Assembly language notes-label, name and programming framework

• General format of instructions

• The instruction generally consists of two parts, namely the opcode and the operand. The opcode includes the instruction prefix (0-4 bytes) and the opcode (1-3 bytes), and the operand includes mod (0/1 Bytes), SIB (0/1 byte), displacement (0/1/2/4 bytes), immediate data (0/1/2/4 bytes). Among them, the instruction prefix to the immediate data is the low byte to the high byte.

• The difference between label and name

• Label	first name
  Executive statement	Descriptive statement
  Separated by colon	Separated by spaces or tabs
  Indicates the logical address of the processor instruction in main memory	Variable name, short-lived, subroutine name
  Indicates the destination address of the branch, loop, etc. program	Reflect the logical addresses of variables, segments and subroutines, etc.

• Delimiter
• 1. Colon after label
  2. Semicolon before comment
  3. Comma between operands and parameters
  4. Separate other parts using

Label: Hard instruction mnemonic operand, operand
Name: pseudo instruction mnemonic parameter, parameter

• MASM programming framework
• 
  io32.inc the include
  .data
  ......; data defining
  .code
  ......; program instructions
  Start: ......
  Exit 0 (execution end)
  ......
  End Start (End compilation)
• Note: The execution is terminated! = End of assembly
• Write at the end

• This blog seems to be recording assembly language notes. In fact, all the formats you can see in this note are written in html. Although the writing is a bit slow, the advantage of this is that I am writing in html. At the time, I will forget some of the things I learned before. Through this learning, I can become more proficient in html applications. Come on, I wish you all become stronger.