Program Flow and control is a control method of your program. For example Loop constructions control repeated execution of repeated program segments where control is taken by control parameter. In this article we will go through if/else switch/case statements and loop sentences like while, do while, for. While statement As I mentioned three looping sentences available in C language one of them is While sentence. Lets take an example: #include <stdio.h> int main(void) { int guess, i; i=1; guess=5; while (guess!=i) { i=guess; guess=(i+(10000/i))/2; } printf(“Square root of 10000 is %d\n”, guess); return 0; } While(guess!=i) invokes looping operation. This causes statement to be executed repeatedly at the beginning the condition guess!=i is checked. As long the argument is TRUE the while sentence will be continued continuously. When guess becomes equal to i while statement will be skipped. I am not going to deep in to it as there are…

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ASM is a specific language also referred as low level programming language. It is a mnemonics to a machine codes. It usually takes long time to develop embedded programs in ASM language. Today even modern 8 bit microcontrollers are powerful and complex as they were long time ago. The program memory of tiny chips are reaching megabytes, they pack lots of peripherals and interfaces. Hardware code is becoming more complex, functionality grows up. This is one of the main reasons of using higher level programming languages like C. By using C language you do not have to go into details how processor works at hardware level. You don’t have to think about hardware logic how bytes are shifted between registers. It is better to leave t Another advantage of C language against ASM is portability. If you work with embedded system architecture and decide to move to other, and your…

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