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Diffstat (limited to 'src/mess/drivers/amiga.c')
-rw-r--r--src/mess/drivers/amiga.c759
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diff --git a/src/mess/drivers/amiga.c b/src/mess/drivers/amiga.c
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+++ b/src/mess/drivers/amiga.c
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+/***************************************************************************
+Commodore Amiga - (c) 1985, Commodore Business Machines Co.
+
+Preliminary driver by:
+
+Ernesto Corvi
+
+Note 1: The 'fast-mem' memory detector in Kickstart 1.2 expects to
+see the custom chips at the end of any present fast memory (mapped
+from $C00000 onwards). I assume this is a bug, given that the routine
+was entirely rewritten for Kickstart 1.3. So the strategy is, for
+any machine that can run Kickstart 1.2 (a500,a1000 and a2000), we
+map a mirror of the custom chips right after any fast-mem we mapped.
+If we didn't map any, then we still put a mirror, but where fast-mem
+would commence ($C00000).
+
+***************************************************************************/
+
+/* Core includes */
+#include "emu.h"
+#include "includes/amiga.h"
+
+/* Components */
+#include "cpu/m68000/m68000.h"
+#include "cpu/m6502/m6502.h"
+#include "machine/6525tpi.h"
+#include "machine/6526cia.h"
+#include "machine/amigafdc.h"
+#include "machine/amigakbd.h"
+#include "machine/amigacd.h"
+#include "machine/amigacrt.h"
+#include "machine/msm6242.h"
+#include "machine/ctronics.h"
+#include "machine/nvram.h"
+#include "sound/cdda.h"
+
+/* Devices */
+#include "imagedev/chd_cd.h"
+#include "imagedev/cartslot.h"
+
+
+static READ8_DEVICE_HANDLER( amiga_cia_0_portA_r );
+static READ8_DEVICE_HANDLER( amiga_cia_0_cdtv_portA_r );
+static WRITE8_DEVICE_HANDLER( amiga_cia_0_portA_w );
+
+/***************************************************************************
+ Battery Backed-Up Clock (MSM6264)
+***************************************************************************/
+
+static READ16_HANDLER( amiga_clock_r )
+{
+ msm6242_device *rtc = space->machine().device<msm6242_device>("rtc");
+ return rtc->read(*space,offset / 2);
+}
+
+
+static WRITE16_HANDLER( amiga_clock_w )
+{
+ msm6242_device *rtc = space->machine().device<msm6242_device>("rtc");
+ rtc->write(*space,offset / 2, data);
+}
+
+
+/***************************************************************************
+ CENTRONICS PORT
+***************************************************************************/
+
+static READ8_DEVICE_HANDLER( amiga_cia_1_porta_r )
+{
+ centronics_device *centronics = device->machine().device<centronics_device>("centronics");
+ UINT8 result = 0;
+
+ /* centronics status is stored in PA0 to PA2 */
+ result |= centronics->busy_r() << 0;
+ result |= !centronics->pe_r() << 1;
+ result |= centronics->vcc_r() << 2;
+
+ /* PA3 to PA7 store the serial line status (not emulated) */
+
+ return result;
+}
+
+static const centronics_interface amiga_centronics_config =
+{
+ DEVCB_DEVICE_LINE("cia_0", mos6526_flag_w),
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+
+/***************************************************************************
+ Address maps
+***************************************************************************/
+
+static ADDRESS_MAP_START(amiga_mem, AS_PROGRAM, 16, amiga_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x000000, 0x07ffff) AM_MIRROR(0x80000) AM_RAMBANK("bank1") AM_SHARE("chip_ram")
+ AM_RANGE(0xbfd000, 0xbfefff) AM_READWRITE_LEGACY(amiga_cia_r, amiga_cia_w)
+ AM_RANGE(0xc00000, 0xc7ffff) AM_RAM /* slow-mem */
+ AM_RANGE(0xc80000, 0xcfffff) AM_READWRITE_LEGACY(amiga_custom_r, amiga_custom_w) /* see Note 1 above */
+ AM_RANGE(0xdf0000, 0xdfffff) AM_READWRITE_LEGACY(amiga_custom_r, amiga_custom_w) AM_SHARE("custom_regs") /* Custom Chips */
+ AM_RANGE(0xe80000, 0xe8ffff) AM_READWRITE_LEGACY(amiga_autoconfig_r, amiga_autoconfig_w)
+ AM_RANGE(0xf80000, 0xffffff) AM_ROM AM_REGION("user1", 0) /* System ROM - mirror */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(keyboard_mem, AS_PROGRAM, 8, amiga_state )
+ AM_RANGE(0x0000, 0x003f) AM_RAM /* internal user ram */
+ AM_RANGE(0x0040, 0x007f) AM_NOP /* unassigned */
+ AM_RANGE(0x0080, 0x0080) AM_NOP /* port a */
+ AM_RANGE(0x0081, 0x0081) AM_NOP /* port b */
+ AM_RANGE(0x0082, 0x0082) AM_NOP /* port c */
+ AM_RANGE(0x0083, 0x0083) AM_NOP /* port d */
+ AM_RANGE(0x0084, 0x0085) AM_NOP /* latch */
+ AM_RANGE(0x0086, 0x0087) AM_NOP /* count */
+ AM_RANGE(0x0088, 0x0088) AM_NOP /* upper latch & transfer latch to counter */
+ AM_RANGE(0x0089, 0x0089) AM_NOP /* clear pa0 pos edge detected */
+ AM_RANGE(0x008a, 0x008a) AM_NOP /* clear pa1 neg edge detected */
+ AM_RANGE(0x008b, 0x008e) AM_NOP /* unassigned */
+ AM_RANGE(0x008f, 0x008f) AM_NOP /* control register */
+ AM_RANGE(0x0090, 0x07ff) AM_NOP /* unassigned */
+ AM_RANGE(0x0800, 0x0fff) AM_ROM AM_REGION("keyboard", 0) /* internal mask rom */
+ADDRESS_MAP_END
+
+
+/*
+ * CDTV memory map (source: http://www.l8r.net/technical/cdtv-technical.html)
+ *
+ * 000000-0FFFFF Chip memory
+ * 100000-1FFFFF Space for extra chip memory (Megachip)
+ * 200000-9FFFFF Space for AutoConfig memory
+ * A00000-BFFFFF CIA chips
+ * C00000-C7FFFF Space for slow-fast memory
+ * C80000-DBFFFF Space
+ * DC0000-DC7FFF Power backed-up real time clock
+ * DC8000-DC87FF Non-volatile RAM
+ * DC8800-DCFFFF Space in non-volatile RAM decoded area
+ * DD0000-DEFFFF Space
+ * DF0000-DFFFFF Custom chips
+ * E00000-E7FFFF Memory card address space for front panel memory card
+ * E80000-E8FFFF AutoConfig configuration space
+ * E90000-E9FFFF First AutoConfig device, used by DMAC
+ * EA0000-EFFFFF Space for other AutoConfig devices
+ * F00000-F3FFFF CDTV ROM
+ * F40000-F7FFFF Space in CDTV ROM decoded area
+ * F80000-FBFFFF Space in Kickstart ROM decoded area (used by Kickstart 2)
+ * FC0000-FFFFFF Kickstart ROM
+ *
+ */
+
+static ADDRESS_MAP_START(cdtv_mem, AS_PROGRAM, 16, amiga_state )
+ AM_RANGE(0x000000, 0x0fffff) AM_RAMBANK("bank1") AM_SHARE("chip_ram")
+ AM_RANGE(0xbfd000, 0xbfefff) AM_READWRITE_LEGACY(amiga_cia_r, amiga_cia_w)
+ AM_RANGE(0xdc0000, 0xdc003f) AM_READWRITE_LEGACY(amiga_clock_r, amiga_clock_w)
+ AM_RANGE(0xdc8000, 0xdc87ff) AM_RAM AM_SHARE("nvram")
+ AM_RANGE(0xdf0000, 0xdfffff) AM_READWRITE_LEGACY(amiga_custom_r, amiga_custom_w) AM_SHARE("custom_regs") /* Custom Chips */
+ AM_RANGE(0xe80000, 0xe8ffff) AM_READWRITE_LEGACY(amiga_autoconfig_r, amiga_autoconfig_w)
+ AM_RANGE(0xf00000, 0xffffff) AM_ROM AM_REGION("user1", 0) /* CDTV & System ROM */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(cdtv_rcmcu_mem, AS_PROGRAM, 8, amiga_state )
+ AM_RANGE(0x0000, 0x003f) AM_RAM /* internal user ram */
+ AM_RANGE(0x0040, 0x007f) AM_NOP /* unassigned */
+ AM_RANGE(0x0080, 0x0080) AM_NOP /* port a */
+ AM_RANGE(0x0081, 0x0081) AM_NOP /* port b */
+ AM_RANGE(0x0082, 0x0082) AM_NOP /* port c */
+ AM_RANGE(0x0083, 0x0083) AM_NOP /* port d */
+ AM_RANGE(0x0084, 0x0085) AM_NOP /* latch */
+ AM_RANGE(0x0086, 0x0087) AM_NOP /* count */
+ AM_RANGE(0x0088, 0x0088) AM_NOP /* upper latch & transfer latch to counter */
+ AM_RANGE(0x0089, 0x0089) AM_NOP /* clear pa0 pos edge detected */
+ AM_RANGE(0x008a, 0x008a) AM_NOP /* clear pa1 neg edge detected */
+ AM_RANGE(0x008b, 0x008e) AM_NOP /* unassigned */
+ AM_RANGE(0x008f, 0x008f) AM_NOP /* control register */
+ AM_RANGE(0x0090, 0x07ff) AM_NOP /* unassigned */
+ AM_RANGE(0x0800, 0x0fff) AM_ROM AM_REGION("rcmcu", 0) /* internal mask rom */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(a1000_mem, AS_PROGRAM, 16, amiga_state )
+ AM_RANGE(0x000000, 0x03ffff) AM_MIRROR(0xc0000) AM_RAMBANK("bank1") AM_SHARE("chip_ram")
+ AM_RANGE(0xbfd000, 0xbfefff) AM_READWRITE_LEGACY(amiga_cia_r, amiga_cia_w)
+ AM_RANGE(0xc00000, 0xc3ffff) AM_READWRITE_LEGACY(amiga_custom_r, amiga_custom_w) /* See Note 1 above */
+ AM_RANGE(0xdf0000, 0xdfffff) AM_READWRITE_LEGACY(amiga_custom_r, amiga_custom_w) AM_SHARE("custom_regs") /* Custom Chips */
+ AM_RANGE(0xe80000, 0xe8ffff) AM_READWRITE_LEGACY(amiga_autoconfig_r, amiga_autoconfig_w)
+ AM_RANGE(0xf80000, 0xfbffff) AM_ROM AM_REGION("user1", 0) /* Bootstrap ROM */
+ AM_RANGE(0xfc0000, 0xffffff) AM_RAMBANK("bank2") /* Writable Control Store RAM */
+ADDRESS_MAP_END
+
+
+/***************************************************************************
+ Inputs
+***************************************************************************/
+
+static INPUT_PORTS_START( amiga_common )
+ PORT_START("input")
+ PORT_CONFNAME( 0x20, 0x00, "Input Port 0 Device")
+ PORT_CONFSETTING( 0x00, "Mouse" )
+ PORT_CONFSETTING( 0x20, DEF_STR(Joystick) )
+ PORT_CONFNAME( 0x10, 0x10, "Input Port 1 Device")
+ PORT_CONFSETTING( 0x00, "Mouse" )
+ PORT_CONFSETTING( 0x10, DEF_STR(Joystick) )
+
+ PORT_START("CIA0PORTA")
+ PORT_BIT( 0x3f, IP_ACTIVE_LOW, IPT_SPECIAL )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+
+ PORT_START("JOY0DAT")
+ PORT_BIT( 0x0303, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, amiga_state,amiga_joystick_convert, "P1JOY")
+ PORT_BIT( 0xfcfc, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("JOY1DAT")
+ PORT_BIT( 0x0303, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, amiga_state,amiga_joystick_convert, "P2JOY")
+ PORT_BIT( 0xfcfc, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("POTGO")
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0xaaff, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("P1JOY")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
+
+ PORT_START("P2JOY")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
+
+ PORT_START("P0MOUSEX")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(1)
+
+ PORT_START("P0MOUSEY")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(1)
+
+ PORT_START("P1MOUSEX")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(2)
+
+ PORT_START("P1MOUSEY")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(2)
+
+ PORT_INCLUDE( amiga_us_keyboard )
+
+INPUT_PORTS_END
+
+
+static INPUT_PORTS_START( amiga )
+ PORT_START("hardware")
+ PORT_CONFNAME( 0x08, 0x08, "Battery backed-up RTC")
+ PORT_CONFSETTING( 0x00, "Not Installed" )
+ PORT_CONFSETTING( 0x08, "Installed" )
+
+ PORT_INCLUDE( amiga_common )
+INPUT_PORTS_END
+
+
+/* TODO: Support for the CDTV remote control */
+static INPUT_PORTS_START( cdtv )
+ PORT_INCLUDE( amiga_common )
+INPUT_PORTS_END
+
+/***************************************************************************
+ Machine drivers
+***************************************************************************/
+
+static MACHINE_START( cdtv )
+{
+ MACHINE_START_CALL( amigacd );
+}
+
+
+static MACHINE_RESET( cdtv )
+{
+ MACHINE_RESET_CALL( amiga );
+
+ /* initialize the cdrom controller */
+ MACHINE_RESET_CALL( amigacd );
+}
+
+static const mos6526_interface cia_0_ntsc_intf =
+{
+ 60, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_0", amiga_cia_0_irq), /* irq_func */
+ DEVCB_DEVICE_LINE_MEMBER("centronics", centronics_device, strobe_w), /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("cia_0", amiga_cia_0_portA_r),
+ DEVCB_DEVICE_HANDLER("cia_0", amiga_cia_0_portA_w), /* port A */
+ DEVCB_NULL,
+ DEVCB_DEVICE_MEMBER("centronics", centronics_device, write) /* port B */
+};
+
+static const mos6526_interface cia_0_pal_intf =
+{
+ 50, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_0", amiga_cia_0_irq), /* irq_func */
+ DEVCB_DEVICE_LINE_MEMBER("centronics", centronics_device, strobe_w), /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("cia_0", amiga_cia_0_portA_r),
+ DEVCB_DEVICE_HANDLER("cia_0", amiga_cia_0_portA_w), /* port A */
+ DEVCB_NULL,
+ DEVCB_DEVICE_MEMBER("centronics", centronics_device, write) /* port B */
+};
+
+static const mos6526_interface cia_1_intf =
+{
+ 0, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_1", amiga_cia_1_irq), /* irq_func */
+ DEVCB_NULL, /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("centronics", amiga_cia_1_porta_r),
+ DEVCB_NULL, /* port A */
+ DEVCB_NULL,
+ DEVCB_DEVICE_MEMBER("fdc", amiga_fdc, ciaaprb_w) /* port B */
+};
+
+static const mos6526_interface cia_0_cdtv_intf =
+{
+ 0, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_0", amiga_cia_0_irq), /* irq_func */
+ DEVCB_DEVICE_LINE_MEMBER("centronics", centronics_device, strobe_w), /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("cia_0", amiga_cia_0_cdtv_portA_r),
+ DEVCB_DEVICE_HANDLER("cia_0", amiga_cia_0_portA_w), /* port A */
+ DEVCB_NULL,
+ DEVCB_DEVICE_MEMBER("centronics", centronics_device, write) /* port B */
+};
+
+static const mos6526_interface cia_1_cdtv_intf =
+{
+ 0, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_1", amiga_cia_1_irq), /* irq_func */
+ DEVCB_NULL, /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("centronics", amiga_cia_1_porta_r),
+ DEVCB_NULL, /* port A */
+ DEVCB_NULL,
+ DEVCB_NULL /* port B */
+};
+
+static const tpi6525_interface cdtv_tpi_intf =
+{
+ DEVCB_DEVICE_LINE("tpi6525", amigacd_tpi6525_irq),
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("tpi6525", amigacd_tpi6525_portb_w),
+ DEVCB_DEVICE_HANDLER("tpi6525", amigacd_tpi6525_portc_r),
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+static SLOT_INTERFACE_START( amiga_floppies )
+ SLOT_INTERFACE( "35dd", FLOPPY_35_DD )
+SLOT_INTERFACE_END
+
+static MACHINE_CONFIG_FRAGMENT( amiga_cartslot )
+ MCFG_CARTSLOT_ADD("cart")
+ MCFG_CARTSLOT_EXTENSION_LIST("rom,bin")
+ MCFG_CARTSLOT_NOT_MANDATORY
+MACHINE_CONFIG_END
+
+static MSM6242_INTERFACE( amiga_rtc_intf )
+{
+ DEVCB_NULL
+};
+
+static MACHINE_CONFIG_START( ntsc, amiga_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000, AMIGA_68000_NTSC_CLOCK)
+ MCFG_CPU_PROGRAM_MAP(amiga_mem)
+
+ MCFG_CPU_ADD("keyboard", M6502, XTAL_1MHz) /* 1 MHz? */
+ MCFG_CPU_PROGRAM_MAP(keyboard_mem)
+ MCFG_DEVICE_DISABLE()
+
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(59.997)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+
+ MCFG_MACHINE_RESET( amiga )
+
+ /* video hardware */
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK)
+ MCFG_SCREEN_SIZE(228*4, 262)
+ MCFG_SCREEN_VISIBLE_AREA(214, (228*4)-1, 34, 262-1)
+ MCFG_SCREEN_UPDATE_STATIC(amiga)
+
+ MCFG_PALETTE_LENGTH(4096)
+ MCFG_PALETTE_INIT( amiga )
+
+ MCFG_VIDEO_START(amiga)
+
+ /* devices */
+ MCFG_MSM6242_ADD("rtc",amiga_rtc_intf)
+ MCFG_CENTRONICS_PRINTER_ADD("centronics", amiga_centronics_config)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
+
+ MCFG_SOUND_ADD("amiga", AMIGA, 3579545)
+ MCFG_SOUND_ROUTE(0, "lspeaker", 0.50)
+ MCFG_SOUND_ROUTE(1, "rspeaker", 0.50)
+ MCFG_SOUND_ROUTE(2, "rspeaker", 0.50)
+ MCFG_SOUND_ROUTE(3, "lspeaker", 0.50)
+
+ /* cia */
+ MCFG_MOS8520_ADD("cia_0", AMIGA_68000_NTSC_CLOCK / 10, cia_0_ntsc_intf)
+ MCFG_MOS8520_ADD("cia_1", AMIGA_68000_NTSC_CLOCK, cia_1_intf)
+
+ /* fdc */
+ MCFG_AMIGA_FDC_ADD("fdc", AMIGA_68000_NTSC_CLOCK)
+ MCFG_FLOPPY_DRIVE_ADD("fd0", amiga_floppies, "35dd", 0, amiga_fdc::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fd1", amiga_floppies, 0, 0, amiga_fdc::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fd2", amiga_floppies, 0, 0, amiga_fdc::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fd3", amiga_floppies, 0, 0, amiga_fdc::floppy_formats)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( a1000n, ntsc )
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(a1000_mem)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( a500n, ntsc )
+ MCFG_FRAGMENT_ADD(amiga_cartslot)
+MACHINE_CONFIG_END
+
+struct cdrom_interface cdtv_cdrom =
+{
+ "cdrom",
+ NULL
+};
+
+static MACHINE_CONFIG_DERIVED( cdtv, ntsc )
+ MCFG_CPU_REPLACE("maincpu", M68000, CDTV_CLOCK_X1 / 4)
+ MCFG_CPU_PROGRAM_MAP(cdtv_mem)
+
+ MCFG_DEVICE_REMOVE("keyboard")
+
+ MCFG_CPU_ADD("rcmcu", M6502, XTAL_1MHz) /* 1 MHz? */
+ MCFG_CPU_PROGRAM_MAP(cdtv_rcmcu_mem)
+ MCFG_DEVICE_DISABLE()
+
+// MCFG_CPU_ADD("lcd", LC6554, XTAL_4MHz) /* 4 MHz? */
+// MCFG_CPU_PROGRAM_MAP(cdtv_lcd_mem)
+
+ MCFG_MACHINE_START( cdtv )
+ MCFG_MACHINE_RESET( cdtv )
+
+ MCFG_NVRAM_ADD_0FILL("nvram")
+
+ MCFG_SOUND_ADD( "cdda", CDDA, 0 )
+ MCFG_SOUND_ROUTE( 0, "lspeaker", 1.0 )
+ MCFG_SOUND_ROUTE( 1, "rspeaker", 1.0 )
+
+ /* cdrom */
+ MCFG_CDROM_ADD( "cdrom", cdtv_cdrom)
+ MCFG_SOFTWARE_LIST_ADD("cd_list", "cdtv")
+
+ MCFG_TPI6525_ADD("tpi6525", cdtv_tpi_intf)
+
+ /* cia */
+ MCFG_DEVICE_REMOVE("cia_0")
+ MCFG_DEVICE_REMOVE("cia_1")
+ MCFG_MOS8520_ADD("cia_0", CDTV_CLOCK_X1 / 40, cia_0_cdtv_intf)
+ MCFG_MOS8520_ADD("cia_1", CDTV_CLOCK_X1 / 4, cia_1_cdtv_intf)
+
+ /* fdc */
+ MCFG_DEVICE_MODIFY("fdc")
+ MCFG_DEVICE_CLOCK(CDTV_CLOCK_X1 / 4)
+MACHINE_CONFIG_END
+
+
+static MACHINE_CONFIG_DERIVED( pal, ntsc )
+
+ /* adjust for PAL specs */
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_CLOCK( AMIGA_68000_PAL_CLOCK)
+
+ // Change the FDC clock too?
+
+ MCFG_SCREEN_MODIFY("screen")
+ MCFG_SCREEN_REFRESH_RATE(50)
+ MCFG_SCREEN_SIZE(228*4, 312)
+ MCFG_SCREEN_VISIBLE_AREA(214, (228*4)-1, 34, 312-1)
+
+ /* cia */
+ MCFG_DEVICE_REMOVE("cia_0")
+ MCFG_MOS8520_ADD("cia_0", AMIGA_68000_PAL_CLOCK / 10, cia_0_pal_intf)
+
+ /* fdc */
+ MCFG_DEVICE_MODIFY("fdc")
+ MCFG_DEVICE_CLOCK(AMIGA_68000_PAL_CLOCK)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( a500p, pal )
+ MCFG_FRAGMENT_ADD(amiga_cartslot)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( a1000p, pal )
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(a1000_mem)
+MACHINE_CONFIG_END
+
+/***************************************************************************
+
+ Amiga specific stuff
+
+***************************************************************************/
+
+
+static READ8_DEVICE_HANDLER( amiga_cia_0_portA_r )
+{
+ UINT8 ret = device->machine().root_device().ioport("CIA0PORTA")->read() & 0xc0; /* Gameport 1 and 0 buttons */
+ ret |= device->machine().device<amiga_fdc>("fdc")->ciaapra_r();
+ return ret;
+}
+
+
+static READ8_DEVICE_HANDLER( amiga_cia_0_cdtv_portA_r )
+{
+ return device->machine().root_device().ioport("CIA0PORTA")->read() & 0xc0; /* Gameport 1 and 0 buttons */
+}
+
+
+static WRITE8_DEVICE_HANDLER( amiga_cia_0_portA_w )
+{
+ amiga_state *state = device->machine().driver_data<amiga_state>();
+ /* switch banks as appropriate */
+ state->membank("bank1")->set_entry(data & 1);
+
+ /* swap the write handlers between ROM and bank 1 based on the bit */
+ if ((data & 1) == 0) {
+ UINT32 mirror_mask = state->m_chip_ram.bytes();
+
+ while( (mirror_mask<<1) < 0x100000 ) {
+ mirror_mask |= ( mirror_mask << 1 );
+ }
+
+ /* overlay disabled, map RAM on 0x000000 */
+ device->machine().device("maincpu")->memory().space(AS_PROGRAM)->install_write_bank(0x000000, state->m_chip_ram.bytes() - 1, 0, mirror_mask, "bank1");
+
+ /* if there is a cart region, check for cart overlay */
+ if (device->machine().root_device().memregion("user2")->base() != NULL)
+ amiga_cart_check_overlay(device->machine());
+ }
+ else
+ /* overlay enabled, map Amiga system ROM on 0x000000 */
+ device->machine().device("maincpu")->memory().space(AS_PROGRAM)->unmap_write(0x000000, state->m_chip_ram.bytes() - 1);
+
+ set_led_status( device->machine(), 0, ( data & 2 ) ? 0 : 1 ); /* bit 2 = Power Led on Amiga */
+ output_set_value("power_led", ( data & 2 ) ? 0 : 1);
+}
+
+static UINT16 amiga_read_joy0dat(running_machine &machine)
+{
+ if ( machine.root_device().ioport("input")->read() & 0x20 ) {
+ /* Joystick */
+ return machine.root_device().ioport("JOY0DAT")->read_safe(0xffff);
+ } else {
+ /* Mouse */
+ int input;
+ input = ( machine.root_device().ioport("P0MOUSEX")->read() & 0xff );
+ input |= ( machine.root_device().ioport("P0MOUSEY")->read() & 0xff ) << 8;
+ return input;
+ }
+}
+
+static UINT16 amiga_read_joy1dat(running_machine &machine)
+{
+ if ( machine.root_device().ioport("input")->read() & 0x10 ) {
+ /* Joystick */
+ return machine.root_device().ioport("JOY1DAT")->read_safe(0xffff);
+ } else {
+ /* Mouse */
+ int input;
+ input = ( machine.root_device().ioport("P1MOUSEX")->read() & 0xff );
+ input |= ( machine.root_device().ioport("P1MOUSEY")->read() & 0xff ) << 8;
+ return input;
+ }
+}
+
+static void amiga_reset(running_machine &machine)
+{
+ if (machine.root_device().ioport("hardware")->read() & 0x08)
+ {
+ /* Install RTC */
+ machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_readwrite_handler(0xdc0000, 0xdc003f, FUNC(amiga_clock_r), FUNC(amiga_clock_w));
+ }
+ else
+ {
+ /* No RTC support */
+ machine.device("maincpu")->memory().space(AS_PROGRAM)->unmap_readwrite(0xdc0000, 0xdc003f);
+ }
+}
+
+DRIVER_INIT_MEMBER(amiga_state,amiga)
+{
+ static const amiga_machine_interface amiga_intf =
+ {
+ ANGUS_CHIP_RAM_MASK,
+ amiga_read_joy0dat, amiga_read_joy1dat, /* joy0dat_r & joy1dat_r */
+ NULL, /* potgo_w */
+ NULL, /* serdat_w */
+ NULL, /* scanline0_callback */
+ amiga_reset, /* reset_callback */
+ amiga_cart_nmi, /* nmi_callback */
+ 0 /* flags */
+ };
+
+ amiga_machine_config(machine(), &amiga_intf);
+
+ /* set up memory */
+ membank("bank1")->configure_entry(0, m_chip_ram);
+ membank("bank1")->configure_entry(1, machine().root_device().memregion("user1")->base());
+
+ /* initialize cartridge (if present) */
+ amiga_cart_init(machine());
+
+ /* initialize keyboard */
+ amigakbd_init(machine());
+}
+
+#ifdef UNUSED_FUNCTION
+DRIVER_INIT_MEMBER(apollo_state,amiga_ecs)
+{
+ static const amiga_machine_interface amiga_intf =
+ {
+ ECS_CHIP_RAM_MASK,
+ amiga_cia_0_portA_r, NULL, /* CIA0 port A & B read */
+ amiga_cia_0_portA_w, NULL, /* CIA0 port A & B write */
+ NULL, NULL, /* CIA1 port A & B read */
+ NULL, amiga_fdc_control_w, /* CIA1 port A & B write */
+ amiga_read_joy0dat, amiga_read_joy1dat, /* joy0dat_r & joy1dat_r */
+ NULL, /* potgo_w */
+ NULL, /* serdat_w */
+ NULL, /* scanline0_callback */
+ amiga_reset, /* reset_callback */
+ amiga_cart_nmi, /* nmi_callback */
+ 0 /* flags */
+ };
+
+ amiga_machine_config(machine(), &amiga_intf);
+
+ /* set up memory */
+ 1.root_device().membank(0)->configure_entries(1, m_chip_ram, 0);
+ 1.root_device().membank(1)->configure_entries(1, machine().root_device().memregion("user1")->base(), 0);
+
+ /* initialize Action Replay (if present) */
+ amiga_cart_init(machine());
+
+ /* initialize keyboard */
+ amigakbd_init(machine());
+}
+#endif
+
+DRIVER_INIT_MEMBER(amiga_state,cdtv)
+{
+ static const amiga_machine_interface amiga_intf =
+ {
+ ECS_CHIP_RAM_MASK,
+ amiga_read_joy0dat, amiga_read_joy1dat, /* joy0dat_r & joy1dat_r */
+ NULL, /* potgo_w */
+ NULL, /* serdat_w */
+ NULL, /* scanline0_callback */
+ NULL, /* reset_callback */
+ NULL, /* nmi_callback */
+ 0 /* flags */
+ };
+
+ amiga_machine_config(machine(), &amiga_intf);
+
+ /* set up memory */
+ membank("bank1")->configure_entry(0, m_chip_ram);
+ membank("bank1")->configure_entry(1, machine().root_device().memregion("user1")->base());
+
+ /* initialize keyboard - in cdtv we can use a standard Amiga keyboard*/
+ amigakbd_init(machine());
+}
+
+
+/***************************************************************************
+ ROM DEFINITIONS
+***************************************************************************/
+
+ROM_START( a500n )
+ ROM_REGION16_BE(0x080000, "user1", 0)
+ ROM_DEFAULT_BIOS("kick13")
+ ROM_SYSTEM_BIOS(0, "kick12", "Kickstart 1.2 (33.180)")
+ ROMX_LOAD("315093-01.u6", 0x000000, 0x040000, CRC(a6ce1636) SHA1(11f9e62cf299f72184835b7b2a70a16333fc0d88), ROM_GROUPWORD | ROM_BIOS(1))
+ ROM_SYSTEM_BIOS(1, "kick13", "Kickstart 1.3 (34.5)")
+ ROMX_LOAD("315093-02.u6", 0x000000, 0x040000, CRC(c4f0f55f) SHA1(891e9a547772fe0c6c19b610baf8bc4ea7fcb785), ROM_GROUPWORD | ROM_BIOS(2))
+ ROM_COPY("user1", 0x000000, 0x040000, 0x040000)
+ ROM_SYSTEM_BIOS(2, "kick204", "Kickstart 2.04 (37.175)")
+ ROMX_LOAD("390979-01.u6", 0x000000, 0x080000, CRC(c3bdb240) SHA1(c5839f5cb98a7a8947065c3ed2f14f5f42e334a1), ROM_GROUPWORD | ROM_BIOS(3)) /* identical to 363968.01 */
+ ROM_SYSTEM_BIOS(3, "kick31", "Kickstart 3.1 (40.63)")
+ ROMX_LOAD("kick40063.u6", 0x000000, 0x080000, CRC(fc24ae0d) SHA1(3b7f1493b27e212830f989f26ca76c02049f09ca), ROM_GROUPWORD | ROM_BIOS(4)) /* part number? */
+
+ /* action replay cartridge */
+ ROM_REGION16_BE(0x080000, "user2", ROMREGION_ERASEFF )
+ ROM_CART_LOAD("cart", 0x0000, 0x080000, ROM_NOMIRROR | ROM_OPTIONAL)
+
+ /* keyboard controller, mos 6500/1 mcu */
+ ROM_REGION(0x800, "keyboard", 0)
+ ROM_LOAD("328191-02.ic1", 0x000, 0x800, NO_DUMP)
+ROM_END
+
+#define rom_a500p rom_a500n
+
+
+ROM_START( a1000n )
+ ROM_REGION16_BE(0x080000, "user1", 0)
+ ROM_LOAD16_BYTE("252179-01.u5n", 0x000000, 0x001000, CRC(42553bc4) SHA1(8855a97f7a44e3f62d1c88d938fee1f4c606af5b))
+ ROM_LOAD16_BYTE("252180-01.u5p", 0x000001, 0x001000, CRC(8e5b9a37) SHA1(d10f1564b99f5ffe108fa042362e877f569de2c3))
+
+ /* keyboard controller, mos 6500/1 mcu */
+ ROM_REGION(0x800, "keyboard", 0)
+ ROM_LOAD("328191-01.bin", 0x000, 0x800, NO_DUMP)
+ROM_END
+
+#define rom_a1000p rom_a1000n
+
+
+ROM_START( cdtv )
+ ROM_REGION16_BE(0x100000, "user1", 0)
+ ROM_LOAD16_BYTE("391008-01.u34", 0x000000, 0x020000, CRC(791cb14b) SHA1(277a1778924496353ffe56be68063d2a334360e4))
+ ROM_LOAD16_BYTE("391009-01.u35", 0x000001, 0x020000, CRC(accbbc2e) SHA1(41b06d1679c6e6933c3378b7626025f7641ebc5c))
+ ROM_COPY("user1", 0x000000, 0x040000, 0x040000)
+ ROMX_LOAD( "315093-02.u13", 0x080000, 0x040000, CRC(c4f0f55f) SHA1(891e9a547772fe0c6c19b610baf8bc4ea7fcb785), ROM_GROUPWORD)
+ ROM_COPY("user1", 0x080000, 0x0c0000, 0x040000)
+
+ /* remote control input converter, mos 6500/1 mcu */
+ ROM_REGION(0x800, "rcmcu", 0)
+ ROM_LOAD("252609-02.u75", 0x000, 0x800, NO_DUMP)
+
+ /* lcd controller, sanyo lc6554h */
+ ROM_REGION(0x1000, "lcd", 0)
+ ROM_LOAD("252608-01.u62", 0x000, 0x1000, NO_DUMP)
+ROM_END
+
+/***************************************************************************
+ GAME DRIVERS
+***************************************************************************/
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1985, a1000n, 0, 0, a1000n, amiga, amiga_state, amiga, "Commodore Business Machines", "Amiga 1000 (NTSC)", GAME_IMPERFECT_GRAPHICS )
+COMP( 1985, a1000p, a1000n, 0, a1000p, amiga, amiga_state, amiga, "Commodore Business Machines", "Amiga 1000 (PAL)", GAME_IMPERFECT_GRAPHICS )
+COMP( 1987, a500n, 0, 0, a500n, amiga, amiga_state, amiga, "Commodore Business Machines", "Amiga 500 (NTSC, OCS)", GAME_IMPERFECT_GRAPHICS )
+COMP( 1987, a500p, a500n, 0, a500p, amiga, amiga_state, amiga, "Commodore Business Machines", "Amiga 500 (PAL, OCS)", GAME_IMPERFECT_GRAPHICS )
+COMP( 1991, cdtv, 0, 0, cdtv, cdtv, amiga_state, cdtv, "Commodore Business Machines", "CDTV (NTSC)", GAME_IMPERFECT_GRAPHICS )