INDEXED ADDRESSING- THE MAIN APPLICATIONS OF THIS TYPE OF ADDRESSIN...

3. Indexed addressing

- The main applications of this type of addressing technique is to enable to access of

sequential locations in memory that are adjacent to each other

- Each adjcent memory address has value n+1, where n is the address of the

previous location

- When the first of the location have been accessed, the next memory location in

sequence is accessed by simply increasing the add of the present location by 1 &

using accessing it

- The starting address of the series of locations is specified in the operand of the

instruction

- In order to access the next location in sequence, the content of the index register is

increased by 1 a added to the opreand address

- This is done repeatedly until the last memory location in the series is processed

Indexed addressing.

OP – CODE OPERAND

Index Register

Data 1 Data 2 Data 3 Data 4

Chapter 4: PROGRAMMING LANGUAGES.

Question 1. Program and level of language?

Program is group of constructions that is linked together to perform specific task. It’s

necessary for a computer program to be written in a “PL” because at a computer program is

created by a programing using a sys analyst’s specification of the job in the hand.