(before someone, e.g. Eric complains, mind that I was forced to use webmail in this message, so I have no control over the format of the message)
----- Mensaje Original ----- Remitente: "Arkady V.Belousov" [EMAIL PROTECTED] Destinatario: [EMAIL PROTECTED] Fecha: Martes, Junio 22, 2004 11:41am Asunto: Re: [Freedos-devel] bug in UMB support >ASM> UMBs are different from other memory blocks. For instance, if >you are >ASM> using EMM386 to provide UMBs, you may get troubles with DMA >because of >ASM> the mismatch of linear and physical addresses. > FD currently compares buffer address (in dsk.c and blockio.c) with >explicit A000 when decising to use internal buffer for disk IO, so no >problems. I didn't mean just the kernel, but the possible TSRs that might be loaded high and make use of DMAs or such things just because they chose to load in the uppermost position in the MCB chain. Aitor ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ Freedos-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/freedos-devel
