ps_1_1
  def c5, 0, 0.5, 0, 0
  def c6, 0, 1, 0, 0
  def c7, 1, 0, 0, 0
  tex t0
  tex t1
  mov r0.xyz, t0_bias
+ sub r0.w, t1, t0
  add t1, r0, r0.w
  dp3 t1, t1, c7
  mad r1, t1, c0, t0_bias
  dp3 t1, r1, c6
  mad r0, t1, c1, t0
  mad t1, t1, c6, c5
  mad r0, r0, c4, t1
