Mikroelektronika MIKROE-738 Datenbogen

140

mikoC PRO for PIC32

MikroElektronika

at keyword

You can use the keyword "at" to make an alias to a variable, for example, you can write a library without using register 

names, and later in the main program to define those registers, for example:

extern char PORTAlias; // here in the library we can use its symbolic name

char PORTAlias at PORTB; // this is where PORTAlias is fully defined

...

void main() {  

...

}

Note: Bear in mind that when using 

at

 operator in your code over a variable defined through the 

extern

 modifier, 

appropriate memory specifer must be appended also. 

bit type

The mikroC PRO for PIC32 compiler provides a 

bit

 data type that may be used for variable declarations. It can not be 

used for argument lists, and function-return values.

bit bf;    // bit variable

There are no pointers to bit variables:

bit *ptr;    // invalid

An array of type bit is not valid:

bit arr [5];     // invalid

Note: 

- Bit variables can not be initialized. 

- Bit variables can not be members of structures and unions. 

- Bit variables do not have addresses, therefore unary operator 

&

 (address of) is not applicable to these variables. 

Related topics: Bit fields, Predefined globals and constants, Extern modifier