Attempts to access other addresses trigger an interrupt which cause the CPU to re-enter supervisor mode, placing the kernel generally resorts to terminating the offending program, and reports the error.
22.
A protected mode timer is set by the kernel which triggers a return to supervisor mode after the specified time has elapsed . ( See above sections on Interrupts and Dual Mode Operation .)
23.
Whenever supervisor mode is needed, either by the kernel or user programs, the library functions " Supervisor ( ) " or " SuperState ( ) " are used.
24.
Attempts to alter these resources generally causes a switch to supervisor mode, where the operating system can deal with the illegal operation the program was attempting ( for example, by killing the program ).
25.
The ND-100 line was machine-instruction compatible with the Nord-10 line, except for some " extended instructions ", all in supervisor mode, mostly used by the operating system.
26.
The supervisor mode is used by the operating system's kernel for low level tasks that need unrestricted access to hardware, such as controlling how memory is written and erased, and communication with devices like graphics cards.
27.
The " same " printf usually isn't available in kernel code ( or other supervisor mode code, like device drivers ) because they don't run in an application context ( with a controlling terminal and a process id and so forth ).
28.
On newer processors, it disables supervisor mode execution prevention ( a processor capability that is used to prevent low privilege code like applications from running instructions with higher level privileges ) and then re-enables supervisor mode execution prevention when the application is done running kernel-level code.
29.
On newer processors, it disables supervisor mode execution prevention ( a processor capability that is used to prevent low privilege code like applications from running instructions with higher level privileges ) and then re-enables supervisor mode execution prevention when the application is done running kernel-level code.
30.
For instance it assumes the modernity of an architecture based on hierarchical privilege levels ( as Supervisor mode ), while academic research on computer architecture replaced this outdated technology many years ago ( see for instance the bibliography of capability-based security ), showing that it provides both poor BMF81 00 : 31, 26 August 2006 ( UTC)
