On 03 Mar 2014, at 17:43, Ewald wrote: > > On 03 Mar 2014, at 12:49, Hans-Peter Diettrich wrote: > >> What you observed was related to the argument passed to WriteLn. When >> WriteLn includes code to output a QWord, then the output should reflect the >> bitpattern (unsigned number). The output of an Extended value reflects the >> value converted from integral to floating point, and that conversion assumes >> signed values. IIRC the x87 FPU doesn't have an instruction to load unsigned >> integral values, so that no compiler has a chance to make it load an >> unsigned value. > > Alright, that I did not know. Thanks for the info. I always assumed there was > an instruction FULD, but it isn't there apparently.
Nevertheless, Hans-Peter's statement is wrong. FPC can perfectly convert any qword value into an extended value. It's not because something cannot be done using a single instruction, that it cannot be done at all. Jonas _______________________________________________ fpc-devel maillist - [email protected] http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
