ABL electronic PIC12 Benutzerhandbuch

mikroC uses internal algorithm to distribute objects within memory. If you need to
have variable or routine at specific predefined address, use linker directives

absolute

and 

org

.

Directive absolute specifies the starting address in RAM for variable. If variable is
multi-byte, higher bytes are stored at consecutive locations. Directive absolute is
appended to the declaration of variable:

foo absolute 0x23;

// Variable will occupy 2 bytes at addresses 0x23 and 0x24;

Be careful when using absolute directive, as you may overlap two variables by
mistake. For example:

i absolute 0x33;

// Variable i will occupy 1 byte at address 0x33

jjjj absolute 0x30;

// Variable will occupy 4 bytes at 0x30, 0x31, 0x32, 0x33,
// so changing i changes jjjj highest byte at the same time

Directive 

org

specifies the starting address of routine in ROM.

Directive 

org

is appended to the function definition. Directives applied to non-

defining declarations will be ignored, with an appropriate warning issued by link-
er. Directive 

org

cannot be applied to an interrupt routine.

Here is a simple example:

func(char par) org 0x200 {

// Function will start at address 0x200

nop;

}

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mikroC - C Compiler for Microchip PIC microcontrollers

mikroC

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