>> I guess this means we'll be able to drop the old sets of >> PCI UDMA drivers and cdrom-drivers as well, though I can >> remember using some of them to get a more stable pci-bus >> set up. (more initialisation done than standard PCI by >> BIOS) > > Interesting, but using BIOS is more compatible, I hope.
I agree. Since about 2006, my UltraDMA drivers have not tried to alter any BIOS settings. In a few cases, doing so caused a system to HANG. Unsure why, but to be safe, the drivers will now "accept" whatever UltraDMA/PIO modes and other disk settings the BIOS makes. Most BIOS logic is quite accurate at handling the PCI bus these days, but some BIOS programs still OMIT any "Virtual DMA" logic and force disks to use "PIO" for JEMM386 or "protected mode". This is why at least UIDEJR is still needed. > What I miss in UIDE is support for BIOS Eltorito disk > access of the CD/DVD you booted from. Similar to the > ELTORITO SYS from Bart L, hopefully with similar list > of BIOS bug workarounds of which there seem to be many > in the driver from Bart ;-). That would make UIDE even > more universal for CD/DVD access in DOS :-). Bernd suggested this to me privately, earlier today. I am currently modifying UIDEJR so Bernd can use it in his automatic-loader "scripts" -- UIDEJR will not "hook" the Int 13h vector if no disks are used, will declare a name of "UIDEJR$" overriding the /D: name if no CD/DVD drives are found, and will have /N3 to work without XMS memory. Had it working but by-mistake ERASED my hard disk today, so I must reconstruct the new driver from memory; I have CD/RW backups for all else. After that, and maybe some similar UIDE changes, THEN I can look at "El Torito"! ------------------------------------------------------------------------------ OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
