Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-24 17:30:55 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

alinvade wip (nw)

Browse Source
This commit is contained in:
mamehaze 2014-11-13 21:27:35 +00:00
parent cf80ff952d
commit 1ab1191c50
1 changed files with 32 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
src/mame/drivers/alinvade.c
View File

@ -14,9 +14,11 @@ class alinvade_state : public driver_device
{
public:
alinvade_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram")
{ }
required_shared_ptr<UINT8> m_videoram;
public:
virtual void machine_start();
@ -27,7 +29,9 @@ public:
static ADDRESS_MAP_START( alinvade_map, AS_PROGRAM, 8, alinvade_state )
AM_RANGE(0x0000, 0x0fff) AM_RAM
AM_RANGE(0x0000, 0x01ff) AM_RAM
AM_RANGE(0x0400, 0x0bff) AM_RAM AM_SHARE("videoram")
AM_RANGE(0xe000, 0xe3ff) AM_ROM
AM_RANGE(0xe800, 0xebff) AM_RAM
AM_RANGE(0xec00, 0xffff) AM_ROM
@ -51,6 +55,27 @@ void alinvade_state::machine_reset()
UINT32 alinvade_state::screen_update_alinvade(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
offs_t offs;
for (offs = 0; offs < m_videoram.bytes(); offs++)
{
int i;
UINT8 x = (offs << 3)&0x7f;
int y = (offs >> 4)&0x7f;
UINT8 data = m_videoram[offs];
for (i = 0; i < 8; i++)
{
pen_t pen = (data & 0x01) ? rgb_t::white : rgb_t::black;
bitmap.pix32(y, x) = pen;
data = data >> 1;
x = x + 1;
}
}
return 0;
}
@ -60,14 +85,14 @@ static MACHINE_CONFIG_START( alinvade, alinvade_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6502,2000000) /* ? MHz */
MCFG_CPU_PROGRAM_MAP(alinvade_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", alinvade_state, irq0_line_hold)
// MCFG_CPU_VBLANK_INT_DRIVER("screen", alinvade_state, irq0_line_hold)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(256, 256)
MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 16, 256-16-1)
MCFG_SCREEN_SIZE(128, 128)
MCFG_SCREEN_VISIBLE_AREA(0, 128-1, 0, 128-1)
MCFG_SCREEN_UPDATE_DRIVER(alinvade_state, screen_update_alinvade)
/* sound hardware */
@ -77,7 +102,7 @@ MACHINE_CONFIG_END
ROM_START( alinvade )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_REGION( 0x10000, "maincpu", 0 ) // todo, check mapping
ROM_LOAD( "alien28.708", 0xe000, 0x0400, CRC(de376295) SHA1(e8eddbb1be1f8661c6b5b39c0d78a65bded65db2) )
ROM_LOAD( "alien29.708", 0xec00, 0x0400, CRC(20212977) SHA1(9d24a6b403d968267079fa6241545bd5a01afebb) )
ROM_LOAD( "alien30.708", 0xf000, 0x0400, CRC(734b691c) SHA1(9e562159061eecf4b1dee4ea0ee4752c901a54aa) )
@ -87,4 +112,4 @@ ROM_START( alinvade )
ROM_END
GAME( 198?, alinvade, 0, alinvade, alinvade, driver_device, 0, ROT0, "Forbes?", "Alien Invaders", GAME_NOT_WORKING )
GAME( 198?, alinvade, 0, alinvade, alinvade, driver_device, 0, ROT90, "Forbes?", "Alien Invaders", GAME_NOT_WORKING )