T=d f ld
V=x
R=0.5,3,0.5
F=1*(log2(x)=log2(2)) + \
  2*(log2(x)<log2(2)) + \
  4*(log2(x)<=log2(2)) + \
  8*(log2(x)>log2(2)) + \
  16*(log2(x)>=log2(2)) + \
  32*(log2(x)!=log2(2))
C=1*fp_equal(fp_log2(x),fp_log2(2)) + \
  2*fp_less(fp_log2(x),fp_log2(2)) + \
  4*fp_lessOrEq(fp_log2(x),fp_log2(2)) + \
  8*fp_greater(fp_log2(x),fp_log2(2)) + \
  16*fp_greaterOrEq(fp_log2(x),fp_log2(2)) + \
  32*fp_nequal(fp_log2(x),fp_log2(2))
