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RE: Processor-specific code
>>>>> "Dave" == Dave Korn <email@example.com> writes:
Dave> Doesn't the C language spec require the mode to be switchable
Dave> at runtime?
Dave> In any case, the ARM or Alpha isn't prevented from working in
Dave> such a fashion just because the rounding mode is encoded in the
Dave> instruction; it just means that fp primitives have to be
Dave> compiled as intrinsics that test whatever flag controls the
Dave> rounding mode and then branch to an fp insn of the appropriate
That only works if the notion of switchable rounding mode exists. It
doesn't on VAX, PDP-11, PDP-10, ...