3 ms·

386MAX and EISA DMA

• h2odragon 3y ago
  > I believe that placing the DMA buffer above 16 MB is always wrong in a system with ISA slots. That may well be true. the conjunction of (a) ISA slots (needing busmastering! not just legacy io pounding) (b) more than 16MB ram and (c) running DOS ... I don't think that would've been happening often on real hardware anyway. not when anyone cared, perhaps later as retrocomputing enthusiasts got hold of things. > it’s entirely plausible that it wouldn’t have been encountered when 386MAX was popular masterful understatement