How can I start different programs from flash.

I changed the static asm call to

void (*pBoot)(void); // declare function pointer

int startadd; // declare startaddress as integer

..

..

startadd=0x200000;

pBoot=(void*)startadd;

pBoot(); // jump to new altera bootloader in flash

and this seems to work.

hope to get some more opinions or better solutions for updating software.