In solutions to a question on the book “Operating Systems Concepts” it indicates that issuing a trap not a privileged task. Why is that so?
In solutions to a question on the book Operating Systems Concepts it indicates that
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In solutions to a question on the book “Operating Systems Concepts” it indicates that issuing a trap not a privileged task. Why is that so?
Some instructions need special privileges to run at all, which most of the time means only the OS gets to execute them.
Most user processes (programs) will need to issue a trap / exception to get the OS to run these instructions.