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mame/src/mame/drivers/px8.cpp
Robbbert 779b26ebc3 (nw) more cassette wave
2019-06-30 22:48:22 +10:00

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// license:GPL-2.0+
// copyright-holders:Curt Coder,Dirk Best
/***************************************************************************
Epson PX-8
12/05/2009 Skeleton driver.
Seems to be a CP/M computer.
***************************************************************************/
/*
TODO:
- dumps of the internal ROMs
- uPD7508 CPU core
- keyboard
- cassette
- display
- jumpers
- ROM capsule
- uPD7001
- RAM disk (64K/128K RAM, Z80, 4K ROM)
- modem (82C55)
- Multi-Unit (60K RAM, ROM capsule, modem, 82C55)
- attach PF-10s
*/
#include "emu.h"
#include "includes/px8.h"
#include "screen.h"
#include "softlist.h"
#include "speaker.h"
#include "px8.lh"
/***************************************************************************
CONSTANTS
***************************************************************************/
#define XTAL_CR1 XTAL(9'830'400)
#define XTAL_CR2 XTAL(32'768)
/* interrupt sources */
#define INT0_7508 0x01
#define INT1_SERIAL 0x02
#define INT2_RS232 0x04
#define INT3_BARCODE 0x08
#define INT4_FRC 0x10
#define INT5_OPTION 0x20
enum
{
GAH40M_CTLR1 = 0,
GAH40M_CMDR,
GAH40M_CTLR2,
GAH40M_IER = 4
};
enum
{
GAH40M_ICRL_C = 0,
GAH40M_ICRH_C,
GAH40M_ICRL_B,
GAH40M_ICRH_B,
GAH40M_ISR,
GAH40M_STR,
GAH40M_SIOR,
GAH40M_IVR
};
/***************************************************************************
READ/WRITE HANDLERS
***************************************************************************/
/*-------------------------------------------------
bankswitch - memory bankswitching
-------------------------------------------------*/
void px8_state::bankswitch()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
uint8_t *ram = m_ram->pointer();
uint8_t *ipl_rom = memregion(UPD70008_TAG)->base();
if (!m_bank0)
{
/* IPL ROM */
program.install_rom(0x0000, 0x7fff, ipl_rom);
}
else
{
if (m_bk2)
{
/* D-RAM (L) */
program.install_ram(0x0000, 0x7fff, ram);
}
else
{
/* OPTION ROM (L) */
program.unmap_readwrite(0x0000, 0x7fff);
}
}
if (m_bk2)
{
/* D-RAM (H) */
program.install_ram(0x8000, 0xffff, ram + 0x8000);
}
else
{
/* OPTION ROM (H) */
program.unmap_readwrite(0x8000, 0xffff);
}
}
/*-------------------------------------------------
gah40m_r - GAH40M read
-------------------------------------------------*/
READ8_MEMBER( px8_state::gah40m_r )
{
switch (offset)
{
case GAH40M_ICRL_C:
/*
bit signal description
0 ICR0
1 ICR1
2 ICR2
3 ICR3
4 ICR4
5 ICR5
6 ICR6
7 ICR7
*/
break;
case GAH40M_ICRH_C:
/*
bit signal description
0 ICR8
1 ICR9
2 ICR10
3 ICR11
4 ICR12
5 ICR13
6 ICR14
7 ICR15
*/
break;
case GAH40M_ICRL_B:
/*
bit signal description
0 ICR0
1 ICR1
2 ICR2
3 ICR3
4 ICR4
5 ICR5
6 ICR6
7 ICR7
*/
break;
case GAH40M_ICRH_B:
/*
bit signal description
0 ICR8
1 ICR9
2 ICR10
3 ICR11
4 ICR12
5 ICR13
6 ICR14
7 ICR15
*/
break;
case GAH40M_ISR:
/*
bit signal description
0 INT0 7508 interrupt (INT 7508)
1 INT1 82C51 interrupt (INT 82C51)
2 INT2 6303 interrupt (INT 6303)
3 INT3 input capture flag timer (CF)
4 INT4 overflow flag timer (OVF)
5 INT5 external interrupt (INTEXT)
6
7
*/
break;
case GAH40M_STR:
/*
bit signal description
0 _BANK0
1 BRDT barcode reader data timer
2 RDY ready (SIO)
3 RDYSIO SIO ready (SIO)
4
5
6
7
*/
break;
case GAH40M_SIOR:
/*
bit signal description
0 SIO0
1 SIO1
2 SIO2
3 SIO3
4 SIO4
5 SIO5
6 SIO6
7 SIO7
*/
break;
case GAH40M_IVR:
/*
bit description
0 0
1 vect 1
2 vect 2
3 vect 3
4 1
5 1
6 1
7 1
*/
break;
}
return 0xff;
}
/*-------------------------------------------------
gah40m_w - GAH40M write
-------------------------------------------------*/
WRITE8_MEMBER( px8_state::gah40m_w )
{
switch (offset)
{
case GAH40M_CTLR1:
/*
bit signal description
0 _BANK0 bank switching
1 BCK0 barcode mode select 0 timer (down)
2 BCK1 barcode mode select 1 timer (up)
3 SWBCD barcode reader switch timer
4 BRG0 bad rate generator select 0 timer
5 BRG1 bad rate generator select 1 timer
6 BRG2 bad rate generator select 2 timer
7 BRG3 bad rate generator select 3 timer
*/
m_bank0 = BIT(data, 0);
bankswitch();
break;
case GAH40M_CMDR:
/*
bit description
0 set RDYSIOFF (pulse)
1 reset RDYSIOFF (pulse)
2 reset OVF (pulse)
3
4
5
6
7
*/
break;
case GAH40M_CTLR2:
/*
bit signal description
0 LED0 LED
1 LED1 LED
2 LED2 LED
3 SWRS RS-232C switch
4 INHRS inhibit RS-232C
5 AUX external auxiliary output
6
7
*/
output().set_value("led_0", BIT(data, 0));
output().set_value("led_1", BIT(data, 1));
output().set_value("led_2", BIT(data, 2));
break;
case GAH40M_IER:
/*
bit signal description
0 IER0 INT 7508 enable
1 IER1 INT 82C51 enable
2 IER2 INT 6303 enable
3 IER3 INTICF enable
4 IER4 INTOVF enable
5 IER5 INTEXT enable
6
7
*/
m_ier = data;
break;
case GAH40M_SIOR:
/*
bit signal description
0 SIO0
1 SIO1
2 SIO2
3 SIO3
4 SIO4
5 SIO5
6 SIO6
7 SIO7
*/
m_sio = data;
break;
}
}
/*-------------------------------------------------
gah40s_r - GAH40S read
-------------------------------------------------*/
READ8_MEMBER( px8_state::gah40s_r )
{
uint8_t data = 0xff;
switch (offset)
{
case 0: /* counter (upper byte) input */
data = (m_cnt >> 8) & 0x1f;
break;
case 1: /* counter (lower byte) */
data = m_cnt & 0xff;
break;
case 3: /* P-ROM read data */
data = m_prd;
break;
}
return data;
}
/*-------------------------------------------------
gah40s_w - GAH40S write
-------------------------------------------------*/
WRITE8_MEMBER( px8_state::gah40s_w )
{
switch (offset)
{
case 0: /* counter reset */
m_cnt = 0;
break;
case 1: /* command register */
/*
bit signal description
0 SW PR PROM power switch
1 SW MCT microcassette power switch
2 MTA microcassette drive motor control signal A
3 MTB microcassette drive motor control signal B
4 MTC microcassette drive motor control signal C
5
6 _FAST
7 _STOP CNT
*/
m_swpr = BIT(data, 0);
break;
case 2: /* P-ROM address (upper 8 byte) */
m_pra = (data << 8) | (m_pra & 0xff);
m_prd = 0; // TODO read prom!
break;
case 3: /* P-ROM address (lower 8 byte) */
m_pra = (m_pra & 0xff00) | data;
m_prd = 0; // TODO read prom!
break;
}
}
/*-------------------------------------------------
gah40s_ier_w - interrupt enable register write
-------------------------------------------------*/
WRITE8_MEMBER( px8_state::gah40s_ier_w )
{
m_ier = data;
}
/*-------------------------------------------------
krtn_read - read keyboard return
-------------------------------------------------*/
uint8_t px8_state::krtn_read()
{
uint8_t data = 0xff;
switch (m_ksc)
{
case 0: data = ioport("KSC0")->read(); break;
case 1: data = ioport("KSC1")->read(); break;
case 2: data = ioport("KSC2")->read(); break;
case 3: data = ioport("KSC3")->read(); break;
case 4: data = ioport("KSC4")->read(); break;
case 5: data = ioport("KSC5")->read(); break;
case 6: data = ioport("KSC6")->read(); break;
case 7: data = ioport("KSC7")->read(); break;
case 8: data = ioport("KSC8")->read(); break;
case 9: data = ioport("SW4")->read(); break;
}
return data;
}
/*-------------------------------------------------
krtn_0_3_r - keyboard return 0..3 read
-------------------------------------------------*/
READ8_MEMBER( px8_state::krtn_0_3_r )
{
return krtn_read() & 0x0f;
}
/*-------------------------------------------------
krtn_4_7_r - keyboard return 4..7 read
-------------------------------------------------*/
READ8_MEMBER( px8_state::krtn_4_7_r )
{
return krtn_read() >> 4;
}
/*-------------------------------------------------
ksc_w - keyboard scan write
-------------------------------------------------*/
WRITE8_MEMBER( px8_state::ksc_w )
{
m_ksc = data;
}
/***************************************************************************
MEMORY MAPS
***************************************************************************/
/*-------------------------------------------------
ADDRESS_MAP( px8_mem )
-------------------------------------------------*/
void px8_state::px8_mem(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x7fff).bankrw("bank0");
map(0x8000, 0xffff).bankrw("bank1");
}
/*-------------------------------------------------
ADDRESS_MAP( px8_io )
-------------------------------------------------*/
void px8_state::px8_io(address_map &map)
{
map.unmap_value_high();
map.global_mask(0x0f);
map(0x00, 0x07).rw(FUNC(px8_state::gah40m_r), FUNC(px8_state::gah40m_w));
map(0x0c, 0x0d).rw(I8251_TAG, FUNC(i8251_device::read), FUNC(i8251_device::write));
// AM_RANGE(0x0e, 0x0e) AM_DEVREADWRITE(SED1320_TAG, sed1330_device, status_r, data_w)
// AM_RANGE(0x0f, 0x0f) AM_DEVREADWRITE(SED1320_TAG, sed1330_device, data_r, command_w)
}
/*-------------------------------------------------
ADDRESS_MAP( px8_slave_mem )
-------------------------------------------------*/
void px8_state::px8_slave_mem(address_map &map)
{
map.unmap_value_high();
map(0x0020, 0x0023).rw(FUNC(px8_state::gah40s_r), FUNC(px8_state::gah40s_w));
// AM_RANGE(0x0024, 0x0027) AM_DEVREADWRITE_LEGACY(SED1320_TAG, )
map(0x0028, 0x0028).w(FUNC(px8_state::gah40s_ier_w));
map(0x8000, 0x97ff).ram().share("video_ram");
map(0x9800, 0xefff).noprw();
map(0xf000, 0xffff).rom().region(HD6303_TAG, 0); /* internal mask rom */
}
/***************************************************************************
INPUT PORTS
***************************************************************************/
static INPUT_PORTS_START( px8 )
PORT_START("KSC0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SCRN INS") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Left CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Left SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Right CTRL") PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(RCONTROL))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Right SHIFT") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("NUM GRPH") PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(RALT))
PORT_START("KSC1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PAUSE") PORT_CODE(KEYCODE_F2)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HELP") PORT_CODE(KEYCODE_F3)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF1") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F1))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF2") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F2))
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF3") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F3))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF4") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F4))
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("PF5") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F5))
PORT_START("KSC2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("STOP") PORT_CODE(KEYCODE_ESC)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_START("KSC3")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_START("KSC4")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_START("KSC5")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F9) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F10) PORT_CHAR(']') PORT_CHAR('}')
PORT_START("KSC6")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('_')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HOME BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
PORT_START("KSC7")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR(96)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_START("KSC8")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_START("SW4")
PORT_DIPNAME( 0xef, 0x2f, "Character Set" ) PORT_DIPLOCATION("SW4:1,2,3,4,6,7,8")
PORT_DIPSETTING( 0x2f, "ASCII" )
PORT_DIPSETTING( 0x2e, DEF_STR( French ) )
PORT_DIPSETTING( 0x2d, DEF_STR( German ) )
PORT_DIPSETTING( 0x2c, DEF_STR( English ) )
PORT_DIPSETTING( 0x2b, "Danish" )
PORT_DIPSETTING( 0x2a, "Swedish" )
PORT_DIPSETTING( 0x26, "Norwegian" )
PORT_DIPSETTING( 0x29, "Italy" )
PORT_DIPSETTING( 0x28, "Spain" )
PORT_DIPSETTING( 0x60, "HASCI" )
PORT_DIPSETTING( 0x21, "Japanese (Japanese)" )
PORT_DIPSETTING( 0x00, "Japanese (JIS)" )
PORT_DIPSETTING( 0x01, "Japanese (touch 16)" )
PORT_DIPNAME( 0x10, 0x00, "RAM disk check" ) PORT_DIPLOCATION("SW4:5")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x10, DEF_STR( On ) )
INPUT_PORTS_END
/***************************************************************************
VIDEO
***************************************************************************/
void px8_state::px8_palette(palette_device &palette) const
{
palette.set_pen_color(0, 0xa5, 0xad, 0xa5);
palette.set_pen_color(1, 0x31, 0x39, 0x10);
}
uint32_t px8_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
return 0;
}
/*-------------------------------------------------
gfx_layout px8_charlayout
-------------------------------------------------*/
static const gfx_layout px8_charlayout =
{
8, 8, /* 8 x 8 characters */
256, /* 256 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
/* x offsets */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
/* y offsets */
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8 /* every char takes 8 bytes */
};
/*-------------------------------------------------
GFXDECODE( px8 )
-------------------------------------------------*/
static GFXDECODE_START( gfx_px8 )
GFXDECODE_ENTRY( SED1320_TAG, 0x0000, px8_charlayout, 0, 1 )
GFXDECODE_END
/***************************************************************************
MACHINE INITIALIZATION
***************************************************************************/
/*-------------------------------------------------
MACHINE_START( px8 )
-------------------------------------------------*/
void px8_state::machine_start()
{
/* register for state saving */
save_item(NAME(m_ier));
save_item(NAME(m_isr));
save_item(NAME(m_bank0));
save_item(NAME(m_bk2));
save_item(NAME(m_sio));
save_item(NAME(m_ksc));
// not used yet
(void)m_icr;
(void)m_frc;
}
void px8_state::machine_reset()
{
m_bank0 = 0;
m_bk2 = 1;
bankswitch();
}
/***************************************************************************
MACHINE DRIVERS
***************************************************************************/
void px8_state::px8(machine_config &config)
{
/* main cpu (uPD70008) */
Z80(config, m_maincpu, XTAL_CR1 / 4); /* 2.45 MHz */
m_maincpu->set_addrmap(AS_PROGRAM, &px8_state::px8_mem);
m_maincpu->set_addrmap(AS_IO, &px8_state::px8_io);
/* slave cpu (HD6303) */
m6803_cpu_device &slave(M6803(config, HD6303_TAG, XTAL_CR1 / 4)); /* 614 kHz */
slave.set_addrmap(AS_PROGRAM, &px8_state::px8_slave_mem);
slave.set_disable();
/* sub CPU (uPD7508) */
// upd7508_device &sub(UPD7508(config, UPD7508_TAG, 200000)); /* 200 kHz */
// sub.set_addrmap(AS_IO, &px8_state::px8_sub_io);
// sub.set_disable();
/* video hardware */
config.set_default_layout(layout_px8);
screen_device &screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_LCD));
screen.set_refresh_hz(72);
screen.set_screen_update(FUNC(px8_state::screen_update));
screen.set_size(480, 64);
screen.set_visarea(0, 479, 0, 63);
screen.set_palette("palette");
GFXDECODE(config, "gfxdecode", "palette", gfx_px8);
PALETTE(config, "palette", FUNC(px8_state::px8_palette), 2);
/* sound hardware */
SPEAKER(config, "mono").front_center();
WAVE(config, "wave", m_cassette).add_route(0, "mono", 0.05);
/* cartridge */
GENERIC_CARTSLOT(config, "capsule1", generic_plain_slot, "px8_cart", "bin,rom");
GENERIC_CARTSLOT(config, "capsule2", generic_plain_slot, "px8_cart", "bin,rom");
/* devices */
I8251(config, I8251_TAG, 0);
CASSETTE(config, m_cassette);
m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED);
/* internal ram */
RAM(config, RAM_TAG).set_default_size("64K");
// software
SOFTWARE_LIST(config, "cart_list").set_original("px8_cart");
SOFTWARE_LIST(config, "epson_cpm_list").set_original("epson_cpm");
}
/***************************************************************************
ROMS
***************************************************************************/
ROM_START( px8 )
ROM_REGION( 0x10000, UPD70008_TAG, 0 )
ROM_DEFAULT_BIOS("052884")
ROM_SYSTEM_BIOS( 0, "091383", "9/13/83" )
ROMX_LOAD( "m25030aa.2a", 0x0000, 0x8000, CRC(bd3e4938) SHA1(5bd48abd2a563a1ae31ff137280f40c8f756e969), ROM_BIOS(0) )
ROM_SYSTEM_BIOS( 1, "052884", "5/28/84" )
ROMX_LOAD( "px060688.2a", 0x0000, 0x8000, CRC(44308bdf) SHA1(5c4545fcf1af9931b4699436294d9b6298052a7b), ROM_BIOS(1) )
ROM_REGION( 0x0800, SED1320_TAG, 0 )
ROM_LOAD( "font.rom", 0x0000, 0x0800, CRC(5b52edbd) SHA1(38197edf301bb2843bea040536af545f76b3d44f) )
ROM_REGION( 0x1000, HD6303_TAG, 0 )
ROM_LOAD( "hd6303 slave cpu internal rom.13d", 0x0000, 0x1000, NO_DUMP )
ROM_REGION( 0x1000, UPD7508_TAG, 0 )
ROM_LOAD( "upd7508 sub cpu internal rom.2e", 0x0000, 0x1000, NO_DUMP )
// Possibly cartridges
ROM_REGION( 0x8000, "carts", 0 )
ROM_LOAD( "px8-util.rom", 0x00000, 0x8000, CRC(4430a271) SHA1(58c23a5f25ad9cdb70ada44dc773e6899e9bd8bf) ) // various utilities
ROM_END
/***************************************************************************
SYSTEM DRIVERS
***************************************************************************/
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1984, px8, 0, 0, px8, px8, px8_state, empty_init, "Epson", "PX-8", MACHINE_NOT_WORKING )
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