Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.

Data Bus

logicman112
Beginner
245 Views

If the following one byte instruction is executed for a IA-32 processor in 32 bit protected mode:

MOV [ebx], al

What will be the value of D63 to D8 physically?

0 Kudos
2 Replies
neni
New Contributor II
245 Views
i assume you are interested in what will be the physical address you will see on the bus. and the answer is, if you see something on the bus (depends on cacheability of the address) it will be based on the page table setting for the virtual address value in ebx
Anthony_B_Intel
Employee
245 Views
The value of theupper 3 bytes of the location referenced by ebx will be unaffected by the above instruction.
Reply