de- interleaving

[etienne deleflie <eyem@lalila.net>]

Here's an other way to enlarge your penis .... help me with this.

I'm on intel P4.

I have a video stream arranged in YUV422 ....which is [Y U Y V] [Y U Y 
V] [Y U Y V]  ..... ([] = 32 bits)

I want to extract this into 2 streams :
[ Y Y Y Y] [ Y Y Y Y] [ Y Y Y Y]
[ U V U V] [ U V U V] [ U V U V]

which basically means I have do de-interleave the first stream into 2.

I see there is an MMX instruction that does the exact opposite:
PUNPCKHBW ............  "unpack and interleave"

anyone have any idea what the (MMX ?) instruction might be (or if it 
exists .... I cant find it in the intel manual (which is 900 pages 
long...urgh))

etienne
.