doug@cornell.UUCP (Douglas Campbell) (01/29/85)
Here's an interesting question for those who know something about Xenix-286. How difficult will it be to manipulate *real* addresses, such as bit-mapped graphics memory? Assuming that some sort of user-definable device drivers can be written, it *should* at least be possible. But what will the performance and design costs be? In short, what's needed is some way to drop into real address mode and then pop back out again. Without an easy way to do this, memory- mapped devices will be highly difficult to work with. I'll post a summary of responses. (Is Microsoft listening?) Thanks, Doug Campbell doug@cornell.{UUCP|ARPA} P.S. Please don't flame the 286 architecture. The 286 is still smoking from an earlier discussion on net.micro.