<style> BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }</style> On Wed 06/02/08 7:42 PM , wojtekb82_23 wojtekb82_23@xxxxx sent: > Hi, > > > > I have the code [appendix 1] that I compile using [appendix 2] on system > [appendix 3]. > > > I get a Segmentation fault at line: > > 0x080487ca : movups (%esi),%xmm0 > > 0x080487cd : addps (%ebx),%xmm0 > 0x080487d0 : movups %xmm0,(%ebx) > > > > What am I doing wrong? What is the alignment of %ebx? If it's not 16 byte aligned you're probably going to get a fault. Tom