Computer Architecture Final 3

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Across
  1. 3. The _____ address register stores the memory address for the data to be fetched for the CPU.
  2. 4. A pseudo-instruction (acronym) to define the origin, or first address, of a microprogram routine.
  3. 5. The acronym representing a circuit that is a combination of the arithmetic circuit and the logic circuit.
  4. 6. ___ control is when control logic is implemented with gates, flip-flops, decoders, and other digital circuits.
  5. 9. What you use to translate a program from a high-level language to machine language.
  6. 13. Number of bits in an address.
  7. 14. ____ language is the language that the computer understands as a binary program where the sequence of instructions and operands in binary that list the exact representation of instructions as they appear in computer memory.
  8. 15. ___ control is when control logic is stored in memory.
  9. 17. A communication system that transfers data between the different components of a computer. It is often constructed with multiplexers or buffers.
  10. 18. A _____ address instruction is when the second part of the instruction code specifies the address of an operand.
  11. 19. An _____ address instruction is when the second part of the instruction code designates an address of a memory word in which the address of the operand is found.
  12. 20. Number of bits in an opcode.
Down
  1. 1. The part of the instruction cycle in which the computer determines what actions the instruction dictates.
  2. 2. The ____ counter contains the location of the instruction that is currently being executed.
  3. 4. A group of bits in an instruction that define operations such as add, subtract, multiply, shift, and complement.
  4. 5. What you use to translate a program from assembly to machine language.
  5. 7. A single-processor register typically labeled AC, used for the short-term storage of arithmetic and logic data in the CPU.
  6. 8. What does this microoperation do to the contents of R1? R1 <- R1 – 1
  7. 10. The part of the instruction cycle in which the computer retrieves an instruction from memory.
  8. 11. The part of the instruction cycle in which the computer performs the actions of the instruction.
  9. 12. The basic operations executed on data stored in registers. Usually in the form R2 <- R1
  10. 16. The _____ cycle is a sequence of instructions consisting of fetch, decode, read effective address, and execute.