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د. بســام كحـالــه Dr. Bassam Kahhaleh

د. بســام كحـالــه Dr. Bassam Kahhaleh. 4343. Computer Organization & Design. Chapter 4:. 4343 - Computer Organization & Design. 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 4343 Computer Organization & Design

  2. Chapter 4: 4343 - Computer Organization & Design 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. Computer Organization The organization of a digital computer is best defined by specifying: • The set of registers it contains and their function • The sequence of micro-operations performed on the binary information stored in the registers • The control functions that initiate the sequence of micro-operations

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

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

  7. Basic Symbols for Reg. Transfer

  8. Serial Register Transfer S: A i ← A i – 1 , A 0 ← 0 i = 1, 2, 3

  9. Bus Transfer

  10. Bus Transfer

  11. Bus Transfer

  12. Bus Transfer

  13. Bus Transfer

  14. Bus Transfer

  15. Memory Transfer MBR ← M M ← MBR

  16. Memory Transfer MBR ← M MBR ← M [ R1 ]

  17. Micro-Operation Summary

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

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

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

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

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

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

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

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

  26. Addition EA ← A + B Flag

  27. Subtraction A ← A–B _ A ← A + ( B + 1 )

  28. Increment A ← A + 1

  29. Decrement A ← A– 1

  30. Arithmetic

  31. Arithmetic

  32. Arithmetic

  33. 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

  34. Logic

  35. Logic

  36. Logic

  37. Logic

  38. 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

  39. Logical & Arithmetic Shift

  40. Logical & Arithmetic Shift

  41. Logical & Arithmetic Shift

  42. Logical & Arithmetic Shift

  43. Logical & Arithmetic Shift

  44. Logical, Arithmetic, & Circular Shift

  45. Logical, Arithmetic, & Circular Shift

  46. Arithmetic and Logic Unit (ALU)

  47. Homework 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

  48. Homework • Mano

  49. Homework

  50. Homework

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