Chapter 2 - The CRA-1

• Useful while learning OS basics to use a reference computer system

• Book creates a Composite RISC Architecture (CRA-1) computer system (implicit homage to Cray-1? :)

• Simple organization: Figure 2.1

  • CRA-1 CPU
    • 32 general-purpose 32-bit registers, r0 through r31
    • Note register usage on page 17

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