1. There are a fixed number of registers in the CPU
• Registers hold data
• Data move from Memory to Registers
• Results move from Registers back to Memory
2. There is an 1-cache in the CPU that holds recently fetched instructions.
• If you execute a loop that fits in the cache, the CPU goes to memory for those instructions only once, then executes them out of its cache.
3. Addresses and Pointers
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【2014-11-21】《The Hardware/Software Interface》– Section 1