/* Hot Blocks */
/*
driver by David Haywood
*/
/*
HotBlock board
Tetris with naughty bits
||||||||||||||||
+-------++++++++++++++++-------+
| |
| YM2149 TESTSW |
| |
| 62256 62256 6116 6116 |
| |
| 24mhz TPC1020AFN 24c04a |
| |
| PAL |
| P8088-1 IC4 IC5 62256 62256 |
| |
+------------------------------+
330ohm resistor packs for colours
--
there are a variety of test modes which can be obtained
by resetting while holding down player 2 buttons
eeprom / backup data not hooked up ( 24c04a on port4 )
most sources say this is a game by Nics but I believe Nics
to be a company from Korea, this game is quite clearly a
Spanish game, we know for a fact that NIX are from Spain
so it could be by them instead
*/
#include "emu.h"
#include "cpu/i86/i86.h"
#include "sound/ay8910.h"
class hotblock_state : public driver_device
{
public:
hotblock_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
/* memory pointers */
UINT8 * m_vram;
/* misc */
int m_port0;
int m_port4;
/* memory */
UINT8 m_pal[0x10000];
};
static READ8_HANDLER( hotblock_video_read )
{
hotblock_state *state = space->machine().driver_data<hotblock_state>();
/* right?, anything else?? */
if (state->m_port0 & 0x20) // port 0 = a8 e8 -- palette
{
return state->m_pal[offset];
}
else // port 0 = 88 c8
{
return state->m_vram[offset];
}
}
/* port 4 is some kind of eeprom / storage .. used to store the scores */
static READ8_HANDLER( hotblock_port4_r )
{
// mame_printf_debug("port4_r\n");
return 0x00;
}
static WRITE8_HANDLER( hotblock_port4_w )
{
// mame_printf_debug("port4_w: pc = %06x : data %04x\n", cpu_get_pc(&space->device()), data);
// popmessage("port4_w: pc = %06x : data %04x", cpu_get_pc(&space->device()), data);
hotblock_state *state = space->machine().driver_data<hotblock_state>();
state->m_port4 = data;
}
static WRITE8_HANDLER( hotblock_port0_w )
{
// popmessage("port4_w: pc = %06x : data %04x", cpu_get_pc(&space->device()), data);
hotblock_state *state = space->machine().driver_data<hotblock_state>();
state->m_port0 = data;
}
static WRITE8_HANDLER( hotblock_video_write )
{
hotblock_state *state = space->machine().driver_data<hotblock_state>();
/* right?, anything else?? */
if (state->m_port0 & 0x20) // port 0 = a8 e8 -- palette
{
state->m_pal[offset] = data;
}
else // port 0 = 88 c8
{
state->m_vram[offset] = data;
}
}
static ADDRESS_MAP_START( hotblock_map, AS_PROGRAM, 8 )
AM_RANGE(0x00000, 0x0ffff) AM_RAM
AM_RANGE(0x10000, 0x1ffff) AM_READWRITE(hotblock_video_read, hotblock_video_write) AM_BASE_MEMBER(hotblock_state, m_vram)
AM_RANGE(0x20000, 0xfffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( hotblock_io, AS_IO, 8 )
AM_RANGE(0x0000, 0x0000) AM_WRITE(hotblock_port0_w)
AM_RANGE(0x0004, 0x0004) AM_READWRITE(hotblock_port4_r, hotblock_port4_w)
AM_RANGE(0x8000, 0x8001) AM_DEVWRITE("aysnd", ay8910_address_data_w)
AM_RANGE(0x8001, 0x8001) AM_DEVREAD("aysnd", ay8910_r)
ADDRESS_MAP_END
static VIDEO_START(hotblock)
{
hotblock_state *state = machine.driver_data<hotblock_state>();
state->save_item(NAME(state->m_pal));
}
static SCREEN_UPDATE(hotblock)
{
hotblock_state *state = screen->machine().driver_data<hotblock_state>();
int y, x, count;
int i;
static const int xxx = 320, yyy = 204;
bitmap_fill(bitmap, 0, get_black_pen(screen->machine()));
for (i = 0; i < 256; i++)
{
int dat = (state->m_pal[i * 2 + 1] << 8) | state->m_pal[i * 2];
palette_set_color_rgb(screen->machine(), i, pal5bit(dat >> 0), pal5bit(dat >> 5), pal5bit(dat >> 10));
}
count = 0;
for (y = 0; y < yyy; y++)
{
for(x = 0; x < xxx; x++)
{
if (state->m_port0 & 0x40)
*BITMAP_ADDR16(bitmap, y, x) = state->m_vram[count];
count++;
}
}
return 0;
}
static INPUT_PORTS_START( hotblock )
PORT_START("P1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1) PORT_8WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1) PORT_8WAY
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1) PORT_8WAY
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1) PORT_8WAY
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) // unused?
PORT_START("P2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2) PORT_8WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2) PORT_8WAY
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2) PORT_8WAY
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2) PORT_8WAY
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) // used to get test mode
INPUT_PORTS_END
static INTERRUPT_GEN( hotblocks_irq ) /* right? */
{
device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
}
static const ay8910_interface ay8910_config =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
DEVCB_INPUT_PORT("P1"),
DEVCB_INPUT_PORT("P2"),
DEVCB_NULL,
DEVCB_NULL
};
static MACHINE_CONFIG_START( hotblock, hotblock_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8088, 10000000)
MCFG_CPU_PROGRAM_MAP(hotblock_map)
MCFG_CPU_IO_MAP(hotblock_io)
MCFG_CPU_VBLANK_INT("screen", hotblocks_irq)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_SIZE(1024,1024)
MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 0, 200-1)
MCFG_SCREEN_UPDATE(hotblock)
MCFG_PALETTE_LENGTH(256)
MCFG_VIDEO_START(hotblock)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("aysnd", AY8910, 1000000)
MCFG_SOUND_CONFIG(ay8910_config)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_CONFIG_END
ROM_START( hotblock )
ROM_REGION( 0x100000, "maincpu", 0 )
ROM_LOAD( "hotblk5.ic4", 0x000000, 0x080000, CRC(5f90f776) SHA1(5ca74714a7d264b4fafaad07dc11e57308828d30) )
ROM_LOAD( "hotblk6.ic5", 0x080000, 0x080000, CRC(3176d231) SHA1(ac22fd0e9820c6714f51a3d8315eb5d43ef91eeb) )
ROM_END
GAME( 1993, hotblock, 0, hotblock, hotblock, 0, ROT0, "NIX?", "Hot Blocks - Tetrix II", 0 )