Perform Linear Search in 8085 Microprocessor

Here we will see how to perform the linear search in 8085 microprocessor. The linear search is searching elements sequentially from start to end position.

Problem Statement −

Write an 8085 Assembly language program to search a key value in a block of data using linear search (sequential search) technique.

Discussion

Suppose the data are stored at location 8002H to 8007H. The 8000H is containing the size of the block, and 8001H is holding the key value to search. When we execute the program, it will return the address of the data where the item is found and store the address at location 9000H and 9001H. If the item is not found, it will return FFFFH.

f the data is present in the memory at FFFFH, then also it will store FFFFH, so it is ambiguous condition. We are assuming that the data are not stored at FFFFH, so we have chosen that value to indicate the data is not present.

Input

Flow Diagram−

Program

Output