| 释义 |
system call
Thesaurus| Noun | 1. | system call - an instruction that interrupts the program being executed and passes control to the supervisorsupervisor call instructioncall - an instruction that interrupts the program being executed; "Pascal performs calls by simply giving the name of the routine to be executed" |
system call
system call[′sis·təm ‚kȯl] (computer science) supervisor call system call (operating system, programming)The mechanism used by anapplication program to request service from the operating system. System calls often use a special machine codeinstruction which causes the processor to change mode (e.g. to"supervisor mode" or "protected mode"). This allows the OSto perform restricted actions such as accessing hardwaredevices or the memory management unit.See SYSCALL
See SYSCALLsystem call
Synonyms for system callnoun an instruction that interrupts the program being executed and passes control to the supervisorSynonyms- supervisor call instruction
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