Similarities and differences between imperative sentences and imperative sentences

1, mandatory statement is 8086 instruction, for example, addition instruction and MOV instruction are mandatory statements. Instruction statements are also called pseudo-instructions, such as DB, SEGMENT, etc.

2. In the assembly process, imperative statements will produce corresponding object codes, while pseudo-instructions will not produce executable object codes, but only provide some information for the assembler. For example, the pseudo instruction can specify the starting position of the program data segment and the size of the stack area.

3. The label is also used in indicative statements, but it has no colon; In imperative sentences, there must be a colon after the label, which is the formal difference between the two.