Reply 20 of 47, by feipoa
- Rank
- l33t++
wrote:I thought 256k 512k or a meg didn't matter it was the tag RAM that defined cacheable area.
With direct-mapped cache, normally, you scale the TAG with the cache, so 1024K of cache would use 64kx8 TAG. I'm not really sure what would happen if you ran 256K of cache with a 64kx8 TAG, but I have a feeling that it isn't going to cache all the 256 MB in WT mode.
Plan your life wisely, you'll be dead before you know it.