setjmp on a signal

[Erwin Dondorp I84]

Hello all, I've got a problem (again)

I want to change the program counter of my program on an interrupt,
I used setjmp and even assembly to achieve this but when one does not
return from a signal, any further signal of that type will be ignored.
Is there a way so that a program works normal if one does NOT
return from a signal interrupt handler?

Thanks, Erwin