[remove the jmp from the loop
peter@cordes.ca**20080314061107] {
hunk ./rshift.asm 58
+	addq	$2, %rdx		C n= -n + 2
+	jge	L(out)			C j if ZF=0 and SF=OF.  j if orig_n<=1, AFAICT.
hunk ./rshift.asm 64
-	addq	$2, %rdx		C n= -n + 2
-	jge	L(out)			C j if ZF=0 and SF=OF.  j if orig_n<=1, AFAICT.
hunk ./rshift.asm 78
-	jmp	L(loop)
+	addq	$2, %rdx		C n= -n + 2
+	jl	L(loop)
}