Changes
/* Privilege Modes */
Switching from User mode to Supervisor mode happens only through exceptions or interrupts, ensuring user programs cannot gain higher privileges on their own. All exceptions, including system calls and errors, automatically trigger Supervisor mode, and all related memory accesses are treated as Supervisor references.
An external Memory Management Unit (MMU) can help enforce access control based on privilege levels, preventing User mode programs from modifying system memory. It also aids in virtual memory management and multitasking. By keeping User and Supervisor modes separate, This separation helps protect the system stays secure, prevents programs from causing crashes, user program errors and allows smooth multitasking with better memory handlingmalicious activities.
== Instruction Set ==
