// license:MAME
// copyright-holders:Incog, Robbbert
/***************************************************************************
bbcbc.c
BBC Bridge Companion
Inputs hooked up - 2009-03-14 - Robbbert
Clock Freq added - 2009-05-18 - incog
***************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "video/tms9928a.h"
#include "machine/z80pio.h"
#include "cpu/z80/z80daisy.h"
#include "imagedev/cartslot.h"
class bbcbc_state : public driver_device
{
public:
bbcbc_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu")
{ }
required_device<cpu_device> m_maincpu;
virtual void machine_start();
virtual void machine_reset();
DECLARE_WRITE_LINE_MEMBER(tms_interrupt);
DECLARE_DEVICE_IMAGE_LOAD_MEMBER( bbcbc_cart );
};
#define MAIN_CLOCK XTAL_4_433619MHz
static ADDRESS_MAP_START( bbcbc_prg, AS_PROGRAM, 8, bbcbc_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM
AM_RANGE(0x4000, 0xbfff) AM_ROM
AM_RANGE(0xe000, 0xe02f) AM_RAM
AM_RANGE(0xe030, 0xe030) AM_READ_PORT("LINE01")
AM_RANGE(0xe031, 0xe031) AM_READ_PORT("LINE02")
AM_RANGE(0xe032, 0xe032) AM_READ_PORT("LINE03")
AM_RANGE(0xe033, 0xe033) AM_READ_PORT("LINE04")
AM_RANGE(0xe034, 0xe034) AM_READ_PORT("LINE05")
AM_RANGE(0xe035, 0xe035) AM_READ_PORT("LINE06")
AM_RANGE(0xe036, 0xe036) AM_READ_PORT("LINE07")
AM_RANGE(0xe037, 0xe037) AM_READ_PORT("LINE08")
AM_RANGE(0xe038, 0xe038) AM_READ_PORT("LINE09")
AM_RANGE(0xe039, 0xe039) AM_READ_PORT("LINE10")
AM_RANGE(0xe03a, 0xe03a) AM_READ_PORT("LINE11")
AM_RANGE(0xe03b, 0xe03b) AM_READ_PORT("LINE12")
AM_RANGE(0xe03c, 0xe7ff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( bbcbc_io, AS_IO, 8, bbcbc_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x40, 0x43) AM_DEVREADWRITE("z80pio", z80pio_device, read, write)
AM_RANGE(0x80, 0x80) AM_DEVREADWRITE("tms9129", tms9129_device, vram_read, vram_write)
AM_RANGE(0x81, 0x81) AM_DEVREADWRITE("tms9129", tms9129_device, register_read, register_write)
ADDRESS_MAP_END
static INPUT_PORTS_START( bbcbc )
PORT_START("LINE01")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Pass") PORT_CODE(KEYCODE_W) PORT_IMPULSE(1)
PORT_START("LINE02")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Clubs") PORT_CODE(KEYCODE_G) PORT_IMPULSE(1)
PORT_START("LINE03")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Spades") PORT_CODE(KEYCODE_D) PORT_IMPULSE(1)
PORT_START("LINE04")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Rdbl") PORT_CODE(KEYCODE_T) PORT_IMPULSE(1)
PORT_START("LINE05")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("NT") PORT_CODE(KEYCODE_E) PORT_IMPULSE(1)
PORT_START("LINE06")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Hearts, Up") PORT_CODE(KEYCODE_S) PORT_IMPULSE(1)
PORT_START("LINE07")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Play, Yes") PORT_CODE(KEYCODE_X) PORT_IMPULSE(1)
PORT_START("LINE08")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Back") PORT_CODE(KEYCODE_A) PORT_IMPULSE(1)
PORT_START("LINE09")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Dbl") PORT_CODE(KEYCODE_R) PORT_IMPULSE(1)
PORT_START("LINE10")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Diamonds, Down") PORT_CODE(KEYCODE_F) PORT_IMPULSE(1)
PORT_START("LINE11")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Start") PORT_CODE(KEYCODE_Q) PORT_IMPULSE(1)
PORT_START("LINE12")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Play, No") PORT_CODE(KEYCODE_B) PORT_IMPULSE(1)
INPUT_PORTS_END
WRITE_LINE_MEMBER(bbcbc_state::tms_interrupt)
{
m_maincpu->set_input_line(0, state ? ASSERT_LINE : CLEAR_LINE);
}
static const z80_daisy_config bbcbc_daisy_chain[] =
{
{ "z80pio" },
{ NULL }
};
DEVICE_IMAGE_LOAD_MEMBER( bbcbc_state, bbcbc_cart )
{
UINT8 *cart = memregion("maincpu" )->base() + 0x4000;
if ( image.software_entry() == NULL )
{
int size = image.length();
if ( image.fread(cart, size ) != size ) {
image.seterror( IMAGE_ERROR_UNSPECIFIED, "Unable to fully read from file" );
return IMAGE_INIT_FAIL;
}
}
else
{
UINT8 *reg = image.get_software_region( "rom" );
int reg_len = image.get_software_region_length( "rom" );
memcpy( cart, reg, MIN(reg_len, 0x8000) );
}
return IMAGE_INIT_PASS;
}
void bbcbc_state::machine_start()
{
}
void bbcbc_state::machine_reset()
{
}
static MACHINE_CONFIG_START( bbcbc, bbcbc_state )
MCFG_CPU_ADD( "maincpu", Z80, MAIN_CLOCK / 8 )
MCFG_CPU_PROGRAM_MAP( bbcbc_prg)
MCFG_CPU_IO_MAP( bbcbc_io)
MCFG_CPU_CONFIG(bbcbc_daisy_chain)
MCFG_DEVICE_ADD("z80pio", Z80PIO, MAIN_CLOCK/8)
MCFG_DEVICE_ADD( "tms9129", TMS9129, XTAL_10_738635MHz / 2 )
MCFG_TMS9928A_VRAM_SIZE(0x4000)
MCFG_TMS9928A_OUT_INT_LINE_CB(WRITELINE(bbcbc_state, tms_interrupt))
MCFG_TMS9928A_SCREEN_ADD_PAL( "screen" )
MCFG_SCREEN_UPDATE_DEVICE( "tms9129", tms9928a_device, screen_update )
MCFG_CARTSLOT_ADD("cart")
MCFG_CARTSLOT_NOT_MANDATORY
MCFG_CARTSLOT_INTERFACE("bbcbc_cart")
MCFG_CARTSLOT_LOAD( bbcbc_state, bbcbc_cart )
/* Software lists */
MCFG_SOFTWARE_LIST_ADD("cart_list","bbcbc")
MACHINE_CONFIG_END
ROM_START( bbcbc )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD("br_4_1.ic3", 0x0000, 0x2000, CRC(7c880d75) SHA1(954db096bd9e8edfef72946637a12f1083841fb0))
ROM_LOAD("br_4_2.ic4", 0x2000, 0x2000, CRC(16a33aef) SHA1(9529f9f792718a3715af2063b91a5fb18f741226))
ROM_END
/***************************************************************************
Game driver(s)
***************************************************************************/
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
CONS(1985, bbcbc, 0, 0, bbcbc, bbcbc, driver_device, 0, "BBC", "Bridge Companion", GAME_NO_SOUND_HW )