Predefined Globals and Constants
To facilitate programming of 8051 compliant MCUs, the mikroPascal PRO for 8051 implements a number of predefined globals and constants.
All SFRs are implicitly declared as global variables of volatile word type. These identifiers have an external linkage, and are visible in the entire project. When creating a project, the mikroPascal PRO for 8051 will include an appropriate (*.mpas) file from defs folder, containing declarations of available SFRs and constants.
For a complete set of predefined globals and constants, look for “Defs” in the mikroPascal PRO for 8051 installation folder, or probe the Code Assistant for specific letters (Ctrl+Space in the Code Editor).
Predefined project level defines
mikroPascal PRO for 8051 provides several predefined project level defines that you can use in your project :
First one is equal to the name of selected device for the project.
If AT89S8253 is selected device, then AT89S8253 token will be defined as 1, so it can be used for conditional compilation:
{$IFDEF AT89S8253}
...
{$ENDIF}
Other predefined project level defines are :
{$IFDEF 8051}...{$ENDIF}
{$IFDEF ATMEL}...{$ENDIF}
{$IFDEF SILABS}...{$ENDIF}
In some future releases of the compiler, the JTAG redefined project level define will be added also.
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