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https://github.com/holub/mame
synced 2025-05-29 00:53:09 +03:00
Various improvements to the Speed Attack driver [Angelo Salese]
* 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
parent
6dee83b373
commit
13e382190d
@ -77,13 +77,15 @@ PS / PD : key matrix
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#include "driver.h"
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#include "cpu/z80/z80.h"
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#include "sound/ay8910.h"
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#include "video/mc6845.h"
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static UINT8 mux_data;
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static UINT8 km_status,coin_settings;
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#define MASTER_CLOCK XTAL_12MHz
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extern WRITE8_HANDLER( speedatk_videoram_w );
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extern WRITE8_HANDLER( speedatk_colorram_w );
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extern WRITE8_HANDLER( speedatk_videoregs_w );
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extern PALETTE_INIT( speedatk );
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extern VIDEO_START( speedatk );
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extern VIDEO_UPDATE( speedatk );
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@ -165,10 +167,20 @@ static READ8_HANDLER( key_matrix_status_r )
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return (km_status & 0xfe) | 1;
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}
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/*
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high four bits are for command, low four are for param
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My guess is that the other commands configs the key matrix, it probably needs some tests on the real thing.
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1f
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3f
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41
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61
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8x coinage setting command
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a1
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*/
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static WRITE8_HANDLER( key_matrix_status_w )
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{
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km_status = data;
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if(km_status & 0x80 && km_status < 0xa0)
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if((km_status & 0xf0) == 0x80) //coinage setting command
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coin_settings = km_status & 0xf;
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}
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@ -176,24 +188,19 @@ static ADDRESS_MAP_START( speedatk_mem, ADDRESS_SPACE_PROGRAM, 8 )
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AM_RANGE(0x0000, 0x7fff) AM_ROM
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AM_RANGE(0x8000, 0x8000) AM_READWRITE(key_matrix_r,key_matrix_w)
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AM_RANGE(0x8001, 0x8001) AM_READWRITE(key_matrix_status_r,key_matrix_status_w)
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AM_RANGE(0x8800, 0x8bff) AM_RAM
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AM_RANGE(0x8800, 0x8fff) AM_RAM
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AM_RANGE(0xa000, 0xa3ff) AM_RAM_WRITE(speedatk_videoram_w) AM_BASE(&videoram)
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AM_RANGE(0xb000, 0xb3ff) AM_RAM_WRITE(speedatk_colorram_w) AM_BASE(&colorram)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( speedatk_io, ADDRESS_SPACE_IO, 8 )
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x00, 0x01) AM_WRITE(speedatk_videoregs_w) // HD46505SP video registers
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AM_RANGE(0x24, 0x24) AM_WRITENOP //video timing
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AM_RANGE(0x40, 0x40) AM_READ_PORT("DSW") /* likely ay8910 input port, not direct */
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AM_RANGE(0x00, 0x00) AM_DEVWRITE("crtc", mc6845_address_w)
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AM_RANGE(0x01, 0x01) AM_DEVWRITE("crtc", mc6845_register_w)
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AM_RANGE(0x24, 0x24) AM_WRITE(watchdog_reset_w) //watchdog
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AM_RANGE(0x40, 0x40) AM_DEVREAD("ay", ay8910_r)
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AM_RANGE(0x40, 0x41) AM_DEVWRITE("ay", ay8910_address_data_w)
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/*Used only during attract mode,unknown meaning.*/
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AM_RANGE(0x60, 0x60) AM_READWRITE(SMH_NOP,SMH_NOP)//write the result to $62/$65
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AM_RANGE(0x61, 0x61) AM_READNOP//write the result to $66
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AM_RANGE(0x62, 0x62) AM_WRITENOP
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AM_RANGE(0x65, 0x65) AM_WRITENOP
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AM_RANGE(0x66, 0x66) AM_WRITENOP
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AM_RANGE(0x68, 0x68) AM_READNOP//bit 7 controls writings to ram address at $880f-$8810
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//what's 60-6f for? Seems used only in attract mode...
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ADDRESS_MAP_END
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static INPUT_PORTS_START( speedatk )
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@ -220,28 +227,28 @@ static INPUT_PORTS_START( speedatk )
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PORT_DIPSETTING( 0xc0, "1 Coin/10 Credits" )
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PORT_START("P1")
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PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) //P1 A
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PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) //P1 B
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PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) //P1 C
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PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(1) //P1 D
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PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
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PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_NAME("P1 A") PORT_CODE(KEYCODE_Z)
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PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_NAME("P1 B") PORT_CODE(KEYCODE_X)
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PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_NAME("P1 C") PORT_CODE(KEYCODE_C)
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PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(1) PORT_NAME("P1 D") PORT_CODE(KEYCODE_V)
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PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(1) PORT_NAME("P1 Left") PORT_CODE(KEYCODE_A)
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PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_START1 )
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PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
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PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_PLAYER(1) PORT_NAME("P1 Right") PORT_CODE(KEYCODE_S)
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PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_START2 )
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PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(1) //P1 Turn
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PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_PLAYER(1) PORT_NAME("P1 Turn") PORT_CODE(KEYCODE_Q)
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PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED )
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PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED )
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PORT_START("P2")
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PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) //P2 A
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PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) //P2 B
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PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2) //P2 C
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PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(2) //P2 D
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PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
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PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 A")
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PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 B")
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PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_NAME("P2 C")
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PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(2) PORT_NAME("P2 D")
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PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(2) PORT_NAME("P2 Left")
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PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_UNUSED )
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PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
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PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_PLAYER(2) PORT_NAME("P2 Right")
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PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_UNUSED )
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PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_PLAYER(2) //P2 Turn
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PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_PLAYER(2) PORT_NAME("P2 Turn")
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PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNUSED )
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PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_UNUSED )
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@ -278,19 +285,55 @@ static GFXDECODE_START( speedatk )
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GFXDECODE_ENTRY( "gfx2", 0, charlayout_3bpp, 0, 32 )
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GFXDECODE_END
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static const mc6845_interface mc6845_intf =
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{
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"screen", /* screen we are acting on */
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8, /* number of pixels per video memory address */
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NULL, /* before pixel update callback */
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NULL, /* row update callback */
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NULL, /* after pixel update callback */
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DEVCB_NULL, /* callback for display state changes */
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DEVCB_NULL, /* callback for cursor state changes */
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DEVCB_NULL, /* HSYNC callback */
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DEVCB_NULL, /* VSYNC callback */
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NULL /* update address callback */
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};
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static WRITE8_DEVICE_HANDLER( speedatk_output_w )
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{
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//flip_screen_set(device->machine, data & 0x80); //breaks the video emulation?
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//if((data & 0x7f) != 0x7f)
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//popmessage("%02x",data);
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}
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static const ay8910_interface ay8910_config =
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{
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AY8910_LEGACY_OUTPUT,
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AY8910_DEFAULT_LOADS,
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DEVCB_NULL,
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DEVCB_INPUT_PORT("DSW"),
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DEVCB_HANDLER(speedatk_output_w),
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DEVCB_NULL
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};
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static MACHINE_DRIVER_START( speedatk )
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MDRV_CPU_ADD("maincpu", Z80,12000000/2)
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MDRV_CPU_ADD("maincpu", Z80,MASTER_CLOCK/2) //divider is unknown
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MDRV_CPU_PROGRAM_MAP(speedatk_mem)
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MDRV_CPU_IO_MAP(speedatk_io)
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MDRV_CPU_VBLANK_INT("screen", irq0_line_hold)
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MDRV_WATCHDOG_VBLANK_INIT(8) // timing is unknown
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/* video hardware */
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MDRV_SCREEN_ADD("screen", RASTER)
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MDRV_SCREEN_REFRESH_RATE(60)
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MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
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MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
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MDRV_SCREEN_SIZE(320, 256)
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MDRV_SCREEN_VISIBLE_AREA(0*8, 34*8-1, 0*8, 29*8-1)
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MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
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MDRV_MC6845_ADD("crtc", H46505, MASTER_CLOCK/16, mc6845_intf) /* hand tuned to get ~60 fps */
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MDRV_GFXDECODE(speedatk)
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MDRV_PALETTE_LENGTH(0x100)
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@ -302,8 +345,9 @@ static MACHINE_DRIVER_START( speedatk )
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/* sound hardware */
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MDRV_SPEAKER_STANDARD_MONO("mono")
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MDRV_SOUND_ADD("ay", AY8910, 4000000)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
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MDRV_SOUND_ADD("ay", AY8910, MASTER_CLOCK/4) //divider is unknown
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MDRV_SOUND_CONFIG(ay8910_config)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
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MACHINE_DRIVER_END
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ROM_START( speedatk )
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@ -327,5 +371,5 @@ ROM_START( speedatk )
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ROM_LOAD( "cb2.bpr", 0x0020, 0x0100, CRC(a604cf96) SHA1(a4ef6e77dcd3abe4c27e8e636222a5ee711a51f5) ) /* lookup table */
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ROM_END
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GAME( 1984, speedatk, 0, speedatk, speedatk, 0, ROT0, "Seta Kikaku Corp.", "Speed Attack! (Japan)", 0 )
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GAME( 1984, speedatk, 0, speedatk, speedatk, 0, ROT0, "Seta Kikaku Corp.", "Speed Attack! (Japan)", GAME_NO_COCKTAIL )
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@ -85,27 +85,6 @@ WRITE8_HANDLER( speedatk_colorram_w )
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tilemap_mark_tile_dirty(bg_tilemap, offset);
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}
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WRITE8_HANDLER( speedatk_videoregs_w )
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{
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static UINT8 address;
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if(offset == 0)
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address = data;
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else
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{
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switch(address)
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{
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/*temporary hook-up.*/
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case 0x0d:
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flip_screen_set(space->machine, data & 8);
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tilemap_set_scrolldx(bg_tilemap,0,data & 0x40);
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break;
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default:
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logerror("Video Register %02x called with %02x data\n",address,data);
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}
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}
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}
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static TILE_GET_INFO( get_tile_info )
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{
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int code, color, region;
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@ -119,7 +98,7 @@ static TILE_GET_INFO( get_tile_info )
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VIDEO_START( speedatk )
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{
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bg_tilemap = tilemap_create(machine, get_tile_info,tilemap_scan_rows,8,8,34,32);
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bg_tilemap = tilemap_create(machine, get_tile_info,tilemap_scan_rows,8,8,34,30);
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}
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VIDEO_UPDATE( speedatk )
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