📄 astrof.c
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/*
Driver For DECO ASTRO FIGHTER/TOMAHAWK 777
Initial Version
Lee Taylor 28/11/1997
Astro Fighter Sets:
The differences are minor. From newest to oldest:
Main Set: 16Kbit ROMs
Green/Hollow empty fuel bar.
60 points for every bomb destroyed.
Set 2: 8Kbit ROMs
Blue/Solid empty fuel bar.
60 points for every bomb destroyed.
Set 3: 8Kbit ROMs
Blue/Solid empty fuel bar.
300 points for every seven bombs destroyed.
To Do!!
Figure out the correct vblank interval. The one I'm using seems to be
ok for Astro Fighter, but the submarine in Tomahawk flickers.
Maybe the video rate should 57FPS as the Burger Time games?
Rotation Support
Also....
I know there must be at least one other rom set for Astro Fighter
I have played one that stoped between waves to show the next enemy
*/
#include "driver.h"
#include "vidhrdw/generic.h"
extern unsigned char *astrof_color;
extern unsigned char *tomahawk_protection;
void astrof_vh_convert_color_prom(unsigned char *palette, unsigned short *colortable,const unsigned char *color_prom);
int astrof_vh_start(void);
void astrof_vh_stop(void);
void astrof_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
void astrof_videoram_w(int offset,int data);
void tomahawk_videoram_w(int offset,int data);
void astrof_video_control1_w(int offset,int data);
void astrof_video_control2_w(int offset,int data);
void tomahawk_video_control2_w(int offset,int data);
int tomahawk_protection_r(int offset);
void astrof_sample1_w(int offset,int data);
void astrof_sample2_w(int offset,int data);
extern struct Samplesinterface astrof_samples_interface;
extern struct Samplesinterface tomahawk_samples_interface;
static struct MemoryReadAddress readmem[] =
{
{ 0x0000, 0x03ff, MRA_RAM },
{ 0x4000, 0x5fff, MRA_RAM },
{ 0xa000, 0xa000, input_port_0_r },
{ 0xa001, 0xa001, input_port_1_r }, /* IN1 */
{ 0xa003, 0xa003, tomahawk_protection_r },
{ 0xd000, 0xffff, MRA_ROM },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress astrof_writemem[] =
{
{ 0x0000, 0x03ff, MWA_RAM },
{ 0x4000, 0x5fff, astrof_videoram_w, &videoram, &videoram_size },
{ 0x8003, 0x8003, MWA_RAM, &astrof_color },
{ 0x8004, 0x8004, astrof_video_control1_w },
{ 0x8005, 0x8005, astrof_video_control2_w },
{ 0x8006, 0x8006, astrof_sample1_w },
{ 0x8007, 0x8007, astrof_sample2_w },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress tomahawk_writemem[] =
{
{ 0x0000, 0x03ff, MWA_RAM },
{ 0x4000, 0x5fff, tomahawk_videoram_w, &videoram, &videoram_size },
{ 0x8003, 0x8003, MWA_RAM, &astrof_color },
{ 0x8004, 0x8004, astrof_video_control1_w },
{ 0x8005, 0x8005, tomahawk_video_control2_w },
{ 0x8006, 0x8006, MWA_NOP },
{ 0x8007, 0x8007, MWA_RAM, &tomahawk_protection },
{ -1 } /* end of table */
};
/***************************************************************************
These games don't have VBlank interrupts.
Interrupts are still used by the game: but they are related to coin
slots.
***************************************************************************/
static int astrof_interrupt(void)
{
if (readinputport(2) & 1) /* Coin */
return nmi_interrupt();
else return ignore_interrupt();
}
INPUT_PORTS_START( astrof_input_ports )
PORT_START /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
/* Player 1 Controls */
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
/* Player 2 Controls */
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY | IPF_COCKTAIL )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY | IPF_COCKTAIL )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )
PORT_START /* DSW0 */
PORT_DIPNAME( 0x03, 0x00, "Lives", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x0c, 0x00, "Coinage", IP_KEY_NONE )
PORT_DIPSETTING( 0x04, "1 Coin/2 Credits" )
PORT_DIPSETTING( 0x00, "1 Coin/1 Credits" )
PORT_DIPSETTING( 0x08, "2 Coins/1 Credit" )
/* 0x0c gives 2 Coins/1 Credit */
PORT_DIPNAME( 0x30, 0x00, "Bonus Life", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "3000" )
PORT_DIPSETTING( 0x10, "5000" )
PORT_DIPSETTING( 0x20, "7000" )
PORT_DIPSETTING( 0x30, "None" )
PORT_DIPNAME( 0x40, 0x00, "Difficulty", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "Easy" )
PORT_DIPSETTING( 0x40, "Hard" )
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )
PORT_START /* FAKE */
/* The coin slots are not memory mapped. Coin insertion causes a NMI. */
/* This fake input port is used by the interrupt */
/* handler to be notified of coin insertions. We use IPF_IMPULSE to */
/* trigger exactly one interrupt, without having to check when the */
/* user releases the key. */
/* The cabinet selector is not memory mapped, but just disables the */
/* screen flip logic */
PORT_BITX(0x01, IP_ACTIVE_HIGH, IPT_COIN1 | IPF_IMPULSE, "Coin", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 1 )
PORT_DIPNAME( 0x02, 0x00, "Cabinet", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "Upright" )
PORT_DIPSETTING( 0x02, "Cocktail" )
INPUT_PORTS_END
INPUT_PORTS_START( tomahawk_input_ports )
PORT_START /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START /* DSW0 */
PORT_DIPNAME( 0x03, 0x00, "Lives", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x0c, 0x00, "Coinage", IP_KEY_NONE )
PORT_DIPSETTING( 0x04, "1 Coin/2 Credits" )
PORT_DIPSETTING( 0x00, "1 Coin/1 Credits" )
PORT_DIPSETTING( 0x08, "2 Coins/1 Credit" )
/* 0x0c gives 2 Coins/1 Credit */
PORT_DIPNAME( 0x30, 0x00, "Bonus Life", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "5000" )
PORT_DIPSETTING( 0x10, "7000" )
PORT_DIPSETTING( 0x20, "10000" )
PORT_DIPSETTING( 0x30, "None" )
PORT_DIPNAME( 0x40, 0x00, "Difficulty", IP_KEY_NONE ) /* Only on Tomahawk 777 */
PORT_DIPSETTING( 0x00, "Easy" )
PORT_DIPSETTING( 0x40, "Hard" )
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )
PORT_START /* FAKE */
/* The coin slots are not memory mapped. Coin insertion causes a NMI. */
/* This fake input port is used by the interrupt */
/* handler to be notified of coin insertions. We use IPF_IMPULSE to */
/* trigger exactly one interrupt, without having to check when the */
/* user releases the key. */
/* The cabinet selector is not memory mapped, but just disables the */
/* screen flip logic */
PORT_BITX(0x01, IP_ACTIVE_HIGH, IPT_COIN1 | IPF_IMPULSE, "Coin", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 1 )
PORT_DIPNAME( 0x02, 0x00, "Cabinet", IP_KEY_NONE )
PORT_DIPSETTING( 0x00, "Upright" )
PORT_DIPSETTING( 0x02, "Cocktail" )
INPUT_PORTS_END
#define MACHINE_DRIVER(GAMENAME, NUMCOLORS) \
static struct MachineDriver GAMENAME##_machine_driver = \
{ \
/* basic machine hardware */ \
{ \
{ \
CPU_M6502, \
10595000/16, /* 0.66 Mhz */ \
0, \
readmem,GAMENAME##_writemem,0,0, \
astrof_interrupt,1 \
} \
}, \
60, 3400, /* frames per second, vblank duration */ \
1, /* single CPU, no need for interleaving */ \
0, \
\
/* video hardware */ \
256, 256, /* screen_width, screen_height */ \
{ 8, 256-1-8, 8, 256-1-8 }, /* struct rectangle visible_area */\
\
0, /* no gfxdecodeinfo - bitmapped display */ \
NUMCOLORS, 0, \
astrof_vh_convert_color_prom, \
\
VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE, \
0, \
astrof_vh_start, \
astrof_vh_stop, \
astrof_vh_screenrefresh, \
\
/* sound hardware */ \
0, 0, 0, 0, \
{ \
{ \
SOUND_SAMPLES, \
&GAMENAME##_samples_interface \
} \
} \
};
MACHINE_DRIVER(astrof, 16)
MACHINE_DRIVER(tomahawk, 32)
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( astrof_rom )
ROM_REGION(0x10000) /* 64k for code */
ROM_LOAD( "afii.6", 0xd000, 0x0800, 0xd6cd13a4 )
ROM_LOAD( "afii.5", 0xd800, 0x0800, 0x6fd3c4df )
ROM_LOAD( "afii.4", 0xe000, 0x0800, 0x9612dae3 )
ROM_LOAD( "afii.3", 0xe800, 0x0800, 0x5a0fef42 )
ROM_LOAD( "afii.2", 0xf000, 0x0800, 0x69f8a4fc )
ROM_LOAD( "afii.1", 0xf800, 0x0800, 0x322c09d2 )
ROM_REGION(0x0020) /* 32 bytes for the color PROM */
ROM_LOAD( "astrf.clr", 0x0000, 0x0020, 0x61329fd1 )
ROM_END
ROM_START( astrof2_rom )
ROM_REGION(0x10000) /* 64k for code */
ROM_LOAD( "kei2", 0xd000, 0x0400, 0x9f0bd355 )
ROM_LOAD( "keii", 0xd400, 0x0400, 0x71f229f0 )
ROM_LOAD( "kei0", 0xd800, 0x0400, 0x88114f7c )
ROM_LOAD( "af579.08", 0xdc00, 0x0400, 0x9793c124 )
ROM_LOAD( "ke8", 0xe000, 0x0400, 0x08e44b12 )
ROM_LOAD( "ke7", 0xe400, 0x0400, 0x8a42d62c )
ROM_LOAD( "ke6", 0xe800, 0x0400, 0x3e9aa743 )
ROM_LOAD( "ke5", 0xec00, 0x0400, 0x712a4557 )
ROM_LOAD( "ke4", 0xf000, 0x0400, 0xad06f306 )
ROM_LOAD( "ke3", 0xf400, 0x0400, 0x680b91b4 )
ROM_LOAD( "ke2", 0xf800, 0x0400, 0x2c4cab1a )
ROM_LOAD( "af583.00", 0xfc00, 0x0400, 0xf699dda3 )
ROM_REGION(0x0020) /* 32 bytes for the color PROM */
ROM_LOAD( "astrf.clr", 0x0000, 0x0020, 0x61329fd1 )
ROM_END
ROM_START( astrof3_rom )
ROM_REGION(0x10000) /* 64k for code */
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