0,S1H,S1L) STXVD2X RH, (R1)(R17) // Save RH // if R == 0 or R^P == 0 then ret=ret else ret=0 // clobbers T1H and T1L // Redo this using ISEL?? MOVD $1, TRUE VSPLTISB $0, ZER VOR RL, RH, T1H VCMPEQUDCC ZER, T1H, T1H // 24 = CR6 NE ISEL $26, R0, TRUE, RES1 VXOR RL, PL, T1L VXOR RH, PH, T1H // SAVE: T1L VOR T1L, T1H, T1H VCMPEQUDCC ZER, T1H, T1H // 26 = CR6 NE ISEL $26, R0, TRUE, RES2 OR RES2, RES1, RES1 MOVD ret+24(FP), RES2 AND RES2, RES1, RES1 MOVD RES1, ret+24(FP) // X=H ; Y=H ; MUL; T- // T1 =...