MSA support

Kai Ruottu kai.ruottu@wippies.com
Sun Jan 21 12:59:00 GMT 2018


Polina Belova kirjoitti 21.1.2018 klo 14:00:
> I’m trying to build a toolchain for cross-compiling for MIPS under x86 with
> crosstool-ng.
> According to GCC 7.2.0 documentation it must support msa instructions. But
> when I’m building an application with assembly msa instructions using buit
> toolchain the application doesn’t execute and fails with "Illegal
> Instruction". What am I doing wrong?

Does the used CPU support MSA instructions?  A quick googling told that 
"R5/R6" or "R6"
level MIPS CPUs would be required.  I found only one MSA supporting CPU, 
"P5600" in the
following list :
https://en.wikipedia.org/wiki/List_of_MIPS_architecture_processors
  Probably all the "Release 6" CPUs support it but not being mentioned....



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