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works well enough to mark it as working (nw)

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This commit is contained in:
mamehaze 2015-03-23 14:11:24 +00:00
parent d1e1dda76d
commit 1aca10780c
1 changed files with 20 additions and 8 deletions
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28
src/mame/drivers/twins.c
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@ -39,17 +39,18 @@ video is not banked in this case instead palette data is sent to the ports
strange palette format.
todo:
hook up eeprom
takes a long time to boot (eeprom?)
hook up eeprom (doesn't seem to work when hooked up??)
Twins set 1 takes a long time to boot (eeprom?)
Improve blitter / clear logic for Spider.
Electronic Devices was printed on rom labels
1994 date string is in ROM
Spider seems to have some kind of sprites / blitter that works the same as as Table Tennis Champ (ttchamp.c)
Spider must also have some ROM banking, or the blitter must be able to access non-cpu visible space, the title logo is at 0x00000 in ROM
Spider PCB appears almost identical but uses additional 'blitter' features.
It is possible the Twins PCB has them too and doesn't use them.
Twins (set 2) is significantly changed hardware.
Twins (set 2) is significantly changed hardware, uses a regular RAMDAC hookup for plaette etc.
*/
@ -281,9 +282,19 @@ ADDRESS_MAP_END
VIDEO_START_MEMBER(twins_state,twins)
{
save_item(NAME(m_paloff));
m_paloff = 0;
save_item(NAME(m_spritesinit));
save_item(NAME(m_spriteswidth));
save_item(NAME(m_spritesaddr));
save_item(NAME(m_mainram));
save_item(NAME(m_videoram));
save_item(NAME(m_videoram2));
save_item(NAME(m_videorambank));
}
UINT32 twins_state::screen_update_twins(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int y,x,count;
@ -401,6 +412,7 @@ VIDEO_START_MEMBER(twins_state,twinsa)
}
static ADDRESS_MAP_START( twinsa_io, AS_IO, 16, twins_state )
AM_RANGE(0x0000, 0x0001) AM_DEVWRITE8("ramdac",ramdac_device,index_w,0x00ff)
AM_RANGE(0x0002, 0x0003) AM_DEVWRITE8("ramdac",ramdac_device,mask_w,0x00ff)
@ -616,4 +628,4 @@ ROM_END
GAME( 1994, twins, 0, twins, twins, driver_device, 0, ROT0, "Electronic Devices", "Twins (set 1)", GAME_SUPPORTS_SAVE )
GAME( 1994, twinsa, twins, twinsa, twins, driver_device, 0, ROT0, "Electronic Devices", "Twins (set 2)", GAME_SUPPORTS_SAVE )
GAME( 1994, spider, 0, spider, twins, driver_device, 0, ROT0, "Buena Vision", "Spider", GAME_NOT_WORKING )
GAME( 1994, spider, 0, spider, twins, driver_device, 0, ROT0, "Buena Vision", "Spider", GAME_IMPERFECT_GRAPHICS )