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د. بســام كحـالــه Dr. Bassam Kahhaleh

د. بســام كحـالــه Dr. Bassam Kahhaleh. 22444. Computer Architecture & Organization (1). “ Mano ” Chapter 4:. 22444 - Computer Architecture & Organization (1). Register Transfer & Microoperations. Micro-Operations.

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د. بســام كحـالــه Dr. Bassam Kahhaleh

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  1. د. بســام كحـالــه Dr. Bassam Kahhaleh 22444 Computer Architecture&Organization (1)

  2. “Mano” Chapter 4: 22444 - Computer Architecture & Organization (1) Register Transfer & Microoperations

  3. Micro-Operations A micro-operation is an elementary operation, performed during one clock pulse, on the information stored in one or more registers. R1 ← R1 + R2

  4. Register Designation • Whole register • Portion of a register • One bit in a register

  5. Parallel Register Transfer • Unconditional R1 ← R2 • Conditional P: R1 ← R2 • Simultaneous R1 ← R2 , R3 ← R2

  6. Bus Transfer R2 ← RA R1 ← RD Consider: Ri ← Rx where i = 0, 1, 2 or 3 x = A, B, C or D

  7. Bus Transfer

  8. Bus Transfer

  9. Bus Transfer

  10. Bus Transfer

  11. Bus Transfer

  12. Bus Transfer

  13. Micro-Operation Types • Data Transfer • Arithmetic Operations • Logic Operations • Shift Operations

  14. Micro-Operation Types • Data Transfer • Arithmetic Operations S = A + B • Logic Operations • Shift Operations

  15. Addition S = A + B Time (Propagation) delay = ?

  16. Addition S = A + B t = 0 Time (Propagation) delay = ?

  17. Addition S = A + B t = t Time (Propagation) delay = ?

  18. Addition S = A + B t = 2t Time (Propagation) delay = ?

  19. Addition S = A + B t = 3t Time (Propagation) delay = ?

  20. Addition S = A + B t = 4t Time (Propagation) delay = 4 t

  21. Addition A ← A + B Flag

  22. Subtraction A ← A⎯B _ A ← A + ( B + 1 )

  23. Increment A ← A + 1

  24. Decrement A ← A⎯ 1

  25. Arithmetic

  26. Arithmetic

  27. Arithmetic

  28. Arithmetic Data Control

  29. Micro-Operation Types • Data Transfer • Arithmetic Operations • Logic Operations • Shift Operations AND: S = AΛB OR: S = A V B XOR: S = AB AND: S = A • B OR: S = A + B XOR: S = AB

  30. Logic

  31. Logic

  32. Logic

  33. Logic

  34. Logic Data Control

  35. Micro-Operation Types • Data Transfer • Arithmetic Operations • Logic Operations • Shift Operations • Logical Shift shl A shr A • Arithmetic Shift ashl A ashr A • Circular Shift cil A cir A

  36. Logical & Arithmetic Shift

  37. Logical & Arithmetic Shift

  38. Logical & Arithmetic Shift

  39. Logical & Arithmetic Shift

  40. Logical & Arithmetic Shift

  41. Logical, Arithmetic, & Circular Shift

  42. Logical, Arithmetic, & Circular Shift

  43. Arithmetic and Logic Unit (ALU)

  44. Chapter 4 4-1 4-2 4-3 4-4 4-5 4-6 4-8 4-9 4-10 4-11 4-13 4-15 4-16 4-17 Homework

  45. Homework • Mano

  46. Homework

  47. Homework

  48. Homework

  49. Homework

  50. Homework

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