/****************************************************************************
Mazer Blazer by Stern (c) 1983
Great Guns by Stern (c) 1983
Driver by Jarek Burczynski
2003.03.19
Issues:
======
Sprites leave trails in both ganes
Sprites should be transparent (color 0x0f)
Screen flickers heavily in Great Guns (double buffer issue?).
TO DO:
=====
- handle page flipping
- figure out the VCU modes used in "clr_r":
0x13 -? sprites related
0x03 -? could be collision detection (if there is such a thing)
- figure out how the palette is handled (partially done)
- find out if there are any CLUTs (might be the other unknown cases in mode 7)
- figure out what really should happen during VCU test in Great Guns (patched
out at the moment) (btw. Mazer Blazer doesn't test VCU)
- add sound to Mazer Blazer - Speech processor is unknown chip
****************************************************************************/
#include "driver.h"
#include "sound/ay8910.h"
static UINT8 *cfb_ram;
static UINT32 VCU_gfx_addr = 0;
static UINT32 VCU_gfx_param_addr = 0;
static UINT32 xpos=0, ypos=0, pix_xsize=0, pix_ysize=0;
static UINT8 color=0, color2=0, mode=0, plane=0;
static UINT8 vbank = 0; /* video page select signal, likely for double buffering ?*/
static UINT32 gfx_rom_bank = 0xff; /* graphics ROMs are banked */
#define MAZERBLA 0x01
#define GREATGUN 0x02
static UINT8 game_id = 0; /* hacks per game */
static UINT8 lookup_RAM[0x100*4];
#include "video/resnet.h"
/***************************************************************************
Convert the color PROMs into a more useable format.
bit 0 -- 10.0Kohm resistor--\
bit 1 -- 4.7 Kohm resistor --+-- 3.6 Kohm pulldown resistor -- BLUE
bit 2 -- 2.2 Kohm resistor --/
bit 3 -- 10.0Kohm resistor--\
bit 4 -- 4.7 Kohm resistor --+-- 3.6 Kohm pulldown resistor -- GREEN
bit 5 -- 2.2 Kohm resistor --/
bit 6 -- 4.7 Kohm resistor --+-- 3.6 Kohm pulldown resistor -- RED
bit 7 -- 2.2 Kohm resistor --/
***************************************************************************/
static double weights_r[2], weights_g[3], weights_b[3];
static PALETTE_INIT( mazerbla )
{
static const int resistances_r[2] = { 4700, 2200 };
static const int resistances_gb[3] = { 10000, 4700, 2200 };
/* just to calculate coefficients for later use */
compute_resistor_weights(0, 255, -1.0,
3, resistances_gb, weights_g, 3600, 0,
3, resistances_gb, weights_b, 3600, 0,
2, resistances_r, weights_r, 3600, 0);
}
static bitmap_t * tmpbitmaps[4];
static VIDEO_START( mazerbla )
{
tmpbitmaps[0] = video_screen_auto_bitmap_alloc(machine->primary_screen);
tmpbitmaps[1] = video_screen_auto_bitmap_alloc(machine->primary_screen);
tmpbitmaps[2] = video_screen_auto_bitmap_alloc(machine->primary_screen);
tmpbitmaps[3] = video_screen_auto_bitmap_alloc(machine->primary_screen);
}
#if 0
static int dbg_info = 1;
static int dbg_gfx_e = 1;
static int dbg_clr_e = 0;
static int dbg_vbank = 1;
static int dbg_lookup = 4; //4= off
static int planes_enabled[4] = {1,1,1,1}; //all enabled
#endif
#if 0
VIDEO_UPDATE( test_vcu )
{
int j;
char buf[128];
UINT32 color_base=0;
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 constant: matches Mazer Blazer movie */
if (game_id==GREATGUN)
color_base = 0x0;
fillbitmap(bitmap,0,NULL);
//logerror("-->frame\n");
if (planes_enabled[3])
copybitmap(bitmap,tmpbitmaps[3],0,0,0,0,cliprect);
if (planes_enabled[2])
copybitmap_trans(bitmap,tmpbitmaps[2],0,0,0,0,cliprect,color_base);
fillbitmap(tmpbitmaps[2],color_base,NULL);
if (planes_enabled[1])
copybitmap_trans(bitmap,tmpbitmaps[1],0,0,0,0,cliprect,color_base);
fillbitmap(tmpbitmaps[1],color_base,NULL);
if (planes_enabled[0])
copybitmap_trans(bitmap,tmpbitmaps[0],0,0,0,0,cliprect,color_base);
fillbitmap(tmpbitmaps[0],color_base,NULL);
if (input_code_pressed_once(KEYCODE_1)) /* plane 1 */
{
planes_enabled[0] ^= 1;
}
if (input_code_pressed_once(KEYCODE_2)) /* plane 2 */
{
planes_enabled[1] ^= 1;
}
if (input_code_pressed_once(KEYCODE_3)) /* plane 3 */
{
planes_enabled[2] ^= 1;
}
if (input_code_pressed_once(KEYCODE_4)) /* plane 4 */
{
planes_enabled[3] ^= 1;
}
if (input_code_pressed_once(KEYCODE_I)) /* show/hide debug info */
{
dbg_info = !dbg_info;
}
if (input_code_pressed_once(KEYCODE_G)) /* enable gfx area handling */
{
dbg_gfx_e = !dbg_gfx_e;
}
if (input_code_pressed_once(KEYCODE_C)) /* enable color area handling */
{
dbg_clr_e = !dbg_clr_e;
}
if (input_code_pressed_once(KEYCODE_V)) /* draw only when vbank==dbg_vbank */
{
dbg_vbank ^= 1;
}
if (input_code_pressed_once(KEYCODE_L)) /* showlookup ram */
{
dbg_lookup = (dbg_lookup+1)%5;//0,1,2,3, 4-off
}
if (dbg_info)
{
sprintf(buf,"I-info, G-gfx, C-color, V-vbank, 1-4 enable planes");
ui_draw_text(buf, 10, 0 * ui_get_line_height());
sprintf(buf,"g:%1i c:%1i v:%1i vbk=%1i planes=%1i%1i%1i%1i ", dbg_gfx_e&1, dbg_clr_e&1, dbg_vbank, vbank&1,
planes_enabled[0],
planes_enabled[1],
planes_enabled[2],
planes_enabled[3] );
ui_draw_text(buf, 10, 1 * ui_get_line_height());
if (dbg_lookup!=4)
{
int lookup_offs = (dbg_lookup)*256; //=0,1,2,3*256
int y,x;
for (y=0; y<16; y++)
{
memset(buf,0,128);
sprintf( buf+strlen(buf), "%04x ", lookup_offs+y*16 );
for (x=0; x<16; x++)
{
sprintf( buf+strlen(buf), "%02x ", lookup_RAM[ lookup_offs+x+y*16 ] );
}
ui_draw_text(buf, 0, (2 + y) * ui_get_line_height());
}
}
}
return 0;
}
#endif
/* these two VIDEO_UPDATE()s will be joined one day */
static VIDEO_UPDATE( greatgun )
{
UINT32 color_base=0;
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 constant: matches Mazer Blazer movie */
if (game_id==GREATGUN)
color_base = 0x0;
//fillbitmap(bitmap,0,NULL);
copybitmap (bitmap,tmpbitmaps[3],0,0,0,0,cliprect);
copybitmap_trans(bitmap,tmpbitmaps[2],0,0,0,0,cliprect,color_base);
copybitmap_trans(bitmap,tmpbitmaps[1],0,0,0,0,cliprect,color_base);
copybitmap_trans(bitmap,tmpbitmaps[0],0,0,0,0,cliprect,color_base);
return 0;
}
static VIDEO_UPDATE( mazerbla )
{
UINT32 color_base=0;
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 constant: matches Mazer Blazer movie */
if (game_id==GREATGUN)
color_base = 0x0;
//fillbitmap(bitmap,0,NULL);
copybitmap (bitmap,tmpbitmaps[3],0,0,0,0,cliprect); //text
copybitmap_trans(bitmap,tmpbitmaps[2],0,0,0,0,cliprect,0);
copybitmap_trans(bitmap,tmpbitmaps[1],0,0,0,0,cliprect,0); //haircross
copybitmap_trans(bitmap,tmpbitmaps[0],0,0,0,0,cliprect,0); //sprites
return 0;
}
static UINT8 zpu_int_vector;
static WRITE8_HANDLER( cfb_zpu_int_req_set_w )
{
zpu_int_vector &= ~2; /* clear D1 on INTA (interrupt acknowledge) */
cpunum_set_input_line(machine, 0, 0, ASSERT_LINE); /* main cpu interrupt (comes from CFB (generated at the start of INT routine on CFB) - vblank?) */
}
static READ8_HANDLER( cfb_zpu_int_req_clr )
{
zpu_int_vector |= 2;
/* clear the INT line when there are no more interrupt requests */
if (zpu_int_vector==0xff)
cpunum_set_input_line(machine, 0, 0, CLEAR_LINE);
return 0;
}
static IRQ_CALLBACK(irq_callback)
{
/* all data lines are tied to +5V via 10K resistors */
/* D1 is set to GND when INT comes from CFB */
/* D2 is set to GND when INT comes from ZPU board - from 6850 on schematics (RS232 controller) */
/* resulting vectors:
1111 11000 (0xf8)
1111 11010 (0xfa)
1111 11100 (0xfc)
note:
1111 11110 (0xfe) - cannot happen and is not handled by game */
return (zpu_int_vector & ~1); /* D0->GND is performed on CFB board */
}
static UINT8 *cfb_zpu_sharedram;
static WRITE8_HANDLER ( sharedram_CFB_ZPU_w )
{
cfb_zpu_sharedram[offset] = data;
}
static READ8_HANDLER ( sharedram_CFB_ZPU_r )
{
return cfb_zpu_sharedram[offset];
}
static UINT8 ls670_0[4];
static UINT8 ls670_1[4];
static READ8_HANDLER( ls670_0_r )
{
/* set a timer to force synchronization after the read */
timer_call_after_resynch(NULL, 0, NULL);
return ls670_0[offset];
}
static TIMER_CALLBACK( deferred_ls670_0_w )
{
int offset = (param>>8) & 255;
int data = param & 255;
ls670_0[offset] = data;
}
static WRITE8_HANDLER( ls670_0_w )
{
/* do this on a timer to let the CPUs synchronize */
timer_call_after_resynch(NULL, (offset<<8) | data, deferred_ls670_0_w);
}
static READ8_HANDLER( ls670_1_r )
{
/* set a timer to force synchronization after the read */
timer_call_after_resynch(NULL, 0, NULL);
return ls670_1[offset];
}
static TIMER_CALLBACK( deferred_ls670_1_w )
{
int offset = (param>>8) & 255;
int data = param & 255;
ls670_1[offset] = data;
}
static WRITE8_HANDLER( ls670_1_w )
{
/* do this on a timer to let the CPUs synchronize */
timer_call_after_resynch(NULL, (offset<<8) | data, deferred_ls670_1_w);
}
/* bcd decoder used a input select (a mux) for reads from port 0x62 */
static UINT8 bcd_7445 = 0;
static WRITE8_HANDLER(zpu_bcd_decoder_w)
{
/*
name: Strobe(bcd_value) BIT
---------------------------------------
ZPU switch 1 0 6
ZPU switch 2 0 7
dipsw 35 1 7
dipsw 34 1 6
dipsw 33 1 5
dipsw 32 1 4
dipsw 31 1 3
dipsw 30 1 2
dipsw 29 1 1
dipsw 28 1 0
dipsw 27 2 7
dipsw 26 2 6
...
dipsw 8 4 4
dipsw 7 4 3
dipsw 6 4 2
dipsw 5 4 1
dipsw 4 4 0
Right Coin Sw. 5 0
Left Coin Sw. 5 1
Player One 5 2
Player Two 5 3
Fire Button 5 4
Horizontal movement of gun is Strobe 6, Bits 0-7.
Movement is from 0000 0000 to 1111 1111
Vertical movement of gun is Strobe 7, Bits 0-7.
Movement is from 0000 0000 to 1111 1111
Great Guns has two guns and here is necessary support for second gun:
Horizontal movement of gun is Strobe 8, Bits 0-7.
Movement is from 0000 0000 to 1111 1111
Vertical movement of gun is Strobe 9, Bits 0-7.
Movement is from 0000 0000 to 1111 1111
*/
bcd_7445 = data & 15;
}
static READ8_HANDLER( zpu_inputs_r )
{
static const char *const strobenames[] = { "ZPU", "DSW0", "DSW1", "DSW2", "DSW3", "BUTTONS", "STICK0_X", "STICK0_Y", "STICK1_X", "STICK1_Y" };
UINT8 ret = 0;
if (bcd_7445<10)
{
ret = input_port_read(machine, strobenames[bcd_7445]);
}
return ret;
}
static WRITE8_HANDLER(zpu_led_w)
{
/* 0x6e - reset (offset = 0)*/
/* 0x6f - set */
set_led_status(0, offset&1 );
}
static WRITE8_HANDLER(zpu_lamps_w)
{
/* bit 4 = /LAMP0 */
/* bit 5 = /LAMP1 */
/*set_led_status(0, (data&0x10)>>4 );*/
/*set_led_status(1, (data&0x20)>>4 );*/
}
static WRITE8_HANDLER(zpu_coin_counter_w)
{
/* bit 6 = coin counter */
coin_counter_w(offset, (data&0x40)>>6 );
}
static ADDRESS_MAP_START( io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x4c, 0x4f) AM_READWRITE(ls670_1_r, ls670_0_w)
AM_RANGE(0x60, 0x60) AM_WRITE(zpu_bcd_decoder_w)
AM_RANGE(0x62, 0x62) AM_READ(zpu_inputs_r)
AM_RANGE(0x68, 0x68) AM_WRITE(zpu_coin_counter_w)
AM_RANGE(0x6a, 0x6a) AM_WRITE(zpu_lamps_w)
AM_RANGE(0x6e, 0x6f) AM_WRITE(zpu_led_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_READ(SMH_ROM)
AM_RANGE(0xc000, 0xc7ff) AM_READ(sharedram_CFB_ZPU_r)
AM_RANGE(0xd800, 0xd800) AM_READ(cfb_zpu_int_req_clr)
AM_RANGE(0xe000, 0xe7ff) AM_READ(SMH_RAM)
AM_RANGE(0xe800, 0xefff) AM_READ(SMH_RAM)
ADDRESS_MAP_END
static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_WRITE(SMH_ROM)
AM_RANGE(0xc000, 0xc7ff) AM_WRITE(sharedram_CFB_ZPU_w)
AM_RANGE(0xe000, 0xe7ff) AM_WRITE(SMH_RAM) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0xe800, 0xefff) AM_WRITE(SMH_RAM)
ADDRESS_MAP_END
static UINT8 vsb_ls273;
static WRITE8_HANDLER( vsb_ls273_audio_control_w )
{
vsb_ls273 = data;
/* bit 5 - led on */
set_led_status(1,(data&0x20)>>5);
}
static ADDRESS_MAP_START( cpu2_io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_WRITE(vsb_ls273_audio_control_w)
AM_RANGE(0x80, 0x83) AM_READWRITE(ls670_0_r, ls670_1_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START( readmem_cpu2, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_READ(SMH_ROM)
AM_RANGE(0x4000, 0x43ff) AM_READ(SMH_RAM)
AM_RANGE(0x8000, 0x83ff) AM_READ(SMH_RAM)
ADDRESS_MAP_END
static ADDRESS_MAP_START( writemem_cpu2, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_WRITE(SMH_ROM)
AM_RANGE(0x4000, 0x43ff) AM_WRITE(SMH_RAM) /* main RAM (stack) */
AM_RANGE(0x8000, 0x83ff) AM_WRITE(SMH_RAM) /* waveform ???*/
ADDRESS_MAP_END
/* Color Frame Buffer PCB */
static WRITE8_HANDLER ( cfb_ram_w )
{
cfb_ram[offset] = data;
}
static READ8_HANDLER ( cfb_ram_r )
{
return cfb_ram[offset];
}
static WRITE8_HANDLER(cfb_led_w)
{
/* bit 7 - led on */
set_led_status(2,(data&0x80)>>7);
}
static UINT8 bknd_col = 0xaa;
static WRITE8_HANDLER(cfb_backgnd_color_w)
{
if (bknd_col != data)
{
int r,g,b, bit0, bit1, bit2;
bknd_col = data;
/* red component */
bit1 = (data >> 7) & 0x01;
bit0 = (data >> 6) & 0x01;
r = combine_2_weights(weights_r, bit0, bit1);
/* green component */
bit2 = (data >> 5) & 0x01;
bit1 = (data >> 4) & 0x01;
bit0 = (data >> 3) & 0x01;
g = combine_3_weights(weights_g, bit0, bit1, bit2);
/* blue component */
bit2 = (data >> 2) & 0x01;
bit1 = (data >> 1) & 0x01;
bit0 = (data >> 0) & 0x01;
b = combine_3_weights(weights_b, bit0, bit1, bit2);
palette_set_color(machine, 255, MAKE_RGB(r, g, b));
//logerror("background color (port 01) write=%02x\n",data);
}
}
static WRITE8_HANDLER(cfb_vbank_w)
{
data = (data & 0x40)>>6; /* only bit 6 connected */
if (vbank != data)
{
vbank = data;
//logerror("vbank=%1x\n",vbank);
}
}
static WRITE8_HANDLER(cfb_rom_bank_sel_w) /* mazer blazer */
{
gfx_rom_bank = data;
memory_set_bankptr( 1, memory_region(machine, "sub2") + (gfx_rom_bank * 0x2000) + 0x10000 );
}
static WRITE8_HANDLER(cfb_rom_bank_sel_w_gg) /* great guns */
{
gfx_rom_bank = data>>1;
memory_set_bankptr( 1, memory_region(machine, "sub2") + (gfx_rom_bank * 0x2000) + 0x10000 );
}
/* ????????????? */
static UINT8 port02_status = 0;
static READ8_HANDLER( cfb_port_02_r )
{
port02_status ^= 0xff;
return (port02_status);
}
static ADDRESS_MAP_START( cpu3_io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x01, 0x01) AM_WRITE(cfb_backgnd_color_w)
AM_RANGE(0x02, 0x02) AM_READWRITE(cfb_port_02_r, cfb_led_w) /* Read = VCU status ? */
AM_RANGE(0x03, 0x03) AM_WRITE(cfb_zpu_int_req_set_w)
AM_RANGE(0x04, 0x04) AM_WRITE(cfb_rom_bank_sel_w)
AM_RANGE(0x05, 0x05) AM_WRITE(cfb_vbank_w) //visible/writable videopage select?
ADDRESS_MAP_END
/* Great Guns has a little different banking layout */
static ADDRESS_MAP_START( gg_cpu3_io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_WRITE(SMH_NOP)
AM_RANGE(0x01, 0x01) AM_WRITE(cfb_backgnd_color_w)
AM_RANGE(0x02, 0x02) AM_READWRITE(cfb_port_02_r, cfb_led_w) /* Read = VCU status ? */
AM_RANGE(0x03, 0x03) AM_WRITE(cfb_zpu_int_req_set_w)
AM_RANGE(0x04, 0x04) AM_WRITE(cfb_rom_bank_sel_w_gg)
AM_RANGE(0x05, 0x05) AM_WRITE(cfb_vbank_w) //visible/writable videopage select?
ADDRESS_MAP_END
static UINT8 VCU_video_reg[4];
static WRITE8_HANDLER( VCU_video_reg_w )
{
if (VCU_video_reg[offset] != data)
{
VCU_video_reg[offset] = data;
//popmessage("video_reg= %02x %02x %02x %02x", VCU_video_reg[0], VCU_video_reg[1], VCU_video_reg[2], VCU_video_reg[3] );
//logerror("video_reg= %02x %02x %02x %02x\n", VCU_video_reg[0], VCU_video_reg[1], VCU_video_reg[2], VCU_video_reg[3] );
}
}
static READ8_HANDLER( VCU_set_cmd_param_r )
{
VCU_gfx_param_addr = offset;
/* offset = 0 is not known */
xpos = cfb_ram[VCU_gfx_param_addr + 1] | (cfb_ram[VCU_gfx_param_addr + 2]<<8);
ypos = cfb_ram[VCU_gfx_param_addr + 3] | (cfb_ram[VCU_gfx_param_addr + 4]<<8);
color = cfb_ram[VCU_gfx_param_addr + 5];
color2 = cfb_ram[VCU_gfx_param_addr + 6];
mode = cfb_ram[VCU_gfx_param_addr + 7];
pix_xsize = cfb_ram[VCU_gfx_param_addr + 8];
pix_ysize = cfb_ram[VCU_gfx_param_addr + 9];
plane = mode & 3;
return 0;
}
static READ8_HANDLER( VCU_set_gfx_addr_r )
{
int offs;
int x,y;
int bits = 0;
UINT8 color_base=0;
UINT8 * rom = memory_region(machine, "sub2") + (gfx_rom_bank * 0x2000) + 0x10000;
/*
if ((mode<=0x07) || (mode>=0x10))
{
logerror("paradr=");
logerror("%3x ",VCU_gfx_param_addr );
logerror("%02x ", cfb_ram[VCU_gfx_param_addr + 0] );
logerror("x=%04x ", xpos ); //1,2
logerror("y=%04x ", ypos ); //3,4
logerror("color=%02x ", color); //5
logerror("color2=%02x ", color2); //6
logerror("mode=%02x ", mode ); //7
logerror("xpix=%02x ", pix_xsize ); //8
logerror("ypix=%02x ", pix_ysize ); //9
logerror("addr=%4i bank=%1i\n", offset, gfx_rom_bank);
}
*/
VCU_gfx_addr = offset;
/* draw */
offs = VCU_gfx_addr;
switch(mode)
{
/* 2 bits per pixel */
case 0x0f:
case 0x0e:
case 0x0d:
case 0x0c:
//if (dbg_gfx_e)
//{
//if (vbank==dbg_vbank)
{
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 constant: matches Mazer Blazer movie */
if (game_id==GREATGUN)
color_base = 0x0;
for (y = 0; y <= pix_ysize; y++)
{
for (x = 0; x <= pix_xsize; x++)
{
UINT8 pixeldata = rom[(offs + (bits>>3)) % 0x2000];
UINT8 data = (pixeldata>>(6-(bits&7))) & 3;
UINT8 col = 0;
switch(data)
{
case 0:
col = color_base | ((color &0x0f)); //background PEN
break;
case 1:
col = color_base | ((color &0xf0)>>4); //foreground PEN
break;
case 2:
col = color_base | ((color2 &0x0f)); //background PEN2
break;
case 3:
col = color_base | ((color2 &0xf0)>>4); //foreground PEN2
break;
}
if ( ((xpos+x)<256) && ((ypos+y)<256) )
{
*BITMAP_ADDR16(tmpbitmaps[plane], ypos+y, xpos+x) = col;
}
bits+=2;
}
}
}
//}
break;
/* 1 bit per pixel */
case 0x0b:/* verified - 1bpp ; used for 'cleaning' using color 0xff */
case 0x0a:/* verified - 1bpp */
case 0x09:/* verified - 1bpp: gun crosshair */
case 0x08:/* */
//if (dbg_gfx_e)
//{
//if (vbank==dbg_vbank)
{
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 - good for Mazer Blazer: (only in game, CRT test mode is bad) */
if (game_id==GREATGUN)
color_base = 0x0; /* 0x00 - good for Great Guns: (both in game and CRT test mode) */
for (y = 0; y <= pix_ysize; y++)
{
for (x = 0; x <= pix_xsize; x++)
{
UINT8 pixeldata = rom[(offs + (bits>>3)) % 0x2000];
UINT8 data = (pixeldata>>(7-(bits&7))) & 1;
/* color = 4 MSB = front PEN, 4 LSB = background PEN */
if ( ((xpos+x)<256) && ((ypos+y)<256) )
{
*BITMAP_ADDR16(tmpbitmaps[plane], ypos+y, xpos+x) = data? color_base | ((color&0xf0)>>4): color_base | ((color&0x0f));
}
bits+=1;
}
}
}
//}
break;
/* 4 bits per pixel */
case 0x03:
case 0x01:
case 0x00:
//if (dbg_gfx_e)
//{
//if (vbank==dbg_vbank)
{
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 - good for Mazer Blazer: (only in game, CRT test mode is bad) */
if (game_id==GREATGUN)
color_base = 0x0; /* 0x00 - good for Great Guns: (both in game and CRT test mode) */
for (y = 0; y <= pix_ysize; y++)
{
for (x = 0; x <= pix_xsize; x++)
{
UINT8 pixeldata = rom[(offs + (bits>>3)) % 0x2000];
UINT8 data = (pixeldata>>(4-(bits&7))) & 15;
UINT8 col = 0;
col = color_base | data;
if ( ((xpos+x)<256) && ((ypos+y)<256) )
{
*BITMAP_ADDR16(tmpbitmaps[plane], ypos+y, xpos+x) = col;
}
bits+=4;
}
}
}
//}
break;
default:
popmessage("not supported VCU drawing mode=%2x", mode);
break;
}
return 0;
}
static READ8_HANDLER( VCU_set_clr_addr_r )
{
int offs;
int x,y;
int bits = 0;
UINT8 color_base=0;
UINT8 * rom = memory_region(machine, "sub2") + (gfx_rom_bank * 0x2000) + 0x10000;
/*
//if (0) //(mode != 0x07)
{
logerror("paladr=");
logerror("%3x ",VCU_gfx_param_addr );
logerror("%02x ", cfb_ram[VCU_gfx_param_addr + 0] );
logerror("x=%04x ", xpos ); //1,2
logerror("y=%04x ", ypos ); //3,4
logerror("color=%02x ", color); //5
logerror("color2=%02x ", color2 ); //6
logerror("mode=%02x ", mode ); //7
logerror("xpix=%02x ", pix_xsize ); //8
logerror("ypix=%02x ", pix_ysize ); //9
logerror("addr=%4i bank=%1i\n", offset, gfx_rom_bank);
for (y=0; y<16; y++)
{
logerror("%04x: ",offset+y*16);
for (x=0; x<16; x++)
{
logerror("%02x ",cfb_ram[offset+x+y*16]);
}
logerror("\n");
}
}
*/
/* copy palette / CLUT(???) */
switch(mode)
{
case 0x13: /* draws sprites?? in mazer blazer and ... wrong sprite in place of targeting-cross and UFO laser */
case 0x03:
/* ... this may proove that there is really only one area and that
the draw command/palette selector is done via the 'mode' only ... */
//if (dbg_clr_e)
{
offs = VCU_gfx_addr;
if (game_id==MAZERBLA)
color_base = 0x80; /* 0x80 constant: matches Mazer Blazer movie */
if (game_id==GREATGUN)
color_base = 0x0;
for (y = 0; y <= pix_ysize; y++)
{
for (x = 0; x <= pix_xsize; x++)
{
UINT8 pixeldata = rom[(offs + (bits>>3)) % 0x2000];
UINT8 data = (pixeldata>>(6-(bits&7))) & 3;
UINT8 col = 0;
switch(data)
{
case 0:
col = color_base | ((color &0x0f)); //background PEN
break;
case 1:
col = color_base | ((color &0xf0)>>4); //foreground PEN
break;
case 2:
col = color_base | ((color2 &0x0f)); //background PEN2
break;
case 3:
col = color_base | ((color2 &0xf0)>>4); //foreground PEN2
break;
}
if ( ((xpos+x)<256) && ((ypos+y)<256) )
{
*BITMAP_ADDR16(tmpbitmaps[plane], ypos+y, xpos+x) = col;
}
bits+=2;
}
}
}
break;
/* Palette / "something else" write mode */
case 0x07:
offs = offset;
switch(ypos)
{
case 6: //seems to encode palete write
{
int r,g,b, bit0, bit1, bit2;
//pix_xsize and pix_ysize seem to be related to palette length ? (divide by 2)
int lookup_offs = (ypos>>1)*256; //=3*256
for (y=0; y<16; y++)
{
for (x=0; x<16; x++)
{
UINT8 colour = cfb_ram[ offs + x + y*16 ];
/* red component */
bit1 = (colour >> 7) & 0x01;
bit0 = (colour >> 6) & 0x01;
r = combine_2_weights(weights_r, bit0, bit1);
/* green component */
bit2 = (colour >> 5) & 0x01;
bit1 = (colour >> 4) & 0x01;
bit0 = (colour >> 3) & 0x01;
g = combine_3_weights(weights_g, bit0, bit1, bit2);
/* blue component */
bit2 = (colour >> 2) & 0x01;
bit1 = (colour >> 1) & 0x01;
bit0 = (colour >> 0) & 0x01;
b = combine_3_weights(weights_b, bit0, bit1, bit2);
if ((x+y*16)<255)//keep color 255 free for use as background color
palette_set_color(machine, x+y*16, MAKE_RGB(r, g, b));
lookup_RAM[ lookup_offs + x + y*16 ] = colour;
}
}
}
break;
case 4: //seems to encode lookup???? table write
{
int lookup_offs = (ypos>>1)*256; //=2*256
for (y=0; y<16; y++)
{
for (x=0; x<16; x++)
{
UINT8 dat = cfb_ram[ offs + x + y*16 ];
lookup_RAM[ lookup_offs + x + y*16 ] = dat;
}
}
}
break;
case 2: //seems to encode lookup???? table write
{
int lookup_offs = (ypos>>1)*256; //=1*256
for (y=0; y<16; y++)
{
for (x=0; x<16; x++)
{
UINT8 dat = cfb_ram[ offs + x + y*16 ];
lookup_RAM[ lookup_offs + x + y*16 ] = dat;
}
}
}
break;
case 0: //seems to encode lookup???? table write
{
int lookup_offs = (ypos>>1)*256; //=0*256
for (y=0; y<16; y++)
{
for (x=0; x<16; x++)
{
UINT8 dat = cfb_ram[ offs + x + y*16 ];
lookup_RAM[ lookup_offs + x + y*16 ] = dat;
}
}
}
break;
default:
popmessage("not supported lookup/color write mode=%2x", ypos);
break;
}
break;
default:
popmessage("not supported VCU color mode=%2x", mode);
break;
}
return 0;
}
static ADDRESS_MAP_START( readmem_cpu3, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x37ff) AM_READ(SMH_ROM)
AM_RANGE(0x3800, 0x3fff) AM_READ(sharedram_CFB_ZPU_r)
AM_RANGE(0x4000, 0x5fff) AM_READ(SMH_BANK1) /* GFX roms */
AM_RANGE(0x6000, 0x67ff) AM_READ(cfb_ram_r) /* RAM for VCU commands and parameters */
AM_RANGE(0xa000, 0xa7ff) AM_READ(VCU_set_cmd_param_r) /* VCU command and parameters LOAD */
AM_RANGE(0xc000, 0xdfff) AM_READ(VCU_set_gfx_addr_r) /* gfx LOAD (blit) */
AM_RANGE(0xe000, 0xffff) AM_READ(VCU_set_clr_addr_r) /* palette? LOAD */
ADDRESS_MAP_END
static ADDRESS_MAP_START( writemem_cpu3, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x37ff) AM_WRITE(SMH_ROM)
AM_RANGE(0x3800, 0x3fff) AM_WRITE(sharedram_CFB_ZPU_w) AM_BASE(&cfb_zpu_sharedram)
AM_RANGE(0x4000, 0x4003) AM_WRITE(VCU_video_reg_w)
AM_RANGE(0x6000, 0x67ff) AM_WRITE(cfb_ram_w) AM_BASE(&cfb_ram)
ADDRESS_MAP_END
/* Great Guns */
static UINT8 soundlatch;
static READ8_HANDLER( soundcommand_r )
{
return soundlatch;
}
static TIMER_CALLBACK( delayed_sound_w )
{
soundlatch = param;
/* cause NMI on sound CPU */
cpunum_set_input_line(machine, 1, INPUT_LINE_NMI, ASSERT_LINE);
}
static WRITE8_HANDLER( main_sound_w )
{
timer_call_after_resynch(NULL, data & 0xff, delayed_sound_w);
}
static ADDRESS_MAP_START( gg_io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x4c, 0x4c) AM_WRITE(main_sound_w)
AM_RANGE(0x60, 0x60) AM_WRITE(zpu_bcd_decoder_w)
AM_RANGE(0x62, 0x62) AM_READ(zpu_inputs_r)
AM_RANGE(0x66, 0x66) AM_WRITE(SMH_NOP)
AM_RANGE(0x68, 0x68) AM_WRITE(SMH_NOP)
AM_RANGE(0x6e, 0x6f) AM_WRITE(zpu_led_w)
ADDRESS_MAP_END
/* frequency is 14.318 MHz/16/16/16/16 */
static INTERRUPT_GEN( sound_interrupt )
{
cpunum_set_input_line(machine, 1, 0, ASSERT_LINE);
}
static WRITE8_HANDLER( sound_int_clear_w )
{
cpunum_set_input_line(machine, 1, 0, CLEAR_LINE);
}
static WRITE8_HANDLER( sound_nmi_clear_w )
{
cpunum_set_input_line(machine, 1, INPUT_LINE_NMI, CLEAR_LINE);
}
static WRITE8_HANDLER( gg_led_ctrl_w )
{
/* bit 0, bit 1 - led on */
set_led_status(1,data&0x01);
}
static ADDRESS_MAP_START( sound_readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_READ(SMH_ROM)
AM_RANGE(0x2000, 0x27ff) AM_READ(SMH_RAM)
AM_RANGE(0x4000, 0x4000) AM_READ(ay8910_read_port_0_r)
ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_writemem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_WRITE(SMH_ROM)
AM_RANGE(0x2000, 0x27ff) AM_WRITE(SMH_RAM) /* main RAM (stack) */
AM_RANGE(0x4000, 0x4000) AM_WRITE(ay8910_control_port_0_w)
AM_RANGE(0x4001, 0x4001) AM_WRITE(ay8910_write_port_0_w)
AM_RANGE(0x6000, 0x6000) AM_WRITE(ay8910_control_port_1_w)
AM_RANGE(0x6001, 0x6001) AM_WRITE(ay8910_write_port_1_w)
AM_RANGE(0x8000, 0x8000) AM_WRITE(sound_int_clear_w)
AM_RANGE(0xa000, 0xa000) AM_WRITE(sound_nmi_clear_w)
ADDRESS_MAP_END
static INPUT_PORTS_START( mazerbla )
PORT_START("ZPU") /* Strobe 0: ZPU Switches */
PORT_DIPNAME( 0x40, 0x40, "ZPU Switch 1" )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, "ZPU Switch 2" )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("DSW0") /* Strobe 1: Dip Switches 28-35*/
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPNAME( 0x0c, 0x00, "Freeze Time" )
PORT_DIPSETTING( 0x0c, "1.5 seconds" )
PORT_DIPSETTING( 0x08, "2.0 seconds" )
PORT_DIPSETTING( 0x04, "2.5 seconds" )
PORT_DIPSETTING( 0x00, "3.0 seconds" )
PORT_DIPNAME( 0x30, 0x00, "Number of points for extra frezze & first life" )
PORT_DIPSETTING( 0x30, "20000" )
PORT_DIPSETTING( 0x20, "25000" )
PORT_DIPSETTING( 0x10, "30000" )
PORT_DIPSETTING( 0x00, "35000" )
PORT_DIPNAME( 0xc0, 0x00, "Number of points for extra life other than first" )
PORT_DIPSETTING( 0xc0, "40000" )
PORT_DIPSETTING( 0x80, "50000" )
PORT_DIPSETTING( 0x40, "60000" )
PORT_DIPSETTING( 0x00, "70000" )
PORT_START("DSW1") /* Strobe 2: Dip Switches 20-27*/
PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x06, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 4C_3C ) )
PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 4C_5C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 4C_7C ) )
PORT_DIPSETTING( 0x0e, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 2C_5C ) )
PORT_DIPSETTING( 0x0d, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x03, DEF_STR( 2C_7C ) )
PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0x0b, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0x0a, DEF_STR( 1C_6C ) )
PORT_DIPSETTING( 0x09, DEF_STR( 1C_7C ) )
PORT_DIPSETTING( 0x08, "1 Coin/10 Credits" )
PORT_DIPSETTING( 0x07, "1 Coin/14 Credits" )
PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x60, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x20, DEF_STR( 4C_3C ) )
PORT_DIPSETTING( 0xf0, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x10, DEF_STR( 4C_5C ) )
PORT_DIPSETTING( 0x50, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 4C_7C ) )
PORT_DIPSETTING( 0xe0, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x40, DEF_STR( 2C_5C ) )
PORT_DIPSETTING( 0xd0, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x30, DEF_STR( 2C_7C ) )
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0xb0, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0xa0, DEF_STR( 1C_6C ) )
PORT_DIPSETTING( 0x90, DEF_STR( 1C_7C ) )
PORT_DIPSETTING( 0x80, "1 Coin/10 Credits" )
PORT_DIPSETTING( 0x70, "1 Coin/14 Credits" )
PORT_START("DSW2") /* Strobe 3: Dip Switches 12-19*/
PORT_DIPNAME( 0x01, 0x01, "Service Index" )
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x02, "Switch Test" )
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Free_Play ) )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, "Player Immortality" )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x10, 0x10, "Super Shot" )
PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x20, 0x00, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("DSW3") /* Strobe 4: Dip Switches 4-11 */
PORT_DIPNAME( 0x03, 0x02, "Number of Freezes" )
PORT_DIPSETTING( 0x03, "4" )
PORT_DIPSETTING( 0x02, "3" )
PORT_DIPSETTING( 0x01, "2" )
PORT_DIPSETTING( 0x00, "1" )
PORT_DIPNAME( 0x04, 0x04, "Gun Knocker" )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
//dips 7-11 - not listed in manual
PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("BUTTONS") /* Strobe 5: coin1&2, start1&2, fire */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("STICK0_X") /* Strobe 6: horizontal movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(1)
PORT_START("STICK0_Y") /* Strobe 7: vertical movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_PLAYER(1)
/* Mazer Blazer cabinet has only one gun, really */
PORT_START("STICK1_X") /* Strobe 8: horizontal movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(2)
PORT_START("STICK1_Y") /* Strobe 9: vertical movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_PLAYER(2)
INPUT_PORTS_END
static INPUT_PORTS_START( greatgun )
PORT_START("ZPU") /* Strobe 0: ZPU Switches */
PORT_DIPNAME( 0x40, 0x40, "ZPU Switch 1" )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, "ZPU Switch 2" )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("DSW0") /* Strobe 1: Dip Switches 28-35*/
PORT_DIPNAME( 0x03, 0x00, "Starting Number of Bullets/Credit" )
PORT_DIPSETTING( 0x03, "60" )
PORT_DIPSETTING( 0x02, "70" )
PORT_DIPSETTING( 0x01, "80" )
PORT_DIPSETTING( 0x00, "90" )
PORT_DIPNAME( 0x0c, 0x00, "Target Size" )
PORT_DIPSETTING( 0x0c, "7 x 7" )
PORT_DIPSETTING( 0x08, "9 x 9" )
PORT_DIPSETTING( 0x04, "11x11" )
PORT_DIPSETTING( 0x00, "7 x 7" )
PORT_DIPNAME( 0x70, 0x00, "Number of points for extra bullet" )
PORT_DIPSETTING( 0x70, "1000" )
PORT_DIPSETTING( 0x60, "2000" )
PORT_DIPSETTING( 0x50, "3000" )
PORT_DIPSETTING( 0x40, "4000" )
PORT_DIPSETTING( 0x30, "5000" )
PORT_DIPSETTING( 0x20, "6000" )
PORT_DIPSETTING( 0x10, "7000" )
PORT_DIPSETTING( 0x00, "8000" )
/* from manual:
"This switch is used when an optional coin return or ticket dispenser is used"
*/
PORT_DIPNAME( 0x80, 0x00, "Number of coins or tickets returned" )
PORT_DIPSETTING( 0x80, "1" )
PORT_DIPSETTING( 0x00, "2" )
PORT_START("DSW1") /* Strobe 2: Dip Switches 20-27*/
PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x06, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 4C_3C ) )
PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 4C_5C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 4C_7C ) )
PORT_DIPSETTING( 0x0e, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 2C_5C ) )
PORT_DIPSETTING( 0x0d, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x03, DEF_STR( 2C_7C ) )
PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0x0b, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0x0a, DEF_STR( 1C_6C ) )
PORT_DIPSETTING( 0x09, DEF_STR( 1C_7C ) )
PORT_DIPSETTING( 0x08, "1 Coin/10 Credits" )
PORT_DIPSETTING( 0x07, "1 Coin/14 Credits" )
PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x60, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x20, DEF_STR( 4C_3C ) )
PORT_DIPSETTING( 0xf0, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x10, DEF_STR( 4C_5C ) )
PORT_DIPSETTING( 0x50, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 4C_7C ) )
PORT_DIPSETTING( 0xe0, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x40, DEF_STR( 2C_5C ) )
PORT_DIPSETTING( 0xd0, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x30, DEF_STR( 2C_7C ) )
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0xb0, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0xa0, DEF_STR( 1C_6C ) )
PORT_DIPSETTING( 0x90, DEF_STR( 1C_7C ) )
PORT_DIPSETTING( 0x80, "1 Coin/10 Credits" )
PORT_DIPSETTING( 0x70, "1 Coin/14 Credits" )
PORT_START("DSW2") /* Strobe 3: Dip Switches 12-19*/
PORT_DIPNAME( 0x01, 0x01, "Service Index" )
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x02, "Switch Test" )
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Free_Play ) )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, "Player Immortality" )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x10, 0x10, "Rack Advance" )
PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x20, 0x00, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) //probably unused
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("DSW3") /* Strobe 4: Dip Switches 4-11 */
PORT_DIPNAME( 0x01, 0x01, "Free game/coin return" )
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
//dips 5-11 - not listed in manual
PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("BUTTONS") /* Strobe 5: coin1&2, start1&2, fire */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4 )
PORT_START("STICK0_X") /* Strobe 6: horizontal movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_PLAYER(1)
PORT_START("STICK0_Y") /* Strobe 7: vertical movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_PLAYER(1)
PORT_START("STICK1_X") /* Strobe 8: horizontal movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_PLAYER(2)
PORT_START("STICK1_Y") /* Strobe 9: vertical movement of gun */
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_PLAYER(2)
INPUT_PORTS_END
static MACHINE_RESET( mazerbla )
{
game_id = MAZERBLA;
zpu_int_vector = 0xff;
cpunum_set_irq_callback(0, irq_callback);
}
static MACHINE_RESET( greatgun )
{
UINT8 *rom = memory_region(machine, "sub2");
game_id = GREATGUN;
zpu_int_vector = 0xff;
cpunum_set_irq_callback(0, irq_callback);
//patch VCU test
//VCU test starts at PC=0x56f
rom[0x05b6] = 0;
rom[0x05b7] = 0;
//so we also need to patch ROM checksum test
rom[0x037f] = 0;
rom[0x0380] = 0;
}
/* only Great Guns */
static const ay8910_interface ay8912_interface_1 =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
NULL,
soundcommand_r,
NULL,
NULL
};
static const ay8910_interface ay8912_interface_2 =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
NULL,
NULL,
NULL,
gg_led_ctrl_w
};
static MACHINE_DRIVER_START( mazerbla )
/* basic machine hardware */
MDRV_CPU_ADD("main", Z80, 4000000) /* 4 MHz, no NMI, IM2 - vectors at 0xf8, 0xfa, 0xfc */
MDRV_CPU_PROGRAM_MAP(readmem,writemem)
MDRV_CPU_IO_MAP(io_map,0)
MDRV_CPU_ADD("sub", Z80, 4000000) /* 4 MHz, NMI, IM1 INT */
MDRV_CPU_PROGRAM_MAP(readmem_cpu2,writemem_cpu2)
MDRV_CPU_IO_MAP(cpu2_io_map,0)
//MDRV_CPU_PERIODIC_INT(irq0_line_hold, 400 ) /* frequency in Hz */
MDRV_CPU_ADD("sub2", Z80, 4000000) /* 4 MHz, no NMI, IM1 INT */
MDRV_CPU_PROGRAM_MAP(readmem_cpu3,writemem_cpu3)
MDRV_CPU_IO_MAP(cpu3_io_map,0)
/* (vblank related ??) int generated by a custom video processor
and cleared on ANY port access.
but handled differently for now
*/
MDRV_CPU_VBLANK_INT("main", irq0_line_hold)
/* synchronization forced on the fly */
MDRV_MACHINE_RESET(mazerbla)
/* video hardware */
MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(40*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
MDRV_PALETTE_LENGTH(256)
MDRV_PALETTE_INIT(mazerbla)
MDRV_VIDEO_START(mazerbla)
MDRV_VIDEO_UPDATE(mazerbla)
/* sound hardware */
MACHINE_DRIVER_END
static MACHINE_DRIVER_START( greatgun )
/* basic machine hardware */
MDRV_CPU_ADD("main", Z80, 4000000) /* 4 MHz, no NMI, IM2 - vectors at 0xf8, 0xfa, 0xfc */
MDRV_CPU_PROGRAM_MAP(readmem,writemem)
MDRV_CPU_IO_MAP(gg_io_map,0)
MDRV_CPU_ADD("sub", Z80, 14318000 / 4) /* 3.579500 MHz, NMI - caused by sound command write, periodic INT */
MDRV_CPU_PROGRAM_MAP(sound_readmem,sound_writemem)
MDRV_CPU_PERIODIC_INT(sound_interrupt, (double)14318180/16/16/16/16 )
MDRV_CPU_ADD("sub2", Z80, 4000000) /* 4 MHz, no NMI, IM1 INT */
MDRV_CPU_PROGRAM_MAP(readmem_cpu3,writemem_cpu3)
MDRV_CPU_IO_MAP(gg_cpu3_io_map,0)
/* (vblank related ??) int generated by a custom video processor
and cleared on ANY port access.
but handled differently for now
*/
MDRV_CPU_VBLANK_INT("main", irq0_line_hold)
MDRV_MACHINE_RESET(greatgun)
/* video hardware */
MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(40*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
MDRV_PALETTE_LENGTH(256)
MDRV_PALETTE_INIT(mazerbla)
MDRV_VIDEO_START(mazerbla)
MDRV_VIDEO_UPDATE(greatgun)
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD("ay1", AY8910, 14318000 / 8)
MDRV_SOUND_CONFIG(ay8912_interface_1)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
MDRV_SOUND_ADD("ay2", AY8910, 14318000 / 8)
MDRV_SOUND_CONFIG(ay8912_interface_2)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( mazerbla )
ROM_REGION( 0x10000, "main", 0 ) /* 64k for main CPU (ZPU board) */
ROM_LOAD( "mblzpu0.bin",0x0000, 0x2000, CRC(82766187) SHA1(cfc425c87cccb84180f1091998eafeaede126d9d) )
ROM_LOAD( "mblzpu1.bin",0x2000, 0x2000, CRC(8ba2b3f9) SHA1(1d203332e434d1d9821f98c6ac959ae65dcc51ef) )
ROM_LOAD( "mblzpu2.bin",0x4000, 0x2000, CRC(48e5306c) SHA1(d27cc85d24c7b6c23c5c96be4dad5cae6e8069be) )
ROM_LOAD( "mblzpu3.bin",0x6000, 0x2000, CRC(eba91546) SHA1(8c1da4e0d9b562dbbf7c7583dbf567c804eb670f) )
ROM_REGION( 0x10000, "sub", 0 ) /* 64k for sound CPU (VSB board) */
ROM_LOAD( "mblvsb0.bin",0x0000, 0x1000, CRC(0cf7a1c3) SHA1(af27e3a3b51d03d46c62c2797268744d0577d075) )
ROM_LOAD( "mblvsb1.bin",0x1000, 0x1000, CRC(0b8d0e43) SHA1(b3ddb7561e715a58ca512fe76e53cda39402a8e4) )
ROM_REGION( 0x18000, "sub2", 0 ) /* 64k for video CPU (CFB board) */
ROM_LOAD( "mblrom0.bin",0x0000, 0x2000, CRC(948a2c5e) SHA1(d693f1b96caf31649f600c5038bb79b0d1d16133) )
ROM_LOAD( "mblrom2.bin",0x10000,0x2000, CRC(36237058) SHA1(9db8fced37a3d40c4ea5b87ea18ac8e75d71e586) )/*banked at 0x4000 (select=0)*/
ROM_LOAD( "mblrom3.bin",0x12000,0x2000, CRC(18d75d7f) SHA1(51c35ea4a2127439a1299863eb74e57be833e2e4) )/*banked at 0x4000 (select=1)*/
/* empty socket??? (the *name* of next rom seems good ?) or wrong schematics ?*/
ROM_LOAD( "mblrom4.bin",0x16000,0x2000, CRC(1805acdc) SHA1(40b8e70e6ba69ac864af0b276e81218e63e48deb) )/*banked at 0x4000 (select=3)*/
ROM_REGION( 0x00240, "proms", 0 )
ROM_LOAD( "sndprom.8b", 0x0000, 0x0020, CRC(d558af5a) SHA1(060556beeb1f6732c4520dcfb0086c428f7b9ce3) )
ROM_LOAD( "sndprom.9b", 0x0020, 0x0020, CRC(0390d748) SHA1(df0f750c1df45cc7bfb9dbabfa2b94563d19172a) )
ROM_LOAD( "sndprom.8g", 0x0040, 0x0100, CRC(19680615) SHA1(c309eb83e66b202bae9174dc2ffce231fca40644) )
ROM_LOAD( "sndprom.9g", 0x0140, 0x0100, CRC(f8c2c85b) SHA1(d9514af5682a2c5dec5366dcbdf5c7f6ef9f5380) )
ROM_END
ROM_START( mzrblzra )
ROM_REGION( 0x10000, "main", 0 ) /* 64k for main CPU (ZPU board) */
ROM_LOAD( "zpu0", 0x0000, 0x2000, CRC(aa77705c) SHA1(ef93c3eaa66591bef495caa101ef2aff93f2de8c) )
ROM_LOAD( "zpu1", 0x2000, 0x2000, CRC(599e1b97) SHA1(ceeb3017d6130d4d54ff4436261f2d3f2a29f8ab) )
ROM_LOAD( "zpu2", 0x4000, 0x2000, CRC(e1504613) SHA1(815b56e067d60dda6c5ebed97ef8da3f6c2927ad) )
ROM_LOAD( "zpu3", 0x6000, 0x2000, CRC(fd27f409) SHA1(e3d49b931325c75cc0c1075944095bb48501501f) )
ROM_REGION( 0x10000, "sub", 0 ) /* 64k for sound CPU (VSB board) */
ROM_LOAD( "mblvsb0.bin",0x0000, 0x1000, CRC(0cf7a1c3) SHA1(af27e3a3b51d03d46c62c2797268744d0577d075) )
ROM_LOAD( "mblvsb1.bin",0x1000, 0x1000, CRC(0b8d0e43) SHA1(b3ddb7561e715a58ca512fe76e53cda39402a8e4) )
ROM_REGION( 0x18000, "sub2", 0 ) /* 64k for video CPU (CFB board) */
ROM_LOAD( "mblrom0.bin",0x0000, 0x2000, CRC(948a2c5e) SHA1(d693f1b96caf31649f600c5038bb79b0d1d16133) )
ROM_LOAD( "mblrom2.bin",0x10000,0x2000, CRC(36237058) SHA1(9db8fced37a3d40c4ea5b87ea18ac8e75d71e586) )/*banked at 0x4000 (select=0)*/
ROM_LOAD( "mblrom3.bin",0x12000,0x2000, CRC(18d75d7f) SHA1(51c35ea4a2127439a1299863eb74e57be833e2e4) )/*banked at 0x4000 (select=1)*/
/* empty socket??? (the *name* of next rom seems good ?) or wrong schematics ?*/
ROM_LOAD( "mblrom4.bin",0x16000,0x2000, CRC(1805acdc) SHA1(40b8e70e6ba69ac864af0b276e81218e63e48deb) )/*banked at 0x4000 (select=3)*/
ROM_REGION( 0x00240, "proms", 0 )
ROM_LOAD( "sndprom.8b", 0x0000, 0x0020, CRC(d558af5a) SHA1(060556beeb1f6732c4520dcfb0086c428f7b9ce3) )
ROM_LOAD( "sndprom.9b", 0x0020, 0x0020, CRC(0390d748) SHA1(df0f750c1df45cc7bfb9dbabfa2b94563d19172a) )
ROM_LOAD( "sndprom.8g", 0x0040, 0x0100, CRC(19680615) SHA1(c309eb83e66b202bae9174dc2ffce231fca40644) )
ROM_LOAD( "sndprom.9g", 0x0140, 0x0100, CRC(f8c2c85b) SHA1(d9514af5682a2c5dec5366dcbdf5c7f6ef9f5380) )
ROM_END
ROM_START( greatgun )
ROM_REGION( 0x10000, "main", 0 ) /* 64k for main CPU (ZPU board) */
ROM_LOAD( "zpu0",0x0000, 0x2000, CRC(80cf2cbf) SHA1(ea24b844ea6d8fc54adb2e28be68e1f3e1184b8b) )
ROM_LOAD( "zpu1",0x2000, 0x2000, CRC(fc12af94) SHA1(65f5bca2853271c232bd02dfc3467e6a4f7f0a6f) )
ROM_LOAD( "zpu2",0x4000, 0x2000, CRC(b34cfa26) SHA1(903adc6de0d34e5bc8fb0f8d3e74ff53204d8c68) )
ROM_LOAD( "zpu3",0x6000, 0x2000, CRC(c142ebdf) SHA1(0b87740d26b19a05f65b811225ee0053ddb27d22) )
ROM_REGION( 0x10000, "sub", 0 ) /* 64k for sound CPU (PSB board) */
ROM_LOAD( "psba4",0x0000, 0x2000, CRC(172a793e) SHA1(3618a778af1f4a6267bf7e0786529be731ac9b76) )
ROM_REGION( 0x38000, "sub2", 0 ) /* 64k for video CPU (CFB board) */
ROM_LOAD( "cfb0",0x0000, 0x2000, CRC(ee372b1f) SHA1(b630fd659d59eb8c2540f18d91ae0d72e859fc4f) )
ROM_LOAD( "cfb1",0x2000, 0x2000, CRC(b76d9527) SHA1(8f16b850bd67d553aaaf7e176754e36aba581445) )
ROM_LOAD( "psb00",0x10000,0x2000, CRC(b4956100) SHA1(98baf5c27c76dc5c4eafc44f42705239504637fe) )/*banked at 0x4000*/
ROM_LOAD( "psb01",0x12000,0x2000, CRC(acdce2ee) SHA1(96b8961afbd0006b10cfdc825aefe27ec18121ff) )
ROM_LOAD( "psb02",0x14000,0x2000, CRC(cb840fc6) SHA1(c30c72d355e1957f3715e9fab701f65b9d7d632a) )
ROM_LOAD( "psb03",0x16000,0x2000, CRC(86ea6f99) SHA1(ce5d42557d0a62eebe3d0cee28587d60707573e4) )
ROM_LOAD( "psb04",0x18000,0x2000, CRC(65379893) SHA1(84bb755e23d5ce13b1c82e59f24f3890c50697cc) )
ROM_LOAD( "psb05",0x1a000,0x2000, CRC(f82245cb) SHA1(fa1cab94a03ce7b8e45ea6eec572b21f268f7547) )
ROM_LOAD( "psb06",0x1c000,0x2000, CRC(6b86794f) SHA1(72cf67ecf5a9198ecb44dd846de968e6cdd6458d) )
ROM_LOAD( "psb07",0x1e000,0x2000, CRC(60a7abf3) SHA1(44b932d8af29ec706c29d6b71a8bac6318d92315) )
ROM_LOAD( "psb08",0x20000,0x2000, CRC(854be14e) SHA1(ae9b1fe2443c87bb4334bc776f7bc7e5fa874f38) )
ROM_LOAD( "psb09",0x22000,0x2000, CRC(b2e8afa3) SHA1(30a3d83bf1ec7885549b47f9569e9ae0d05b948d) )
ROM_LOAD( "psb10",0x24000,0x2000, CRC(fbfb0aab) SHA1(2eb666a5eff31019b4ffdfc82e242ff47cd59527) )
ROM_LOAD( "psb11",0x26000,0x2000, CRC(ddcd3cec) SHA1(7d0c3b4160b11ebe9b097664190d8ae605413baa) )
ROM_LOAD( "psb12",0x28000,0x2000, CRC(c6617377) SHA1(29a6fc52e06c41f06ee333aad707c3a1952dff4d) )
ROM_LOAD( "psb13",0x2a000,0x2000, CRC(aeab8555) SHA1(c398cac5210022e3c9e25a9f2ef1017b27c21e62) )
ROM_LOAD( "psb14",0x2c000,0x2000, CRC(ef35e314) SHA1(2e20517ff89b153fd888cf4eb0404a802e16b1b7) )
ROM_LOAD( "psb15",0x2e000,0x2000, CRC(1fafe83d) SHA1(d1d406275f50d87547aabe1295795099f341433d) )
ROM_LOAD( "psb16",0x30000,0x2000, CRC(ec49864f) SHA1(7a3b295972b52682406f75c4fe12c29632452491) )
ROM_LOAD( "psb17",0x32000,0x2000, CRC(d9778e85) SHA1(2998f0a08cdba8a75e687a54cb9a03edeb4b22cd) )
ROM_LOAD( "psb18",0x34000,0x2000, CRC(ef61b6c0) SHA1(7e8a82beefb9fd8e219fc4d7d25a3a43ab8aadf7) )
ROM_LOAD( "psb19",0x36000,0x2000, CRC(68752e0d) SHA1(58a4921e4f774af5e1ef7af67f06e9b43643ffab) )
ROM_END
GAME( 1983, mazerbla, 0, mazerbla, mazerbla, 0, ROT0, "Stern", "Mazer Blazer (set 1)", GAME_IMPERFECT_GRAPHICS |GAME_NO_SOUND | GAME_NOT_WORKING )
GAME( 1983, mzrblzra, mazerbla, mazerbla, mazerbla, 0, ROT0, "Stern", "Mazer Blazer (set 2)", GAME_IMPERFECT_GRAPHICS |GAME_NO_SOUND | GAME_NOT_WORKING )
GAME( 1983, greatgun, 0, greatgun, greatgun, 0, ROT0, "Stern", "Great Guns", GAME_IMPERFECT_GRAPHICS )