A three-digit input converted to integer

[AlitaMixx]

Here's the problem, I was wondering if i am right to assume that when a three-digit input is entered, i.e. 123, then the string 1 will be stored to al, 2 to ah, but i'm not sure where the 3 goes, or if ever it's plain wrong to look at the problem that way. Here's my plan, ask for 3-digit number, access the digits separately, convert to integer, manipulate the digits separately, then check if greater than 100, 175, and so so.

[zeroliken]

In my opinion you need to use 3 different variables and store each digit in a separate variable, next convert each digit to an integer, multiply the first digit by 100, the second digit by 10 and add all digits together and save to a variable to get a 3 digit number.

With this you only need to compare one variable for the rest of the operations

[AlitaMixx]

I see, so it's impossible then to convert a single 3-digit input to integer? Thanks.

[zeroliken]

I see, so it's impossible then to convert a single 3-digit input to integer?

you can convert at any length if it's in a single variable, I've been taught that using nasm when you input a 3 or more digit number in a terminal you need to store the digits in separate variables for better manipulation in the program

[AlitaMixx]

That was really helpful. Thank you.

[GunnerInc]

You don't need many buffers. You have one buffer for your input right? That is all you need. Write a conversion function (or find one on the net, but you will better yourself writing it on your own) that takes a pointer to your input buffer, and goes thourgh each character in your buffer, converts them all and returns the integer in eax.