( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
-open STDOUT,"| $^X $xlate $flavour $output";
+open STDOUT,"| \"$^X\" $xlate $flavour $output";
($lo,$hi)=("%rax","%rdx"); $a=$lo;
($i0,$i1)=("%rsi","%rdi");