ASIC coming soon for X-series algorithm coins!! This would also include Quark algorithm coin!
ASIC for X11, X13, X15 is very easy since they are a linear sequence of calculations, so regardless if 11, 13 or 15 rounds they always happen in the same sequence.
Quark algo has random hashing rounds so it is much harder to make an ASIC, not impossible but it would be much much more difficult than the X series algos so I do not believe it woud be included on ASIC hardware designed for X series. I'll believe it when I see it.
There is two type of design, modula or hardwire. I think, modula design will be better for the flexibility.
And, even in hardwire structure, Quark algo can be processed as whole types of algorithm. And just select the valid data in end stages. Such as
A - (B or C) - D
ASIC can designed to thru A - B (v) C (v) D
And, (v) will decide to use the pre-processed data or post-post processed data
But, to support multiple algorothim,
They designed common input matrix mux and output maxtrix mux with feed back bus,
And, control the mux and path using small logic
I think, not much complex,
just some algo has requipred too many gates that is only issues