That reversal of definitions makes sense. The author goes on to talk about how software—and programmers—can minimize interrupt latency, and he introduces the Link-Service Routine (LSR).

Fig.6: Software Scheme Using Queue Based Interrupt Service Protocol (N Tasks) As it is clear, that in case of queue based interrupt service protocol, complexity of the checker is independent of the ...

On Windows, the CPU will execute threads based on their priority, and then there are interrupt service routines. ISR can take over the CPU from an audio thread, keeping it waiting, which can ...

There should be a single interface routine that controls access to the hardware. Furthermore, it's important to realize that any section of the code can be interrupted and may corrupt the system state ...

The Interrupt Service Routine detects this “zero byte with break error” and signals to the application program regarding edge detection in the input waveform.