topic Re: indirect call in CodeWarrior for MCU

indirect call

Eric_t — Mon, 07 Nov 2011 19:07:04 GMT

Hi, everybody

I have to make an indirect call or jump but i do not know how to do it.

For example i have to make the following jump or call:

Address FE00: CA 00 54 78 53 FA ....

I have to make a jump or call at the address which

contained in address FE00 (jump to CA00 address).

Can anyone tell me how can i do it in assemby or C?

I am using the mc9s12dg256 controller and codewarrior v3.1.

Thanks

Nikos

kef — Mon, 07 Nov 2011 20:16:12 GMT

asm:

asm{

LDX 0xFE00

JMP 0,X

}

typedef void (** near pfptr)(void);

{

(*((pfptr)(void*)0xFE00))(); // jump to subroutine, whose 16bit address is stored at 0xFE00

}

Eric_t — Mon, 07 Nov 2011 21:34:48 GMT

Thank you for your help, kef