On 10/24/2013 09:26 AM, Tom Musta wrote: > Because of the Power ISA definitions of maximum and minimum > on various boundary cases, the standard softfloat comparison > routines (e.g. float64_lt) do not work as well as one might > think. Therefore specific routines for comparing 64 and 32 > bit floating point numbers are implemented in the PowerPC > helper code.
Really? All I see in the document is ">fp", used both here in the minmax insn and in the cmp insn. If the softfloat compare isn't good enough for minmax, how can it be good enough for cmp? r~
