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Diffstat (limited to 'i386/include/mach/i386/eflags.h')
-rw-r--r-- | i386/include/mach/i386/eflags.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/i386/include/mach/i386/eflags.h b/i386/include/mach/i386/eflags.h new file mode 100644 index 0000000..d7d54b2 --- /dev/null +++ b/i386/include/mach/i386/eflags.h @@ -0,0 +1,49 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ + +#ifndef _MACH_I386_EFLAGS_H_ +#define _MACH_I386_EFLAGS_H_ + +/* + * i386 flags register + */ +#define EFL_CF 0x00000001 /* carry */ +#define EFL_PF 0x00000004 /* parity of low 8 bits */ +#define EFL_AF 0x00000010 /* carry out of bit 3 */ +#define EFL_ZF 0x00000040 /* zero */ +#define EFL_SF 0x00000080 /* sign */ +#define EFL_TF 0x00000100 /* trace trap */ +#define EFL_IF 0x00000200 /* interrupt enable */ +#define EFL_DF 0x00000400 /* direction */ +#define EFL_OF 0x00000800 /* overflow */ +#define EFL_IOPL 0x00003000 /* IO privilege level: */ +#define EFL_IOPL_KERNEL 0x00000000 /* kernel */ +#define EFL_IOPL_USER 0x00003000 /* user */ +#define EFL_NT 0x00004000 /* nested task */ +#define EFL_RF 0x00010000 /* resume without tracing */ +#define EFL_VM 0x00020000 /* virtual 8086 mode */ + +#endif _MACH_I386_EFLAGS_H_ |