How to do this by looking only at the hexadecimal values of an address?
How to do this by looking only at the hexadecimal values of an address?
See the opcodes of each instruction in the 80x86 instruction-set. There is a table mapping each statement with its Hexa opcode. When identifying the OpCode see what instruction in assembly corresponds to it.
The biggest problem is whether what you're looking at in a binary is a statement or an operand or an operator or a die in the Data Segment. You'll only succeed if you're sure what you're looking at is really OpCode.
You need a disassembler . Trying to do at hand is hard work, risky and problematic, and you need a book to explain. Have an online .