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Diffstat (limited to 'sys/amd64/include/psl.h')
| -rw-r--r-- | sys/amd64/include/psl.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sys/amd64/include/psl.h b/sys/amd64/include/psl.h new file mode 100644 index 0000000..aee73ed --- /dev/null +++ b/sys/amd64/include/psl.h @@ -0,0 +1,60 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)psl.h 5.2 (Berkeley) 1/18/91 + */ + +/* + * 386 processor status longword. + */ +#define PSL_C 0x00000001 /* carry bit */ +#define PSL_PF 0x00000004 /* parity bit */ +#define PSL_AF 0x00000010 /* bcd carry bit */ +#define PSL_Z 0x00000040 /* zero bit */ +#define PSL_N 0x00000080 /* negative bit */ +#define PSL_T 0x00000100 /* trace enable bit */ +#define PSL_I 0x00000200 /* interrupt enable bit */ +#define PSL_D 0x00000400 /* string instruction direction bit */ +#define PSL_V 0x00000800 /* overflow bit */ +#define PSL_IOPL 0x00003000 /* i/o priviledge level enable */ +#define PSL_NT 0x00004000 /* nested task bit */ +#define PSL_RF 0x00010000 /* restart flag bit */ +#define PSL_VM 0x00020000 /* virtual 8086 mode bit */ + +#define PSL_MBZ 0xfffc7fb7 /* must be zero bits */ +#define PSL_MBO 0x00000002 /* must be one bits */ + +#define PSL_USERSET (PSL_IOPL) +#define PSL_USERCLR (PSL_I|PSL_NT) |
