alt Hacker NewsOn the 486 the L2 tag memory is a separate external chip, as are the L2 chips. Why waste space on physical address bits that will never be used? DOS is never using that much memory. So only low addresses are cached.
On the 486 the L2 tag memory is a separate external chip, as are the L2 chips. Why waste space on physical address bits that will never be used? DOS is never using that much memory. So only low addresses are cached.