using xmmintrin.h in ubuntu

vijaygj · 02-27-2009, 04:54 AM

hi,
I am working on inline assembly coding for which I need to use xmmintrin.h file.
But this file require variable called 'SSE' which is hardware feature provided by processor.
I am using Core 2 duo processor.

Header file has following code,

#ifndef __SSE__
# error "SSE instruction set not enabled"
#else

Now I want to know how I can enable SSE instruction set on Ubuntu.

Thanks in advance,
Vijay.

kbensema · 07-24-2010, 11:32 PM

Vijay:

I'm assuming you're using gcc or g++. To enable intrinsics add the command-line option -msse -mmmx -msse2 to enable SSE, MMX, and SSE2 intrinsics respectively.

e.g.
gcc -o program -msse -mmmx -msse2 sourcefile.c

-Kevin