the for loop that you use in programming is basically a implementation of BRANCH <a href="http://instruction.In" class="autolinkedURL autolinkedURL-url" target="_blank">instruction.In</a> this blog we will discuss how this BRANCH instruction works.
In normal program execution,program is extracted from memory and and PC is incremented by 4 and when it encounters BRANCH or CALL instruction PC is incremented by that location value (in case of CALL instruction return address is stored).
By following steps branching works -&gt;
1. MEMORY ADDRESS &lt;- [PC];
 READ MEMORY
 IR&lt;-MEMORY READ
 PC = [PC] + 4
=&gt;Here normal fetch and increment step occurs
2.Decode Instruction;
 RA&lt;-[R5];
 RB&lt;-[R6];
 
=&gt;Here instruction is decoded and intermediate registers are filled with values of register R5 &amp; R6
3. COMPARE [R4] &amp; [R5]
 IF [R4] == [R5] then increment PC = [PC] + OFFSET
=&gt; Check the condition if it is true then branch else continue.
Then no actions needed after this ......

the for loop that you use in programming is basically a implementation of BRANCH instruction.In this blog we will discuss how this BRANCH instruction works.

In normal program execution,program is extracted from memory and and PC is incremented by 4 and when it encounters BRANCH or CALL instruction PC is incremented by that location value (in case of CALL instruction return address is stored).

By following steps branching works ->

**1. MEMORY ADDRESS <- [PC];
 READ MEMORY
 IR<-MEMORY READ
 PC = [PC] + 4**
=>Here normal fetch and increment step occurs

**2.Decode Instruction;
 RA<-[R5];
 RB<-[R6];
 **
=>Here instruction is decoded and intermediate registers are filled with values of register R5 & R6

**3. COMPARE [R4] & [R5]
 IF [R4] == [R5] then increment PC = [PC] + OFFSET**

=> Check the condition if it is true then branch else continue.

Then no actions needed after this ......

How Branching works in low level?