what is assembly

Answer 1

Assembly Language is a low level language making use of mnemonic terms like ADD, STR, LDR, MOV32, etc. These may vary but KEIL ARM uses these.

When you compile your C++ code, assembly is what your compiler gives you (obj code) . Programming in assembly allows you to directly manage memory, which is useful if you are hurting for memory and you know of a better implementation than your compiler that is more effective. I believe you will come across Assembly if you're working on console machines like PS4 and XBOX