Lines Matching refs:U
346 |--NOTE THAT U = (Y-F)/F IS VERY SMALL AND THUS APPROXIMATING
347 |--LOG(1+U) CAN BE VERY EFFICIENT.
381 fmulx (%a0),%fp0 | ...FP0 IS U = (Y-F)/F
384 fmulx %fp2,%fp2 | ...FP2 IS V=U*U
387 |--LOG(1+U) IS APPROXIMATED BY
388 |--U + V*(A1+U*(A2+U*(A3+U*(A4+U*(A5+U*A6))))) WHICH IS
389 |--[U + V*(A1+V*(A3+V*A5))] + [U*V*(A2+V*(A4+V*A6))]
410 fmulx %fp0,%fp1 | ...U*V*(A2+V*(A4+V*A6))
411 faddx %fp2,%fp0 | ...U+V*(A1+V*(A3+V*A5)), FP2 RELEASED
413 faddx (%a0),%fp1 | ...LOG(F)+U*V*(A2+V*(A4+V*A6))
415 faddx %fp1,%fp0 | ...FP0 IS LOG(F) + LOG(1+U)
428 |--LOG(X) = LOG(1+U/2)-LOG(1-U/2) WHICH IS AN ODD POLYNOMIAL
429 |--IN U, U = 2(X-1)/(X+1) = FP1/FP0
433 fdivx %fp0,%fp1 | ...FP1 IS U
436 |--LET V=U*U, W=V*V, CALCULATE
437 |--U + U*V*(B1 + V*(B2 + V*(B3 + V*(B4 + V*B5)))) BY
438 |--U + U*V*( [B1 + W*(B3 + W*B5)] + [V*(B2 + W*B4)] )
441 fmovex %fp1,SAVEU(%a6) | ...STORE U IN MEMORY, FREE FP1
459 fmulx SAVEU(%a6),%fp0 | ...FP0 IS U*V
464 fmulx %fp1,%fp0 | ...U*V*( [B1+W*(B3+W*B5)] + [V*(B2+W*B4)] )