Convert 8-bit BCD Number to ASCII Code in 8085

Now let us see a program of Intel 8085 Microprocessor. This program will convert 8-bit BCDnumbers to two digit ASCII values.

Problem Statement

Write 8085 Assembly language program where an 8-bit BCD number is stored in memory location 8050H. Separate each BCD digit and convert it to corresponding ASCII code and store it to the memory location 8060H and 8061H.

Discussion

In this problem we are using a subroutine to convert one BCD digit(nibble) to its equivalent ASCII values. As the 8-bit BCD number contains two nibbles, so we can execute this subroutine to find ASCIIvalues of them. We can get the lower nibble very easily by masking the upper nibble, and for the upper nibble, we have to mask the lower nibble at first, then rotate the register content dour times to the right to make, now we can change it to ASCII values.

Here we will put 26H as input, the program will return 32 and 36. These are the ASCII values of 2 and 6 respectively.

Note: This program can also take 8-bit binary number to ASCII values.

Input

Flow Diagram

Program

Output