Ah, not without some form of process interop. A 64 bit app can't invoke a 32-bit dll
http://msdn.microsoft.com/en-us/library/windows/desktop/aa384231(v=vs.85).aspx On 64-bit Windows, a 64-bit process cannot load a 32-bit dynamic-link library (DLL). Additionally, a 32-bit process cannot load a 64-bit DLL. However, 64-bit Windows supports remote procedure calls (RPC) between 64-bit and 32-bit processes (both on the same computer and across computers). On 64-bit Windows, an out-of-process 32-bit COM server can communicate with a 64-bit client, and an out-of-process 64-bit COM server can communicate with a 32-bit client. Therefore, if you have a 32-bit DLL that is not COM-aware, you can wrap it in an out-of-process COM server and use COM to marshal calls to and from a 64-bit process. On Wed, Oct 29, 2014 at 10:46 AM, 'Pascal Jasmin' via Programming < programm...@jsoftware.com> wrote: > I was hoping the 32 bit functions somehow exist, and there is an > abracadabra that unlocks them, in 64 bit J. > > > ----- Original Message ----- > From: Joe Bogner <joebog...@gmail.com> > To: programm...@jsoftware.com > Cc: > Sent: Wednesday, October 29, 2014 7:08 AM > Subject: Re: [Jprogramming] 32 bit mersenne twister in 64 bit J > > Pascal, is your question whether it's possible to call an older version of > the j.dll? If so, I don't see why not. See > http://jsoftware.com/wsvn/addons/trunk/general/misc/jdll.ijs for an > example > of calling j.dll. It seems like you would just need to point to the path of > the older version > > > > > On Tue, Oct 28, 2014 at 8:17 PM, 'Pascal Jasmin' via Programming < > programm...@jsoftware.com> wrote: > > > The algorithm for ? generation (mode 2 in NRG select) changed in J-64. > Is > > there a way to import j.dll functions so as to use the old version? > > > > see http://www.jsoftware.com/pipermail/programming/2014-June/037583.html > > > > > > That request aside, I was able to create some portable (32 and 64 bit > > identical streams) random generation code. Some of which are quite fast. > > > > > > > http://www.jsoftware.com/jwiki/PascalJasmin/portable%20and%20possibly%20secure%20RNGs > > > > There are also some versions that may be applicable to cryptography. > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
