At 09:22 AM 5/23/2012, Jack wrote: >You are WRONG, Tom!!
Sorry, Jack, but he is not.... Honestly Jack, please don't explode each time someone is making a critical statement. There simply is no reason to get all personal about this... >UIDE has NEVER ignored if a diskette has change-line support! It >does in fact check the BIOS data table at 0:448h for bit 0 (change >line for diskette A:) or bit 4 (change line for diskette B:). If >those bits are off, diskette A: or diskette B: will not be cached. Beside assuming on my part that 0:0448 is a typo (and you are referring rather to 0040:0041, as used in your sources), the problem that Tom is trying to make you aware of is that you rely on the value in that location regardless of the fact if the system is indicating via BIOS interrupt INT13h/15h that the line change status is supported in the first place. And VB is apparently clearly stating when "asked" that it does not support the drive change line status, hence you can not rely on those bits in the BDA. Simple as that... Ralf ------------------------------------------------------------------------------ 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
