<div dir="ltr"><div><div>Hi,<br></div>it sounds like the Windows version of cog suffers from the infamous timesTwoPower: bug<br><br>See:<br><a href="https://groups.google.com/forum/#!topic/comp.lang.smalltalk.dolphin/8du7NWkH5zw">https://groups.google.com/forum/#!topic/comp.lang.smalltalk.dolphin/8du7NWkH5zw</a><br><a href="http://stackoverflow.com/questions/32150888/should-ldexp-round-correctly">http://stackoverflow.com/questions/32150888/should-ldexp-round-correctly</a><br><br>Virtual Machine<br>---------------<br>C:\Users\cellier\Documents\Smalltalk\Squeak\Spur\Squeak.exe<br>Croquet Closure Cog[Spur] VM [CoInterpreterPrimitives VMMaker.oscog-eem.1855]<br>Win32 built on May  2 2016 10:00:42 PDT Compiler: 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)<br>platform sources revision VM: r3692 <a href="http://www.squeakvm.org/svn/squeak/branches/Cog">http://www.squeakvm.org/svn/squeak/branches/Cog</a> Date: 2016-05-01 22:12:46 -0700 Plugins: r3688 <a href="http://squeakvm.org/svn/squeak/trunk/platforms/Cross/plugins">http://squeakvm.org/svn/squeak/trunk/platforms/Cross/plugins</a><br>CoInterpreter VMMaker.oscog-eem.1855 uuid: d8e4a3c2-a3bf-4adc-b224-8012903a1ef4 May  2 2016<br>StackToRegisterMappingCogit VMMaker.oscog-nice.1853 uuid: 3ff63b2d-9dc9-4d6a-b3ff-fb6d37f1085e May  2 2016<br><br></div><div>What kind of configuration is it? Is it using a native windows library instead of a robust linux libm?<br></div></div>