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data paths, and their longer simple pipeline. Writes to main memory DRAM took several cycles to fully complete, but the R2020 chips queued and completed up to 4 pending writes to main memory, allowing the R2000 core to proceed without stalling itself. In the absence of cache misses, this chipset sustained an instruction completion rate of one instruction per ALU cycle. This was more efficient than non-RISC microprocessors of that

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