diff options
| author | 2015-07-26 03:43:55 -0400 | |
|---|---|---|
| committer | 2015-07-26 03:43:55 -0400 | |
| commit | 44bf25dfd868ca0fd0de0e2015911dca015584ec (patch) | |
| tree | 6ecc7c8946fd1ba3a2c84b3496e5d33d0494f2e0 /src | |
| parent | 1fe0604ea62b2a78427425ccae44aa0d9a3211ec (diff) | |
galaxia.c: more notes
Diffstat (limited to 'src')
| -rw-r--r-- | src/mame/drivers/galaxia.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/src/mame/drivers/galaxia.c b/src/mame/drivers/galaxia.c index 3f6c4e1983a..b74a0f0f5bf 100644 --- a/src/mame/drivers/galaxia.c +++ b/src/mame/drivers/galaxia.c @@ -3,6 +3,8 @@ /* Galaxia by Zaccaria (1979) +Also released in several regions as "Super Galaxians". +Set regions are unknown, so all are currently Galaxia. Taken from an untested board. @@ -11,7 +13,7 @@ Taken from an untested board. This is not a direct pirate of Galaxian as you might think from the name. The game uses a Signetics 2650A CPU with three 40-pin 2636 chips, which are -responsible for sound and some video functions. +responsible for basic sound and some video functions. Other than that, the video hardware looks like it's similar to Galaxian (2 x 2114, 2 x 2101, 2 x EPROM) but there is no attack RAM and the graphics @@ -48,16 +50,22 @@ Quick PCB sketch: Astro Wars (port of Astro Fighter) is on a stripped down board of Galaxia, using only one 2636 chip, less RAM, and no PROM. ---- +Manual and Schematic for Galaxia can be found at: +http://www.zzzaccaria.com/manuals/SuperGalaxiansTechnicalManual.zip +http://www.zzzaccaria.com/manuals/GalaxiaSchematics.zip -HW has many similarities with quasar.c / cvs.c / zac2650.c +--- TODO: -- fix colors, there's no color prom?! -- stars background should be multi color -- improve sound, maybe part discrete +- correct color/star generation using info from Galaxia technical manual and schematics +- add sound board emulation - improve bullets -- accurate astrowar sprite/bg sync +- accurate sprite/bg sync in astrowar + +NOTE: Are there unemulated waitstates? On real hardware, the speed of both +Astrowars and Galaxia are a bit slower, as seen in these videos: +https://www.youtube.com/watch?v=xHBrZJxIfzI +https://www.youtube.com/watch?v=eSrQFBMeDlM */ @@ -463,7 +471,6 @@ ROM_START( astrowar ) ROM_LOAD( "astro.3d", 0x00400, 0x0400, CRC(822505aa) SHA1(f9d3465e14bb850a286f8b4f42aa0a4044413b67) ) ROM_END - GAME( 1979, galaxia, 0, galaxia, galaxia, driver_device, 0, ROT90, "Zaccaria / Zelco", "Galaxia (set 1)", GAME_IMPERFECT_COLORS | GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS ) GAME( 1979, galaxiaa, galaxia, galaxia, galaxia, driver_device, 0, ROT90, "Zaccaria / Zelco", "Galaxia (set 2)", GAME_IMPERFECT_COLORS | GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS ) GAME( 1979, galaxiab, galaxia, galaxia, galaxia, driver_device, 0, ROT90, "Zaccaria / Zelco", "Galaxia (set 3)", GAME_IMPERFECT_COLORS | GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS ) |
