Eric, > Next topic, the floppy change line problems for UIDE: > > https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Devices/PC/BIOS-new/floppy.c?rev=40754#L982 > > VirtualBox does indeed report "without change line" > for floppy in int 13.15 and does indeed report that > no change line status is available in int 13.16, so > UIDE which only looks for "known changed" status as > opposed to int 13.16 results which are "NO status" > is expected to be in trouble...
Only when the BIOS data-table tells UIDE/UIDE2 (A) one or two diskettes are present, and (B) one or both of those diskettes have change-line support. > https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Devices/PC/BIOS-new/orgs.asm#L1104 > > Interestingly, 40:8f is set to 00, 07, 70 or 77 based > on whether you have A: or B: or both and this is also > described as "determined, multi-rate, chgline". This > could be a BUG in VirtualBox, given the int 13.15 and > int 13.16 code described above... "Determined, multi-rate, chgline"?? I say again: "Determined, multi-rate, AND CHANGE-LINE"??!! So, irrespective of all the supposed "pundits" on this forum who say UIDE/UIDE2 ought to use ONLY the Int 13h calls, when finding if a diskette has change-line support, it seems that SOMEBODY at VirtualBox deemed it NECESSARY to post a CHANGE- LINE SUPPORTED bit at 0:048Fh!! A CHANGE-LINE SUPPORTED bit at 0:048Fh!! How INTERESTING!! NOT including you, Eric, who took the time to "find out" all of the above, but I think there are many God-DAMNED BUFFOONS on this forum who owe ME an APOLOGY!!!! Jack R. Ellis ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
