Exception program counter - PowerPoint PPT Presentation

Chapter 4

Chapter 4. CSF 2009 The processor: Exceptions and Interrupts. Exceptions and Interrupts. “Unexpected” events requiring change in flow of control Different ISAs use the terms differently Exception Arises within the CPU e.g., undefined opcode, overflow, syscall, … Interrupt

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Exception Handler’s

Exception Handler’s. CS215 Lecture 21. Hardware Support. With the instructions and design of the MIPS R32 architecture that we have seen so far, there is no way to build a kernel. We have to have some way to get from the user code to the kernel code.

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