Elementary Processor Architecture

A computer is a machine for executing instructions. We will begin by considering a straightforward instruction set:

• 32 general-purpose registers: Ri

• Load/store instructions:
  • LW Ri, address
  • SW address, Ri

• Register-register arithmetic:
  • ADD Ri Rj Rk (meaning R1:=R2+R3)

• Unconditional and conditional jumps:
  • J address
  • BEQZ Ri, address

    (meaning if Ri=0 then PC := address)

(We will use the DLX architecture from H & P)