SCC don´t work in SCC Games.

Expert (104)

13-02-2014, 21:10

Hello.

When I use the game "Nemesis 2" or "Penguin Adventure" with SCC+, in OpenMSX, don´t have SCC sound.
I activate '"scc" or "scc+" in extensions list, but no luck.
I tryed with Panasonic FS-A1GT and others machines and the result is the same.
In BlueMSX emulator, these games sound correctly.
Thank you.

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Par Manuel

Ascended (19320)

13-02-2014, 21:39

But those games do not support SCC or SCC+...

Par Hrothgar

Champion (479)

13-02-2014, 21:41

Nemesis 2 does.

Par luppie

Paladin (869)

13-02-2014, 21:43

I think that Nemesis 2 does support SCC.

I have the original with a switch in it. Probably the switch is for switching the PSG on/off

Par Manuel

Ascended (19320)

13-02-2014, 21:46

Uh, yeah, oops, I had Penguin Adventure in mind but Nemesis 2 works fine with SCC. YOu don't need to insert a separate extension, the game cartridge has the SCC built in (openMSX knows that). This only works if you run it as a ROM image, of course. Not a cracked disk version.

Par mars2000you

Enlighted (6442)

13-02-2014, 21:48

And no need to add a SCC to play Nemesis 2, the rom is defined with the KonamiSCC mapper, the emulators enable the SCC support with this kind of rom.

Par Paulo Volkova

Expert (104)

13-02-2014, 22:07

Manuel, I have a ROM version (128kb). How to detect if a ROM is a true SCC or not?
When playing the game in Panasonic FS-A1GT, in "Audio Controls" (OpenMSX) the sound out by PSG volume and the SCC+ don´t have any sound.

Par mars2000you

Enlighted (6442)

13-02-2014, 22:40

Which is the sha1 value of this rom ?

Most ROM versions of this game have the KonamiSCC mapper (see above), but there's one version with ASCII8 mapper :

Quote:

dump>
original value="false" />
megarom>
type>ASCII8
hash algo="sha1">fd7b23a4f1c2058b966b5ddd52cf7ae44a0eebb0
remark>
text>Needs SCC in slot 2
/remark>
/megarom>
/dump>

As indicated in the blueMSX database, you need to put a SCC cartridge in slot 2 (not in slot 1, occupied by the game rom).

Par Paulo Volkova

Expert (104)

13-02-2014, 22:57

Mars2000you.
The sha1 value is 1434386454c776800cba3805c4041b0105c2f71f.

Par mars2000you

Enlighted (6442)

13-02-2014, 23:07

This is not Nemesis 2, but a SCC+ version of Nemesis 1.

In blueMSX, it is directly supported as it is detected by the infos in the database.

Quote:

dump>
original value="false" />
sccpluscart>
boot>scc+
hash algo="sha1">1434386454c776800cba3805c4041b0105c2f71f
/sccpluscart>
/dump>

I don't know how it is supported in openMSX, maybe there's an error in the openMSX database.

Par Manuel

Ascended (19320)

13-02-2014, 23:10

openMSX doesn't support SCC+ ROM images, because this is not existing MSX hardware. See https://sourceforge.net/p/openmsx/feature-requests/214/