I am prigramming in assembly Language, x86 in C++ and I need to know the getch equivalent in assembly language instead of C++ language as I dont want to use any function from the C++ programming language. 

I found the code on the web but it saves the given value to a variable and created in C++. I want to use the function only to stop the program until any key is pressed. I dont have to use the entered key value in further programming.