Dot product

Single precision floating point.
System V AMD64 ABI convention.


sses_dot:
    movaps xmm0, [rdi]
    mulps xmm0, [rsi]
    haddps xmm0, xmm0
    haddps xmm0, xmm0
    ret

>>48
The latter is kind of important because now ANSI/ISO (?) has now drafted a series of proposals to make threads standards. I guess POSIXs "we are totally vague how the shit" wasn't cutting it -(.