Assembly Language Statements

The three types of assembly language statements are:

• Machine instructions
• Macro calls
• Assembler directives

Instructions, directives, and macro names are case insensitive: the assembler considers LWZ, Lwz, and lwz to be the same instruction

Remember these rules for assembly language statements:

1. The maximum length of a statement or an expanded macro is 512 characters.
2. A statement must reside on a single line. However, you can concatenate two or more lines by typing a backslash (\) character at the end of the line.
3. Each line of the source file can contain only one statement unless the assembler is running in GNU mode. (This mode allows multiple statements on one line, with semicolon separators.)