1. Introduction to the R10000 Processor
1.5 Program Order and Dependencies
From a programmer's perspective, instructions appear to execute sequentially, since they are fetched and graduated in program order (the order they are presented to the processor by software). When an instruction stores a new value in its destination register, that new value is immediately available for use by subsequent instructions.
Internal to the processor, however, instructions are executed dynamically, and some results may not be available for many cycles; yet the hardware must behave as if each instruction is executed sequentially.
This section describes various conditions and dependencies that can arise from them in pipeline operation, including:
Copyright 1995, MIPS Technologies, Inc. -- 29 JAN 96
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