summaryrefslogtreecommitdiffstatshomepage
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/mame/drivers/8080bw.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/src/mame/drivers/8080bw.c b/src/mame/drivers/8080bw.c
index 712c7e97e6b..5c7e3a7e1ca 100644
--- a/src/mame/drivers/8080bw.c
+++ b/src/mame/drivers/8080bw.c
@@ -1,12 +1,14 @@
// license:MAME
-// copyright-holders:Michael Strutts,Nicola Salmoria,Tormod Tjaberg,Mirko Buffoni,Lee Taylor,Valerio Verrando,Marco Cassili,Zsolt Vasvari,Aaron Giles,Jonathan Gevaryahu,Andrew Welburn,hap,Robbbert,MISSING_OTHERS
+// copyright-holders:Michael Strutts,Nicola Salmoria,Tormod Tjaberg,Mirko Buffoni,Lee Taylor,Valerio Verrando,Marco Cassili,Zsolt Vasvari,Aaron Giles,Jonathan Gevaryahu,hap,Robbbert,MISSING_OTHERS
/*****************************************************************************
8080bw.c
Michael Strutts, Nicola Salmoria, Tormod Tjaberg, Mirko Buffoni
- Lee Taylor, Valerio Verrando, Marco Cassili, Zsolt Vasvari, Andy Welburn,
- and others
+ Lee Taylor, Valerio Verrando, Marco Cassili, Zsolt Vasvari, and others
+
+ Much information about Space Invaders PCBs and other Taito and Midway
+ sets and hardware contributed by Andrew Welburn
Notes:
@@ -49,7 +51,7 @@
- despite there being at least six versions of this pcb, the discrete
audio section is identical in all of them.
* Middle pcb: CPU/RAM/Color overlay pcb
- - has SRAMS on it
+ - has DRAMS on it
- has the 8080 CPU on it
- has the two PROMS for color overlay on it (one for each player flip)
(these are not populated on TVN pcbs and the related circuitry is not
@@ -83,9 +85,9 @@
* SVNxxxxx? (L-shaped pcbset) - B&W only, used on "Space Invaders" Upright
with 3-separate-sheets-of-gel 'strips' color overlay.
***TODO: this overlay might not be supported properly yet!
- Does not support flipscreen. (to save on component costs?)
+ Does not support flipscreen, was intended for upright cabinets only.
Audio PCB daughterboard has part number SVN00001 or SVN00003.
- Came from factory with one of the TV romsets ONLY?
+ Came from factory with one of the 6x 0x400 or 4x 0x800 romsets
Capable of running TV, SV or CV romsets.
This is probably the second-oldest pcb set and may have been made to
allow closer physical interchangability with Midway's m8080bw hardware,
@@ -106,8 +108,7 @@
Capable of running TV, SV, CV, UV or PV romsets.
* The following Romsets are known, ROUGHLY from oldest to newest:
- SV01, SV02, SV03, SV04, SV05, SV06 - undumped (rev 1), this would be the very first japan release of space invaders (Andy W may call this 'SV0'?)
- (SV01, SV02, SV08, SV04, SV07, SV06) - undumped, unknown if this version actually exists.
+ SV01, SV02, SV03, SV04, SV05, SV06 - undumped (rev 1), If this exists at all this would be the very first japan release of space invaders (Andy W may call this 'SV0'?)
SV01, SV02, SV10, SV04, SV09, SV06 - sisv2 (rev 2) (Andy W calls this 'SV1', and the midway 'invaders' set is based on this romset)
SV0H, SV02, SV10, SV04, SV09, SV06 - sisv3 (rev 3) (Andy W calls this 'SV2')
SV0H, SV11, SV12, SV04, SV13, SV14 - sisv (rev 4, 5-digit scoring) (Andy W calls this 'SV3') (this set is likely newer than the TV0x sets)
@@ -3395,7 +3396,7 @@ ROM_START( sicv ) // likely not the first sicv version...
ROM_LOAD( "cv02.2", 0x0400, 0x0400, CRC(8263da38) SHA1(2e7c769d129e6f8a1a31eba1e02777bb94ac32b2) )
ROM_END
-ROM_START( sisv1 ) // rev 1
+ROM_START( sisv1 ) // rev 1, this version may or may not really exist (may have been test/prototype only?)
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "sv01.36", 0x0000, 0x0400, CRC(d0c32d72) SHA1(b3bd950b1ba940fbeb5d95e55113ed8f4c311434) )
ROM_LOAD( "sv02.35", 0x0400, 0x0400, CRC(0e159534) SHA1(94b2015a9d38ca738705b8d024a79fd2f9855b98) )