/***************************************************************************

	Victory system

    driver by Aaron Giles

****************************************************************************

	Memory map

****************************************************************************

	========================================================================
	CPU #1
	========================================================================
	0000-BFFF   R     xxxxxxxx   Program ROM
	C000        R     xxxxxxxx   Foreground collision X position
	C001        R     xxxxxxxx   Foreground collision Y position/IRQ clear
	C002        R     xxxxxx--   Background collision X position
	C003        R     xxxxxxxx   Background collision Y position/IRQ clear
	C004        R     xxxxx---   Interrupt/microcode status
	            R     x-------      (Microcode busy)
	            R     -x------      (Foreground collision IRQ)
	            R     --x-----      (Video VBLANK IRQ)
	            R     ---x----      (Background collision IRQ)
	            R     ----x---      (Scanline bit 8)
	C100-C101     W   xxxxxxxx   Microcode register I
	C102          W   xxxxxxxx   Microcode command register
	C103          W   xxxxxxxx   Microcode register G
	C104          W   xxxxxxxx   Microcode register X
	C105          W   xxxxxxxx   Microcode register Y
	C106          W   xxxxxxxx   Microcode register R
	C107          W   xxxxxxxx   Microcode register B
	C108          W   xxxxxxxx   Background X scroll
	C109          W   xxxxxxxx   Background Y scroll
	C10A          W   xxxxxxx-   Video control register
	              W   x-------      (HLMBK??)
	              W   -x------      (VLMBK??)
	              W   --x-----      (Background collision IRQ enable)
	              W   ---x----      (Refresh rate select 50/60)
	              W   ----x---      (Screen invert)
	              W   -----x--      (Background collision select)
	              W   ------x-      (SELOVER??)
	C10B          W   --------   Video IRQ clear
	C200-C3FF     W   xxxxxxxx   Palette RAM
	              W   xx------      (Red, 2 LSB; MSB comes from A7)
	              W   --xxx---      (Blue)
	              W   -----xxx      (Green)
	C400-C7FF   R/W   xxxxxxxx   Background tile RAM
	C800-CFFF   R/W   xxxxxxxx   Red background character RAM
	D000-D7FF   R/W   xxxxxxxx   Blue background character RAM
	D800-DFFF   R/W   xxxxxxxx   Green background character RAM
	E000-EFFF   R/W   xxxxxxxx   Program RAM
	F000-F7FF   R/W   xxxxxxxx   NVRAM
	F800        R     xxxxxxxx   Sound CPU response
	F800          W   xxxxxxxx   Sound CPU command
	F801        R     xx------   Sound CPU status
	            R     x-------      (Command pending)
	            R     -x------      (Response pending)
	========================================================================
	  00-03     R     xxxxxxxx   DIP switch 1
	            R     x-------      (Refresh rate select 50/60)
	            R     -----xxx      (Unknown)
	  04-07     R     xxxxxxxx   DIP switch 2
	  08-0B     R/W   xxxxxxxx   PIO #1
	  0C-0F     R/W   xxxxxxxx   PIO #2
	  10-13       W   xxxxx---   Lamp/coin control
	              W   x-------      (Thrust button lamp)
	              W   -x------      (Fire button lamp)
	              W   --x-----      (Doomsday button lamp)
	              W   ---x----      (Shields button lamp)
	              W   ----x---      (Coin counter)
	========================================================================
	Interrupts:
	   INT generated by collision IRQs and VBLANK
	========================================================================

	========================================================================
	CPU #2
	========================================================================
	0000-01FF   R/W   xxxxxxxx   Program RAM
	1000-1FFF   R/W   xxxxxxxx   6532 RIOT timer and I/O
	2000-2FFF   R/W   xxxxxxxx   6821 PIA I/O
	3000-3FFF   R/W   xxxxxxxx   8253 timer
	5000-5FFF   R/W   xxxxxxxx   6840 timer
	6000-6FFF     W   ------xx   Control bits
	              W   ------x-      (6840 Channel 1 output enable)
	              W   -------x      (sound effects noise frequency select)
	C000-FFFF   R     xxxxxxxx   Program ROM
	========================================================================
	Interrupts:
	   INT generated by 6532 RIOT
	========================================================================

***************************************************************************/


#include "driver.h"
#include "machine/6821pia.h"
#include "vidhrdw/generic.h"


#define LOG_SOUND		0


static UINT8 sound_response;
static UINT8 sound_response_ack_clk;


/* sound driver data & functions */
int victory_sh_start(const struct MachineSound *msound);

READ_HANDLER( exidy_shriot_r );
READ_HANDLER( exidy_sh6840_r );
READ_HANDLER( exidy_sh8253_r );
WRITE_HANDLER( exidy_shriot_w );
WRITE_HANDLER( exidy_sh6840_w );
WRITE_HANDLER( exidy_sh8253_w );
WRITE_HANDLER( exidy_sfxctrl_w );


/* video driver data & functions */
extern UINT8 *victory_charram;

VIDEO_START( victory );
VIDEO_EOF( victory );
VIDEO_UPDATE( victory );
INTERRUPT_GEN( victory_vblank_interrupt );

READ_HANDLER( victory_video_control_r );
WRITE_HANDLER( victory_video_control_w );
WRITE_HANDLER( victory_paletteram_w );
WRITE_HANDLER( victory_videoram_w );
WRITE_HANDLER( victory_charram_w );



/*************************************
 *
 *	Sound CPU control
 *
 *************************************/

static READ_HANDLER( sound_response_r )
{
	if (LOG_SOUND) logerror("%04X:!!!! Sound response read = %02X\n", activecpu_get_previouspc(), sound_response);
	pia_0_cb1_w(0, 0);
	return sound_response;
}


static READ_HANDLER( sound_status_r )
{
	if (LOG_SOUND) logerror("%04X:!!!! Sound status read = %02X\n", activecpu_get_previouspc(), (pia_0_ca1_r(0) << 7) | (pia_0_cb1_r(0) << 6));
	return (pia_0_ca1_r(0) << 7) | (pia_0_cb1_r(0) << 6);
}


static void delayed_command_w(int data)
{
	pia_0_porta_w(0, data);
	pia_0_ca1_w(0, 0);
	if (LOG_SOUND) logerror("%04X:!!!! Sound command = %02X\n", activecpu_get_previouspc(), data);
}

static WRITE_HANDLER( sound_command_w )
{
	timer_set(TIME_NOW, data, delayed_command_w);
}


WRITE_HANDLER( victory_sound_response_w )
{
	sound_response = data;
	if (LOG_SOUND) logerror("%04X:!!!! Sound response = %02X\n", activecpu_get_previouspc(), data);
}


WRITE_HANDLER( victory_sound_irq_clear_w )
{
	if (LOG_SOUND) logerror("%04X:!!!! Sound IRQ clear = %02X\n", activecpu_get_previouspc(), data);
	if (!data) pia_0_ca1_w(0, 1);
}


WRITE_HANDLER( victory_main_ack_w )
{
	if (LOG_SOUND) logerror("%04X:!!!! Sound ack = %02X\n", activecpu_get_previouspc(), data);
	if (sound_response_ack_clk && !data)
		pia_0_cb1_w(0, 1);
	sound_response_ack_clk = data;
}



/*************************************
 *
 *	Misc I/O
 *
 *************************************/

static WRITE_HANDLER( lamp_control_w )
{
	set_led_status(0,data & 0x80);
	set_led_status(1,data & 0x40);
	set_led_status(2,data & 0x20);
	set_led_status(3,data & 0x10);
}



/*************************************
 *
 *	Main CPU memory handlers
 *
 *************************************/

static MEMORY_READ_START( main_readmem )
	{ 0x0000, 0xbfff, MRA_ROM },
	{ 0xc000, 0xc0ff, victory_video_control_r },
	{ 0xc400, 0xc7ff, MRA_RAM },
	{ 0xc800, 0xdfff, MRA_RAM },
	{ 0xe000, 0xefff, MRA_RAM },
	{ 0xf000, 0xf7ff, MRA_RAM },
	{ 0xf800, 0xf800, sound_response_r },
	{ 0xf801, 0xf801, sound_status_r },
MEMORY_END


static MEMORY_WRITE_START( main_writemem )
	{ 0x0000, 0xbfff, MWA_ROM },
	{ 0xc100, 0xc1ff, victory_video_control_w },
	{ 0xc200, 0xc3ff, victory_paletteram_w, &paletteram },
	{ 0xc400, 0xc7ff, victory_videoram_w, &videoram },
	{ 0xc800, 0xdfff, victory_charram_w, &victory_charram },
	{ 0xe000, 0xefff, MWA_RAM },
	{ 0xf000, 0xf7ff, MWA_RAM, &generic_nvram, &generic_nvram_size },
	{ 0xf800, 0xf800, sound_command_w },
MEMORY_END


static PORT_READ_START( main_readport )
	{ 0x00, 0x03, input_port_0_r },
	{ 0x04, 0x07, input_port_1_r },
	{ 0x08, 0x08, input_port_2_r },
	{ 0x0a, 0x0a, input_port_3_r },
	{ 0x0c, 0x0c, input_port_4_r },
	{ 0x0e, 0x0e, input_port_5_r },
PORT_END


static PORT_WRITE_START( main_writeport )
	{ 0x10, 0x13, lamp_control_w },
PORT_END



/*************************************
 *
 *	Sound CPU memory handlers
 *
 *************************************/

static MEMORY_READ_START( sound_readmem )
	{ 0x0000, 0x01ff, MRA_RAM },
	{ 0x1000, 0x1fff, exidy_shriot_r },
	{ 0x2000, 0x200f, pia_0_r },
	{ 0x3000, 0x3fff, exidy_sh8253_r },
	{ 0x5000, 0x5fff, exidy_sh6840_r },
	{ 0xc000, 0xffff, MRA_ROM },
MEMORY_END


static MEMORY_WRITE_START( sound_writemem )
	{ 0x0000, 0x01ff, MWA_RAM },
	{ 0x1000, 0x1fff, exidy_shriot_w },
	{ 0x2000, 0x200f, pia_0_w },
	{ 0x3000, 0x3fff, exidy_sh8253_w },
	{ 0x5000, 0x5fff, exidy_sh6840_w },
	{ 0x6000, 0x6fff, exidy_sfxctrl_w },
	{ 0xc000, 0xffff, MWA_ROM },
MEMORY_END



/*************************************
 *
 *	Port definitions
 *
 *************************************/

INPUT_PORTS_START( victory )
	PORT_START	/* $00-$03 = SW2 */
	PORT_DIPNAME( 0x07, 0x00, "????" )
	PORT_DIPSETTING(    0x00, "0" )
	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" )
	PORT_BIT( 0x78, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_DIPNAME( 0x80, 0x00, "Refresh" )
	PORT_DIPSETTING(    0x00, "60 Hz" )
	PORT_DIPSETTING(    0x80, "50 Hz" )

	PORT_START	/* $04-$07 = SW1 */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )

	PORT_START	/* $08-$09 = PIO K8 port A */
	PORT_ANALOG( 0xff, 0x80, IPT_DIAL | IPF_REVERSE, 25, 10, 0x00, 0xff )

	PORT_START	/* $0A-$0B = PIO K8 port B */
	PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )

	PORT_START	/* $0C-$0D = PIO L8 port A */
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON4 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON3 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* $0E-$0F = PIO L8 port B */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END



/*************************************
 *
 *	Sound definitions
 *
 *************************************/

static struct CustomSound_interface custom_interface =
{
    victory_sh_start,
    0,
	0
};


static struct TMS5220interface tms5220_interface =
{
	640000,
	100,
	0
};



/*************************************
 *
 *	Machine driver
 *
 *************************************/

static MACHINE_DRIVER_START( victory )

	/* basic machine hardware */
	MDRV_CPU_ADD(Z80, 4000000)
	MDRV_CPU_MEMORY(main_readmem,main_writemem)
	MDRV_CPU_PORTS(main_readport,main_writeport)
	MDRV_CPU_VBLANK_INT(victory_vblank_interrupt,1)

	MDRV_CPU_ADD(M6502,3579545/4)
	MDRV_CPU_FLAGS(CPU_AUDIO_CPU)
	MDRV_CPU_MEMORY(sound_readmem,sound_writemem)

	MDRV_FRAMES_PER_SECOND(60)
	MDRV_VBLANK_DURATION(DEFAULT_REAL_60HZ_VBLANK_DURATION)
	
	MDRV_NVRAM_HANDLER(generic_0fill)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER | VIDEO_UPDATE_BEFORE_VBLANK)
	MDRV_SCREEN_SIZE(256, 256)
	MDRV_VISIBLE_AREA(0, 255, 0, 255)
	MDRV_PALETTE_LENGTH(64)

	MDRV_VIDEO_START(victory)
	MDRV_VIDEO_EOF(victory)
	MDRV_VIDEO_UPDATE(victory)

	/* sound hardware */
	MDRV_SOUND_ADD(CUSTOM, custom_interface)
	MDRV_SOUND_ADD(TMS5220, tms5220_interface)
MACHINE_DRIVER_END



/*************************************
 *
 *	ROM definitions
 *
 *************************************/

ROM_START( victory )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "vic3.j2",  0x0000, 0x1000, 0x4b614440 )
	ROM_LOAD( "vic3.k2",  0x1000, 0x1000, 0x9f9eb12b )
	ROM_LOAD( "vic3.kl2", 0x2000, 0x1000, 0xa0db4bf9 )
	ROM_LOAD( "vic3.l2",  0x3000, 0x1000, 0x69855b46 )
	ROM_LOAD( "vic3.m2",  0x4000, 0x1000, 0x1ddbe9d4 )
	ROM_LOAD( "vic3.n2",  0x5000, 0x1000, 0xdbb53f1f )
	ROM_LOAD( "vic3.p2",  0x6000, 0x1000, 0x9959e1c4 )
	ROM_LOAD( "vic3.t2",  0x7000, 0x1000, 0x8f1b997a )
	ROM_LOAD( "vic3.j1",  0x8000, 0x1000, 0x27e9e87b )
	ROM_LOAD( "vic3.k1",  0x9000, 0x1000, 0x418d9b80 )
	ROM_LOAD( "vic3.kl1", 0xa000, 0x1000, 0x2b7e626f )
	ROM_LOAD( "vic3.l1",  0xb000, 0x1000, 0x7bb8e1f5 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "vic1.7bc", 0xc000, 0x1000, 0xd4927560 )
	ROM_LOAD( "vic1.7c",  0xd000, 0x1000, 0x059efab5 )
	ROM_LOAD( "vic1.7d",  0xe000, 0x1000, 0x82c4767c )
	ROM_LOAD( "vic1.7e",  0xf000, 0x1000, 0xa19be034 )

	ROM_REGION( 0x1e0, REGION_PROMS, 0 )
	ROM_LOAD( "hsc17l",   0x0000, 0x0100, 0xb2c75dee )
	ROM_LOAD( "hsc13e",   0x0100, 0x0020, 0xa107c4f5 )
	ROM_LOAD( "hsc16a",   0x0120, 0x0020, 0x5f06ad26 )
	ROM_LOAD( "hsc19b",   0x0140, 0x0020, 0x86165f1e )
	ROM_LOAD( "hsc19c",   0x0160, 0x0020, 0xfd27a57a )
	ROM_LOAD( "hsc19d",   0x0180, 0x0020, 0x09c4dbf6 )
	ROM_LOAD( "hsc19e",   0x01a0, 0x0020, 0xce1464f4 )
	ROM_LOAD( "3j",       0x01c0, 0x0020, 0x5fb6b158 )
ROM_END


ROM_START( victorba )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "j2.rom",  0x0000, 0x1000, 0xdd788e93 )
	ROM_LOAD( "k2.rom",  0x1000, 0x1000, 0xf47bf046 )
	ROM_LOAD( "kl2.rom", 0x2000, 0x1000, 0xbaef885e )
	ROM_LOAD( "l2.rom",  0x3000, 0x1000, 0x739e4799 )
	ROM_LOAD( "m2.rom",  0x4000, 0x1000, 0xa88185e6 )
	ROM_LOAD( "n2.rom",  0x5000, 0x1000, 0x6724eb01 )
	ROM_LOAD( "p2.rom",  0x6000, 0x1000, 0x2cf34ad7 )
	ROM_LOAD( "t2.rom",  0x7000, 0x1000, 0x89bb0359 )
	ROM_LOAD( "j1.rom",  0x8000, 0x1000, 0x5e415084 )
	ROM_LOAD( "k1.rom",  0x9000, 0x1000, 0x3f327dff )
	ROM_LOAD( "kl1.rom", 0xa000, 0x1000, 0x6c82ebca )
	ROM_LOAD( "l1.rom",  0xb000, 0x1000, 0x03b89d8a )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "vic1.7bc", 0xc000, 0x1000, 0xd4927560 )
	ROM_LOAD( "vic1.7c",  0xd000, 0x1000, 0x059efab5 )
	ROM_LOAD( "vic1.7d",  0xe000, 0x1000, 0x82c4767c )
	ROM_LOAD( "vic1.7e",  0xf000, 0x1000, 0xa19be034 )

	ROM_REGION( 0x1e0, REGION_PROMS, 0 )
	ROM_LOAD( "hsc17l",   0x0000, 0x0100, 0xb2c75dee )
	ROM_LOAD( "hsc13e",   0x0100, 0x0020, 0xa107c4f5 )
	ROM_LOAD( "hsc16a",   0x0120, 0x0020, 0x5f06ad26 )
	ROM_LOAD( "hsc19b",   0x0140, 0x0020, 0x86165f1e )
	ROM_LOAD( "hsc19c",   0x0160, 0x0020, 0xfd27a57a )
	ROM_LOAD( "hsc19d",   0x0180, 0x0020, 0x09c4dbf6 )
	ROM_LOAD( "hsc19e",   0x01a0, 0x0020, 0xce1464f4 )
	ROM_LOAD( "3j",       0x01c0, 0x0020, 0x5fb6b158 )
ROM_END



/*************************************
 *
 *	Game drivers
 *
 *************************************/

GAME( 1982, victory,  0,        victory, victory, 0,     ROT0, "Exidy", "Victory" )
GAME( 1982, victorba, victory,  victory, victory, 0,     ROT0, "Exidy", "Victor Banana" )
