schorr@ead.dsa.com (Andrew J. Schorr) (09/22/90)
I have verified this limitation, and it seems like a pretty serious one to me. It would seem that there are at least 2 ways to solve this problem: 1. don't require a segment register for memory mapping a file; 2. find some way of swapping segments in and out of the registers (i.e. virtual segments). Frankly, I just don't see why an entire segment must be devoted to a single memory mapping; I'm sure this is an implementation issue, but I think this ought to be corrected. Perhaps I'm alone in feeling this way, but to me, memory mapping is an important tool for improving performance. -Andy