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batman.c
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C/C++ Source or Header
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2000-04-04
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12KB
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388 lines
/***************************************************************************
Batman
driver by Aaron Giles
****************************************************************************/
#include "driver.h"
#include "machine/atarigen.h"
#include "sndhrdw/atarijsa.h"
#include "vidhrdw/generic.h"
void batman_set_alpha_bank(int bank);
WRITE_HANDLER( batman_playfieldram_w );
WRITE_HANDLER( batman_playfield2ram_w );
WRITE_HANDLER( batman_colorram_w );
int batman_vh_start(void);
void batman_vh_stop(void);
void batman_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
void batman_scanline_update(int scanline);
static UINT8 *latch_data;
/*************************************
*
* Initialization
*
*************************************/
static void update_interrupts(void)
{
int newstate = 0;
if (atarigen_scanline_int_state)
newstate |= 4;
if (atarigen_sound_int_state)
newstate |= 6;
if (newstate)
cpu_set_irq_line(0, newstate, ASSERT_LINE);
else
cpu_set_irq_line(0, 7, CLEAR_LINE);
}
static void init_machine(void)
{
atarigen_eeprom_reset();
atarigen_video_control_reset();
atarigen_interrupt_reset(update_interrupts);
atarigen_scanline_timer_reset(batman_scanline_update, 8);
atarijsa_reset();
}
/*************************************
*
* I/O handling
*
*************************************/
static READ_HANDLER( special_port2_r )
{
int result = input_port_2_r(offset);
if (atarigen_sound_to_cpu_ready) result ^= 0x0010;
if (atarigen_cpu_to_sound_ready) result ^= 0x0020;
return result;
}
static WRITE_HANDLER( latch_w )
{
int oldword = READ_WORD(latch_data);
int newword = COMBINE_WORD(oldword, data);
WRITE_WORD(latch_data, newword);
/* bit 4 is connected to the /RESET pin on the 6502 */
if (newword & 0x0010)
cpu_set_reset_line(1, CLEAR_LINE);
else
cpu_set_reset_line(1, ASSERT_LINE);
/* alpha bank is selected by the upper 4 bits */
if ((oldword ^ newword) & 0x7000)
batman_set_alpha_bank((newword >> 12) & 7);
}
/*************************************
*
* Main CPU memory handlers
*
*************************************/
static struct MemoryReadAddress main_readmem[] =
{
{ 0x000000, 0x0bffff, MRA_ROM },
{ 0x100000, 0x10ffff, MRA_BANK1 },
{ 0x120000, 0x120fff, atarigen_eeprom_r },
{ 0x3e0000, 0x3e0fff, paletteram_word_r },
{ 0x3effc0, 0x3effff, atarigen_video_control_r },
{ 0x260000, 0x260001, input_port_0_r },
{ 0x260002, 0x260003, input_port_1_r },
{ 0x260010, 0x260011, special_port2_r },
{ 0x260030, 0x260031, atarigen_sound_r },
{ 0x3f0000, 0x3f5fff, MRA_BANK3 },
{ 0x3f6000, 0x3f7fff, MRA_BANK4 },
{ 0x3f8000, 0x3f8fff, MRA_BANK5 },
{ 0x3f9000, 0x3fffff, MRA_BANK6 },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress main_writemem[] =
{
{ 0x000000, 0x0bffff, MWA_ROM },
{ 0x100000, 0x10ffff, MWA_BANK1 },
{ 0x120000, 0x120fff, atarigen_eeprom_w, &atarigen_eeprom, &atarigen_eeprom_size },
{ 0x260040, 0x260041, atarigen_sound_w },
{ 0x260050, 0x260051, latch_w, &latch_data },
{ 0x260060, 0x260061, atarigen_eeprom_enable_w },
{ 0x2a0000, 0x2a0001, watchdog_reset_w },
{ 0x3e0000, 0x3e0fff, atarigen_666_paletteram_w, &paletteram },
{ 0x3effc0, 0x3effff, atarigen_video_control_w, &atarigen_video_control_data },
{ 0x3f0000, 0x3f1fff, batman_playfield2ram_w, &atarigen_playfield2ram, &atarigen_playfield2ram_size },
{ 0x3f2000, 0x3f3fff, batman_playfieldram_w, &atarigen_playfieldram, &atarigen_playfieldram_size },
{ 0x3f4000, 0x3f5fff, batman_colorram_w, &atarigen_playfieldram_color },
{ 0x3f6000, 0x3f7fff, MWA_BANK4, &atarigen_spriteram, &atarigen_spriteram_size },
{ 0x3f8000, 0x3f8fff, MWA_BANK5, &atarigen_alpharam, &atarigen_alpharam_size },
{ 0x3f9000, 0x3fffff, MWA_BANK6 },
{ -1 } /* end of table */
};
/*************************************
*
* Port definitions
*
*************************************/
INPUT_PORTS_START( batman )
PORT_START /* 26000 */
PORT_BIT( 0x01ff, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER1 )
PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER1 )
PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER1 )
PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_PLAYER1 )
PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_PLAYER1 )
PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_PLAYER1 )
PORT_START /* 26002 */
PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START /* 26010 */
PORT_BIT( 0x000f, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_UNUSED ) /* Input buffer full (@260030) */
PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNUSED ) /* Output buffer full (@260040) */
PORT_SERVICE( 0x0040, IP_ACTIVE_LOW )
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_VBLANK )
JSA_III_PORT /* audio board port */
INPUT_PORTS_END
/*************************************
*
* Graphics definitions
*
*************************************/
static struct GfxLayout anlayout =
{
8,8, /* 8*8 chars */
8192, /* 8192 chars */
2, /* 2 bits per pixel */
{ 0, 4 },
{ 0, 1, 2, 3, 8, 9, 10, 11 },
{ 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 },
8*16 /* every char takes 16 consecutive bytes */
};
static struct GfxLayout pfmolayout =
{
8,8, /* 8*8 sprites */
32768, /* 32768 of them */
4, /* 4 bits per pixel */
{ 0*8*0x80000, 1*8*0x80000, 2*8*0x80000, 3*8*0x80000 },
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8 /* every sprite takes 8 consecutive bytes */
};
static struct GfxDecodeInfo gfxdecodeinfo[] =
{
{ REGION_GFX2, 0x040000, &pfmolayout, 512, 64 }, /* sprites & playfield */
{ REGION_GFX2, 0x000000, &pfmolayout, 256, 64 }, /* sprites & playfield */
{ REGION_GFX1, 0x000000, &anlayout, 0, 64 }, /* characters 8x8 */
{ -1 } /* end of array */
};
/*************************************
*
* Machine driver
*
*************************************/
static struct MachineDriver machine_driver_batman =
{
/* basic machine hardware */
{
{
CPU_M68000,
ATARI_CLOCK_14MHz,
main_readmem,main_writemem,0,0,
ignore_interrupt,1
},
JSA_III_CPU
},
60, DEFAULT_REAL_60HZ_VBLANK_DURATION, /* frames per second, vblank duration */
1,
init_machine,
/* video hardware */
42*8, 30*8, { 0*8, 42*8-1, 0*8, 30*8-1 },
gfxdecodeinfo,
2048, 2048,
0,
VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE | VIDEO_UPDATE_BEFORE_VBLANK,
0,
batman_vh_start,
batman_vh_stop,
batman_vh_screenrefresh,
/* sound hardware */
JSA_III_MONO(REGION_SOUND1),
atarigen_nvram_handler
};
/*************************************
*
* ROM decoding
*
*************************************/
static void rom_decode(void)
{
UINT8 *base = memory_region(REGION_SOUND1);
int i;
/* invert the graphics bits on the playfield and motion objects */
for (i = 0; i < memory_region_length(REGION_GFX2); i++)
memory_region(REGION_GFX2)[i] ^= 0xff;
/* expand the ADPCM data to avoid lots of memcpy's during gameplay */
/* the upper 128k is fixed, the lower 128k is bankswitched */
memcpy(&base[0x00000], &base[0x80000], 0x20000);
memcpy(&base[0x40000], &base[0x80000], 0x20000);
memcpy(&base[0x80000], &base[0xa0000], 0x20000);
memcpy(&base[0xc0000], &base[0xc0000], 0x20000);
memcpy(&base[0x20000], &base[0xe0000], 0x20000);
memcpy(&base[0x60000], &base[0xe0000], 0x20000);
memcpy(&base[0xa0000], &base[0xe0000], 0x20000);
memcpy(&base[0xe0000], &base[0xe0000], 0x20000);
}
/*************************************
*
* Driver initialization
*
*************************************/
static void init_batman(void)
{
static const UINT16 default_eeprom[] =
{
0x0001,0x01F1,0x0154,0x01C5,0x0100,0x0113,0x0300,0x0173,
0x0700,0x0154,0x0200,0x0107,0x0100,0x0120,0x0300,0x0165,
0x0125,0x0100,0x0149,0x019D,0x016C,0x018B,0x01F1,0x0154,
0x01C5,0x0100,0x0113,0x0300,0x0173,0x0700,0x0154,0x0200,
0x0107,0x0100,0x0120,0x0300,0x0165,0x0125,0x0100,0x0149,
0x019D,0x016C,0x018B,0x6800,0x0134,0x0113,0x0148,0x0100,
0x019A,0x0105,0x01DC,0x01A2,0x013A,0x0139,0x0100,0x0105,
0x01AB,0x016A,0x0149,0x0100,0x01ED,0x0105,0x0185,0x01B2,
0x0134,0x0100,0x0105,0x0160,0x01AA,0x0149,0x0100,0x0105,
0x012A,0x0152,0x0110,0x0100,0x0168,0x0105,0x0113,0x012E,
0x0150,0x0218,0x01D0,0x0100,0x01D0,0x0300,0x01D0,0x0600,
0x01D0,0x02C8,0x0000
};
atarigen_eeprom_default = default_eeprom;
atarijsa_init(1, 3, 2, 0x0040);
/* speed up the 6502 */
atarigen_init_6502_speedup(1, 0x4163, 0x417b);
/* display messages */
atarigen_show_sound_message();
rom_decode();
}
/*************************************
*
* ROM definition(s)
*
*************************************/
ROM_START( batman )
ROM_REGION( 0xc0000, REGION_CPU1 ) /* 6*128k for 68000 code */
ROM_LOAD_EVEN( "085-2030.10r", 0x00000, 0x20000, 0x7cf4e5bf )
ROM_LOAD_ODD ( "085-2031.7r", 0x00000, 0x20000, 0x7d7f3fc4 )
ROM_LOAD_EVEN( "085-2032.91r", 0x40000, 0x20000, 0xd80afb20 )
ROM_LOAD_ODD ( "085-2033.6r", 0x40000, 0x20000, 0x97efa2b8 )
ROM_LOAD_EVEN( "085-2034.9r", 0x80000, 0x20000, 0x05388c62 )
ROM_LOAD_ODD ( "085-2035.5r", 0x80000, 0x20000, 0xe77c92dd )
ROM_REGION( 0x14000, REGION_CPU2 ) /* 64k + 16k for 6502 code */
ROM_LOAD( "085-1040.12c", 0x10000, 0x4000, 0x080db83c )
ROM_CONTINUE( 0x04000, 0xc000 )
ROM_REGION( 0x20000, REGION_GFX1 | REGIONFLAG_DISPOSE )
ROM_LOAD( "085-2009.10m", 0x00000, 0x20000, 0xa82d4923 ) /* alphanumerics */
ROM_REGION( 0x200000, REGION_GFX2 | REGIONFLAG_DISPOSE )
ROM_LOAD( "085-1010.13r", 0x000000, 0x20000, 0x466e1365 ) /* graphics, plane 0 */
ROM_LOAD( "085-1014.14r", 0x020000, 0x20000, 0xef53475a )
ROM_LOAD( "085-1018.15r", 0x040000, 0x20000, 0x4c14f1e5 )
ROM_LOAD( "085-1022.16r", 0x060000, 0x20000, 0x7476a15d )
ROM_LOAD( "085-1011.13m", 0x080000, 0x20000, 0x8cda5efc ) /* graphics, plane 1 */
ROM_LOAD( "085-1015.14m", 0x0a0000, 0x20000, 0x043e7f8b )
ROM_LOAD( "085-1019.15m", 0x0c0000, 0x20000, 0x2046d9ec )
ROM_LOAD( "085-1023.16m", 0x0e0000, 0x20000, 0x75cac686 )
ROM_LOAD( "085-1012.13f", 0x100000, 0x20000, 0xb017f2c3 ) /* graphics, plane 2 */
ROM_LOAD( "085-1016.14f", 0x120000, 0x20000, 0x70aa2360 )
ROM_LOAD( "085-1020.15f", 0x140000, 0x20000, 0xcc4f4b94 )
ROM_LOAD( "085-1024.16f", 0x160000, 0x20000, 0xd60d35e0 )
ROM_LOAD( "085-1013.13c", 0x180000, 0x20000, 0x68b64975 ) /* graphics, plane 3 */
ROM_LOAD( "085-1017.14c", 0x1a0000, 0x20000, 0xe4af157b )
ROM_LOAD( "085-1021.15c", 0x1c0000, 0x20000, 0x9c8ef9ba )
ROM_LOAD( "085-1025.16c", 0x1e0000, 0x20000, 0x5d30bcd1 )
ROM_REGION( 0x100000, REGION_SOUND1 ) /* 1MB for ADPCM */
ROM_LOAD( "085-1041.19e", 0x80000, 0x20000, 0xd97d5dbb )
ROM_LOAD( "085-1042.17e", 0xa0000, 0x20000, 0x8c496986 )
ROM_LOAD( "085-1043.15e", 0xc0000, 0x20000, 0x51812d3b )
ROM_LOAD( "085-1044.12e", 0xe0000, 0x20000, 0x5e2d7f31 )
ROM_END
/*************************************
*
* Game driver(s)
*
*************************************/
GAME( 1991, batman, 0, batman, batman, batman, ROT0, "Atari Games", "Batman" )