Macros in osfmk/i386/AT386

• high_mem_page osfmk/i386/AT386/himem.h:112
• load_rtc osfmk/i386/AT386/rtc.h:204
• LOCK_BBC osfmk/i386/AT386/bbclock.c:72
• save_rtc osfmk/i386/AT386/rtc.h:217
• UNLOCK_BBC osfmk/i386/AT386/bbclock.c:73