> Why not use a double on machines which support a double in hardware?
Because the kernel shouldn't use the FPU. As Richard B. Johnson recently
wrote (in <Pine.LNX.3.95.980721140752.322A-100000@chaos.analogic.com>):
} The state of the FP unit is undefined when the kernel executes.
} Further, a FP fault can create a double fault when the FP fault occurs
} within the kernel.
-- Aaron M. Ucko, KB1CJC <amu@mit.edu> (finger amu@monk.mit.edu)- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html