8086 program to transfer a block of bytes by using string instruction

MicroprocessorMicrocontroller8086

In this program we will see how to transfer a block from one location to another location.

Problem Statement

Write 8086 Assembly language program to transfer a block from one memory section to another memory section. The numbers are stored at memory offset 501 onwards. The block size is stored at memory offset 500.

Discussion

Here we are initially setting up the source index register with the source of data blocks, then set the destination index register to store into another block. Then set the Data segment register and Extra Segment register to 0000H. By using MOVSB instruction, the entire block is transferred from one location to another. We are taking the size of the block, then we have set the counter register (CX) with the size. Until the CX register turns to 0, the data will be transferred.

Input

Address
Data


500
06
501
1A
502
2B
503
3C
504
4D
505
5E
506
6F


 

Flow Diagram

 

Program

Output

Address
Data


600
1A
601
2B
602
3C
603
4D
604
5E
605
6F


raja
Published on 12-Mar-2019 11:43:36
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