X11 is rather straightforward, there are some caveats inside hash functions, but for well known hashes it would be just concatenation of published implementations.
For Quark algorithm one can implement 9 hashing stages, 3 of them will be paired - e.g. calculate Keccak and JH in parallel, then discard one of results. Or, to save die space, it's possible to implement 6 hashing cores and some dispatching and routing logic around them.
Can you comment:
With sufficient funding, how long would it take to roll out usable ASICs based on a multi algo concept?
Do you think you can hold up to AMD and nVidia? They are not gonna miss that boat for very much longer.
Not only for crypto hashing, but for any kind of a custom instruction set for scientific applications.
They are not sleeping on trees.
Would a well meant ASIC be able to keep up with a 3000 stream GPU doing a custom program?
The noise of my GPU cards just said: NO!