On 28 May 2014 19:10, Regan, Brian (EPC COE) wrote: > (Note, at address 18000e4, objdump did not decode the SPE instruction correctly. The opcode is the single precision less than in the ppc SPE extension.) The C standard doesn't say anything about which opcodes an expression must be compiled to. Doesn't the single precision one give the same result for 100.f < 200.f as you would get for 100. < 200. ? If so, there is no "deviation" from the standard.