Date: Thu, 5 Sep 2013 07:58:38 -0400 From: Yaniv Sapir <yaniv@...pteva.com> To: john-dev <john-dev@...ts.openwall.com> Subject: Re: Parallella: Litecoin mining Alexander is right, and you can see examples of how the compiler switches modes using objdump. Usually if you compile w/o -mfp-mode option - when mixing integer and real statements, you should find places where the compiler emitted "CONFIG" programming sequences involving setting GIE and GID. On Wed, Sep 4, 2013 at 12:53 AM, Solar Designer <solar@...nwall.com> wrote: > Hi Rafael, > > On Wed, Sep 04, 2013 at 04:54:55AM +0100, Rafael Waldo Delgado Doblas > wrote: > > BTW I was debugging with e-gdb and I found that even If I use the imadd > > instruction the bynary image uses fmadd, > > This is normal. They are one and the same instruction, so the > disassembler has no way to know which is meant - and it shows fmadd. > > > There any way to use integer math? > > You should, of course, switch the FPU to integer mode. This is done by > flipping a bit in the CONFIG register. I think e-gcc emits the > necessary instructions in init() if you build with "-mfp-mode=int", > which you should. > > Alexander > -- =========================================================== Yaniv Sapir Adapteva Inc. 1666 Massachusetts Ave, Suite 14 Lexington, MA 02420 Phone: (781)-328-0513 (x104) Email: yaniv@...pteva.com Web: www.adapteva.com ============================================================ CONFIDENTIALITY NOTICE: This e-mail may contain information that is confidential and proprietary to Adapteva, and Adapteva hereby designates the information in this e-mail as confidential. The information is intended only for the use of the individual or entity named above. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of any of the information contained in this transmission is strictly prohibited and that you should immediately destroy this e-mail and its contents and notify Adapteva. ============================================================== Content of type "text/html" skipped
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