I get asked often to provide eproms to convert one version of SF2 to another version of SF2
(World Warrior, Champion Edition, Hyperfighting, Accelerated, etc... ),
and it's never a clear cut rom-only upgrade (rom 21, 22, 23 ) ..
There are so many versions, and bootlegs & hacks, and board combinations,
that it's always hit-and-miss as to which conversions will work, and which won't.
So I'm looking to the Capcom Guru's to share their knowledge on the topic.
ie. which conversions work as direct roms swap, and which need extra PALs and
security chips to work.
I don't need all the gory details of date revisions (ie. USA 910206 vs. USA 910214),
but regional differences would be useful (ie. USA roms are usually 4Mb, but Japanese roms
are sometimes 1Mb ).
I will share what I "think" I know, but please correct any erroneous statement.
---
I believe there were 3 "official" Capcom versions:
World Warrior
Champion Edition
Turbo: Hyper Fighting
All other versions, are hacks or bootlegs derived from one of these 3 Capcom SF2 "streams"
The basic version is SF2 :
World Warrior MAME file = SF2U (Capcom Rom stickers S92-E)
SF2 Champ Edition was an upgrade that required different PAL chips and other mods.
It is NOT a directly 3-eprom swap.
[ ie. what are they ? What do I need to go from SF2-WW to SF2-CE ? ]
MAME file = SF2CEU (Capcom Rom stickers ?)
From the SF2-CE are a few direct eprom upgrades (.... please confirm)
Rainbow (MAME file = SF2RB)
RedWave (MAME file = SF2RED)
HyperFighting (Turbo) was a CAPCOM upgrade to Champ Ed.
(MAME File = SF2HF2 ) (Capcom Rom stickers S2TU )
I don't know if this is a direct 3-eprom swap from Champ Edition,
or if other chips (or boards) are needed.
--
Also thrown into the mix is an SF2 Accelerated Pt.2 hack/bootleg
which would "seem" to run off the Champ Ed version,
... but it does not.
I found this page
http://www.arcade-museum.com/library/tech/vidchip.txt
which seems to indicate needing different PALs:
Street Fighter 2CE Acce
27C220 21 A5E8 Rom 21-C Accelerator requires PAL
27C4096 22 AF19 Rom 22-C Accelerator requires PAL
27C4096 23 5A5C Rom 23 Accelerator requires PAL
---
So....
Complicated enough for 'ya ??? ;-)
If anyone can shed any light on this, or has any website with info,
I would be most grateful.
Thanks,
Steph
(World Warrior, Champion Edition, Hyperfighting, Accelerated, etc... ),
and it's never a clear cut rom-only upgrade (rom 21, 22, 23 ) ..
There are so many versions, and bootlegs & hacks, and board combinations,
that it's always hit-and-miss as to which conversions will work, and which won't.
So I'm looking to the Capcom Guru's to share their knowledge on the topic.
ie. which conversions work as direct roms swap, and which need extra PALs and
security chips to work.
I don't need all the gory details of date revisions (ie. USA 910206 vs. USA 910214),
but regional differences would be useful (ie. USA roms are usually 4Mb, but Japanese roms
are sometimes 1Mb ).
I will share what I "think" I know, but please correct any erroneous statement.
---
I believe there were 3 "official" Capcom versions:
World Warrior
Champion Edition
Turbo: Hyper Fighting
All other versions, are hacks or bootlegs derived from one of these 3 Capcom SF2 "streams"
The basic version is SF2 :
World Warrior MAME file = SF2U (Capcom Rom stickers S92-E)
SF2 Champ Edition was an upgrade that required different PAL chips and other mods.
It is NOT a directly 3-eprom swap.
[ ie. what are they ? What do I need to go from SF2-WW to SF2-CE ? ]
MAME file = SF2CEU (Capcom Rom stickers ?)
From the SF2-CE are a few direct eprom upgrades (.... please confirm)
Rainbow (MAME file = SF2RB)
RedWave (MAME file = SF2RED)
HyperFighting (Turbo) was a CAPCOM upgrade to Champ Ed.
(MAME File = SF2HF2 ) (Capcom Rom stickers S2TU )
I don't know if this is a direct 3-eprom swap from Champ Edition,
or if other chips (or boards) are needed.
--
Also thrown into the mix is an SF2 Accelerated Pt.2 hack/bootleg
which would "seem" to run off the Champ Ed version,
... but it does not.
I found this page
http://www.arcade-museum.com/library/tech/vidchip.txt
which seems to indicate needing different PALs:
Street Fighter 2CE Acce
27C220 21 A5E8 Rom 21-C Accelerator requires PAL
27C4096 22 AF19 Rom 22-C Accelerator requires PAL
27C4096 23 5A5C Rom 23 Accelerator requires PAL
---
So....
Complicated enough for 'ya ??? ;-)
If anyone can shed any light on this, or has any website with info,
I would be most grateful.
Thanks,
Steph


