Macros starting with `r' in 386bsd-0.0

• RCVBYTE arch/i386/isa/com.c:303
• RELEASE_PAGE vm/vm_fault.c:128
• resettodr arch/i386/include/cpu.h:74
• RETURN vm/vm_map.c:2138
• ROTATE_BUFFERS net/bpf.c:321
• ROUNDUP net/if.c:136
• RTA netinet/ip_input.c:1009