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-rw-r--r--src/mess/drivers/rmnimbus.c390
1 files changed, 390 insertions, 0 deletions
diff --git a/src/mess/drivers/rmnimbus.c b/src/mess/drivers/rmnimbus.c
new file mode 100644
index 00000000000..e7295c87482
--- /dev/null
+++ b/src/mess/drivers/rmnimbus.c
@@ -0,0 +1,390 @@
+/*
+ drivers/rmnimbus.c
+
+ Research machines Nimbus.
+
+ 2009-11-14, P.Harvey-Smith.
+
+*/
+
+#include "emu.h"
+#include "cpu/i86/i86.h"
+#include "cpu/mcs51/mcs51.h"
+#include "imagedev/flopdrv.h"
+#include "imagedev/harddriv.h"
+#include "machine/ram.h"
+#include "formats/pc_dsk.h"
+#include "includes/rmnimbus.h"
+#include "machine/er59256.h"
+#include "machine/scsi.h"
+#include "machine/scsihd.h"
+#include "machine/6522via.h"
+#include "machine/ctronics.h"
+#include "sound/ay8910.h"
+#include "sound/msm5205.h"
+
+const unsigned char nimbus_palette[SCREEN_NO_COLOURS][3] =
+{
+ /*normal brightness */
+ { 0x00,0x00,0x00 }, /* black */
+ { 0x00,0x00,0x80 }, /* blue */
+ { 0x80,0x00,0x00 }, /* red */
+ { 0x80,0x00,0x80 }, /* magenta */
+ { 0x00,0x80,0x00 }, /* green */
+ { 0x00,0x80,0x80 }, /* cyan */
+ { 0x80,0x80,0x00 }, /* yellow */
+ { 0x80,0x80,0x80 }, /* light grey */
+
+ /*enhanced brightness*/
+ { 0x40,0x40,0x40 }, /* dark grey */
+ { 0x00,0x00,0xFF }, /* light blue */
+ { 0xFF,0x00,0x00 }, /* light red */
+ { 0xFF,0x00,0xFF }, /* light magenta */
+ { 0x00,0xFF,0x00 }, /* light green */
+ { 0x00,0xFF,0xFF }, /* light cyan */
+ { 0xFF,0xFF,0x00 }, /* yellow */
+ { 0xFF,0xFF,0xFF } /* white */
+};
+
+static const floppy_interface nimbus_floppy_interface =
+{
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ FLOPPY_STANDARD_5_25_DSSD_35,
+ LEGACY_FLOPPY_OPTIONS_NAME(pc),
+ NULL,
+ NULL
+};
+
+/* Null port handlers for now, I believe that the IO ports are used for */
+/* the nimbus rompacks */
+
+static const ay8910_interface nimbus_ay8910_interface =
+{
+ AY8910_LEGACY_OUTPUT,
+ AY8910_DEFAULT_LOADS,
+ DEVCB_NULL, /* portA read */
+ DEVCB_NULL, /* portB read */
+ DEVCB_DRIVER_MEMBER(rmnimbus_state, nimbus_sound_ay8910_porta_w), /* portA write */
+ DEVCB_DRIVER_MEMBER(rmnimbus_state, nimbus_sound_ay8910_portb_w) /* portB write */
+};
+
+static const msm5205_interface msm5205_config =
+{
+ nimbus_msm5205_vck, /* VCK function */
+ MSM5205_S48_4B /* 8 kHz */
+};
+
+static const SCSIConfigTable nimbus_scsi_dev_table =
+{
+ 4, /* 4 SCSI devices */
+ {
+ { SCSI_ID_0, HARDDISK0_TAG },
+ { SCSI_ID_1, HARDDISK1_TAG },
+ { SCSI_ID_2, HARDDISK2_TAG },
+ { SCSI_ID_3, HARDDISK3_TAG },
+ }
+};
+
+
+static const SCSIBus_interface scsibus_config =
+{
+ &nimbus_scsi_dev_table,
+ &nimbus_scsi_linechange
+};
+
+static const centronics_interface nimbus_centronics_config =
+{
+ DEVCB_DEVICE_LINE(VIA_TAG,nimbus_ack_w),
+ DEVCB_NULL,
+ DEVCB_NULL
+};
+
+static ADDRESS_MAP_START(nimbus_mem, AS_PROGRAM, 16, rmnimbus_state )
+ AM_RANGE( 0x00000, 0x1FFFF ) AM_RAMBANK(RAM_BANK00_TAG)
+ AM_RANGE( 0x20000, 0x3FFFF ) AM_RAMBANK(RAM_BANK01_TAG)
+ AM_RANGE( 0x40000, 0x5FFFF ) AM_RAMBANK(RAM_BANK02_TAG)
+ AM_RANGE( 0x60000, 0x7FFFF ) AM_RAMBANK(RAM_BANK03_TAG)
+ AM_RANGE( 0x80000, 0x9FFFF ) AM_RAMBANK(RAM_BANK04_TAG)
+ AM_RANGE( 0xA0000, 0xBFFFF ) AM_RAMBANK(RAM_BANK05_TAG)
+ AM_RANGE( 0xC0000, 0xDFFFF ) AM_RAMBANK(RAM_BANK06_TAG)
+ AM_RANGE( 0xE0000, 0xEFFFF ) AM_RAMBANK(RAM_BANK07_TAG)
+ AM_RANGE( 0xF0000, 0xFFFFF ) AM_ROM AM_REGION(MAINCPU_TAG, 0x0f0000)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(nimbus_io, AS_IO, 16, rmnimbus_state )
+ AM_RANGE( 0x0000, 0x0031) AM_READWRITE(nimbus_video_io_r, nimbus_video_io_w)
+ AM_RANGE( 0x0032, 0x007f) AM_READWRITE(nimbus_io_r, nimbus_io_w)
+ AM_RANGE( 0x0080, 0x0081) AM_READWRITE8(nimbus_mcu_r, nimbus_mcu_w, 0x00FF)
+ AM_RANGE( 0x0092, 0x0093) AM_READWRITE8(nimbus_iou_r, nimbus_iou_w, 0x00FF)
+ AM_RANGE( 0x00A4, 0x00A5) AM_READWRITE8(nimbus_mouse_js_r, nimbus_mouse_js_w, 0x00FF)
+ AM_RANGE( 0X00c0, 0X00cf) AM_READWRITE8(nimbus_pc8031_r, nimbus_pc8031_w, 0x00FF)
+ AM_RANGE( 0X00e0, 0X00ef) AM_READWRITE8(nimbus_sound_ay8910_r, nimbus_sound_ay8910_w, 0x00FF)
+ AM_RANGE( 0x00f0, 0x00f7) AM_DEVREADWRITE8(Z80SIO_TAG, z80sio_device, read, write, 0x00ff)
+ AM_RANGE( 0x0400, 0x041f) AM_READWRITE8(nimbus_disk_r, nimbus_disk_w, 0x00FF)
+ AM_RANGE( 0x0480, 0x049f) AM_DEVREADWRITE8(VIA_TAG, via6522_device, read, write, 0x00FF)
+ AM_RANGE( 0xff00, 0xffff) AM_READWRITE(nimbus_i186_internal_port_r, nimbus_i186_internal_port_w)/* CPU 80186 */
+ADDRESS_MAP_END
+
+static INPUT_PORTS_START( nimbus )
+ PORT_START("config")
+ PORT_CONFNAME( 0x01, 0x00, "Input Port 0 Device")
+ PORT_CONFSETTING( 0x00, "Mouse" )
+ PORT_CONFSETTING( 0x01, DEF_STR( Joystick ) )
+
+ PORT_START("KEY0") /* Key row 0 scancodes 00..07 */
+ //PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(0x1B)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
+
+ PORT_START("KEY1") /* Key row 1 scancodes 08..0F */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(0x08)
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR(0x09)
+
+ PORT_START("KEY2") /* Key row 2 scancodes 10..17 */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
+
+ PORT_START("KEY3") /* Key row 3 scancodes 18..1F */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(0x0D)
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) // Ether control
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
+
+ PORT_START("KEY4") /* Key row 4 scancodes 20..27 */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';')
+
+ PORT_START("KEY5") /* Key row 5 scancodes 28..2F */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("#") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('#')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BACKSLASH") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LSHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TILDE") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
+
+
+ PORT_START("KEY6") /* Key row 6 scancodes 30..37 */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RSHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_2)
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PRSCR") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('*')
+
+ PORT_START("KEY7") /* Key row 7 scancodes 38..3F */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
+
+
+ PORT_START("KEY8") /* Key row 8 scancodes 40..47 */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F7)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F8") PORT_CODE(KEYCODE_F8)
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F9") PORT_CODE(KEYCODE_F9)
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F10") PORT_CODE(KEYCODE_F10)
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("NUMLK") PORT_CODE(KEYCODE_NUMLOCK)
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SCRLK") PORT_CODE(KEYCODE_SCRLOCK)
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7')
+
+ PORT_START("KEY9") /* Key row 9 scancodes 48..4F */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP8") PORT_CODE(KEYCODE_8_PAD) //PORT_CHAR('8')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP9") PORT_CODE(KEYCODE_9_PAD) //PORT_CHAR('9')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP-") PORT_CODE(KEYCODE_MINUS_PAD) //PORT_CHAR('-')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP4") PORT_CODE(KEYCODE_4_PAD) //PORT_CHAR('4')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP5") PORT_CODE(KEYCODE_5_PAD) //PORT_CHAR('5')
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP6") PORT_CODE(KEYCODE_6_PAD) //PORT_CHAR('6')
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP+") PORT_CODE(KEYCODE_PLUS_PAD) //PORT_CHAR('+')
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP1") PORT_CODE(KEYCODE_1_PAD) //PORT_CHAR('1')
+
+ PORT_START("KEY10") /* Key row 10 scancodes 50..57 */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP2") PORT_CODE(KEYCODE_2_PAD) //PORT_CHAR('2')
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP3") PORT_CODE(KEYCODE_3_PAD) //PORT_CHAR('3')
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP0") PORT_CODE(KEYCODE_0_PAD) //PORT_CHAR('0')
+ PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP.") PORT_CODE(KEYCODE_DEL_PAD) //PORT_CHAR('.')
+ PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
+ //PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5')
+ //PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP6") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6')
+ //PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP+") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+')
+ //PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("KP1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1')
+
+ PORT_START(JOYSTICK0_TAG)
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1) PORT_8WAY // XB
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1) PORT_8WAY // XA
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1) PORT_8WAY // YA
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1) PORT_8WAY // YB
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+
+ PORT_START(MOUSE_BUTTON_TAG) /* Mouse buttons */
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON2) PORT_NAME("Mouse Button 2") PORT_CODE(MOUSECODE_BUTTON2)
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_NAME("Mouse Button 1") PORT_CODE(MOUSECODE_BUTTON1)
+
+ PORT_START(MOUSEX_TAG) /* Mouse - X AXIS */
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(0) PORT_PLAYER(1)
+
+ PORT_START(MOUSEY_TAG) /* Mouse - Y AXIS */
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(0) PORT_PLAYER(1)
+
+INPUT_PORTS_END
+
+static ADDRESS_MAP_START(nimbus_iocpu_mem, AS_PROGRAM, 8, rmnimbus_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0x2000, 0x7fff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( nimbus_iocpu_io , AS_IO, 8, rmnimbus_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x00000, 0x000FF) AM_READWRITE(nimbus_pc8031_iou_r, nimbus_pc8031_iou_w)
+ AM_RANGE(0x00010, 0x07fff) AM_RAM
+ AM_RANGE(0x20000, 0x20004) AM_READWRITE(nimbus_pc8031_port_r, nimbus_pc8031_port_w)
+ADDRESS_MAP_END
+
+
+static PALETTE_INIT( nimbus )
+{
+ int colourno;
+
+ for ( colourno = 0; colourno < SCREEN_NO_COLOURS; colourno++ )
+ {
+ palette_set_color_rgb(machine, colourno, nimbus_palette[colourno][RED], nimbus_palette[colourno][GREEN], nimbus_palette[colourno][BLUE]);
+ }
+}
+
+
+static MACHINE_CONFIG_START( nimbus, rmnimbus_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD(MAINCPU_TAG, I80186, 10000000)
+ MCFG_CPU_PROGRAM_MAP(nimbus_mem)
+ MCFG_CPU_IO_MAP(nimbus_io)
+
+ MCFG_CPU_ADD(IOCPU_TAG, I8031, 11059200)
+ MCFG_CPU_PROGRAM_MAP(nimbus_iocpu_mem)
+ MCFG_CPU_IO_MAP(nimbus_iocpu_io)
+
+ MCFG_MACHINE_START( nimbus )
+
+ MCFG_MACHINE_RESET(nimbus)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(50)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(100))
+ MCFG_SCREEN_UPDATE_STATIC(nimbus)
+ MCFG_SCREEN_VBLANK_STATIC(nimbus)
+
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_SCANLINE)
+
+ MCFG_PALETTE_LENGTH(SCREEN_NO_COLOURS * 3)
+ MCFG_PALETTE_INIT( nimbus )
+
+ MCFG_SCREEN_SIZE(650, 260)
+ MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 249)
+
+ MCFG_VIDEO_START(nimbus)
+ MCFG_VIDEO_RESET(nimbus)
+
+
+ /* Backing storage */
+ MCFG_WD2793_ADD(FDC_TAG, nimbus_wd17xx_interface )
+ MCFG_LEGACY_FLOPPY_4_DRIVES_ADD(nimbus_floppy_interface)
+
+ MCFG_DEVICE_ADD(HARDDISK0_TAG, SCSIHD, 0)
+ MCFG_DEVICE_ADD(HARDDISK1_TAG, SCSIHD, 0)
+ MCFG_DEVICE_ADD(HARDDISK2_TAG, SCSIHD, 0)
+ MCFG_DEVICE_ADD(HARDDISK3_TAG, SCSIHD, 0)
+ MCFG_SCSIBUS_ADD(SCSIBUS_TAG, scsibus_config)
+
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("1536K")
+ MCFG_RAM_EXTRA_OPTIONS("128K,256K,384K,512K,640K,1024K")
+
+ /* Peripheral chips */
+ MCFG_Z80SIO_ADD(Z80SIO_TAG, 4000000, nimbus_sio_intf)
+
+ MCFG_ER59256_ADD(ER59256_TAG)
+
+ MCFG_VIA6522_ADD(VIA_TAG, 1000000, nimbus_via)
+ MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, nimbus_centronics_config)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO(MONO_TAG)
+ MCFG_SOUND_ADD(AY8910_TAG, AY8910, 2000000)
+ MCFG_SOUND_CONFIG(nimbus_ay8910_interface)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS,MONO_TAG, 0.75)
+
+ MCFG_SOUND_ADD(MSM5205_TAG, MSM5205, 384000)
+ MCFG_SOUND_CONFIG(msm5205_config)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, MONO_TAG, 0.75)
+
+
+MACHINE_CONFIG_END
+
+
+ROM_START( nimbus )
+ ROM_REGION( 0x100000, MAINCPU_TAG, 0 )
+
+ ROM_SYSTEM_BIOS(0, "v131a", "Nimbus BIOS v1.31a (1986-06-18)")
+ ROMX_LOAD("sys1-1.31a-16128-1986-06-18.rom", 0xf0001, 0x8000, CRC(6416eb05) SHA1(1b640163a7efbc24381c7b24976a8609c066959b),ROM_SKIP(1) | ROM_BIOS(1) )
+ ROMX_LOAD("sys2-1.31a-16129-1986-06-18.rom", 0xf0000, 0x8000, CRC(b224359d) SHA1(456bbe37afcd4429cca76ba2d6bd534dfda3fc9c),ROM_SKIP(1) | ROM_BIOS(1) )
+
+ ROM_SYSTEM_BIOS(1, "v132f", "Nimbus BIOS v1.32f (1989-10-20)")
+ ROMX_LOAD("sys-1-1.32f-22779-1989-10-20.rom", 0xf0001, 0x8000, CRC(786c31e8) SHA1(da7f828f7f96087518bea1a3d89fee59b283b4ba),ROM_SKIP(1) | ROM_BIOS(2) )
+ ROMX_LOAD("sys-2-1.32f-22779-1989-10-20.rom", 0xf0000, 0x8000, CRC(0be3db64) SHA1(af806405ec6fbc20385705f90d5059a47de17b08),ROM_SKIP(1) | ROM_BIOS(2) )
+
+ ROM_SYSTEM_BIOS(2, "v140d", "Nimbus BIOS v1.40d (1990-xx-xx)")
+ ROMX_LOAD("sys-1-1.40d.rom", 0xf0001, 0x8000, CRC(b8d3dc0b) SHA1(82e0dcdc6c7a83339af68d6cb61211fcb14bed88),ROM_SKIP(1) | ROM_BIOS(3) )
+ ROMX_LOAD("sys-2-1.40d.rom", 0xf0000, 0x8000, CRC(b0826b0b) SHA1(3baa369a0e7ef138ca29aae0ee8a89ab670a02b9),ROM_SKIP(1) | ROM_BIOS(3) )
+
+ ROM_REGION( 0x4000, IOCPU_TAG, 0 )
+ ROM_LOAD("hexec-v1.02u-13488-1985-10-29.rom", 0x0000, 0x1000, CRC(75c6adfd) SHA1(0f11e0b7386c6368d20e1fc7a6196d670f924825))
+ROM_END
+
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1986, nimbus, 0, 0, nimbus, nimbus, driver_device, 0, "Research Machines", "Nimbus", 0)