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Various improvements to the Speed Attack driver [Angelo Salese]

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* Hooked up basic mc6845 crtc, fixing resolution and refresh rate;
* Added the watchdog;
* Corrected system clock;
* Removed a video quirkness (tilemap h/w values were bigger than its VRAM) and cleaned up some other minor stuff;
This commit is contained in:
Angelo Salese 2009-07-28 20:39:30 +00:00
parent 6dee83b373
commit 13e382190d
2 changed files with 77 additions and 54 deletions
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108
src/mame/drivers/speedatk.c
View File

@ -77,13 +77,15 @@ PS / PD : key matrix
#include "driver.h" #include "driver.h"
#include "cpu/z80/z80.h" #include "cpu/z80/z80.h"
#include "sound/ay8910.h" #include "sound/ay8910.h"
#include "video/mc6845.h"
static UINT8 mux_data; static UINT8 mux_data;
static UINT8 km_status,coin_settings; static UINT8 km_status,coin_settings;
#define MASTER_CLOCK XTAL_12MHz
extern WRITE8_HANDLER( speedatk_videoram_w ); extern WRITE8_HANDLER( speedatk_videoram_w );
extern WRITE8_HANDLER( speedatk_colorram_w ); extern WRITE8_HANDLER( speedatk_colorram_w );
extern WRITE8_HANDLER( speedatk_videoregs_w );
extern PALETTE_INIT( speedatk ); extern PALETTE_INIT( speedatk );
extern VIDEO_START( speedatk ); extern VIDEO_START( speedatk );
extern VIDEO_UPDATE( speedatk ); extern VIDEO_UPDATE( speedatk );
@ -165,10 +167,20 @@ static READ8_HANDLER( key_matrix_status_r )
return (km_status & 0xfe) | 1; return (km_status & 0xfe) | 1;
} }
/*
high four bits are for command, low four are for param
My guess is that the other commands configs the key matrix, it probably needs some tests on the real thing.
1f
3f
41
61
8x coinage setting command
a1
*/
static WRITE8_HANDLER( key_matrix_status_w ) static WRITE8_HANDLER( key_matrix_status_w )
{ {
km_status = data; km_status = data;
if(km_status & 0x80 && km_status < 0xa0) if((km_status & 0xf0) == 0x80) //coinage setting command
coin_settings = km_status & 0xf; coin_settings = km_status & 0xf;
} }
@ -176,24 +188,19 @@ static ADDRESS_MAP_START( speedatk_mem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_ROM AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0x8000, 0x8000) AM_READWRITE(key_matrix_r,key_matrix_w) AM_RANGE(0x8000, 0x8000) AM_READWRITE(key_matrix_r,key_matrix_w)
AM_RANGE(0x8001, 0x8001) AM_READWRITE(key_matrix_status_r,key_matrix_status_w) AM_RANGE(0x8001, 0x8001) AM_READWRITE(key_matrix_status_r,key_matrix_status_w)
AM_RANGE(0x8800, 0x8bff) AM_RAM AM_RANGE(0x8800, 0x8fff) AM_RAM
AM_RANGE(0xa000, 0xa3ff) AM_RAM_WRITE(speedatk_videoram_w) AM_BASE(&videoram) AM_RANGE(0xa000, 0xa3ff) AM_RAM_WRITE(speedatk_videoram_w) AM_BASE(&videoram)
AM_RANGE(0xb000, 0xb3ff) AM_RAM_WRITE(speedatk_colorram_w) AM_BASE(&colorram) AM_RANGE(0xb000, 0xb3ff) AM_RAM_WRITE(speedatk_colorram_w) AM_BASE(&colorram)
ADDRESS_MAP_END ADDRESS_MAP_END
static ADDRESS_MAP_START( speedatk_io, ADDRESS_SPACE_IO, 8 ) static ADDRESS_MAP_START( speedatk_io, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff) ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x01) AM_WRITE(speedatk_videoregs_w) // HD46505SP video registers AM_RANGE(0x00, 0x00) AM_DEVWRITE("crtc", mc6845_address_w)
AM_RANGE(0x24, 0x24) AM_WRITENOP //video timing AM_RANGE(0x01, 0x01) AM_DEVWRITE("crtc", mc6845_register_w)
AM_RANGE(0x40, 0x40) AM_READ_PORT("DSW") /* likely ay8910 input port, not direct */ AM_RANGE(0x24, 0x24) AM_WRITE(watchdog_reset_w) //watchdog
AM_RANGE(0x40, 0x40) AM_DEVREAD("ay", ay8910_r)
AM_RANGE(0x40, 0x41) AM_DEVWRITE("ay", ay8910_address_data_w) AM_RANGE(0x40, 0x41) AM_DEVWRITE("ay", ay8910_address_data_w)
/*Used only during attract mode,unknown meaning.*/ //what's 60-6f for? Seems used only in attract mode...
AM_RANGE(0x60, 0x60) AM_READWRITE(SMH_NOP,SMH_NOP)//write the result to $62/$65
AM_RANGE(0x61, 0x61) AM_READNOP//write the result to $66
AM_RANGE(0x62, 0x62) AM_WRITENOP
AM_RANGE(0x65, 0x65) AM_WRITENOP
AM_RANGE(0x66, 0x66) AM_WRITENOP
AM_RANGE(0x68, 0x68) AM_READNOP//bit 7 controls writings to ram address at $880f-$8810
ADDRESS_MAP_END ADDRESS_MAP_END
static INPUT_PORTS_START( speedatk ) static INPUT_PORTS_START( speedatk )
@ -220,28 +227,28 @@ static INPUT_PORTS_START( speedatk )
PORT_DIPSETTING( 0xc0, "1 Coin/10 Credits" ) PORT_DIPSETTING( 0xc0, "1 Coin/10 Credits" )
PORT_START("P1") PORT_START("P1")
PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) //P1 A PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_NAME("P1 A") PORT_CODE(KEYCODE_Z)
PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) //P1 B PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_NAME("P1 B") PORT_CODE(KEYCODE_X)
PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) //P1 C PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_NAME("P1 C") PORT_CODE(KEYCODE_C)
PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(1) //P1 D PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(1) PORT_NAME("P1 D") PORT_CODE(KEYCODE_V)
PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1) PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(1) PORT_NAME("P1 Left") PORT_CODE(KEYCODE_A)
PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_START1 ) PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1) PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_PLAYER(1) PORT_NAME("P1 Right") PORT_CODE(KEYCODE_S)
PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_START2 ) PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(1) //P1 Turn PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_PLAYER(1) PORT_NAME("P1 Turn") PORT_CODE(KEYCODE_Q)
PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("P2") PORT_START("P2")
PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) //P2 A PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 A")
PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) //P2 B PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 B")
PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2) //P2 C PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_NAME("P2 C")
PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(2) //P2 D PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(2) PORT_NAME("P2 D")
PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2) PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(2) PORT_NAME("P2 Left")
PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2) PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_PLAYER(2) PORT_NAME("P2 Right")
PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(2) //P2 Turn PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_PLAYER(2) PORT_NAME("P2 Turn")
PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED )
@ -278,19 +285,55 @@ static GFXDECODE_START( speedatk )
GFXDECODE_ENTRY( "gfx2", 0, charlayout_3bpp, 0, 32 ) GFXDECODE_ENTRY( "gfx2", 0, charlayout_3bpp, 0, 32 )
GFXDECODE_END GFXDECODE_END
static const mc6845_interface mc6845_intf =
{
"screen", /* screen we are acting on */
8, /* number of pixels per video memory address */
NULL, /* before pixel update callback */
NULL, /* row update callback */
NULL, /* after pixel update callback */
DEVCB_NULL, /* callback for display state changes */
DEVCB_NULL, /* callback for cursor state changes */
DEVCB_NULL, /* HSYNC callback */
DEVCB_NULL, /* VSYNC callback */
NULL /* update address callback */
};
static WRITE8_DEVICE_HANDLER( speedatk_output_w )
{
//flip_screen_set(device->machine, data & 0x80); //breaks the video emulation?
//if((data & 0x7f) != 0x7f)
//popmessage("%02x",data);
}
static const ay8910_interface ay8910_config =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
DEVCB_NULL,
DEVCB_INPUT_PORT("DSW"),
DEVCB_HANDLER(speedatk_output_w),
DEVCB_NULL
};
static MACHINE_DRIVER_START( speedatk ) static MACHINE_DRIVER_START( speedatk )
MDRV_CPU_ADD("maincpu", Z80,12000000/2) MDRV_CPU_ADD("maincpu", Z80,MASTER_CLOCK/2) //divider is unknown
MDRV_CPU_PROGRAM_MAP(speedatk_mem) MDRV_CPU_PROGRAM_MAP(speedatk_mem)
MDRV_CPU_IO_MAP(speedatk_io) MDRV_CPU_IO_MAP(speedatk_io)
MDRV_CPU_VBLANK_INT("screen", irq0_line_hold) MDRV_CPU_VBLANK_INT("screen", irq0_line_hold)
MDRV_WATCHDOG_VBLANK_INIT(8) // timing is unknown
/* video hardware */ /* video hardware */
MDRV_SCREEN_ADD("screen", RASTER) MDRV_SCREEN_ADD("screen", RASTER)
MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(320, 256) MDRV_SCREEN_SIZE(320, 256)
MDRV_SCREEN_VISIBLE_AREA(0*8, 34*8-1, 0*8, 29*8-1) MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
MDRV_MC6845_ADD("crtc", H46505, MASTER_CLOCK/16, mc6845_intf) /* hand tuned to get ~60 fps */
MDRV_GFXDECODE(speedatk) MDRV_GFXDECODE(speedatk)
MDRV_PALETTE_LENGTH(0x100) MDRV_PALETTE_LENGTH(0x100)
@ -302,8 +345,9 @@ static MACHINE_DRIVER_START( speedatk )
/* sound hardware */ /* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono") MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD("ay", AY8910, 4000000) MDRV_SOUND_ADD("ay", AY8910, MASTER_CLOCK/4) //divider is unknown
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) MDRV_SOUND_CONFIG(ay8910_config)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
MACHINE_DRIVER_END MACHINE_DRIVER_END
ROM_START( speedatk ) ROM_START( speedatk )
@ -327,5 +371,5 @@ ROM_START( speedatk )
ROM_LOAD( "cb2.bpr", 0x0020, 0x0100, CRC(a604cf96) SHA1(a4ef6e77dcd3abe4c27e8e636222a5ee711a51f5) ) /* lookup table */ ROM_LOAD( "cb2.bpr", 0x0020, 0x0100, CRC(a604cf96) SHA1(a4ef6e77dcd3abe4c27e8e636222a5ee711a51f5) ) /* lookup table */
ROM_END ROM_END
GAME( 1984, speedatk, 0, speedatk, speedatk, 0, ROT0, "Seta Kikaku Corp.", "Speed Attack! (Japan)", 0 ) GAME( 1984, speedatk, 0, speedatk, speedatk, 0, ROT0, "Seta Kikaku Corp.", "Speed Attack! (Japan)", GAME_NO_COCKTAIL )

23
src/mame/video/speedatk.c
View File

@ -85,27 +85,6 @@ WRITE8_HANDLER( speedatk_colorram_w )
tilemap_mark_tile_dirty(bg_tilemap, offset); tilemap_mark_tile_dirty(bg_tilemap, offset);
} }
WRITE8_HANDLER( speedatk_videoregs_w )
{
static UINT8 address;
if(offset == 0)
address = data;
else
{
switch(address)
{
/*temporary hook-up.*/
case 0x0d:
flip_screen_set(space->machine, data & 8);
tilemap_set_scrolldx(bg_tilemap,0,data & 0x40);
break;
default:
logerror("Video Register %02x called with %02x data\n",address,data);
}
}
}
static TILE_GET_INFO( get_tile_info ) static TILE_GET_INFO( get_tile_info )
{ {
int code, color, region; int code, color, region;
@ -119,7 +98,7 @@ static TILE_GET_INFO( get_tile_info )
VIDEO_START( speedatk ) VIDEO_START( speedatk )
{ {
bg_tilemap = tilemap_create(machine, get_tile_info,tilemap_scan_rows,8,8,34,32); bg_tilemap = tilemap_create(machine, get_tile_info,tilemap_scan_rows,8,8,34,30);
} }
VIDEO_UPDATE( speedatk ) VIDEO_UPDATE( speedatk )