Register Transfer Language

Register Transger Language

The symbolic notation used to describe the micro operation transfers among register is called a register transfer language.

A register transfer language is a system for expressing in symbolic form the micro operation sequences among the register of a digital module.

For example,

R1 ← R2
  • This statement denotes a transfer of the content of register R2 into register R1.
  • Here, content of R1 is replaced by content of R2.
  • Content of R2 is not affected by this transfer.
If there is a condition, such that.
If (P = 1) then (R1  ← R2)

Where P is a control signal generated by the control bus. 

Above statement can be used as,

P=1: R1 ← R2

The control condition 'P=1' is terminated with a colon. It symbolizes the requirement that the transfer operation be executed by the hardware only if P= 1.

Basic symbols for Register Transfer Language

Symbol

Description

Examples

Letters & numerals

Denotes a register

MAR, R2

Parenthesis ( )

Denotes a part of a register

R2(0-7), R2(L)

Arrow

Denotes transfer of information

R2 R1

Comma ,

Separates two micro operations

R2 R1, R1 ← R2  


For example,

T=1: R2 ← R1, R1 ← R2 
  • Registers (R1, R2) are denoted by capital letters, and numerals. 
  • Parentheses ( ) are used to denote a part of a register.
  • The arrow (←) denotes a transfer of information and the direction of transfer.
  • A comma ( , ) is used to separate two or more operations that are executed at the same time.

More topics from Computer Organization to read

Computer Organization and Architecture:

EasyExamNotes.com covered following topics in these notes.

  1. Structure of desktop computers
  2. Logic gates
  3. Register organization
  4. Bus structure
  5. Addressing modes
  6. Register transfer language
  7. Direct mapping numericals
  8. Register in Assembly Language Programming
  9. Arrays in Assembly Language Programming

References:

  1. William stalling ,“Computer Architecture and Organization” PHI
  2. Morris Mano , “Computer System Organization ”PHI

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  3. Tucker, “Programming Languages: Principles and paradigms “, Tata McGraw –Hill. 
  4. E Horowitz, "Programming Languages", 2nd Edition, Addison Wesley

    Computer Organization and Architecture ↓ 👆

    Computer Organization and Architecture 

    EasyExamNotes.com covered following topics in these notes.

    1. Structure of desktop computers
    2. Logic gates
    3. Register organization
    4. Bus structure
    5. Addressing modes
    6. Register transfer language
    7. Direct mapping numericals
    8. Register in Assembly Language Programming
    9. Arrays in Assembly Language Programming

    References:

    1. William stalling ,“Computer Architecture and Organization” PHI
    2. Morris Mano , “Computer System Organization ”PHI

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    2. Douglas E Comer, “Internetworking with TCP/IP Principles, Protocols, And Architecture",Pearson Education
    3. KavehPahlavan, Prashant Krishnamurthy, “Networking Fundamentals”, Wiley Publication.
    4. Ying-Dar Lin, Ren-Hung Hwang, Fred Baker, “Computer Networks: An Open Source Approach”, McGraw Hill.