summaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
author David Haywood <mamehaze@users.noreply.github.com>2015-07-28 23:59:58 +0100
committer David Haywood <mamehaze@users.noreply.github.com>2015-07-28 23:59:58 +0100
commitb5eb22a4c0297395e15777a7d8bf9369b126ff20 (patch)
tree8a088c4590658c6ba5e75285f5677311a2874e12
parentcd48bec24b29fbaa8fd727e35b6d1b41c473f526 (diff)
parent011917270009070fc1f1c0f2784cecd3b848d342 (diff)
Merge pull request #270 from mixxmaster/MXgal
galaxia.c: add technical manual and schematics links to notes, corrected speed (nw)
-rw-r--r--src/mame/drivers/galaxia.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/src/mame/drivers/galaxia.c b/src/mame/drivers/galaxia.c
index 3f6c4e1983a..59cdd943817 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 named 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 +50,18 @@ 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
*/
@@ -286,7 +290,7 @@ static MACHINE_CONFIG_START( galaxia, galaxia_state )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_ALWAYS_UPDATE)
- MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
MCFG_SCREEN_SIZE(256, 256)
MCFG_SCREEN_VISIBLE_AREA(0*8, 30*8-1, 2*8, 32*8-1)
@@ -331,7 +335,7 @@ static MACHINE_CONFIG_START( astrowar, galaxia_state )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_ALWAYS_UPDATE)
- MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
MCFG_SCREEN_SIZE(256, 256)
MCFG_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 2*8, 32*8-1)
@@ -463,7 +467,6 @@ 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 )