size2mask
offset &= size2mask(addrsize);
firstoff &= size2mask(addrsize);
*gla = (segbase + firstoff) & size2mask(glasize);
return (size2mask[size]);
gla2 &= size2mask[vie->addrsize];
static uint64_t size2mask[] = {
val &= size2mask[size];
val |= origval & ~size2mask[size];
val &= size2mask[size];
val &= size2mask[size];
val &= size2mask[size];
val = vie->immediate & size2mask[size];