From 1ab1191c508dd5dfa0161347a5d7b2da6e5536f6 Mon Sep 17 00:00:00 2001 From: mamehaze Date: Thu, 13 Nov 2014 21:27:35 +0000 Subject: alinvade wip (nw) --- src/mame/drivers/alinvade.c | 39 ++++++++++++++++++++++++++++++++------- 1 file changed, 32 insertions(+), 7 deletions(-) diff --git a/src/mame/drivers/alinvade.c b/src/mame/drivers/alinvade.c index 9e575f135b2..513d48d0b57 100644 --- a/src/mame/drivers/alinvade.c +++ b/src/mame/drivers/alinvade.c @@ -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 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 ) -- cgit v1.2.3