Mode Switch
Validate the following statements:
1. Kernel To User Mode Switch can be done by a Non Privileged Instruction. eg Return From Interrupt. True
2. Kernel To User Mode Switch can be done by a Non Privileged Instruction. eg Return From Exception. True
3.User to Kernel mode can be done by a Non Privileged instruction. True
Reason based on my understanding: (A non privileged instruction can generate a system call to switch to Kernel mode)
4 User to Kernel mode switch is an example of Priviliged Instruction. False
5. Return From Interrupt is a non privileged instruction. True
6. Return From Exception is a privileged instruction. True
7. User To Kernel Mode switch can be done via system call(software interrupt), Hardware interrupt( getting output via a printer) as well as exception. True
Please validate these and help me understand if I am wrong.
