📄 bzone.c
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/***************************************************************************
Battlezone memory map (preliminary)
0000-04ff RAM
0800 IN0
0a00 IN1
0c00 IN2
1200 Vector generator start (write)
1400
1600 Vector generator reset (write)
1800 Mathbox Status register
1810 Mathbox value (lo-byte)
1818 Mathbox value (hi-byte)
1820-182f POKEY I/O
1828 Control inputs
1860-187f Mathbox RAM
2000-2fff Vector generator RAM
3000-37ff Mathbox ROM
5000-7fff ROM
Battlezone settings:
0 = OFF 1 = ON X = Don't Care $ = Atari suggests
** IMPORTANT - BITS are INVERTED in the game itself **
TOP 8 SWITCH DIP
87654321
--------
XXXXXX11 Free Play
XXXXXX10 1 coin for 2 plays
XXXXXX01 1 coin for 1 play
XXXXXX00 2 coins for 1 play
XXXX11XX Right coin mech x 1
XXXX10XX Right coin mech x 4
XXXX01XX Right coin mech x 5
XXXX00XX Right coin mech x 6
XXX1XXXX Center (or Left) coin mech x 1
XXX0XXXX Center (or Left) coin mech x 2
111XXXXX No bonus coin
110XXXXX For every 2 coins inserted, game logic adds 1 more
101XXXXX For every 4 coins inserted, game logic adds 1 more
100XXXXX For every 4 coins inserted, game logic adds 2 more
011XXXXX For every 5 coins inserted, game logic adds 1 more
BOTTOM 8 SWITCH DIP
87654321
--------
XXXXXX11 Game starts with 2 tanks
XXXXXX10 Game starts with 3 tanks $
XXXXXX01 Game starts with 4 tanks
XXXXXX00 Game starts with 5 tanks
XXXX11XX Missile appears after 5,000 points
XXXX10XX Missile appears after 10,000 points $
XXXX01XX Missile appears after 20,000 points
XXXX00XX Missile appears after 30,000 points
XX11XXXX No bonus tank
XX10XXXX Bonus taks at 15,000 and 100,000 points $
XX01XXXX Bonus taks at 20,000 and 100,000 points
XX00XXXX Bonus taks at 50,000 and 100,000 points
11XXXXXX English language
10XXXXXX French language
01XXXXXX German language
00XXXXXX Spanish language
4 SWITCH DIP
XX11 All coin mechanisms register on one coin counter
XX01 Left and center coin mechanisms on one coin counter, right on second
XX10 Center and right coin mechanisms on one coin counter, left on second
XX00 Each coin mechanism has it's own counter
++++++++++++++++++++++++++
Red Baron memory map (preliminary)
0000-04ff RAM
0800 COIN_IN
0a00 IN1
0c00 IN2
1200 Vector generator start (write)
1400
1600 Vector generator reset (write)
1800 Mathbox Status register
1802 Button inputs
1804 Mathbox value (lo-byte)
1806 Mathbox value (hi-byte)
1808 Red Baron Sound (bit 1 selects joystick pot to read also)
1810-181f POKEY I/O
1818 Joystick inputs
1860-187f Mathbox RAM
2000-2fff Vector generator RAM
3000-37ff Mathbox ROM
5000-7fff ROM
RED BARON DIP SWITCH SETTINGS
Donated by Dana Colbert
$=Default
"K" = 1,000
Switch at position P10
8 7 6 5 4 3 2 1
_________________________________________
English $| | | | | | |Off |Off |
Spanish | | | | | | |Off | On |
French | | | | | | | On |Off |
German | | | | | | | On | On |
| | | | | | | | |
Bonus airplane granted at: | | | | | | | | |
Bonus at 2K, 10K and 30K | | | | |Off |Off | | |
Bonus at 4K, 15K and 40K $| | | | |Off | On | | |
Bonus at 6K, 20K and 50K | | | | | On |Off | | |
No bonus airplanes | | | | | On | On | | |
| | | | | | | | |
2 aiplanes per game | | |Off |Off | | | | |
3 airplanes per game $| | |Off | On | | | | |
4 airplanes per game | | | On |Off | | | | |
5 airplanes per game | | | On | On | | | | |
| | | | | | | | |
1-play minimum $| |Off | | | | | | |
2-play minimum | | On | | | | | | |
| | | | | | | | |
Self-adj. game difficulty: on $|Off | | | | | | | |
Self-adj. game difficulty: off | On | | | | | | | |
-----------------------------------------
If self-adjusting game difficulty feature is
turned on, the program strives to maintain the
following average game lengths (in seconds):
Airplanes per game:
Bonus airplane granted at: 2 3 4 5
2,000, 10,000 and 30,000 points 90 105$ 120 135
4,000, 15,000 and 40,000 points 75 90 105 120
6,000, 20,000 and 50,000 points 60 75 90 105
No bonus airplanes 45 60 75 90
Switch at position M10
8 7 6 5 4 3 2 1
_________________________________________
50 PER PLAY | | | | | | | | |
Straight 25 Door: | | | | | | | | |
No Bonus Coins |Off |Off |Off |Off |Off |Off | On | On |
Bonus $1= 3 plays |Off | On | On |Off |Off |Off | On | On |
Bonus $1= 3 plays, 75 = 2 plays |Off |Off | On |Off |Off |Off | On | On |
| | | | | | | | |
25 /$1 Door or 25 /25 /$1 Door | | | | | | | | |
No Bonus Coins |Off |Off |Off |Off |Off | On | On | On |
Bonus $1= 3 plays |Off | On | On |Off |Off | On | On | On |
Bonus $1= 3 plays, 75 = 2 plays |Off |Off | On |Off |Off | On | On | On |
| | | | | | | | |
25 PER PLAY | | | | | | | | |
Straight 25 Door: | | | | | | | | |
No Bonus Coins |Off |Off |Off |Off |Off |Off | On |Off |
Bonus 50 = 3 plays |Off |Off | On |Off |Off |Off | On |Off |
Bonus $1= 5 plays |Off | On |Off |Off |Off |Off | On |Off |
| | | | | | | | |
25 /$1 Door or 25 /25 /$1 Door | | | | | | | | |
No Bonus Coins |Off |Off |Off |Off |Off | On | On |Off |
Bonus 50 = 3 plays |Off |Off | On |Off |Off | On | On |Off |
Bonus $1= 5 plays |Off | On |Off |Off |Off | On | On |Off |
-----------------------------------------
Switch at position L11
1 2 3 4
_____________________
All 3 mechs same denomination | On | On | | |
Left and Center same, right different denomination | On |Off | | |
Right and Center same, left differnnt denomination |Off | On | | |
All different denominations |Off |Off | | |
---------------------
***************************************************************************/
#include "driver.h"
#include "vidhrdw/generic.h"
#include "vidhrdw/vector.h"
#include "vidhrdw/avgdvg.h"
#include "machine/mathbox.h"
#include "machine/atari_vg.h"
#define IN0_3KHZ (1<<7)
#define IN0_VG_HALT (1<<6)
void redbaron_sounds_w (int offset,int data);
void bzone_pokey_w (int offset, int data);
void bzone_sounds_w (int offset, int data);
int bzone_IN0_r(int offset)
{
int res;
res = readinputport(0);
if (cpu_gettotalcycles() & 0x100)
res |= IN0_3KHZ;
else
res &= ~IN0_3KHZ;
if (avgdvg_done())
res |= IN0_VG_HALT;
else
res &= ~IN0_VG_HALT;
return res;
}
/* Translation table for one-joystick emulation */
static int one_joy_trans[32]={
0x00,0x0A,0x05,0x00,0x06,0x02,0x01,0x00,
0x09,0x08,0x04,0x00,0x00,0x00,0x00,0x00 };
static int bzone_IN3_r(int offset)
{
int res,res1;
res=readinputport(3);
res1=readinputport(4);
res|=one_joy_trans[res1&0x1f];
return (res);
}
static int bzone_interrupt(void)
{
if (readinputport(0) & 0x10)
return nmi_interrupt();
else
return ignore_interrupt();
}
int rb_input_select;
static int redbaron_joy_r (int offset)
{
if (rb_input_select)
return readinputport (5);
else
return readinputport (6);
}
static struct MemoryReadAddress bzone_readmem[] =
{
{ 0x0000, 0x03ff, MRA_RAM },
{ 0x5000, 0x7fff, MRA_ROM },
{ 0x3000, 0x3fff, MRA_ROM },
{ 0xf800, 0xffff, MRA_ROM }, /* for the reset / interrupt vectors */
{ 0x2000, 0x2fff, MRA_RAM, &vectorram, &vectorram_size },
{ 0x0800, 0x0800, bzone_IN0_r }, /* IN0 */
{ 0x0a00, 0x0a00, input_port_1_r }, /* DSW1 */
{ 0x0c00, 0x0c00, input_port_2_r }, /* DSW2 */
{ 0x1820, 0x182f, pokey1_r },
{ 0x1800, 0x1800, mb_status_r },
{ 0x1810, 0x1810, mb_lo_r },
{ 0x1818, 0x1818, mb_hi_r },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress bzone_writemem[] =
{
{ 0x0000, 0x03ff, MWA_RAM },
{ 0x2000, 0x2fff, MWA_RAM },
{ 0x1820, 0x182f, bzone_pokey_w },
{ 0x1860, 0x187f, mb_go },
{ 0x1200, 0x1200, avgdvg_go },
{ 0x1000, 0x1000, coin_counter_w },
{ 0x1400, 0x1400, MWA_NOP }, /* watchdog clear */
{ 0x1600, 0x1600, avgdvg_reset },
{ 0x1840, 0x1840, bzone_sounds_w },
{ 0x5000, 0x7fff, MWA_ROM },
{ 0x3000, 0x3fff, MWA_ROM },
{ -1 } /* end of table */
};
INPUT_PORTS_START( bzone_input_ports )
PORT_START /* IN0 */
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN1)
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_COIN2)
PORT_BIT ( 0x0c, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BITX( 0x10, 0x10, IPT_DIPSWITCH_NAME | IPF_TOGGLE, "Service Mode", OSD_KEY_F2, IP_JOY_NONE, 0 )
PORT_DIPSETTING( 0x10, "Off" )
PORT_DIPSETTING( 0x00, "On" )
PORT_BITX( 0x20, IP_ACTIVE_LOW, IPT_SERVICE, "Diagnostic Step", OSD_KEY_F1, IP_JOY_NONE, 0 )
/* bit 6 is the VG HALT bit. We set it to "low" */
/* per default (busy vector processor). */
/* handled by bzone_IN0_r() */
PORT_BIT ( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN )
/* bit 7 is tied to a 3khz clock */
/* handled by bzone_IN0_r() */
PORT_BIT ( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_START /* DSW0 */
PORT_DIPNAME (0x03, 0x01, "Lives", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "2" )
PORT_DIPSETTING ( 0x01, "3" )
PORT_DIPSETTING ( 0x02, "4" )
PORT_DIPSETTING ( 0x03, "5" )
PORT_DIPNAME (0x0c, 0x04, "Missile appears at", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "5000" )
PORT_DIPSETTING ( 0x04, "10000" )
PORT_DIPSETTING ( 0x08, "20000" )
PORT_DIPSETTING ( 0x0c, "30000" )
PORT_DIPNAME (0x30, 0x10, "Bonus Tank", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "Never" )
PORT_DIPSETTING ( 0x10, "15k and 100k" )
PORT_DIPSETTING ( 0x20, "20k and 100k" )
PORT_DIPSETTING ( 0x30, "50k and 100k" )
PORT_DIPNAME (0xc0, 0x00, "Language", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "English" )
PORT_DIPSETTING ( 0x40, "German" )
PORT_DIPSETTING ( 0x80, "French" )
PORT_DIPSETTING ( 0xc0, "Spanish" )
PORT_START /* DSW1 */
PORT_DIPNAME (0x03, 0x02, "Coinage", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "Free Play" )
PORT_DIPSETTING ( 0x01, "1 Coin/2 Credits" )
PORT_DIPSETTING ( 0x02, "1 Coin/1 Credit" )
PORT_DIPSETTING ( 0x03, "2 Coins/1 Credit" )
PORT_DIPNAME (0x0c, 0x00, "Right Coin", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "*1" )
PORT_DIPSETTING ( 0x04, "*4" )
PORT_DIPSETTING ( 0x08, "*5" )
PORT_DIPSETTING ( 0x0c, "*6" )
PORT_DIPNAME (0x10, 0x00, "Left Coin", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "*1" )
PORT_DIPSETTING ( 0x10, "*2" )
PORT_DIPNAME (0xe0, 0x00, "Bonus Coins", IP_KEY_NONE )
PORT_DIPSETTING ( 0x00, "None" )
PORT_DIPSETTING ( 0x20, "3 credits/2 coins" )
PORT_DIPSETTING ( 0x40, "5 credits/4 coins" )
PORT_DIPSETTING ( 0x60, "6 credits/4 coins" )
PORT_DIPSETTING ( 0x80, "6 credits/5 coins" )
PORT_START
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP | IPF_8WAY )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN | IPF_8WAY )
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT | IPF_8WAY )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT | IPF_8WAY )
INPUT_PORTS_END
static struct MemoryReadAddress redbaron_readmem[] =
{
{ 0x0000, 0x03ff, MRA_RAM },
{ 0x5000, 0x7fff, MRA_ROM },
{ 0x3000, 0x3fff, MRA_ROM },
{ 0xf800, 0xffff, MRA_ROM }, /* for the reset / interrupt vectors */
{ 0x2000, 0x2fff, MRA_RAM, &vectorram, &vectorram_size },
{ 0x0800, 0x0800, bzone_IN0_r }, /* IN0 */
{ 0x0a00, 0x0a00, input_port_1_r }, /* DSW1 */
{ 0x0c00, 0x0c00, input_port_2_r }, /* DSW2 */
{ 0x1810, 0x181f, pokey1_r },
{ 0x1802, 0x1802, input_port_4_r }, /* IN4 */
{ 0x1800, 0x1800, mb_status_r },
{ 0x1804, 0x1804, mb_lo_r },
{ 0x1806, 0x1806, mb_hi_r },
{ 0x1820, 0x185f, atari_vg_earom_r },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress redbaron_writemem[] =
{
{ 0x0000, 0x03ff, MWA_RAM },
{ 0x2000, 0x2fff, MWA_RAM },
{ 0x1808, 0x1808, redbaron_sounds_w }, /* and select joystick pot also */
{ 0x1000, 0x1000, MWA_NOP }, /* coin out */
{ 0x180a, 0x180a, MWA_NOP }, /* sound reset, yet todo */
{ 0x180c, 0x180c, atari_vg_earom_ctrl },
{ 0x1810, 0x181f, pokey1_w },
{ 0x1820, 0x185f, atari_vg_earom_w },
{ 0x1860, 0x187f, mb_go },
{ 0x1200, 0x1200, avgdvg_go },
{ 0x1400, 0x1400, MWA_NOP }, /* watchdog clear */
{ 0x1600, 0x1600, avgdvg_reset },
{ 0x5000, 0x7fff, MWA_ROM },
{ 0x3000, 0x3fff, MWA_ROM },
{ -1 } /* end of table */
};
INPUT_PORTS_START( redbaron_input_ports )
PORT_START /* IN0 */
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN1)
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