Defines starting with `e' in bsd/i386

• EAX bsd/i386/reg.h:43
• ECX bsd/i386/reg.h:42
• EDX bsd/i386/reg.h:41
• EFL bsd/i386/reg.h:45
• EFL_ALLCC bsd/i386/psl.h:38
• EFL_USERCLR bsd/i386/psl.h:47
• EFL_USERSET bsd/i386/psl.h:46
• EIP bsd/i386/reg.h:44
• ESP bsd/i386/reg.h:46