On Friday 01 June 2001 20:21, you wrote:
> The English translation is available on The MSX Games Box (
> http://www.msxgamesbox.com )
>From the interview:
===
After one year of 'counter-cracking', Konami sales were gearing up et piracy
was decreasing at the times games like Nemesis 2, Salamander, King's Valley
2, Nemesis 3, F1 Spirit were about to come out.
===
I wasn't aware of any copy protections in those games. The large size (128K
or more) made cracking difficult ofcourse, but that's a side effect of larger
games, not a protection mechanism. I never cracked those games, but I don't
know of any MegaROMs having copy protection measures.
===
In the case of a S.C.C. cartridge, a part of the hooks table reserved for
routing sounds to PSG is replaced by instructions to redirect the sounds to
the S.C.C. microchip located in one of the cartridge ports. A simple "POKE &
Hxxxx,y" redirects the instructions.
===
This is new to me. Can anyone confirm or deny it?
===
Mars Up-One: If I am not wrong, the S.C.C. chip is not only a sound processor
but also a memory mapper which handles the 16Kb blocs of the game ... what
are the interactions with the memory mapper used on high-end MSX2 machines?
===
The SCC IC contains a mapper of 8K blocks, it is not related to the main RAM
memory mapper. Details about this and other MegaROM mappers can be found on
Sean Young's pages:
http://www.msxnet.org/tech/megaroms.html
Bye,
Maarten
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