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Microprocessor Articles
Page 21 of 42
8085 Program to do an operation on two numbers based on the contents of X
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to do different operations based on choice.Problem Statement:Write 8085 Assembly language program to perform some operations on two 8-bit binary numbers base on choice.Discussion:In this program we are taking a choice. The choice value is stored at memory location 8000H (named as X). And the numbers are stored at location 8001H and 8002H. We are storing the result at location 8050H and 8051H.Here if the choice is 00H, then it will perform addition, for 01H, it will perform subtraction, and for 02H, it ...
Read More8085 Program to do an operation on two BCD numbers based on the contents of X
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to do different operations on BCD numbers based on choice.Problem Statement:Write 8085 Assembly language program to perform some operations on two 8-bit BCD numbers base on choice.Discussion:In this program we are taking a choice. The choice value is stored at memory location 8000H (named as X). And the BCD numbers are stored at location 8001H and 8002H. We are storing the result at location 8050H and 8051H.Here if the choice is 00H, then it will perform addition, for 01H, it will perform subtraction, ...
Read Morea 8085 Program to perform bubble sort based on choice
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to perform bubble sort in based on choice.Problem Statement:Write 8085 Assembly language program to perform bubble sorting operation on a set of data, and arrange them into ascending or descending order based on choice.Discussion:In this program we are arranging some numbers into ascending or descending order based on some choice. We are storing the choice at location A000H. If the choice value is 00H, then data will be sorted in ascending order, otherwise it will be sorted in descending order. The 8000H is ...
Read More8085 Program to perform selection sort in ascending order
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to sort a sequence of numbers using selection sort.Problem Statement:Write 8085 Assembly language program to sort a given sequence using selection sort in ascending order. The numbers are stored at 8001H onwards. 8000H is holding the block size.Discussion:In the selection sorting technique, we will choose the minimum or the maximum term from a set of numbers. In this case we are considering the sorting in ascending order, so we are choosing the minimum number. By taking the minimum number, we are swapping it ...
Read More8085 Program to perform selection sort in descending order
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to sort a sequence of numbers in reverse order using selection sort.Problem Statement:Write 8085 Assembly language program to sort a given sequence using selection sort in descending order. The numbers are stored at 8001H onwards. 8000H is holding the block size.Discussion:In the selection sorting technique, we will choose the minimum or the maximum term from a set of numbers. In this case we are considering the sorting in descending order, so we are choosing the maximum number. By taking the maximum number, we ...
Read More8085 Program to add the contents of N word locations
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to add the contents of N word locations.Problem Statement:Write 8085 Assembly language program to add N 16-bit numbers stored into memoryDiscussion:The 16-bit numbers are stored into memory location 8001H onwards. The value of N is stored at location 8000H. After addition, the result will be stored at location 8050H onwards.In 8085 we have few number of registers. So we are storing the count into memory, when we need to update it, we will fetch it from memory, update it and then again store ...
Read More8085 Program to multiply two 8-bit numbers (shift and add method)
Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to multiply two numbers using shift and add methods.Problem Statement:Write 8085 Assembly language program to multiply two 8-bit numbers using shift and add method.Discussion:The shift and add method is an efficient process. In this program, we are taking the numbers from memory location 8000H and 8001H. The 16 bit results are storing into location 8050H onwards.In this method we are putting the first number into DE register pair. The actual number is placed at E register, and D is holding 00H. The second ...
Read MoreRead and Write the stack in 8085 Microprocessor
Reading from the StackLet us consider that SP contents the address FC78H, and we want to read information from a stack location. In this case, we are not interested in reading from a location whose address is less than the memory address present in SP. This is because 8085 interprets them as useless information. For example, there is no point in reading useless information from memory location FC75H.SP interprets that, memory locations FC78H, FC79H, ..., FFFFH are all interpreted by 8085 to have useful information. To read from Stack, the instruction is POP in 8085 microprocessor instruction set. Here we ...
Read MoreDifference between call and jump instructions in 8085 Microprocessor
The main differences between a JMP instruction and a CALL instruction is as follows –If a JMP instruction is executed, we jump to the destination location, and the execution carries on from there, without bothering to come back later to the instruction after the JMP. On the other hand, if a CALL instruction is executed, we jump to the subroutine, and the execution carries on from there till the RET instruction is executed in the subroutine, and then we come back to the instruction after the CALL in the main program.The address of the next instruction after the CALL instruction ...
Read MoreCreation of .ASM file using a text editor
The program written in assembly language is entered by us by the help of any editor, we prefer a screen editor because when we enter the program it is of no importance for the particular exact column label of instructions and the starting of the program. But the point to be noted that the instruction must start after column 1. More over the aligned program must be lucidly written for reading if its various fields should be assigned properly. There are many features which the editor provides like many help features which the user gets to be more familiar by ...
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