Expression usage in scatter files

Expressions can be used in the following places:

• Load and execution region base_address.
• Load and execution region +offset.
• Load and execution region max_size.
• Parameter for the ALIGN, FILL or PADVALUE keywords.
• Parameter for the ScatterAssert function.

Example of specifying the maximum size in terms of an expression

LR1 0x8000 (2 * 1024)
{
    ER1 +0 (1 * 1024)
    {
        *(+RO)
    }
    ER2 +0 (1 * 1024)
    {
        *(+RW,+ZI)
    }
}