CPU_CT_xSIZE_M
if (dsize & CPU_CT_xSIZE_M)
multiplier = (isize & CPU_CT_xSIZE_M) ? 3 : 2;
if (isize & CPU_CT_xSIZE_M)
multiplier = (dsize & CPU_CT_xSIZE_M) ? 3 : 2;
if (dsize & CPU_CT_xSIZE_M)