Eugene Surovegin wrote: >On Fri, Nov 11, 2005 at 07:51:31AM -0500, Greg Weeks wrote: > > >>lily wrote: >> >> >> >>>hi,all: >>>i build an embedded linux on powerpc 405ep,i need execute floating >>>point operation,and i enable "math emulate" option in kernel, i run a >>>while(1)loop ,in the loop there was floating point expression ,after >>>test ,i found the while (1) exit because of the floating point >>>computation,that is the floating point can't execute on ppc >>>stablely.Is there someone meets the same problems ,please give me some >>>suggestion,thanks!!! >>> >>> >>The 405ep has some errata on floating point use. >> >> > >Are you sure it was 405ep? There is no floating point errata for this >chip due to the simple reason, it doesn't support floating point in >hardware at all. > >You probably confusing it with 440ep. > > > You're right. It was the 440ep. The 405ep BSP is using the 4xx toolchain. I don't think I've ever tried the math emulator on a 405.
Greg Weeks
