How to loop infinitely over a block of code in Assembly?
We can loop infinitely over a block of code in assembly using a label and an unconditional jump: Usually we don’t want an infinite loop in our code. So we put a conditional jump inside the loop that jumps to a label after the loop ends. Let’s have a look at an example.
Is it possible to write a nested loop in Assembly?
Sure, it's possible. Since every computer program eventually boils down to assembly - it is naturally the most powerful language possible (excluding direct bit manipulation). The actual code depends on your system, compiler and applied optimizations, but basically it should be something like this (example for 2 nested loops, not 3):
What is a loop instruction?
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. When the above code is compiled and executed, it produces the following result −
You can make a loop like this: mov ecx,12
your_label:
; your code
loop your_label
The loop instruction decrements ecx and jumps to the specified...Best answer · 4
You determined that you need a for loop to achieve your goal, so maybe the C implementation of the for loop, in assembly, will help you: Code Gener...1
.model small
.stack 100h
.data
msg db 'Enter height of the square form 1-9: $'
hash db '#$'
height db 1
length db 0
ctr dw 0
msga...0
Loop transformation technique
Loop unrollingAlso known as loop unwinding
Is a loop transformation technique that attempts to optimize a program's execution speed at the expense of its binary size
Which is an approach known as space–time tradeoff.The transformation can be undertaken manually by the programmer or by an optimizing compiler.On modern processors
Loop unrolling is often counterproductive
As the increased code size can cause more cache misses; cf. Duff's device.
