On Thu, 11 Sep 2008 16:03:04 -0600, Jordan Crouse jordan.crouse@amd.com wrote:
On 11/09/08 17:49 -0400, Joseph Smith wrote:
OK, My JMP question is about copying a drives mbr to memory 0x7c00 and or 0x0600 at 512 byte blocks. Which is doable. I haven't decided wetheir to try Ron's
suggestion
and try to execute the mbr (hence the JMP question) OR we could even
write
code to translate the mbr and JMP/execute directly to the active
bootable
partition OR even better we could write code translate the mbr, goto the active bootable partition and translate it, and JMP/execute right to the boot manager, thus bypassing a whole bunch of real mode interrupts. What
do
you think?
You won't be successful. Any executable code in any MBR is going to use real mode software interrupts. You can't get around that, you shouldn't try. We have very intellegent payloads that can boot any operating
system
imaginable. Use that.
Ah, Jordan you speak to soon. I have learn a way to setup a simple real mode interrupt handler, capable of sending generic/dummy responses back to the software....