![]() ![]() 5-stage pipeline: Up to five instructions can be allocated for execution (a detailed explanation can be found in a previous article.32-bit address bus: Up to 4 GB of physical memory can be addressed.An internal 64-bit bus connected to an external 32-bit data bus: While double-words won’t degrade performance when operated internally, the CPU will still need to expend extra cycles to move 64-bit data throughout the system.It’s worth mentioning that since MIPS II, load delay slots are gone for good, though branch delay ones still persist.The instructions format is 32-bit long, independently of the mode. It features new instructions that operate double-words. The MIPS III ISA: A RISC instruction set that succeeds MIPS II.32 general-purpose registers: These are 32-bit wide in ‘32-bit mode’ and 64-bit wide in ‘64-bit mode’.Consequently, large data can be operated more efficiently, although this also increments the size of the program considerably (for instance, pointers occupy 8 Bytes instead of 4). ![]() This includes registers, data and memory addresses - though only 40 bits are decoded in the latter case.
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