17. Defines created by the compiler.

The compiler creates the following #defines .

• SDCC - this Symbol is always defined.
• SDCC_STACK_AUTO - this symbol is defined when --stack-auto option is used.
• SDCC_MODEL_SMALL - when small model is used.
• SDCC_MODEL_LARGE - when --model-large is used.
• SDCC_USE_XSTACK - when --xstack option is used.