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TK2633: MICROPROCESSOR & INTERFACING

TK2633: MICROPROCESSOR & INTERFACING. Structured Assembly Language Programming. Structured Assembly Language Programming. What is structured assembly language programming ? It is a programming methodology that aids in the development of complicated software with a minimum amount of error.

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TK2633: MICROPROCESSOR & INTERFACING

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  1. TK2633:MICROPROCESSOR & INTERFACING Structured Assembly Language Programming Dr. Masri Ayob: TK2633

  2. Structured Assembly Language Programming • What is structured assembly language programming ? • It is a programming methodology that aids in the development of complicated software with a minimum amount of error. Dr. Masri Ayob: TK2633

  3. Flow Chart • Flow chart is a flow design structured programme to solve the problems. • Flow chart also helps to correct and modify developed software. • There are symbols to use in designing flow chart to ease programmer. These symbols consists of following process: • Process, predefined process, input/output, decision, connector and terminal. • Table shows examples of symbols to use in flow chart programme. Dr. Masri Ayob: TK2633

  4. Dr. Masri Ayob: TK2633

  5. Structured Assembly Language Programming • Process Symbol: • Shows any type of process in a programme. • Predefined process: • Usually contains the name of the subroutine or module. • Input / output symbol: • Whenever data are input to the programme or output from the programme. • The input / output symbol usually shows the type of data and the directioin of data flow. • Decision symbol: • Computer systems’s most capability is ability to make decisions. • The symbol asks question to determine the direction of programme sequence. Dr. Masri Ayob: TK2633

  6. Structured Assembly Language Programming • Connector: • Eliminates crisscrossed connecting lines in complicated flowcharts. • Ease in understanding the developed programme. • Terminal Symbol: • Programmes all start somewhere and require a symbol to show where they start. Dr. Masri Ayob: TK2633

  7. Flow chart • Flow chart example: mean calculation of a set of numbers Dr. Masri Ayob: TK2633

  8. If-Then-Else Dr. Masri Ayob: TK2633

  9. If-Then-Else • The solution. Dr. Masri Ayob: TK2633

  10. Repeat-Until • Allows process to be executed or repeated until an event occurs. • Whenever this construct appears, the process first executes a task and then a test checks for a true or a false condition. • The following figures shows the repeat-until-true and repeat-until-false. Dr. Masri Ayob: TK2633

  11. Repeat-Until: Example • Reads the keyboard until a CR (carriage return) is detected. Dr. Masri Ayob: TK2633

  12. Do-While • Is comparable to the repeat-until except for one basic difference. • The do-while construct checks the condition and then, if required, performs the process and repeats the check. • There are two forms: do-while-false and do-while-true. Dr. Masri Ayob: TK2633

  13. Do-While Dr. Masri Ayob: TK2633

  14. Thank youQ&A Dr. Masri Ayob: TK2633

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