Re: Mixing hard and soft floating point?

2009-10-18 Thread Joakim Tjernlund
Wolfgang Denk w...@denx.de wrote on 17/10/2009 21:34:54: Dear Joakim Tjernlund, In message OFEC00B9FB.B03AA854-ONC1257652.00644350-C1257652. 00651...@transmode.se you wrote: Recompile and relink it with soft-fp as well. Or ask the provider to do that. That is what I am trying

Re: Mixing hard and soft floating point?

2009-10-18 Thread Wolfgang Denk
Dear Joakim Tjernlund, In message ofefbde7c9.da9d5b8b-onc1257653.003e3dc6-c1257653.003f0...@transmode.se you wrote: If the application is really using FP instructions a lot, then there is a huge difference between using soft-float and MATH_EMU; I remember test cases where soft-float was

Re: Mixing hard and soft floating point?

2009-10-18 Thread Peter Bergner
On Sat, 2009-10-17 at 21:34 +0200, Wolfgang Denk wrote: Dear Joakim Tjernlund, OK, but then you don't mix some libs/apps with soft and other apps/libs with hard FP? No, we never tried that. Sounds scary to me. And dangerous. Hard-float and soft-float are ABI incompatible, so you cannot

Mixing hard and soft floating point?

2009-10-17 Thread Joakim Tjernlund
Anyone tried mixing hard and soft FP in on soft float CPU such as 83xx? Been trying to figure out if this is a good idea or not. Any combinations that will or won't work? Generally I got soft FP in all system libs but there might be an binary application which will use hard FP. Is the MATH_EMU

Re: Mixing hard and soft floating point?

2009-10-17 Thread Wolfgang Denk
Dear Joakim Tjernlund, In message ofc920e57f.dfabc29f-onc1257652.00421e11-c1257652.00434...@transmode.se you wrote: Anyone tried mixing hard and soft FP in on soft float CPU such as 83xx? Hm... most 83xx have a FPU. Been trying to figure out if this is a good idea or not. Any

Re: Mixing hard and soft floating point?

2009-10-17 Thread Joakim Tjernlund
Wolfgang Denk w...@denx.de wrote on 17/10/2009 20:12:24: Dear Joakim Tjernlund, In message OFC920E57F.DFABC29F-ONC1257652.00421E11-C1257652. 00434...@transmode.se you wrote: Anyone tried mixing hard and soft FP in on soft float CPU such as 83xx? Hm... most 83xx have a FPU. Yeah, I

Re: Mixing hard and soft floating point?

2009-10-17 Thread Wolfgang Denk
Dear Joakim Tjernlund, In message ofec00b9fb.b03aa854-onc1257652.00644350-c1257652.00651...@transmode.se you wrote: Recompile and relink it with soft-fp as well. Or ask the provider to do that. That is what I am trying do/find out. The supplier claims that it should not be a problem