/*
Gunpey
Banpresto, 2000
The hardware looks very Raizing/8ing -ish, especially the ROM stickers and PCB silk-screening
which are identical to those on Brave Blade and Battle Bakraid ;-)
PCB Layout
----------
VG-10
|-------------------------------------|
| M6295 ROM5 |
| YMZ280B-F ROM4 ROM3 |
| YAC516 16.93MHz |
| 61256 ROM1 |
| 61256 ROM2 |
|J |
|A PAL XILINX |
|M XC95108 |
|M 57.2424MHz |
|A V30 |
| |
| |-------| |
| |AXELL | |
| DSW1 |AG-1 | |
| DSW2 |AX51101| T2316162 |
| |-------| T2316162 |
|-------------------------------------|
Notes:
V30 clock: 14.3106MHz (= 57.2424 / 4)
YMZ280B clock: 16.93MHz
OKI M6295 clock: 2.11625MHz (= 16.93 / 8), sample rate = clock / 165
VSync: 60Hz
HSync: 15.79kHz
ROMs:
GP_ROM1.021 \
GP_ROM2.022 / 27C040, Main program
GP_ROM3.025 \
GP_ROM4.525 / SOP44 32M MASK, Graphics
GP_ROM5.622 SOP44 32M MASK, OKI samples
*/
#include "driver.h"
static UINT16 *unkram;
static UINT16 *mainram;
static VIDEO_START( gunpey )
{
}
static VIDEO_UPDATE( gunpey )
{
return 0;
}
static WRITE16_HANDLER(unk_w)
{
COMBINE_DATA(&unkram[offset]);
}
static READ16_HANDLER(unk_r)
{
// c9 = status ? //40 10 04=start ?
// 40,41,44 = ?
// 4a = flags?
if(offset==0xc9/2 )//|| offset==0x40 || offset==0x41 || offset==0x44)
return mame_rand(machine);
return unkram[offset];
}
static WRITE16_HANDLER(main_w)
{
COMBINE_DATA(&mainram[offset]);
}
static READ16_HANDLER(main_r)
{
if(offset>0x502d/2 && offset<0x56c0/2)
logerror("R %x @%x\n",offset*2,activecpu_get_pc());
return mainram[offset];
}
/***************************************************************************************/
static ADDRESS_MAP_START( mem_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x00000, 0x0ffff) AM_READWRITE(main_r, main_w) AM_BASE(&mainram)
AM_RANGE(0x50000, 0x500ff) AM_RAM AM_BASE(&unkram)
AM_RANGE(0x50100, 0x502ff) AM_NOP
AM_RANGE(0x80000, 0xfffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( io_map, ADDRESS_SPACE_IO, 16 )
AM_RANGE(0x7f00, 0x7fff) AM_READWRITE(unk_r, unk_w)
ADDRESS_MAP_END
/***************************************************************************************/
/***************************************************************************************/
static INTERRUPT_GEN( gunpey_interrupt )
{
cpunum_set_input_line_and_vector(machine, 0,0,HOLD_LINE,0x200/4);
}
/***************************************************************************************/
static MACHINE_DRIVER_START( gunpey )
/* basic machine hardware */
MDRV_CPU_ADD("main", V30, 57242400 / 4)
MDRV_CPU_PROGRAM_MAP(mem_map,0)
MDRV_CPU_IO_MAP(io_map,0)
MDRV_CPU_VBLANK_INT("main", gunpey_interrupt)
/* video hardware */
MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(32*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
MDRV_PALETTE_LENGTH(0x800)
MDRV_VIDEO_START(gunpey)
MDRV_VIDEO_UPDATE(gunpey)
MACHINE_DRIVER_END
/***************************************************************************************/
static INPUT_PORTS_START( gunpey )
INPUT_PORTS_END
/***************************************************************************************/
ROM_START( gunpey )
ROM_REGION( 0x100000, "main", 0 ) /* V30 code */
ROM_LOAD16_BYTE( "gp_rom1.021", 0x00000, 0x80000, CRC(07a589a7) SHA1(06c4140ffd5f74b3d3ddfc424f43fcd08d903490) )
ROM_LOAD16_BYTE( "gp_rom2.022", 0x00001, 0x80000, CRC(f66bc4cf) SHA1(54931d878d228c535b9e2bf22a0a3e41756f0fe5) )
ROM_REGION( 0x400000*2, "gfx1", 0 )
ROM_LOAD( "gp_rom3.025", 0x00000, 0x400000, CRC(f2d1f9f0) SHA1(0d20301fd33892074508b9d127456eae80cc3a1c) )
ROM_LOAD( "gp_rom4.525", 0x400000, 0x400000, CRC(78dd1521) SHA1(91d2046c60e3db348f29f776def02e3ef889f2c1) )
ROM_REGION( 0x400000, "unknown", 0 )
ROM_LOAD( "gp_rom5.622", 0x00000, 0x400000, CRC(f79903e0) SHA1(4fd50b4138e64a48ec1504eb8cd172a229e0e965))
ROM_END
GAME( 2000, gunpey, 0, gunpey, gunpey, 0, ROT0, "Banpresto", "Gunpey",GAME_NO_SOUND|GAME_NOT_WORKING)