[move pxor further before it's result is needed
peter@cordes.ca**20080314174135] {
hunk ./rshift.asm 103
+	pxor	%xmm2, %xmm2		C we need this for later, in L(out)
+
hunk ./rshift.asm 143
-	pxor	%xmm2, %xmm2
+	C pxor	%xmm2, %xmm2  C moved to middle of integer work at beginning of function. not that it saved any cycles.
}