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c93ed344fb
mame/src/mess/drivers/spc1000.c
Miodrag Milanovic c93ed344fb Cleanups and version bump
2014-10-15 07:19:47 +00:00

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// license:MAME
// copyright-holders:Miodrag Milanovic, Robbbert
/***************************************************************************
Samsung SPC-1000 driver by Miodrag Milanovic
2009-05-10 Preliminary driver.
2014-02-16 Added cassette, many games are playable
ToDo:
- Some games have keyboard problems (e.g. Invaders, Panzerspitze)
- Some games freeze at start (e.g. Super Xevious)
- Find out if any of the unconnected parts of 6000,4000,4001 are used
NOTE: 2014-09-13: added code from someone's modified MESS driver for floppy
disk. Since it is not to our coding standards, it is
commented out with #if 0/#endif and 3 slashes (///).
It is planned to be converted when time permits. The
author is Meeso Kim.
Hardware details of the fdc: Intelligent device, Z80 CPU,
XTAL_8MHz, PPI 8255, FDC uPD765C, 2 RAM chips, 28 other
small ics. And of course, no schematic.
2014-10-11: Replaced above code with MESS-compliant code [Meso Kim]
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "video/mc6847.h"
#include "sound/ay8910.h"
#include "sound/wave.h"
#include "imagedev/cassette.h"
#include "machine/ram.h"
#include "formats/spc1000_cas.h"
#include "machine/i8255.h"
#include "machine/upd765.h"
class spc1000_state : public driver_device
{
public:
spc1000_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_p_videoram(*this, "videoram")
, m_vdg(*this, "mc6847")
, m_maincpu(*this, "maincpu")
, m_fdccpu(*this, "fdccpu")
, m_fdc(*this, "upd765")
, m_pio(*this, "d8255_master")
, m_ram(*this, RAM_TAG)
, m_cass(*this, "cassette")
{}
DECLARE_WRITE8_MEMBER(spc1000_iplk_w);
DECLARE_READ8_MEMBER(spc1000_iplk_r);
DECLARE_WRITE_LINE_MEMBER(irq_w);
DECLARE_WRITE8_MEMBER(spc1000_gmode_w);
DECLARE_READ8_MEMBER(spc1000_gmode_r);
DECLARE_READ8_MEMBER(porta_r);
DECLARE_READ8_MEMBER(mc6847_videoram_r);
DECLARE_WRITE8_MEMBER(cass_w);
DECLARE_WRITE8_MEMBER(spc1000_sd725_w);
DECLARE_READ8_MEMBER(spc1000_sd725_r);
DECLARE_WRITE8_MEMBER(fdc_8255_b_w);
DECLARE_READ8_MEMBER(fdc_8255_c_r);
DECLARE_WRITE8_MEMBER(fdc_8255_c_w);
DECLARE_READ8_MEMBER( upd765_tc_r );
DECLARE_WRITE8_MEMBER( fdc_control_w );
MC6847_GET_CHARROM_MEMBER(get_char_rom)
{
return m_p_videoram[0x1000 + (ch & 0x7f) * 16 + line];
}
required_shared_ptr<UINT8> m_p_videoram;
private:
UINT8 m_IPLK;
UINT8 m_GMODE;
UINT16 m_page;
UINT8 *m_work_ram;
virtual void machine_reset();
required_device<mc6847_base_device> m_vdg;
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_fdccpu;
required_device<upd765a_device> m_fdc;
required_device<i8255_device> m_pio;
required_device<ram_device> m_ram;
required_device<cassette_image_device> m_cass;
floppy_image_device *m_fd0;
floppy_image_device *m_fd1;
emu_timer *m_timer_tc;
UINT8 m_i8255_0_pc;
UINT8 m_i8255_1_pc;
UINT8 m_i8255_portb;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
};
void spc1000_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
m_fdc->tc_w(false);
}
static ADDRESS_MAP_START(spc1000_mem, AS_PROGRAM, 8, spc1000_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE( 0x0000, 0x7fff ) AM_READ_BANK("bank1") AM_WRITE_BANK("bank2")
AM_RANGE( 0x8000, 0xffff ) AM_READ_BANK("bank3") AM_WRITE_BANK("bank4")
ADDRESS_MAP_END
WRITE8_MEMBER(spc1000_state::spc1000_iplk_w)
{
m_IPLK = m_IPLK ? 0 : 1;
if (m_IPLK == 1) {
UINT8 *mem = memregion("maincpu")->base();
membank("bank1")->set_base(mem);
membank("bank3")->set_base(mem);
} else {
UINT8 *ram = m_ram->pointer();
membank("bank1")->set_base(ram);
membank("bank3")->set_base(ram + 0x8000);
}
}
READ8_MEMBER(spc1000_state::spc1000_iplk_r)
{
m_IPLK = m_IPLK ? 0 : 1;
if (m_IPLK == 1) {
UINT8 *mem = memregion("maincpu")->base();
membank("bank1")->set_base(mem);
membank("bank3")->set_base(mem);
} else {
UINT8 *ram = m_ram->pointer();
membank("bank1")->set_base(ram);
membank("bank3")->set_base(ram + 0x8000);
}
return 0;
}
WRITE8_MEMBER( spc1000_state::cass_w )
{
m_cass->output(BIT(data, 0) ? -1.0 : 1.0);
}
WRITE8_MEMBER(spc1000_state::spc1000_gmode_w)
{
m_GMODE = data;
// m_GMODE layout: CSS|NA|PS2|PS1|~A/G|GM0|GM1|NA
// [PS2,PS1] is used to set screen 0/1 pages
m_vdg->gm1_w(BIT(data, 1));
m_vdg->gm0_w(BIT(data, 2));
m_vdg->ag_w(BIT(data, 3));
m_vdg->css_w(BIT(data, 7));
m_page = ( (BIT(data, 5) << 1) | BIT(data, 4) )*0x200;
}
READ8_MEMBER(spc1000_state::spc1000_gmode_r)
{
return m_GMODE;
}
READ8_MEMBER(spc1000_state::spc1000_sd725_r)
{
UINT8 data = 0;
switch (offset)
{
case 1:
data = m_i8255_portb;
break;
case 2:
data = m_i8255_1_pc >> 4;
break;
}
return data;
}
WRITE8_MEMBER(spc1000_state::spc1000_sd725_w)
{
switch (offset)
{
case 0:
m_pio->write(space, offset+1, data);
break;
case 2:
m_i8255_0_pc = data;
break;
}
}
READ8_MEMBER(spc1000_state::fdc_8255_c_r)
{
return m_i8255_0_pc >> 4;
}
WRITE8_MEMBER(spc1000_state::fdc_8255_b_w)
{
m_i8255_portb = data;
}
WRITE8_MEMBER(spc1000_state::fdc_8255_c_w)
{
m_i8255_1_pc = data;
}
//-------------------------------------------------
// fdc interrupt
//-------------------------------------------------
READ8_MEMBER( spc1000_state::upd765_tc_r )
{
logerror("%s: upd765_tc_r\n", space.machine().describe_context());
// toggle tc on read
m_fdc->tc_w(true);
m_timer_tc->adjust(attotime::zero);
return 0xff;
}
WRITE8_MEMBER( spc1000_state::fdc_control_w )
{
logerror("%s: sd725_fdc_control_w(%02x)\n", space.machine().describe_context(), data);
// bit 0, motor on signal
if (m_fd0)
m_fd0->mon_w(!BIT(data, 0));
if (m_fd1)
m_fd1->mon_w(!BIT(data, 0));
}
static ADDRESS_MAP_START( spc1000_io , AS_IO, 8, spc1000_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x1fff) AM_RAM AM_SHARE("videoram")
AM_RANGE(0x2000, 0x3fff) AM_READWRITE(spc1000_gmode_r, spc1000_gmode_w)
AM_RANGE(0x4000, 0x4000) AM_DEVWRITE("ay8910", ay8910_device, address_w)
AM_RANGE(0x4001, 0x4001) AM_DEVREADWRITE("ay8910", ay8910_device, data_r, data_w)
AM_RANGE(0x6000, 0x6000) AM_WRITE(cass_w)
AM_RANGE(0x8000, 0x8000) AM_READ_PORT("LINE0")
AM_RANGE(0x8001, 0x8001) AM_READ_PORT("LINE1")
AM_RANGE(0x8002, 0x8002) AM_READ_PORT("LINE2")
AM_RANGE(0x8003, 0x8003) AM_READ_PORT("LINE3")
AM_RANGE(0x8004, 0x8004) AM_READ_PORT("LINE4")
AM_RANGE(0x8005, 0x8005) AM_READ_PORT("LINE5")
AM_RANGE(0x8006, 0x8006) AM_READ_PORT("LINE6")
AM_RANGE(0x8007, 0x8007) AM_READ_PORT("LINE7")
AM_RANGE(0x8008, 0x8008) AM_READ_PORT("LINE8")
AM_RANGE(0x8009, 0x8009) AM_READ_PORT("LINE9")
AM_RANGE(0xA000, 0xA000) AM_READWRITE(spc1000_iplk_r, spc1000_iplk_w)
AM_RANGE(0xC000, 0xC002) AM_READWRITE(spc1000_sd725_r, spc1000_sd725_w)
// AM_RANGE(0xC000, 0xC003) AM_DEVREADWRITE("d8255_master", i8255_device, read, write)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( spc1000 )
PORT_START("LINE0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_RSHIFT) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_RCONTROL) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_PAUSE)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Graph") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("^ ~") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') PORT_CHAR(0x1e)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Home") PORT_CODE(KEYCODE_HOME)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(0x03)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR(0x01)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR(0x16)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_START("LINE2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Caps") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(0x1a)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_CHAR(0x1d)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR(0x16)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(0x13)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR(0x17)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
PORT_START("LINE3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_CHAR(0x12)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(0x1b)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_CHAR(0x1b)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_CHAR(0x02)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(0x04)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(0x05)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_START("LINE4")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_CHAR(0x1c)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_CHAR(0x0e)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR(0x06)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR(0x12)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_START("LINE5")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_CHAR(0x0d)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR(0x07)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(0x14)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_START("LINE6")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("@ `") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('@') PORT_CHAR('`')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(0x18)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_CHAR(0x08)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_CHAR(0x19)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_START("LINE7")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR(0x10)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_CHAR(0x0a)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR(0x15)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 '") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_START("LINE8")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_CHAR(0x0b)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_CHAR(0x09)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_START("LINE9")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_START) PORT_NAME("IPL") PORT_CODE(KEYCODE_END)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
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_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(0x0c)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(0x0e)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
INPUT_PORTS_END
void spc1000_state::machine_reset()
{
address_space &space = m_maincpu->space(AS_PROGRAM);
UINT8 *mem = memregion("maincpu")->base();
UINT8 *ram = m_ram->pointer();
space.install_read_bank(0x0000, 0x7fff, "bank1");
space.install_read_bank(0x8000, 0xffff, "bank3");
space.install_write_bank(0x0000, 0x7fff, "bank2");
space.install_write_bank(0x8000, 0xffff, "bank4");
membank("bank1")->set_base(mem);
membank("bank2")->set_base(ram);
membank("bank3")->set_base(mem);
membank("bank4")->set_base(ram + 0x8000);
m_work_ram = auto_alloc_array_clear(machine(), UINT8, 0x10000);
m_fdccpu->set_input_line_vector(0, 0);
m_fd0 = machine().device<floppy_connector>("upd765:0")->get_device();
m_fd1 = machine().device<floppy_connector>("upd765:1")->get_device();
m_timer_tc = timer_alloc(1, NULL);
m_timer_tc->adjust(attotime::never);
// enable rom
m_fdccpu->space(AS_PROGRAM).install_rom(0x0000, 0xfff, 0, 0x2000, memregion("rom")->base());
m_IPLK = 1;
}
READ8_MEMBER(spc1000_state::mc6847_videoram_r)
{
if (offset == ~0) return 0xff;
// m_GMODE layout: CSS|NA|PS2|PS1|~A/G|GM0|GM1|NA
if ( !BIT(m_GMODE, 3) )
{ // text mode (~A/G set to A)
UINT8 data = m_p_videoram[offset+m_page+0x800];
m_vdg->inv_w(BIT(data, 0));
m_vdg->css_w(BIT(data, 1));
m_vdg->as_w (BIT(data, 2));
m_vdg->intext_w(BIT(data, 3));
return m_p_videoram[offset+m_page];
}
else
{ // graphics mode: uses full 6KB of VRAM
return m_p_videoram[offset];
}
}
READ8_MEMBER( spc1000_state::porta_r )
{
UINT8 data = 0;
data |= (m_cass->input() > 0.0038) ? 0x80 : 0;
data |= ((m_cass->get_state() & CASSETTE_MASK_UISTATE) == CASSETTE_PLAY) ? 0x00 : 0x40;
return data;
}
// irq is inverted in emulation, so we need this trampoline
WRITE_LINE_MEMBER( spc1000_state::irq_w )
{
m_maincpu->set_input_line(0, state ? CLEAR_LINE : HOLD_LINE);
}
static SLOT_INTERFACE_START( sd725_floppies )
SLOT_INTERFACE( "sd320", EPSON_SD_320 )
SLOT_INTERFACE_END
//-------------------------------------------------
// address maps
//-------------------------------------------------
static ADDRESS_MAP_START( sd725_mem, AS_PROGRAM, 8, spc1000_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x1fff) AM_ROM
AM_RANGE(0x2000, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( sd725_io, AS_IO, 8, spc1000_state )
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0xf8, 0xf8) AM_READWRITE(upd765_tc_r,fdc_control_w) // (R) Terminal Count Port (W) Motor Control Port
AM_RANGE(0xfa, 0xfb) AM_DEVICE("upd765", upd765a_device, map )
AM_RANGE(0xfc, 0xff) AM_DEVREADWRITE("d8255_master", i8255_device, read, write)
ADDRESS_MAP_END
static MACHINE_CONFIG_START( spc1000, spc1000_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(spc1000_mem)
MCFG_CPU_IO_MAP(spc1000_io)
/* sub CPU(5 inch floppy drive) */
MCFG_CPU_ADD("fdccpu", Z80, XTAL_4MHz) /* 4 MHz */
MCFG_CPU_PROGRAM_MAP(sd725_mem)
MCFG_CPU_IO_MAP(sd725_io)
MCFG_DEVICE_ADD("d8255_master", I8255, 0)
MCFG_I8255_IN_PORTA_CB(DEVREAD8("d8255_master", i8255_device, pb_r))
MCFG_I8255_IN_PORTB_CB(DEVREAD8("d8255_master", i8255_device, pa_r))
MCFG_I8255_OUT_PORTB_CB(WRITE8(spc1000_state, fdc_8255_b_w))
MCFG_I8255_IN_PORTC_CB(READ8(spc1000_state, fdc_8255_c_r))
MCFG_I8255_OUT_PORTC_CB(WRITE8(spc1000_state, fdc_8255_c_w))
// floppy disk controller
MCFG_UPD765A_ADD("upd765", true, true)
MCFG_UPD765_INTRQ_CALLBACK(INPUTLINE("fdccpu", INPUT_LINE_IRQ0))
// floppy drives
MCFG_FLOPPY_DRIVE_ADD("upd765:0", sd725_floppies, "sd320", floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD("upd765:1", sd725_floppies, "sd320", floppy_image_device::default_floppy_formats)
//CFG_SOFTWARE_LIST_ADD("disk_list","spc1000_flop")
/* video hardware */
MCFG_SCREEN_MC6847_NTSC_ADD("screen", "mc6847")
MCFG_DEVICE_ADD("mc6847", MC6847_NTSC, XTAL_3_579545MHz)
MCFG_MC6847_FSYNC_CALLBACK(WRITELINE(spc1000_state, irq_w))
MCFG_MC6847_INPUT_CALLBACK(READ8(spc1000_state, mc6847_videoram_r))
MCFG_MC6847_CHARROM_CALLBACK(spc1000_state, get_char_rom)
MCFG_MC6847_FIXED_MODE(MC6847_MODE_GM2)
// other lines not connected
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("ay8910", AY8910, XTAL_4MHz / 1)
MCFG_AY8910_PORT_A_READ_CB(READ8(spc1000_state, porta_r))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
MCFG_CASSETTE_ADD( "cassette" )
MCFG_CASSETTE_FORMATS(spc1000_cassette_formats)
MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED)
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( spc1000 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "spcall.rom", 0x0000, 0x8000, CRC(19638fc9) SHA1(489f1baa7aebf3c8c660325fb1fd790d84203284))
ROM_REGION( 0x10000, "fdccpu", 0)
ROM_LOAD("sd725a.bin", 0x0000, 0x1000, CRC(96ac2eb8) SHA1(8e9d8f63a7fb87af417e95603e71cf537a6e83f1))
ROM_END
#if 0
ROM_START( spc1000 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "spcall.rom", 0x0000, 0x8000, CRC(2FBB6ECA) SHA1(cc9a076b0f00d54b2aec31f1f558b10f43ef61c8))
/// more roms to come...
ROM_END
#endif
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1982, spc1000, 0, 0, spc1000, spc1000, driver_device, 0, "Samsung", "SPC-1000", GAME_NOT_WORKING )
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