software interrupt

An interrupt caused by a specific machine language operation code (e.g. the Motorola 68000's TRAP, the IBM System/390's SVC or the ARM's SWI) rather than by a hardware event.

As with a hardware interrupt, this causes the processor to store the current state, store identifying information about the particular interrupt, and pass control to a first level interrupt handler.

A trap is similar except that it is caused by an unexpected software condition or error (e.g. divide by zero, undefined instruction) rather than a deliberate instruction.

Last updated: 1995-02-14

Try this search on Wikipedia, OneLook, Google

Nearby terms:

software engineering « Software Engineering Environment « software handshaking « software interrupt » Software in the Public Interest, Inc. » software laser » software law

Loading