anchor.diff:        (inst movdqa (nth-xmm-mem buffer 0) x0)
         (inst movdqa (nth-xmm-mem buffer 1) x1)
         (inst movdqa (nth-xmm-mem buffer 2) x2)
  -      (inst movdqa (nth-xmm-mem buffer 3) x3)))))
  +      (inst movdqa (nth-xmm-mem buffer 3) x3))))
   )                        ; PROGN
  
positive.code:         (inst sub count 1)
          (inst jmp :nz repeat))
  
        (progn
        (inst movdqa x0 (nth-xmm-mem state 0))
        (inst movdqa x1 (nth-xmm-mem state 1))
        (inst movdqa x2 (nth-xmm-mem state 2))
  
negative.code:         (inst sub count 1)
          (inst jmp :nz repeat))
  
        (inst movdqa x0 (nth-xmm-mem state 0))
        (inst movdqa x1 (nth-xmm-mem state 1))
        (inst movdqa x2 (nth-xmm-mem state 2))
  