Hi every body.
I use C51 of Franklin software V3.20. Here is my code:

void ex0isr(void)interrupt 0
{
quay_so(0);
}

void ex1isr(void)
{
quay_so(1);
}

void quay_so(char i)interrupt 2
{
...
}

Tow interrupt service routine have the same priority. I don't know why the linker (Franklin Software Linker V2.8) warning Multiple Call Segment. Please give me the reason.