bearophile wrote: > Don: >> To get the full benefit from SSE we need to use SSE registers for >> parameter passing, but I think that'll only be possible with the 64 bit API. > > Can you explain me this a bit better? Why can't D use SSE registers in 32 bit code too? > > Bye, > bearophile It can, but not in the ABI. So support in 64-bit can be better.