Operation Field

The entries in the operation field may be one the following types:

• Opcode - instructions for the Freescale DSP processor.
• Directive - a special code that controls the assembly process.
• Macro call - invocation of a previously defined macro.

The assembler first searches for a macro with the same name as the operation specified in this field. Then the assembler searches the instruction set and lastly the assembler directives. Therefore, macro names can replace machine instructions. Be careful not to name macros after instruction names unknowingly. You can use the REDIRECT directive to change this default behavior.