On Thu, Jun 28, 2007 at 10:04:12AM -0400, Alex Roman wrote: > On 26/06/07, Alex Roman <[EMAIL PROTECTED]> wrote: > >Thought I'd write a little status update on this project. > > All right, I took a look at the Bochs BIOS source code, and they seem > to be implementing just one Int 13h function that is specified in the > Eltorito specification: the 4B01h that isolinux needs to boot. > > Next, I started to use Bochs' internal debugger and I noticed that the > grub_gate_a20 function clobbers %edx which was what was causing me the > grief, since I was holding the number of bytes to copy from my buffer > (that I read into from the CD) to 7c00h. So, instead of copying at > least 2k which is what ISOLINUX expects, it was copying only 224 bytes > (or something like that, the leftover value in %edx). > > Now that I figured that out, *I managed to get the FreeDOS CD to boot! :)*
Congrats :-) -- Robert Millan My spam trap is [EMAIL PROTECTED] Note: this address is only intended for spam harvesters. Writing to it will get you added to my black list. _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
