x86 can be tedious to learn for any number of reasons:

• no two registers are the same.
• not all instructions work with all registers.
• Some branch instructions have a very short range, so you may see branch to branch instructions
• The number of different address modes can be surprising.

To illustrate with examples:

• You can’t add two immediate constants together, even though you can in C. ...
• You can add two 32-bit registers in one instruction, but you can’t add three 32-bit registers – you’d need to break it up into two instructions.
• You can’t add a 16-bit register to a 32-bit register. ...

More items...

Setting Up

• Use numbered steps.NOTE: Do not use lettered steps or bullets!
• Use statements like NOTE (see above) to interject important information that is not a step and is not the result of a step.NOTE: NEVER begin a step by saying “Now” ...
• Begin each step with an action verb.
• Put only one action in each step. ...