current_addr     3169 gc/os_dep.c        ptr_t current_addr, limit;
current_addr     3216 gc/os_dep.c    	    for (current_addr = vaddr;
current_addr     3217 gc/os_dep.c    	         current_addr < limit; current_addr += ps){
current_addr     3219 gc/os_dep.c    	            register struct hblk * h = (struct hblk *) current_addr;
current_addr     3221 gc/os_dep.c    	            while ((ptr_t)h < current_addr + ps) {