// license:GPL-2.0+
// copyright-holders:Peter Trauner
/******************************************************************************
 sharp pocket computers
 pc1401/pc1403
 PeT mess@utanet.at May 2000
******************************************************************************/

#include "emu.h"
#include "cpu/sc61860/sc61860.h"

#include "includes/pocketc.h"
#include "includes/pc1401.h"
#include "includes/pc1251.h"
#include "includes/pc1350.h"
#include "includes/pc1403.h"
#include "machine/ram.h"

/* pc1430 no peek poke operations! */

/* pc1280?? */

/* pc126x
   port
   1 ?
   2 +6v
   3 gnd
   4 f0
   5 f1
   6 load
   7 save
   8 ib7
   9 ib6
  10 ib5
  11 ib4 */

/* pc1350 other keyboard,
   f2 instead f0 at port
   port
   1 ?
   2 +6v
   3 gnd
   4 f2
   5 f1
   6 load
   7 save
   8 ib7
   9 ib6
  10 ib5
  11 ib4
*/

/* similar computers
   pc1260/1261
   pc1402/1403
   pc1421 */
/* pc140x
   a,b0..b5 keyboard matrix
   b0 off key
   c0 display on
   c1 counter reset
   c2 cpu halt
   c3 computer off
   c4 beeper frequency (1 4kHz, 0 2kHz), or (c5=0) membran pos1/pos2
   c5 beeper on
   c6 beeper steuerung

   port
   1 ?
   2 +6v
   3 gnd
   4 f0
   5 f1
   6 load
   7 save
   8 ib7
   9 ib6
  10 ?
  11 ?
*/

/* special keys
   red c-ce and reset; warm boot, program NOT lost*/

static ADDRESS_MAP_START( pc1401_mem , AS_PROGRAM, 8, pc1401_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x3800, 0x47ff) AM_RAM
	AM_RANGE( 0x6000, 0x67ff) AM_READWRITE(pc1401_lcd_read, pc1401_lcd_write ) AM_MIRROR(0x1000)
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1402_mem , AS_PROGRAM, 8, pc1401_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x2000, 0x47ff) AM_RAM
	AM_RANGE( 0x6000, 0x67ff) AM_READWRITE(pc1401_lcd_read, pc1401_lcd_write ) AM_MIRROR(0x1000)
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1250_mem , AS_PROGRAM, 8, pc1251_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x4000, 0x7fff) AM_ROM
	AM_RANGE( 0xc000, 0xc7ff) AM_RAM // 2KB RAM
	AM_RANGE( 0xf800, 0xf8ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1251_mem , AS_PROGRAM, 8, pc1251_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x4000, 0x7fff) AM_ROM
	AM_RANGE( 0xb800, 0xc7ff) AM_RAM // 4KB RAM
	AM_RANGE( 0xf800, 0xf8ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1255_mem , AS_PROGRAM, 8, pc1251_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x4000, 0x7fff) AM_ROM
	AM_RANGE( 0xa000, 0xc7ff) AM_RAM // 10KB RAM
	AM_RANGE( 0xf800, 0xf8ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1260_mem , AS_PROGRAM, 8, pc1251_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x2000, 0x20ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
	//AM_RANGE( 0x2800, 0x28ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
	AM_RANGE( 0x5800, 0x67ff) AM_RAM // 4KB RAM
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1261_mem , AS_PROGRAM, 8, pc1251_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x2000, 0x20ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
	//AM_RANGE( 0x2800, 0x28ff) AM_READWRITE(pc1251_lcd_read, pc1251_lcd_write)
	AM_RANGE( 0x4000, 0x67ff) AM_RAM // 10KB RAM
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END


static ADDRESS_MAP_START( pc1350_mem , AS_PROGRAM, 8, pc1350_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x7000, 0x7eff) AM_READWRITE(pc1350_lcd_read, pc1350_lcd_write )
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1403_mem , AS_PROGRAM, 8, pc1403_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x3000, 0x30bf) AM_READWRITE(pc1403_lcd_read, pc1403_lcd_write )
	AM_RANGE( 0x3800, 0x3fff) AM_READWRITE(pc1403_asic_read, pc1403_asic_write )
	AM_RANGE( 0x4000, 0x7fff) AM_ROMBANK("bank1")
	AM_RANGE( 0xe000, 0xffff) AM_RAM
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1403h_mem , AS_PROGRAM, 8, pc1403_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x3000, 0x30bf) AM_READWRITE(pc1403_lcd_read, pc1403_lcd_write )
	AM_RANGE( 0x3800, 0x3fff) AM_READWRITE(pc1403_asic_read, pc1403_asic_write )
	AM_RANGE( 0x4000, 0x7fff) AM_ROMBANK("bank1")
	AM_RANGE( 0x8000, 0xffff) AM_RAM
ADDRESS_MAP_END


#if 0
static ADDRESS_MAP_START( pc1421_readmem , AS_PROGRAM, 8, pc1403_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x3800, 0x47ff) AM_RAM
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( pc1421_writemem , AS_PROGRAM, 8, pc1403_state )
	AM_RANGE( 0x0000, 0x1fff) AM_ROM
	AM_RANGE( 0x2000, 0x37ff) AM_RAM
	AM_RANGE( 0x3800, 0x47ff) AM_RAM
	AM_RANGE( 0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
#endif


/* 2008-05 FP: the following input ports are based on the way ports are read, but I would like
   to have confirmation from technical docs before considering these correct.
    If they need to be changed, you must also update the clickable artwork.
*/

static INPUT_PORTS_START( pc1401 )
	PORT_START("KEY0")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+/-   y'") PORT_CODE(KEYCODE_NUMLOCK)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8     Sy") PORT_CODE(KEYCODE_8_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2     a") PORT_CODE(KEYCODE_2_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5     Sx") PORT_CODE(KEYCODE_5_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CAL") PORT_CODE(KEYCODE_F1)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q     !") PORT_CODE(KEYCODE_Q)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A     INPUT") PORT_CODE(KEYCODE_A)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z     PRINT") PORT_CODE(KEYCODE_Z)

	PORT_START("KEY1")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".     DRG") PORT_CODE(KEYCODE_DEL_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9     sigmay") PORT_CODE(KEYCODE_9_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3     b") PORT_CODE(KEYCODE_3_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6     sigmax") PORT_CODE(KEYCODE_6_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BASIC") PORT_CODE(KEYCODE_F2)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W     \"") PORT_CODE(KEYCODE_W)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S     IF") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X     USING") PORT_CODE(KEYCODE_X)

	PORT_START("KEY2")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+     ^") PORT_CODE(KEYCODE_PLUS_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-     >") PORT_CODE(KEYCODE_MINUS_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("*     <") PORT_CODE(KEYCODE_ASTERISK)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEF") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E     #") PORT_CODE(KEYCODE_E)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D     THEN") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C     GOSUB") PORT_CODE(KEYCODE_C)

	PORT_START("KEY3")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(")     n!") PORT_CODE(KEYCODE_9)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(     ->xy") PORT_CODE(KEYCODE_8)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("sqr   tri%   D")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("sqrt  3root  C")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("y^x   xROOTy B")
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("EXP   Pi     A")
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X->M  Sum y  Sum y^2")
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_ENTER_PAD)

	PORT_START("KEY4")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("chnge STAT")
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1/x   ->r theta")
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LOG   10^x   F")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LN    e^x    E")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("->DEG ->D.MS")
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("->HEX ->DEC")
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M+    DATA   CD")

	PORT_START("KEY5")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C-CE  CA") PORT_CODE(KEYCODE_ESC)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F<>E  TAB")
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("TAN   TAN^-1")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("COS   COS^-1")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SIN   SIN^-1")
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("HYP   ARCHYP")
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RM    (x,y)")

	PORT_START("KEY6")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7     y mean") PORT_CODE(KEYCODE_7_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1     r") PORT_CODE(KEYCODE_1_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4     x mean") PORT_CODE(KEYCODE_4_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("down") PORT_CODE(KEYCODE_DOWN)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R     $") PORT_CODE(KEYCODE_R)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F     GOTO") PORT_CODE(KEYCODE_F)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V     RETURN") PORT_CODE(KEYCODE_V)

	PORT_START("KEY7")
	PORT_BIT(0x03, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(",     RUN") PORT_CODE(KEYCODE_COMMA)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P     ;") PORT_CODE(KEYCODE_P)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("up") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T     %") PORT_CODE(KEYCODE_T)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G     FOR") PORT_CODE(KEYCODE_G)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B     DIM") PORT_CODE(KEYCODE_B)

	PORT_START("KEY8")
	PORT_BIT(0x07, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O     :") PORT_CODE(KEYCODE_O)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("left  DEL") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y     &") PORT_CODE(KEYCODE_Y)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H     TO") PORT_CODE(KEYCODE_H)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N     END") PORT_CODE(KEYCODE_N)

	PORT_START("KEY9")
	PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("right INS") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U     ?") PORT_CODE(KEYCODE_U)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J     STEP") PORT_CODE(KEYCODE_J)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M     CSAVE") PORT_CODE(KEYCODE_M)

	PORT_START("KEY10")
	PORT_BIT(0x1f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I     @") PORT_CODE(KEYCODE_I)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K     NEXT") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SPC   CLOAD") PORT_CODE(KEYCODE_SPACE)

	PORT_START("KEY11")
	PORT_BIT(0x3f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L     LIST") PORT_CODE(KEYCODE_L)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER N<>NP") PORT_CODE(KEYCODE_ENTER)

	PORT_START("KEY12")
	PORT_BIT(0x7f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0     x'") PORT_CODE(KEYCODE_0_PAD)

	PORT_START("EXTRA")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BRK   ON") PORT_CODE(KEYCODE_F4)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_F3)
	PORT_DIPNAME( 0x04, 0x00,  "Power")
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW0")
	PORT_DIPNAME( 0x07, 0x01, "Contrast")
	PORT_DIPSETTING(    0x00, "0/Low" )
	PORT_DIPSETTING(    0x01, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x04, "4" )
	PORT_DIPSETTING(    0x05, "5" )
	PORT_DIPSETTING(    0x06, "6" )
	PORT_DIPSETTING(    0x07, "7/High" )
INPUT_PORTS_END

static INPUT_PORTS_START( pc1403 )
	PORT_START("KEY0")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7     y mean") PORT_CODE(KEYCODE_7_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8     Sy") PORT_CODE(KEYCODE_8_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9     sigmay") PORT_CODE(KEYCODE_9_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X->M  Sum y  Sum y^2")
	PORT_BIT(0xe0, IP_ACTIVE_HIGH, IPT_UNUSED)

	PORT_START("KEY1")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4     x mean") PORT_CODE(KEYCODE_4_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5     Sx") PORT_CODE(KEYCODE_5_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6     sigmax") PORT_CODE(KEYCODE_6_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("*     <") PORT_CODE(KEYCODE_ASTERISK)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RM    (x,y)")
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEF") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SML") PORT_CODE(KEYCODE_CAPSLOCK)

	PORT_START("KEY2")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1     r") PORT_CODE(KEYCODE_1_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2     a") PORT_CODE(KEYCODE_2_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3     b") PORT_CODE(KEYCODE_3_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-     >") PORT_CODE(KEYCODE_MINUS_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M+    DATA   CD")
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q     !") PORT_CODE(KEYCODE_Q)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A     INPUT") PORT_CODE(KEYCODE_A)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z     PRINT") PORT_CODE(KEYCODE_Z)

	PORT_START("KEY3")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0     x'") PORT_CODE(KEYCODE_0_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+/-   y'") PORT_CODE(KEYCODE_NUMLOCK)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".     DRG") PORT_CODE(KEYCODE_DEL_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+     ^") PORT_CODE(KEYCODE_PLUS_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_ENTER_PAD)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W     \"") PORT_CODE(KEYCODE_W)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S     IF") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X     USING") PORT_CODE(KEYCODE_X)

	PORT_START("KEY4")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("HYP   ARCHYP")
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SIN   SIN^-1")
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("COS   COS^-1")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("TAN   TAN^-1")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)      /* toggles indicator 3c bit 0 japan? */
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E     #") PORT_CODE(KEYCODE_E)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D     THEN") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C     GOSUB") PORT_CODE(KEYCODE_C)

	PORT_START("KEY5")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("->HEX ->DEC")
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("->DEG ->D.MS")
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LN    e^x    E")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LOG   10^x   F")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)      /* tilde? */
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R     $") PORT_CODE(KEYCODE_R)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F     GOTO") PORT_CODE(KEYCODE_F)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V     RETURN") PORT_CODE(KEYCODE_V)

	PORT_START("KEY6")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("EXP   Pi     A")
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("y^x   xROOTy B")
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("sqrt  3root  C")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("sqr   tri%   D")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)      /* yen? */
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T     %") PORT_CODE(KEYCODE_T)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G     FOR") PORT_CODE(KEYCODE_G)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B     DIM") PORT_CODE(KEYCODE_B)

	PORT_START("KEY7")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C-CE  CA") PORT_CODE(KEYCODE_ESC)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("chnge STAT")
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F<>E  TAB")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y     &") PORT_CODE(KEYCODE_Y)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H     TO") PORT_CODE(KEYCODE_H)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N     END") PORT_CODE(KEYCODE_N)

	PORT_START("KEY8")
	PORT_BIT(0x03, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(")     n!") PORT_CODE(KEYCODE_9)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1/x   ->r theta")
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U     ?") PORT_CODE(KEYCODE_U)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J     STEP") PORT_CODE(KEYCODE_J)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M     CSAVE") PORT_CODE(KEYCODE_M)

	PORT_START("KEY9")
	PORT_BIT(0x07, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(     ->x y") PORT_CODE(KEYCODE_8)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Left  DEL") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I     @") PORT_CODE(KEYCODE_I)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K     NEXT") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SPC   CLOAD") PORT_CODE(KEYCODE_SPACE)

	PORT_START("KEY10")
	PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Right INS") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O     :") PORT_CODE(KEYCODE_O)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L     LIST") PORT_CODE(KEYCODE_L)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER N<>NP") PORT_CODE(KEYCODE_ENTER)

	PORT_START("KEY11")
	PORT_BIT(0x1f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P     ;") PORT_CODE(KEYCODE_P)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(",     RUN") PORT_CODE(KEYCODE_COMMA)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BASIC") PORT_CODE(KEYCODE_F2)

	PORT_START("KEY12")
	PORT_BIT(0x3f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)      /* shift lock */
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CAL") PORT_CODE(KEYCODE_F1)

	PORT_START("KEY13")
	PORT_BIT(0x7f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_DIPNAME( 0x80, 0x00,  "Power")
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("EXTRA")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BRK   ON") PORT_CODE(KEYCODE_F4)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_F3)

	PORT_START("DSW0")
	// normally no contrast control!
	PORT_DIPNAME( 0x07, 0x01, "Contrast")
	PORT_DIPSETTING(    0x00, "0/Low" )
	PORT_DIPSETTING(    0x01, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x04, "4" )
	PORT_DIPSETTING(    0x05, "5" )
	PORT_DIPSETTING(    0x06, "6" )
	PORT_DIPSETTING(    0x07, "7/High" )
INPUT_PORTS_END

static INPUT_PORTS_START( pc1251 )
	PORT_START("KEY0")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-     >") PORT_CODE(KEYCODE_MINUS) PORT_CODE(KEYCODE_MINUS_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CL    CA") PORT_CODE(KEYCODE_ESC)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("*     <") PORT_CODE(KEYCODE_ASTERISK)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/     ^") PORT_CODE(KEYCODE_SLASH) PORT_CODE(KEYCODE_SLASH_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DOWN  (") PORT_CODE(KEYCODE_DOWN)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E     #") PORT_CODE(KEYCODE_E)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C)

	PORT_START("KEY1")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+     Exp") PORT_CODE(KEYCODE_PLUS_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3     @") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W     \"") PORT_CODE(KEYCODE_W)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X)

	PORT_START("KEY2")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".     SquareRoot") PORT_CODE(KEYCODE_STOP) PORT_CODE(KEYCODE_DEL_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEF") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q     !") PORT_CODE(KEYCODE_Q)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z)

	PORT_START("KEY3")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("UP    )") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R     $") PORT_CODE(KEYCODE_R)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V)

	PORT_START("KEY4")
	PORT_BIT(0x03, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_QUOTE)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P     ;") PORT_CODE(KEYCODE_P)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LEFT  DEL") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T     %") PORT_CODE(KEYCODE_T)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B)

	PORT_START("KEY5")
	PORT_BIT(0x07, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O     ,") PORT_CODE(KEYCODE_O)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RIGHT INS") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y     &") PORT_CODE(KEYCODE_Y)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N)

	PORT_START("KEY6")
	PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)  /* down? */
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U     ?") PORT_CODE(KEYCODE_U)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M)

	PORT_START("KEY7")
	PORT_BIT(0x1f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I     :") PORT_CODE(KEYCODE_I)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("      SPC") PORT_CODE(KEYCODE_SPACE)

	PORT_START("KEY8")
	PORT_BIT(0x3f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER N<>NP") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD)

	PORT_START("KEY9")
	PORT_BIT(0x7f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0     Pi") PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD)

	PORT_START("EXTRA")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BRK   ON") PORT_CODE(KEYCODE_F4)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_F3)

	PORT_START("MODE")
	PORT_DIPNAME( 0x07, 0x00, "Mode")
	PORT_DIPSETTING(    0x04, DEF_STR(Off) )
	PORT_DIPSETTING(    0x00, "On/RUN" )
	PORT_DIPSETTING(    0x02, "On/PRO" )
	PORT_DIPSETTING(    0x01, "On/RSV" )

	PORT_START("DSW0")
	PORT_DIPNAME( 0x07, 0x01, "Contrast")
	PORT_DIPSETTING(    0x00, "0/Low" )
	PORT_DIPSETTING(    0x01, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x04, "4" )
	PORT_DIPSETTING(    0x05, "5" )
	PORT_DIPSETTING(    0x06, "6" )
	PORT_DIPSETTING(    0x07, "7/High" )
INPUT_PORTS_END

static INPUT_PORTS_START( pc1350 )
	PORT_START("KEY0")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(")     >") PORT_CODE(KEYCODE_CLOSEBRACE)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(":") PORT_CODE(KEYCODE_COLON)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_QUOTE)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SML") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEF") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_RSHIFT)   /* are both Shifts connected here? or is Left Shift missing */

	PORT_START("KEY1")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(     <") PORT_CODE(KEYCODE_OPENBRACE)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CODE(KEYCODE_SLASH_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("*") PORT_CODE(KEYCODE_ASTERISK)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-     ^") PORT_CODE(KEYCODE_MINUS) PORT_CODE(KEYCODE_MINUS_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q     !") PORT_CODE(KEYCODE_Q)

	PORT_START("KEY2")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+") PORT_CODE(KEYCODE_PLUS_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W     \"") PORT_CODE(KEYCODE_W)

	PORT_START("KEY3")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E     #") PORT_CODE(KEYCODE_E)

	PORT_START("KEY4")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R     $") PORT_CODE(KEYCODE_R)

	PORT_START("KEY5")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("UP") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T     %") PORT_CODE(KEYCODE_T)

	PORT_START("KEY6")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED)      /* 1 ?*/
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("INS") PORT_CODE(KEYCODE_INSERT)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y     &") PORT_CODE(KEYCODE_Y)

	PORT_START("KEY7")
	PORT_BIT(0x03, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED)      /* 2 ?*/
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("MODE") PORT_CODE(KEYCODE_F1)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U     ?") PORT_CODE(KEYCODE_U)

	PORT_START("KEY8")
	PORT_BIT(0x07, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CLS   CA") PORT_CODE(KEYCODE_ESC)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SPC") PORT_CODE(KEYCODE_SPACE)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I     Pi") PORT_CODE(KEYCODE_I)

	PORT_START("KEY9")
	PORT_BIT(0x0f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER P<->NP") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O     Squareroot") PORT_CODE(KEYCODE_O)

	PORT_START("KEY10")
	PORT_BIT(0x1f, IP_ACTIVE_HIGH, IPT_UNUSED)
	PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("=") PORT_CODE(KEYCODE_EQUALS)
	PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P     Alpha") PORT_CODE(KEYCODE_P)

	PORT_START("KEY11")
	PORT_DIPNAME( 0xc0, 0x00, "Power")
	PORT_DIPSETTING(    0xc0, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("EXTRA")
	PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BRK   ON") PORT_CODE(KEYCODE_F4)
	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) // temporarily here, but not read...

	PORT_START("DSW0")
	PORT_DIPNAME( 0x07, 0x07, "Contrast")
	PORT_DIPSETTING(    0x00, "0/Low" )
	PORT_DIPSETTING(    0x01, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x04, "4" )
	PORT_DIPSETTING(    0x05, "5" )
	PORT_DIPSETTING(    0x06, "6" )
	PORT_DIPSETTING(    0x07, "7/High" )
INPUT_PORTS_END


static const gfx_layout pc1401_charlayout =
{
	2,21,
	128,                                    /* 256 characters */
	1,                      /* 1 bits per pixel */
	{ 0,0 },                  /* no bitplanes; 1 bit per pixel */
	/* x offsets */
	{ 0,0 },
	/* y offsets */
	{
		7, 7, 7,
		6, 6, 6,
		5, 5, 5,
		4, 4, 4,
		3, 3, 3,
		2, 2, 2,
		1, 1, 1
	},
	1*8
};

static const gfx_layout pc1251_charlayout =
{
	3,21,
	128,                                    /* 256 characters */
	1,                      /* 1 bits per pixel */
	{ 0, },                  /* no bitplanes; 1 bit per pixel */
	/* x offsets */
	{ 0,0,0 },
	/* y offsets */
	{
		7, 7, 7,
		6, 6, 6,
		5, 5, 5,
		4, 4, 4,
		3, 3, 3,
		2, 2, 2,
		1, 1, 1
	},
	1*8
};

static GFXDECODE_START( pc1401 )
	GFXDECODE_ENTRY( "gfx1", 0x0000, pc1401_charlayout, 0, 8 )
GFXDECODE_END

static GFXDECODE_START( pc1251 )
	GFXDECODE_ENTRY( "gfx1", 0x0000, pc1251_charlayout, 0, 8 )
GFXDECODE_END

static MACHINE_CONFIG_START( pocketc,  pocketc_state)
	MCFG_QUANTUM_TIME(attotime::from_hz(60))

	MCFG_NVRAM_ADD_0FILL("cpu_nvram")
	MCFG_NVRAM_ADD_0FILL("ram_nvram")

	/*
	   aim: show sharp with keyboard
	   resolution depends on the dots of the lcd
	   (lcd dot displayed as 2x3 pixel)
	   it seems to have 3/4 ratio in the real pc1401 */
	/* video hardware */
	MCFG_SCREEN_ADD("screen", LCD)
	MCFG_SCREEN_REFRESH_RATE(20)    /* very early and slow lcd */
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
	MCFG_SCREEN_SIZE(594, 273)
	MCFG_SCREEN_VISIBLE_AREA(0, 594-1, 0, 273-1)
//  MCFG_SCREEN_SIZE(640, 273)
//  MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 273-1)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_GFXDECODE_ADD("gfxdecode", "palette", pc1401 )
	MCFG_PALETTE_ADD("palette", 8*2)
	MCFG_PALETTE_INDIRECT_ENTRIES(6)
	MCFG_PALETTE_INIT_OWNER( pocketc_state, pocketc )

	/* sound hardware */
	/*MCFG_SOUND_ADD("dac", DAC, pocketc_sound_interface)*/
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED_CLASS( pc1401, pocketc, pc1401_state )
	MCFG_CPU_ADD("maincpu", SC61860, 192000)        /* 7.8336 MHz */
	MCFG_CPU_PROGRAM_MAP(pc1401_mem)
	MCFG_SC61860_READ_RESET_HANDLER(READLINE(pc1401_state,pc1401_reset))
	MCFG_SC61860_READ_BRK_HANDLER(READLINE(pc1401_state,pc1401_brk))
	MCFG_SC61860_READ_X_HANDLER(NOOP)
	MCFG_SC61860_READ_A_HANDLER(READ8(pc1401_state,pc1401_ina))
	MCFG_SC61860_WRITE_A_HANDLER(WRITE8(pc1401_state,pc1401_outa))
	MCFG_SC61860_READ_B_HANDLER(READ8(pc1401_state,pc1401_inb))
	MCFG_SC61860_WRITE_B_HANDLER(WRITE8(pc1401_state,pc1401_outb))
	MCFG_SC61860_WRITE_C_HANDLER(WRITE8(pc1401_state,pc1401_outc))

	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_UPDATE_DRIVER(pc1401_state, screen_update_pc1401)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( pc1402, pc1401 )
	MCFG_CPU_MODIFY( "maincpu" )
	MCFG_CPU_PROGRAM_MAP( pc1402_mem)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED_CLASS( pc1250, pocketc, pc1251_state )
	MCFG_CPU_ADD("maincpu", SC61860, 192000)        /* 7.8336 MHz */
	MCFG_CPU_PROGRAM_MAP( pc1250_mem)
	MCFG_SC61860_READ_RESET_HANDLER(NOOP)
	MCFG_SC61860_READ_BRK_HANDLER(READLINE(pc1251_state,pc1251_brk))
	MCFG_SC61860_READ_X_HANDLER(NOOP)
	MCFG_SC61860_READ_A_HANDLER(READ8(pc1251_state,pc1251_ina))
	MCFG_SC61860_WRITE_A_HANDLER(WRITE8(pc1251_state,pc1251_outa))
	MCFG_SC61860_READ_B_HANDLER(READ8(pc1251_state,pc1251_inb))
	MCFG_SC61860_WRITE_B_HANDLER(WRITE8(pc1251_state,pc1251_outb))
	MCFG_SC61860_WRITE_C_HANDLER(WRITE8(pc1251_state,pc1251_outc))

	/* video hardware */
	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_SIZE(608, 300)
	MCFG_SCREEN_VISIBLE_AREA(0, 608-1, 0, 300-1)
	MCFG_SCREEN_UPDATE_DRIVER(pc1251_state, screen_update_pc1251)
	MCFG_GFXDECODE_MODIFY("gfxdecode", pc1251 )
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( pc1251, pc1250 )
	MCFG_CPU_MODIFY( "maincpu" )
	MCFG_CPU_PROGRAM_MAP( pc1251_mem)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( pc1255, pc1250 )
	MCFG_CPU_MODIFY( "maincpu" )
	MCFG_CPU_PROGRAM_MAP( pc1255_mem)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( pc1260, pc1250 )
	MCFG_CPU_MODIFY( "maincpu" )
	MCFG_CPU_PROGRAM_MAP( pc1260_mem)

	MCFG_MACHINE_START_OVERRIDE(pc1251_state, pc1260 )
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( pc1261, pc1260 )
	MCFG_CPU_MODIFY( "maincpu" )
	MCFG_CPU_PROGRAM_MAP( pc1261_mem)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED_CLASS( pc1350, pocketc, pc1350_state )
	MCFG_CPU_ADD("maincpu", SC61860, 192000)        /* 7.8336 MHz */
	MCFG_CPU_PROGRAM_MAP( pc1350_mem)
	MCFG_SC61860_READ_RESET_HANDLER(NOOP)
	MCFG_SC61860_READ_BRK_HANDLER(READLINE(pc1350_state,pc1350_brk))
	MCFG_SC61860_READ_X_HANDLER(NOOP)
	MCFG_SC61860_READ_A_HANDLER(READ8(pc1350_state,pc1350_ina))
	MCFG_SC61860_WRITE_A_HANDLER(WRITE8(pc1350_state,pc1350_outa))
	MCFG_SC61860_READ_B_HANDLER(READ8(pc1350_state,pc1350_inb))
	MCFG_SC61860_WRITE_B_HANDLER(WRITE8(pc1350_state,pc1350_outb))
	MCFG_SC61860_WRITE_C_HANDLER(WRITE8(pc1350_state,pc1350_outc))

	/*
	   aim: show sharp with keyboard
	   resolution depends on the dots of the lcd
	   (lcd dot displayed as 2x2 pixel) */
	/* video hardware */
	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_SIZE(640, 252)
	MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 252-1)
	MCFG_SCREEN_UPDATE_DRIVER(pc1350_state, screen_update_pc1350)

	/* internal ram */
	MCFG_RAM_ADD(RAM_TAG)
	MCFG_RAM_DEFAULT_SIZE("4K")
	MCFG_RAM_EXTRA_OPTIONS("12K,20K")
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED_CLASS( pc1403, pocketc, pc1403_state )
	MCFG_CPU_ADD( "maincpu", SC61860, 256000 )
	MCFG_CPU_PROGRAM_MAP( pc1403_mem)
	MCFG_SC61860_READ_RESET_HANDLER(NOOP)
	MCFG_SC61860_READ_BRK_HANDLER(READLINE(pc1403_state,pc1403_brk))
	MCFG_SC61860_READ_X_HANDLER(NOOP)
	MCFG_SC61860_READ_A_HANDLER(READ8(pc1403_state,pc1403_ina))
	MCFG_SC61860_WRITE_A_HANDLER(WRITE8(pc1403_state,pc1403_outa))
	MCFG_SC61860_READ_B_HANDLER(NOOP)
	MCFG_SC61860_WRITE_B_HANDLER(NOOP)
	MCFG_SC61860_WRITE_C_HANDLER(WRITE8(pc1403_state,pc1403_outc))

	/*
	   aim: show sharp with keyboard
	   resolution depends on the dots of the lcd
	   (lcd dot displayed as 2x2 pixel) */
	/* video hardware */
	MCFG_SCREEN_MODIFY("screen")
	MCFG_SCREEN_SIZE(848, 320)
	MCFG_SCREEN_VISIBLE_AREA(0, 848-1, 0, 320-1)
//  MCFG_SCREEN_SIZE(848, 361)
//  MCFG_SCREEN_VISIBLE_AREA(0, 848-1, 0, 361-1)
	MCFG_SCREEN_UPDATE_DRIVER(pc1403_state, screen_update_pc1403)
MACHINE_CONFIG_END

static MACHINE_CONFIG_DERIVED( pc1403h, pc1403 )
	MCFG_CPU_MODIFY( "maincpu" )
	MCFG_CPU_PROGRAM_MAP( pc1403h_mem)
MACHINE_CONFIG_END


ROM_START(pc1401)
	ROM_REGION(0x10000,"maincpu",0)
	/* SC61860A08 5H 13LD cpu with integrated rom*/
	ROM_LOAD("sc61860.a08", 0x0000, 0x2000, CRC(44bee438) SHA1(c5106bc8d848be1b49494ace30a26eeb1cc5e504))
/* 5S1 SC613256 D30
   or SC43536LD 5G 13 (LCD chip?) */
	ROM_LOAD("sc613256.d30", 0x8000, 0x8000, CRC(69b9d587) SHA1(fa0602e7dfee548546f801fb4cca7d73da2d8f18))
	ROM_REGION(0x80,"gfx1",ROMREGION_ERASEFF)
ROM_END

#define rom_pc1402 rom_pc1401

ROM_START(pc1245)
	ROM_REGION(0x10000,"maincpu",0)
	ROM_LOAD( "cpu1245.rom", 0x0000, 0x2000, CRC(e0964069) SHA1(293c57b233d55944b308191fd72ecff81979cda7))
	ROM_LOAD( "bas1245.rom", 0x4000, 0x4000, CRC(f6253a0d) SHA1(bcac9b4f5a88eb952e81b3ee28f922c06bace18e))
	ROM_REGION(0x80,"gfx1",ROMREGION_ERASEFF)
ROM_END

ROM_START(pc1250)
	ROM_REGION(0x10000,"maincpu",0)
	/* sc61860a13 6c 13 ld */
	ROM_LOAD("cpu1250.rom", 0x0000, 0x2000, CRC(f7287aca) SHA1(19bfa778e3e05ea06bdca15cd9dfbba9b971340e))
	ROM_LOAD("bas1250.rom", 0x4000, 0x4000, CRC(93ecb629) SHA1(0fe0ad419053ee7814600b0be320dd2e8eb2ec92))
	ROM_REGION(0x80,"gfx1",ROMREGION_ERASEFF)
ROM_END

#define rom_pc1251 rom_pc1250
#define rom_pc1255 rom_pc1250
#define rom_trs80pc3 rom_pc1250


ROM_START(pc1260)
	ROM_REGION(0x10000,"maincpu",0)
	ROM_LOAD( "cpu1260.rom", 0x0000, 0x2000, CRC(f46d23d3) SHA1(e00c9194570048185ec8358732adeba151c56b33))
	ROM_LOAD( "bas1260.rom", 0x8000, 0x8000, CRC(6c7e017d) SHA1(e2ae717438cea59416b0670e2a53989c147fb362))
	ROM_REGION(0x80,"gfx1",ROMREGION_ERASEFF)
ROM_END

#define rom_pc1261 rom_pc1260

ROM_START(pc1350)
	ROM_REGION(0x10000,"maincpu",0)
	/* sc61860a13 6c 13 ld */
	ROM_LOAD("cpu.rom", 0x0000, 0x2000, CRC(79a924bc) SHA1(2eaef0d53d85863ca70a41c8e1eddc5915136b99))
	ROM_LOAD("basic.rom", 0x8000, 0x8000, CRC(158b28e2) SHA1(b63b37dd510b3c4d9f16d224f87ae2efb3bcc51f))
	ROM_REGION(0x100,"gfx1",ROMREGION_ERASEFF)
ROM_END

ROM_START( pc1360 )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "cpu-1360.rom", 0x0000, 0x2000, CRC(8fc9bf75) SHA1(f803cfecb8179f47031901c4d5bd546ac93118b1))
	ROM_REGION(0x20000,"user1",0)
	ROM_LOAD( "b0-1360.rom", 0x00000, 0x4000, CRC(afe1d3d6) SHA1(7178fd30dcc7f2777f0539897ef7245832f26152))
	ROM_LOAD( "b1-1360.rom", 0x04000, 0x4000, CRC(83f7e4dd) SHA1(ae6d133fdb586df8660dd9315c1fdf80b7b8dd57))
	ROM_LOAD( "b2-1360.rom", 0x08000, 0x4000, CRC(007cf5a6) SHA1(311d3ceaaed61479bdb00d8ade358fd6a99da170))
	ROM_LOAD( "b3-1360.rom", 0x0c000, 0x4000, CRC(4170849f) SHA1(70eeaa29c008131137bd28e4e957694cdf312413))
	ROM_LOAD( "b4-1360.rom", 0x10000, 0x4000, CRC(0d311e21) SHA1(55987b7b00ddc666db30f35cbf23500b49e7ff09))
	ROM_LOAD( "b5-1360.rom", 0x14000, 0x4000, CRC(f945f3f7) SHA1(26116d8277212e14bddb64c531f134fbb5c86f9e))
	ROM_LOAD( "b6-1360.rom", 0x18000, 0x4000, CRC(ae823112) SHA1(9ab458e70752cacfd5d3ed36a8e89f96c63a6f50))
	ROM_LOAD( "b7-1360.rom", 0x1c000, 0x4000, CRC(ba7384b6) SHA1(95396d506f1d71e66c3ae2d47ffb4b6d10b31401))
	ROM_REGION(0x100,"gfx1",ROMREGION_ERASEFF)
ROM_END

ROM_START(pc1403)
	ROM_REGION(0x10000,"maincpu",0)
	ROM_LOAD("introm.bin", 0x0000, 0x2000, CRC(588c500b) SHA1(2fed9ebede27e20a8ee4b4b03b9f8cd7808ada5c))
	ROM_REGION(0x10000,"user1",0)
	ROM_LOAD("extrom08.bin", 0x0000, 0x4000, CRC(1fa65140) SHA1(f22a9f114486f69733fc43dfec26fb210643aeff))
	ROM_LOAD("extrom09.bin", 0x4000, 0x4000, CRC(4a7da6ab) SHA1(b50fe8a4ca821244c119147b3ff04cee0fd6ad5c))
	ROM_LOAD("extrom0a.bin", 0x8000, 0x4000, CRC(9925174f) SHA1(793a79142cd170ed7ac3f7ecb1b6e6f92c8fa4e0))
	ROM_LOAD("extrom0b.bin", 0xc000, 0x4000, CRC(fa5df9ec) SHA1(6ff62c215f510a3a652d61823f54cd4018d6a771))
	ROM_REGION(0x100,"gfx1",ROMREGION_ERASEFF)
ROM_END

#define rom_pc1403h rom_pc1403

// disk drive support
#define io_pc1403 io_pc1401
#define io_pc1403h io_pc1403

/* ROM definition */
ROM_START( pc1450 )
	ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
	ROM_LOAD( "cpu-1450.rom", 0x0000, 0x2000, CRC(dead7be5) SHA1(f55ba8cb823eb16b514032e96d2068d028964c1f))
	ROM_LOAD( "bas-1450.rom", 0x8000, 0x8000, CRC(d207cae9) SHA1(a88ef79bc38ea264165f800e4e386050d4d461b2))
	ROM_REGION(0x100,"gfx1",ROMREGION_ERASEFF)
ROM_END

/*    YEAR  NAME      PARENT    MACHINE   INPUT     INIT      MONITOR   COMPANY   FULLNAME */

/* cpu sc43177, sc43178 (4bit!)
   pc 1211
   clone tandy trs80 pocket computer
   pc1246/pc1247
*/

/* cpu lh5801
   pc1500
   clone tandy pc2 look into drivers/pc1500.c
   pc1600
*/

/*    YEAR  NAME    PARENT  COMPAT   MACHINE INPUT   INIT         COMPANY     FULLNAME */
/* cpu sc61860 */
COMP( 1982, pc1245, 0,  0,  pc1250, pc1251, pc1251_state,   pc1251,  "Sharp", "Pocket Computer 1245", MACHINE_NOT_WORKING  | MACHINE_NO_SOUND )
COMP( 1982, pc1250, 0,  0,  pc1250, pc1251, pc1251_state,   pc1251,  "Sharp", "Pocket Computer 1250", MACHINE_NO_SOUND)
COMP( 1982, pc1251, pc1250, 0,  pc1251, pc1251, pc1251_state,   pc1251,  "Sharp", "Pocket Computer 1251", MACHINE_NO_SOUND)
COMP( 1982, pc1255, pc1250, 0,  pc1255, pc1251, pc1251_state,   pc1251,  "Sharp", "Pocket Computer 1255", MACHINE_NO_SOUND)
COMP( 1983, trs80pc3,   pc1250, 0,  pc1251, pc1251, pc1251_state,   pc1251,  "Tandy Radio Shack", "TRS-80 Pocket Computer PC-3", MACHINE_NO_SOUND)

COMP( 1982, pc1260, 0,  0,  pc1260, pc1251, pc1251_state,   pc1251,  "Sharp", "Pocket Computer 1260", MACHINE_NOT_WORKING  | MACHINE_NO_SOUND )
COMP( 1982, pc1261, pc1260, 0,  pc1261, pc1251, pc1251_state,   pc1251,  "Sharp", "Pocket Computer 1261/1262", MACHINE_NOT_WORKING  | MACHINE_NO_SOUND)

/* pc1261/pc1262 */
COMP( 1984, pc1350, 0,  0,  pc1350, pc1350, driver_device,  0,   "Sharp", "Pocket Computer 1350", MACHINE_NO_SOUND )
COMP( 198?, pc1450, 0,  0,  pc1350, pc1350, driver_device,  0,   "Sharp", "Pocket Computer 1450", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )

COMP( 1983, pc1401, 0,  0,  pc1401, pc1401, pc1401_state,   pc1401, "Sharp", "Pocket Computer 1401", MACHINE_NO_SOUND)
COMP( 1984, pc1402, pc1401, 0,  pc1402, pc1401, pc1401_state,   pc1401,  "Sharp", "Pocket Computer 1402", MACHINE_NO_SOUND)
COMP( 198?, pc1360, pc1401, 0,  pc1401, pc1401, pc1401_state,   pc1401,  "Sharp", "Pocket Computer 1360", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )

/* 72kb rom, 32kb ram, cpu? pc1360 */
COMP( 1986, pc1403, 0,  0,  pc1403, pc1403, pc1403_state,   pc1403,  "Sharp", "Pocket Computer 1403", MACHINE_NOT_WORKING  | MACHINE_NO_SOUND)
COMP( 198?, pc1403h,    pc1403, 0,  pc1403h,pc1403, pc1403_state, pc1403,    "Sharp", "Pocket Computer 1403H", MACHINE_NOT_WORKING  | MACHINE_NO_SOUND)
