Microprocessor without Interlocked Pipeline Stages
(MIPS) A project at Stanford University intended to simplify processor design by eliminating hardware interlocks between the five pipeline stages. This means that only single execution cycle instructions can access the thirty two 32-bit general registers, so that the compiler can schedule them to avoid conflicts. This also means that LOAD/STORE and branch instructions have a one-cycle delay to account for. However, because of the importance of multiply and divide instructions, a special HI/LO pair of multiply/divide registers exist which do have hardware interlocks, since these take several cycles to execute and complicate instruction scheduling.
The project eventually lead to the commercial MIPS R2000 processor.Last updated: 1995-02-09
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Microprocessor without Interlocked Pipeline Stages ♦ microprogramming
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