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Cleaned up brkthru/darwin memory maps.

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Changed both games to use identical video timing parameters based on measurements of darwin.
Guessed based on available information at the master clock and derived all game clocks from it.
This commit is contained in:
Aaron Giles 2008-01-09 07:06:55 +00:00
parent 29f2a7862a
commit 16c5f688fa
1 changed files with 53 additions and 72 deletions
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125
src/mame/drivers/brkthru.c
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@ -51,6 +51,9 @@ Sound: YM2203 and YM3526 driven by 6809. Sound added by Bryan McPhail, 1/4/98.
#include "sound/3812intf.h"
#define MASTER_CLOCK XTAL_12MHz
//UINT8 *brkthru_nmi_enable; /* needs to be tracked down */
extern UINT8 *brkthru_videoram;
extern size_t brkthru_videoram_size;
@ -89,71 +92,52 @@ static WRITE8_HANDLER( brkthru_soundlatch_w )
static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x03ff) AM_READ(MRA8_RAM) /* Plane 0: Text */
AM_RANGE(0x0400, 0x0bff) AM_READ(MRA8_RAM)
AM_RANGE(0x0c00, 0x0fff) AM_READ(MRA8_RAM) /* Plane 2 Background */
AM_RANGE(0x1000, 0x10ff) AM_READ(MRA8_RAM) /* Plane 1: Sprites */
AM_RANGE(0x1100, 0x17ff) AM_READ(MRA8_RAM)
static ADDRESS_MAP_START( brkthru_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x03ff) AM_READWRITE(MRA8_RAM, brkthru_fgram_w) AM_BASE(&brkthru_videoram) AM_SIZE(&brkthru_videoram_size)
AM_RANGE(0x0400, 0x0bff) AM_RAM
AM_RANGE(0x0c00, 0x0fff) AM_READWRITE(MRA8_RAM, brkthru_bgram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x1000, 0x10ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
AM_RANGE(0x1100, 0x17ff) AM_RAM
AM_RANGE(0x1800, 0x1800) AM_READ(input_port_0_r) /* player controls, player start */
AM_RANGE(0x1801, 0x1801) AM_READ(input_port_1_r) /* cocktail player controls */
AM_RANGE(0x1802, 0x1802) AM_READ(input_port_3_r) /* DSW 0 */
AM_RANGE(0x1803, 0x1803) AM_READ(input_port_2_r) /* coin input & DSW */
AM_RANGE(0x2000, 0x3fff) AM_READ(MRA8_BANK1)
AM_RANGE(0x4000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END
static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x03ff) AM_WRITE(brkthru_fgram_w) AM_BASE(&brkthru_videoram) AM_SIZE(&brkthru_videoram_size)
AM_RANGE(0x0400, 0x0bff) AM_WRITE(MWA8_RAM)
AM_RANGE(0x0c00, 0x0fff) AM_WRITE(brkthru_bgram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x1000, 0x10ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
AM_RANGE(0x1100, 0x17ff) AM_WRITE(MWA8_RAM)
AM_RANGE(0x1800, 0x1801) AM_WRITE(brkthru_1800_w) /* bg scroll and color, ROM bank selection, flip screen */
AM_RANGE(0x1802, 0x1802) AM_WRITE(brkthru_soundlatch_w)
AM_RANGE(0x1803, 0x1803) AM_WRITE(brkthru_1803_w) /* NMI enable, + ? */
AM_RANGE(0x2000, 0xffff) AM_WRITE(MWA8_ROM)
AM_RANGE(0x2000, 0x3fff) AM_ROMBANK(1)
AM_RANGE(0x4000, 0xffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( darwin_readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x1000, 0x13ff) AM_READ(MRA8_RAM) /* Plane 0: Text */
AM_RANGE(0x0400, 0x07ff) AM_READ(MRA8_RAM)
AM_RANGE(0x1c00, 0x1fff) AM_READ(MRA8_RAM) /* Plane 2 Background */
AM_RANGE(0x0000, 0x00ff) AM_READ(MRA8_RAM) /* Plane 1: Sprites */
AM_RANGE(0x1400, 0x1bff) AM_READ(MRA8_RAM)
/* same as brktrhu, but xor 0x1000 below 8k */
static ADDRESS_MAP_START( darwin_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x1000, 0x13ff) AM_READWRITE(MRA8_RAM, brkthru_fgram_w) AM_BASE(&brkthru_videoram) AM_SIZE(&brkthru_videoram_size)
AM_RANGE(0x1400, 0x1bff) AM_RAM
AM_RANGE(0x1c00, 0x1fff) AM_READWRITE(MRA8_RAM, brkthru_bgram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x0000, 0x00ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
AM_RANGE(0x0100, 0x01ff) AM_WRITE(MWA8_NOP) /*tidyup, nothing realy here?*/
AM_RANGE(0x0800, 0x0800) AM_READ(input_port_0_r) /* player controls, player start */
AM_RANGE(0x0801, 0x0801) AM_READ(input_port_1_r) /* cocktail player controls */
AM_RANGE(0x0802, 0x0802) AM_READ(input_port_3_r) /* DSW 0 */
AM_RANGE(0x0803, 0x0803) AM_READ(input_port_2_r) /* coin input & DSW */
AM_RANGE(0x2000, 0x3fff) AM_READ(MRA8_BANK1)
AM_RANGE(0x4000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END
static ADDRESS_MAP_START( darwin_writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x1000, 0x13ff) AM_WRITE(brkthru_fgram_w) AM_BASE(&brkthru_videoram) AM_SIZE(&brkthru_videoram_size)
AM_RANGE(0x1c00, 0x1fff) AM_WRITE(brkthru_bgram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x0000, 0x00ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
AM_RANGE(0x1400, 0x1bff) AM_WRITE(MWA8_RAM)
AM_RANGE(0x0100, 0x01ff) AM_WRITE(MWA8_NOP) /*tidyup, nothing realy here?*/
AM_RANGE(0x0800, 0x0801) AM_WRITE(brkthru_1800_w) /* bg scroll and color, ROM bank selection, flip screen */
AM_RANGE(0x0802, 0x0802) AM_WRITE(brkthru_soundlatch_w)
AM_RANGE(0x0803, 0x0803) AM_WRITE(darwin_0803_w) /* NMI enable, + ? */
AM_RANGE(0x2000, 0xffff) AM_WRITE(MWA8_ROM)
AM_RANGE(0x2000, 0x3fff) AM_ROMBANK(1)
AM_RANGE(0x4000, 0xffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_READ(MRA8_RAM)
AM_RANGE(0x4000, 0x4000) AM_READ(soundlatch_r)
AM_RANGE(0x6000, 0x6000) AM_READ(YM2203_status_port_0_r)
AM_RANGE(0x8000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_WRITE(MWA8_RAM)
static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_RAM
AM_RANGE(0x2000, 0x2000) AM_WRITE(YM3526_control_port_0_w)
AM_RANGE(0x2001, 0x2001) AM_WRITE(YM3526_write_port_0_w)
AM_RANGE(0x4000, 0x4000) AM_READ(soundlatch_r)
AM_RANGE(0x6000, 0x6000) AM_READ(YM2203_status_port_0_r)
AM_RANGE(0x6000, 0x6000) AM_WRITE(YM2203_control_port_0_w)
AM_RANGE(0x6001, 0x6001) AM_WRITE(YM2203_write_port_0_w)
AM_RANGE(0x8000, 0xffff) AM_WRITE(MWA8_ROM)
AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
@ -415,25 +399,23 @@ static const struct YM3526interface ym3526_interface =
static MACHINE_DRIVER_START( brkthru )
/* basic machine hardware */
MDRV_CPU_ADD(M6809, 1250000) /* 1.25 MHz ? */
MDRV_CPU_PROGRAM_MAP(readmem,writemem)
MDRV_CPU_ADD(M6809, MASTER_CLOCK/8) /* 1.5 MHz ? */
MDRV_CPU_PROGRAM_MAP(brkthru_map,0)
MDRV_CPU_VBLANK_INT(brkthru_interrupt,2)
MDRV_CPU_ADD(M6809, 1250000)
/* audio CPU */ /* 1.25 MHz ? */
MDRV_CPU_PROGRAM_MAP(sound_readmem,sound_writemem)
MDRV_SCREEN_REFRESH_RATE(58)
MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_60HZ_VBLANK_DURATION /* frames per second, vblank duration (not sure) */)
MDRV_CPU_ADD(M6809, MASTER_CLOCK/8) /* 1.5 MHz ? */
MDRV_CPU_PROGRAM_MAP(sound_map,0)
/* video hardware */
MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(32*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 1*8, 31*8-1) /* not sure */
MDRV_GFXDECODE(brkthru)
MDRV_PALETTE_LENGTH(256)
/* not sure; assuming to be the same as darwin */
MDRV_SCREEN_ADD("main", 0)
MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/2, 384, 8, 248, 272, 8, 248)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_PALETTE_INIT(brkthru)
MDRV_VIDEO_START(brkthru)
MDRV_VIDEO_UPDATE(brkthru)
@ -441,30 +423,35 @@ static MACHINE_DRIVER_START( brkthru )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD(YM2203, 1500000)
MDRV_SOUND_ADD(YM2203, MASTER_CLOCK/8)
MDRV_SOUND_ROUTE(0, "mono", 0.10)
MDRV_SOUND_ROUTE(1, "mono", 0.10)
MDRV_SOUND_ROUTE(2, "mono", 0.10)
MDRV_SOUND_ROUTE(3, "mono", 0.50)
MDRV_SOUND_ADD(YM3526, 3000000)
MDRV_SOUND_ADD(YM3526, MASTER_CLOCK/4)
MDRV_SOUND_CONFIG(ym3526_interface)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END
static MACHINE_DRIVER_START( darwin )
/* basic machine hardware */
MDRV_CPU_ADD(M6809, 1500000) /* 1.25 MHz ? */
MDRV_CPU_PROGRAM_MAP(darwin_readmem,darwin_writemem)
MDRV_CPU_ADD(M6809, MASTER_CLOCK/8) /* 1.5 MHz ? */
MDRV_CPU_PROGRAM_MAP(darwin_map,0)
MDRV_CPU_VBLANK_INT(brkthru_interrupt,2)
MDRV_CPU_ADD(M6809, 1500000)
/* audio CPU */ /* 1.25 MHz ? */
MDRV_CPU_PROGRAM_MAP(sound_readmem,sound_writemem)
MDRV_CPU_ADD(M6809, MASTER_CLOCK/8) /* 1.5 MHz ? */
MDRV_CPU_PROGRAM_MAP(sound_map,0)
MDRV_SCREEN_REFRESH_RATE(15625.0/272)
MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_60HZ_VBLANK_DURATION)
/* video hardware */
MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
MDRV_GFXDECODE(brkthru)
MDRV_PALETTE_LENGTH(256)
MDRV_SCREEN_ADD("main", 0)
MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/2, 384, 8, 248, 272, 8, 248)
/* frames per second, vblank duration
Horizontal video frequency:
HSync = Dot Clock / Horizontal Frame Length
@ -477,14 +464,7 @@ static MACHINE_DRIVER_START( darwin )
= 15.625kHz / (240 + 32)
= 57.444855Hz
tuned by Shingo SUZUKI(VSyncMAME Project) 2000/10/19 */
/* video hardware */
MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(32*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 1*8, 31*8-1)
MDRV_GFXDECODE(brkthru)
MDRV_PALETTE_LENGTH(256)
MDRV_PALETTE_INIT(brkthru)
MDRV_VIDEO_START(brkthru)
@ -493,18 +473,19 @@ static MACHINE_DRIVER_START( darwin )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD(YM2203, 1500000)
MDRV_SOUND_ADD(YM2203, MASTER_CLOCK/8)
MDRV_SOUND_ROUTE(0, "mono", 0.10)
MDRV_SOUND_ROUTE(1, "mono", 0.10)
MDRV_SOUND_ROUTE(2, "mono", 0.10)
MDRV_SOUND_ROUTE(3, "mono", 0.50)
MDRV_SOUND_ADD(YM3526, 3000000)
MDRV_SOUND_ADD(YM3526, MASTER_CLOCK/4)
MDRV_SOUND_CONFIG(ym3526_interface)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END
/***************************************************************************
Game driver(s)