hi --- James HAUXWELL <james.hauxwell@xxxxxx> wrote: > Hi, > > I have a piece of code using mmx/sse intrinsics > > ta = __builtin_ia32_pmaddwd(ia, one); > tb = (v2si)__builtin_ia32_psrlq((di)ta, 32); > dest.__v = __builtin_ia32_paddd(ta, tb); > satd = dest.__a[0]; > > At the phase where I move the bottom 32bits of the > mmx register to a > normal register well i have a doubt in this i.e whether this is really happening or not. because i am also usign gcc compiler only and movd instrction works. if your things work let me also know about it thanks I should be able to use a movd > instruction (according to > intel documentation), but what ever I do I can't > generate one. It is > currently generating a movq to a memory loacation > and then doing a > shorter load from the same location. > > should be something like. > > ta = __builtin_ia32_pmaddwd(ia, one); > tb = (v2si)__builtin_ia32_psrlq((di)ta, 32); > satd = (int)__builtin_ia32_paddd(ta, tb); > > Is anyone familiar enough with intrinsics to know > why this doesn't work? > > Jim > ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html
