ data |= 0x20;
+ break;
+ }
+ return data;
+}
+
+READ8_MEMBER( amstrad_pc_state::pc200_port378_r )
+{
+ UINT8 data = m_lpt1->read(space, offset);
+
+ if (offset == 1)
+ data = (data & ~7) | (ioport("DSW0")->read() & 7);
+ if (offset == 2)
+ data = (data & ~0xe0) | (ioport("DSW0")->read() & 0xc0);
+
+ return data;
+}
+
+READ8_MEMBER( amstrad_pc_state::pc200_port278_r )
+{
+ UINT8 data = m_lpt2->read(space, offset);
+
+ if (offset == 1)
+ data = (data & ~7) | (ioport("DSW0")->read() & 7);
+ if (offset == 2)
+ data = (data & ~0xe0) | (ioport("DSW0")->read() & 0xc0);
+
+ return data;
+}
+
+
+READ8_MEMBER( amstrad_pc_state::pc1640_port378_r )
+{
+ UINT8 data = m_lpt1->read(space, offset);
+
+ if (offset == 1)
+ data=(data & ~7) | (ioport("DSW0")->read() & 7);
+ if (offset == 2)
+ {
+ switch (m_dipstate)
+ {
+ case 0:
+ data = (data&~0xe0) | (ioport("DSW0")->read() & 0xe0);
+ break;
+ case 1:
+ data = (data&~0xe0) | ((ioport("DSW0")->read() & 0xe000)>>8);
+ break;
+ case 2:
+ data = (data&~0xe0) | ((ioport("DSW0")->read() & 0xe00)>>4);
+ break;
+
+ }
+ }
+ return data;
+}
+
+READ8_MEMBER( amstrad_pc_state::pc1640_port3d0_r )
+{
+ if (offset==0xa) m_dipstate=0;
+ return space.read_byte(0x3d0+offset);
+}
+
+READ8_MEMBER( amstrad_pc_state::pc1640_port4278_r )
+{
+ if (offset==2) m_dipstate=1;
+ // read parallelport
+ return 0;
+}
+
+READ8_MEMBER( amstrad_pc_state::pc1640_port278_r )
+{
+ if ((offset==2)||(offset==0)) m_dipstate=2;
+ // read parallelport
+ return 0;
+}
+
+READ8_MEMBER( amstrad_pc_state::pc1640_mouse_x_r )
+{
+ return m_mouse.x - ioport("pc_mouse_x")->read();
+}
+
+READ8_MEMBER( amstrad_pc_state::pc1640_mouse_y_r )
+{
+ return m_mouse.y - ioport("pc_mouse_y")->read();
+}
+
+WRITE8_MEMBER( amstrad_pc_state::pc1640_mouse_x_w )
+{
+ m_mouse.x = data + ioport("pc_mouse_x")->read();
+}
+
+WRITE8_MEMBER( amstrad_pc_state::pc1640_mouse_y_w )
+{
+ m_mouse.y = data + ioport("pc_mouse_y")->read();
+}
+
+static INPUT_PORTS_START( pc200 )
+ PORT_START("DSW0") /* IN1 */
+ PORT_DIPNAME( 0x07, 0x07, "Name/Language")
+ PORT_DIPSETTING( 0x00, "English/less checks" )
+ PORT_DIPSETTING( 0x01, DEF_STR( Italian ) ) //prego attendere
+ PORT_DIPSETTING( 0x02, "V.g. v\xC3\xA4nta" )
+ PORT_DIPSETTING( 0x03, "Vent et cjeblik" ) // seldom c
+ PORT_DIPSETTING( 0x04, DEF_STR( Spanish ) ) //Por favor
+ PORT_DIPSETTING( 0x05, DEF_STR( French ) ) //patientez
+ PORT_DIPSETTING( 0x06, DEF_STR( German ) ) // bitte warten
+ PORT_DIPSETTING( 0x07, DEF_STR( English ) ) // please wait
+ PORT_DIPNAME( 0x08, 0x00, "37a 0x40")
+ PORT_DIPSETTING( 0x00, "0x00" )
+ PORT_DIPSETTING( 0x08, "0x08" )
+/* 2008-05 FP: This Dip Switch overlaps the next one.
+Since pc200 is anyway NOT_WORKING, I comment out this one */
+/* PORT_DIPNAME( 0x10, 0x00, "37a 0x80")
+ PORT_DIPSETTING( 0x00, "0x00" )
+ PORT_DIPSETTING( 0x10, "0x10" ) */
+ PORT_DIPNAME( 0x30, 0x00, "Integrated Graphics Adapter")
+ PORT_DIPSETTING( 0x00, "CGA 1" )
+ PORT_DIPSETTING( 0x10, "CGA 2" )
+ PORT_DIPSETTING( 0x20, "external" )
+ PORT_DIPSETTING( 0x30, "MDA" )
+ PORT_DIPNAME( 0xc0, 0x80, "Startup Mode")
+ PORT_DIPSETTING( 0x00, "external Color 80 Columns" )
+ PORT_DIPSETTING( 0x40, "Color 40 Columns" )
+ PORT_DIPSETTING( 0x80, "Color 80 Columns" )
+ PORT_DIPSETTING( 0xc0, DEF_STR( Mono ) )
+
+ PORT_START("DSW1") /* IN2 */
+ PORT_BIT ( 0x80, 0x80, IPT_UNUSED ) // com 1 on motherboard
+ PORT_DIPNAME( 0x40, 0x40, "COM2: enable")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x20, 0x00, "COM3: enable")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x10, 0x00, "COM4: enable")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x08, 0x08, "LPT1: enable")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Yes ) )
+ PORT_BIT ( 0x04, 0x04, IPT_UNUSED ) // lpt 1 on motherboard
+ PORT_DIPNAME( 0x02, 0x00, "LPT3: enable")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x01, 0x00, "Game port enable")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( Yes ) )
+
+ PORT_START("DSW2") /* IN3 */
+ PORT_DIPNAME( 0x08, 0x08, "HDC1 (C800:0 port 320-323)")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x04, 0x04, "HDC2 (CA00:0 port 324-327)")
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Yes ) )
+ PORT_BIT( 0x02, 0x02, IPT_UNUSED ) /* no turbo switch */
+ PORT_BIT( 0x01, 0x01, IPT_UNUSED )
+
+ PORT_INCLUDE( at_keyboard ) /* IN4 - IN11 */
+INPUT_PORTS_END
+
+// static const gfx_layout pc200_charlayout =
+// {
+ // 8, 16, /* 8 x 16 characters */
+ // 2048, /* 2048 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, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
+ // 8*16 /* every char takes 16 bytes */
+// };
+
+// static GFXDECODE_START( pc200 )
+ // GFXDECODE_ENTRY( "gfx1", 0x0000, pc200_charlayout, 3, 1 )
+// GFXDECODE_END
+
+// has it's own mouse
+static MACHINE_CONFIG_FRAGMENT( cfg_com )
+ MCFG_DEVICE_MODIFY("serport0")
+ MCFG_SLOT_DEFAULT_OPTION(NULL)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_START( pc200, amstrad_pc_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", I8086, 8000000)
+ MCFG_CPU_PROGRAM_MAP(ppc640_map)
+ MCFG_CPU_IO_MAP(pc200_io)
+ MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("mb:pic8259", pic8259_device, inta_cb)
+
+ MCFG_PCNOPPI_MOTHERBOARD_ADD("mb", "maincpu")
+
+ MCFG_ISA8_SLOT_ADD("mb:isa", "aga", pc_isa8_cards, "aga_pc200", true)
+ MCFG_ISA8_SLOT_ADD("mb:isa", "fdc", pc_isa8_cards, "fdc_xt", true)
+ MCFG_ISA8_SLOT_ADD("mb:isa", "com", pc_isa8_cards, "com", true)
+ MCFG_SLOT_OPTION_MACHINE_CONFIG("com", cfg_com)
+
+ MCFG_ISA8_SLOT_ADD("mb:isa", "isa1", pc_isa8_cards, NULL, false)
+ MCFG_ISA8_SLOT_ADD("mb:isa", "isa2", pc_isa8_cards, NULL, false)
+
+ /* printer */
+ MCFG_DEVICE_ADD("lpt_0", PC_LPT, 0)
+ MCFG_PC_LPT_IRQ_HANDLER(DEVWRITELINE("mb:pic8259", pic8259_device, ir7_w))
+
+ MCFG_DEVICE_ADD("lpt_1", PC_LPT, 0)
+ MCFG_PC_LPT_IRQ_HANDLER(DEVWRITELINE("mb:pic8259", pic8259_device, ir7_w))
+
+ MCFG_DEVICE_ADD("lpt_2", PC_LPT, 0)
+ MCFG_PC_LPT_IRQ_HANDLER(DEVWRITELINE("mb:pic8259", pic8259_device, ir5_w))
+
+ MCFG_PC_JOY_ADD("pc_joy")
+
+ MCFG_PC_KEYB_ADD("pc_keyboard", DEVWRITELINE("mb:pic8259", pic8259_device, ir1_w))
+
+ /* internal ram */
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("640K")
+MACHINE_CONFIG_END
+
+
+static MACHINE_CONFIG_DERIVED( ppc512, pc200 )
+ MCFG_DEVICE_REMOVE("maincpu")
+
+ MCFG_CPU_ADD("maincpu", V30, 8000000)
+ MCFG_CPU_PROGRAM_MAP(ppc512_map)
+ MCFG_CPU_IO_MAP(ppc512_io)
+ MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("mb:pic8259", pic8259_device, inta_cb)
+
+ MCFG_DEVICE_REMOVE("isa1")
+ MCFG_DEVICE_REMOVE("isa2")
+
+ MCFG_MC146818_ADD( "rtc", XTAL_32_768kHz )
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( ppc640, ppc512 )
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(ppc640_map)
+MACHINE_CONFIG_END
+
+/*
+Sinclair PC200 ROMs (from a v1.2 PC200):
+
+40109.ic159 -- Character set, the same as in the 1.5 PC200. Label:
+
+ AMSTRAD
+ 40109
+ 8827 B
+
+40184.ic132 -- BIOS v1.2.
+40185.ic129 Labels are:
+
+ AMSTRAD AMSTRAD
+ 40184 40185
+ V1.2:5EA8 V1.2:A058
+*/
+ROM_START( pc200 )
+// ROM_REGION(0x100000,"maincpu", 0)
+ ROM_REGION16_LE(0x100000,"maincpu", 0)
+ // special bios at 0xe0000 !?
+ ROM_SYSTEM_BIOS(0, "v15", "v1.5")
+ ROMX_LOAD("40185-2.ic129", 0xfc001, 0x2000, CRC(41302eb8) SHA1(8b4b2afea543b96b45d6a30365281decc15f2932), ROM_SKIP(1) | ROM_BIOS(1)) // v2
+ ROMX_LOAD("40184-2.ic132", 0xfc000, 0x2000, CRC(71b84616) SHA1(4135102a491b25fc659d70b957e07649f3eacf24), ROM_SKIP(1) | ROM_BIOS(1)) // v2
+ ROM_SYSTEM_BIOS(1, "v13", "v1.3")
+ ROMX_LOAD("40185v13.ic129", 0xfc001, 0x2000, CRC(f082f08e) SHA1(b332db419033588a7380bfecdf46104974347341), ROM_SKIP(1) | ROM_BIOS(2))
+ ROMX_LOAD("40184v13.ic132", 0xfc000, 0x2000, CRC(5daf6068) SHA1(93a2ccfb0e29c8f2c98f06c64bb0ea0b3acafb13), ROM_SKIP(1) | ROM_BIOS(2))
+ ROM_SYSTEM_BIOS(2, "v12", "v1.2")
+ ROMX_LOAD("40185.ic129", 0xfc001, 0x2000, CRC(c2b4eeac) SHA1(f11015fadf0c16d86ce2c5047be3e6a4782044f7), ROM_SKIP(1) | ROM_BIOS(3))
+ ROMX_LOAD("40184.ic132", 0xfc000, 0x2000, CRC(b22704a6) SHA1(dadd573db6cd34f339f2f0ae55b07537924c024a), ROM_SKIP(1) | ROM_BIOS(3))
+ // also mapped to f0000, f4000, f8000
+ ROM_REGION( 0x800, "keyboard", 0 )
+ ROM_LOAD( "40112.ic801", 0x000, 0x800, CRC(842a954c) SHA1(93ca6badf20e0215025fe109959eddead8c52f38) )
+ROM_END
+
+
+ROM_START( pc20 )
+// ROM_REGION(0x100000,"maincpu", 0)
+ ROM_REGION16_LE(0x100000,"maincpu", 0)
+
+ // special bios at 0xe0000 !?
+ // This is probably referring to a check for the Amstrad RP5-2 diagnostic
+ // card, which can be plugged into an Amstrad XT for troubleshooting purposes.
+ // - John Elliott
+ ROM_LOAD16_BYTE("pc20v2.0", 0xfc001, 0x2000, CRC(41302eb8) SHA1(8b4b2afea543b96b45d6a30365281decc15f2932)) // v2
+ ROM_LOAD16_BYTE("pc20v2.1", 0xfc000, 0x2000, CRC(71b84616) SHA1(4135102a491b25fc659d70b957e07649f3eacf24)) // v2
+ // also mapped to f0000, f4000, f8000
+ROM_END
+
+
+ROM_START( ppc512 )
+// ROM_REGION(0x100000,"maincpu", 0)
+ ROM_REGION16_LE(0x100000,"maincpu", 0)
+ // special bios at 0xe0000 !?
+ ROM_LOAD16_BYTE("40107.v1", 0xfc000, 0x2000, CRC(4e37e769) SHA1(88be3d3375ec3b0a7041dbcea225b197e50d4bfe)) // v1.9
+ ROM_LOAD16_BYTE("40108.v1", 0xfc001, 0x2000, CRC(4f0302d9) SHA1(e4d69ca98c3b98f3705a2902b16746360043f039)) // v1.9
+ // also mapped to f0000, f4000, f8000
+ ROM_REGION( 0x800, "keyboard", 0 ) // PPC512 / PPC640 / PC200 102-key keyboard
+ ROM_LOAD( "40112.ic801", 0x000, 0x800, CRC(842a954c) SHA1(93ca6badf20e0215025fe109959eddead8c52f38) )
+ROM_END
+
+
+ROM_START( ppc640 )
+// ROM_REGION(0x100000,"maincpu", 0)
+ ROM_REGION16_LE(0x100000,"maincpu", 0)
+ // special bios at 0xe0000 !?
+ ROM_LOAD16_BYTE("40107.v2", 0xfc000, 0x2000, CRC(0785b63e) SHA1(4dbde6b9e9500298bb6241a8daefd85927f1ad28)) // v2.1
+ ROM_LOAD16_BYTE("40108.v2", 0xfc001, 0x2000, CRC(5351cf8c) SHA1(b4dbf11b39378ab4afd2107d3fe54a99fffdedeb)) // v2.1
+ // also mapped to f0000, f4000, f8000
+ ROM_REGION(0x2000,"subcpu", 0)
+ ROM_LOAD("40135.ic192", 0x00000, 0x2000, CRC(75d99199) SHA1(a76d39fda3d5140e1fb9ce70fcddbdfb8f891dc6))
+
+ ROM_REGION( 0x800, "keyboard", 0 ) // PPC512 / PPC640 / PC200 102-key keyboard
+ ROM_LOAD( "40112.ic801", 0x000, 0x800, CRC(842a954c) SHA1(93ca6badf20e0215025fe109959eddead8c52f38) )
+ROM_END
+
+
+ROM_START( pc2086 )
+ ROM_REGION16_LE( 0x100000, "maincpu", 0 )
+ ROM_LOAD( "40186.ic171", 0xc0000, 0x8000, CRC(959f00ba) SHA1(5df1efe4203cd076292a7713bd7ebd1196dca577) )
+ ROM_LOAD16_BYTE( "40179.ic129", 0xfc000, 0x2000, CRC(003605e4) SHA1(b882e97ee81b9ba0e7d969c63da3f2052f23b4b9) )
+ ROM_LOAD16_BYTE( "40180.ic132", 0xfc001, 0x2000, CRC(28ee5e58) SHA1(93e045609466fcec74e2bb72578bb7405281cf7b) )
+
+ ROM_REGION( 0x800, "keyboard", 0 ) // PC2086 / PC3086 102-key keyboard
+ ROM_LOAD( "40178.ic801", 0x000, 0x800, CRC(f72f1c2e) SHA1(34897e78b3d10f96b36d81778e97c4a9a1b8618b) )
+ROM_END
+
+
+ROM_START( pc3086 )
+ ROM_REGION16_LE( 0x100000, "maincpu", 0 )
+ ROM_LOAD( "c000.bin", 0xc0000, 0x8000, CRC(5a6c38e9) SHA1(382d2028e0dc5515a68843829563ce29018edb08) )
+ ROM_LOAD( "c800.bin", 0xc8000, 0x2000, CRC(3329c6d5) SHA1(982e852278185d69acde47a4f3942bc09ed76777) )
+ ROM_LOAD( "fc00.bin", 0xfc000, 0x4000, CRC(b5630753) SHA1(98c344831cc4dc59ebb39bbb1961964a8d39fe20) )
+
+ ROM_REGION( 0x800, "keyboard", 0 ) // PC2086 / PC3086 102-key keyboard
+ ROM_LOAD( "40178.ic801", 0x000, 0x800, CRC(f72f1c2e) SHA1(34897e78b3d10f96b36d81778e97c4a9a1b8618b) )
+ROM_END
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */
+COMP( 1987, ppc512, ibm5150, 0, ppc512, pc200, driver_device, 0, "Amstrad plc", "Amstrad PPC512", MACHINE_NOT_WORKING)
+COMP( 1987, ppc640, ibm5150, 0, ppc640, pc200, driver_device, 0, "Amstrad plc", "Amstrad PPC640", MACHINE_NOT_WORKING)
+COMP( 1988, pc20, ibm5150, 0, pc200, pc200, driver_device, 0, "Amstrad plc", "Amstrad PC20" , MACHINE_NOT_WORKING)
+COMP( 1988, pc200, ibm5150, 0, pc200, pc200, driver_device, 0, "Sinclair Research Ltd", "PC200 Professional Series", MACHINE_NOT_WORKING)
+COMP( 1988, pc2086, ibm5150, 0, pc200, pc200, driver_device, 0, "Amstrad plc", "Amstrad PC2086", MACHINE_NOT_WORKING )
+COMP( 1990, pc3086, ibm5150, 0, pc200, pc200, driver_device, 0, "Amstrad plc", "Amstrad PC3086", MACHINE_NOT_WORKING )