tcic_log2
size2 = tcic_log2((u_int)size);
size2 = tcic_log2((u_int)h->io[win].size);
i = tcic_log2((u_int)size);
h->mem[win].size2 = tcic_log2((u_int)pcmhp->realsize) - TCIC_MEM_SHIFT;
int tcic_log2(u_int);
sc->memsize2 = tcic_log2((u_int)ia->ia_msize);