megszakításvektornak

A megszakításvektornak, often translated as interrupt vector, is a crucial concept in computer architecture related to handling interrupts. An interrupt is a signal from hardware or software that indicates an event requiring immediate attention from the processor. When an interrupt occurs, the processor temporarily suspends its current task and jumps to a specific routine to handle the interrupt.

The interrupt vector is essentially an index or address that points to the starting location of the interrupt handler routine for a particular interrupt. In systems that use interrupt vectors, there is a table or array of these vectors, known as the interrupt vector table or interrupt vector list. Each entry in this table corresponds to a specific interrupt source. When an interrupt occurs, the processor determines the interrupt's source and uses that information to look up the corresponding interrupt vector in the table. This vector then provides the memory address where the interrupt service routine (ISR) for that specific interrupt is located.

The use of interrupt vectors allows for a systematic and efficient way to manage multiple interrupt sources. Instead of having a complex decision-making process within the processor to determine how to handle each interrupt, the vector table provides a direct lookup mechanism. This simplifies the interrupt handling logic and allows for faster response times. Different architectures and operating systems may implement interrupt vectoring in slightly different ways, but the core principle of using a vector to locate the appropriate handler remains consistent.