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Fixed NMI on Mad Alien sound CPU. This fixes shot sound and various other sound glitches.

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Marked madalien and madalina as Imperfect Graphics.  They are missing an effect.  When you shoot an enemy in the dark, the whole screen lights up.  Basically the headlights fill the whole screen.

credit Guru, Derrick Renaud
This commit is contained in:
Derrick Renaud 2008-08-12 03:51:29 +00:00
parent d5d5d9449b
commit 0ec9cda36e
2 changed files with 5 additions and 5 deletions
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8
src/mame/drivers/madalien.c
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@ -12,7 +12,7 @@
#include "madalien.h" #include "madalien.h"
#define SOUND_CLOCK 4000000 #define SOUND_CLOCK XTAL_4MHz
static UINT8 *shift_hi; static UINT8 *shift_hi;
@ -180,7 +180,7 @@ static MACHINE_DRIVER_START( madalien )
MDRV_CPU_ADD("audio", M6502, SOUND_CLOCK / 8) /* 512kHz */ MDRV_CPU_ADD("audio", M6502, SOUND_CLOCK / 8) /* 512kHz */
MDRV_CPU_PROGRAM_MAP(audio_map, 0) MDRV_CPU_PROGRAM_MAP(audio_map, 0)
MDRV_CPU_PERIODIC_INT(nmi_line_pulse, 800) /* unknown due to incomplete schematics */ MDRV_CPU_VBLANK_INT("main", nmi_line_pulse)
/* video hardware */ /* video hardware */
MDRV_IMPORT_FROM(madalien_video) MDRV_IMPORT_FROM(madalien_video)
@ -272,5 +272,5 @@ ROM_END
/* set parent machine inp init */ /* set parent machine inp init */
GAME( 1980, madalien, 0, madalien, madalien, 0, ROT270, "Data East Corporation", "Mad Alien", GAME_SUPPORTS_SAVE ) GAME( 1980, madalien, 0, madalien, madalien, 0, ROT270, "Data East Corporation", "Mad Alien", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
GAME( 1980, madalina, madalien, madalien, madalien, 0, ROT270, "Data East Corporation", "Mad Alien (Highway Chase)", GAME_SUPPORTS_SAVE ) GAME( 1980, madalina, madalien, madalien, madalien, 0, ROT270, "Data East Corporation", "Mad Alien (Highway Chase)", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )

2
src/mame/includes/madalien.h
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@ -9,7 +9,7 @@
#include "sound/discrete.h" #include "sound/discrete.h"
#define MADALIEN_MAIN_CLOCK (10595000) #define MADALIEN_MAIN_CLOCK XTAL_10_595MHz
/*----------- defined in video/madalien.c -----------*/ /*----------- defined in video/madalien.c -----------*/