Assembly Loops
The JMP instruction can be used for implementing loops. For example, the following code snippet can be used for executing the loop-body 10 times.
The processor instruction set however includes a group of loop instructions for implementing iteration. The basic LOOP instruction has the following syntax:
Where, label is the target label that identifies the target instruction as in the jump instructions. The LOOP instruction assumes that the ECX register contains the loop count. When the loop instruction is executed, the ECX register is decremented and the control jumps to the target label, until the ECX register value, i.e., the counter reaches the value zero.
The above code snippet could be written as:
Example:
The following program prints the number 1 to 9 on the screen:
