Assembly - Grammar (Syntax)

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Code - Grammar / Syntax (Lexical) in Assembly.

An Assembly language script is the input expected by an assembler (compiler). The assembler defines then the precise syntax of an assembler script.

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Syntax

Every assembler shares a common set of syntax rule that comes from one of this two syntax:

• the Intel syntax (asm386),
• and the AT&T syntax.

The syntax is assembler dependent and have the following components:

• Assembly - Label
• Assembly - Instruction
• Assembly - Section
• Assembly - (Pseudo|Synthetic) Instruction
• assembler directives

Example:

• for nasm. See Nasm syntax - Intel Syntax
• for masm. See Masm syntax - Intel Syntax
• for gas. See Gas syntax - AT&T syntax
• wiki/MACRO-10
• …

Script example:

Label1:
        mov ax, bx
        add ax, bx
        jmp Label3
Label2:
        mov ax, cx
...