psl.h revision 719
14Srgrimes/*- 24Srgrimes * Copyright (c) 1990 The Regents of the University of California. 34Srgrimes * All rights reserved. 44Srgrimes * 54Srgrimes * This code is derived from software contributed to Berkeley by 64Srgrimes * William Jolitz. 74Srgrimes * 84Srgrimes * Redistribution and use in source and binary forms, with or without 94Srgrimes * modification, are permitted provided that the following conditions 104Srgrimes * are met: 114Srgrimes * 1. Redistributions of source code must retain the above copyright 124Srgrimes * notice, this list of conditions and the following disclaimer. 134Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 144Srgrimes * notice, this list of conditions and the following disclaimer in the 154Srgrimes * documentation and/or other materials provided with the distribution. 164Srgrimes * 3. All advertising materials mentioning features or use of this software 174Srgrimes * must display the following acknowledgement: 184Srgrimes * This product includes software developed by the University of 194Srgrimes * California, Berkeley and its contributors. 204Srgrimes * 4. Neither the name of the University nor the names of its contributors 214Srgrimes * may be used to endorse or promote products derived from this software 224Srgrimes * without specific prior written permission. 234Srgrimes * 244Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 254Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 264Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 274Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 284Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 294Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 304Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 314Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 324Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 334Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 344Srgrimes * SUCH DAMAGE. 354Srgrimes * 36621Srgrimes * from: @(#)psl.h 5.2 (Berkeley) 1/18/91 37719Swollman * $Id: psl.h,v 1.2 1993/10/16 14:39:26 rgrimes Exp $ 384Srgrimes */ 394Srgrimes 40719Swollman#ifndef _MACHINE_PSL_H_ 41719Swollman#define _MACHINE_PSL_H_ 1 42719Swollman 434Srgrimes/* 444Srgrimes * 386 processor status longword. 454Srgrimes */ 464Srgrimes#define PSL_C 0x00000001 /* carry bit */ 474Srgrimes#define PSL_PF 0x00000004 /* parity bit */ 484Srgrimes#define PSL_AF 0x00000010 /* bcd carry bit */ 494Srgrimes#define PSL_Z 0x00000040 /* zero bit */ 504Srgrimes#define PSL_N 0x00000080 /* negative bit */ 514Srgrimes#define PSL_T 0x00000100 /* trace enable bit */ 524Srgrimes#define PSL_I 0x00000200 /* interrupt enable bit */ 534Srgrimes#define PSL_D 0x00000400 /* string instruction direction bit */ 544Srgrimes#define PSL_V 0x00000800 /* overflow bit */ 554Srgrimes#define PSL_IOPL 0x00003000 /* i/o priviledge level enable */ 564Srgrimes#define PSL_NT 0x00004000 /* nested task bit */ 574Srgrimes#define PSL_RF 0x00010000 /* restart flag bit */ 584Srgrimes#define PSL_VM 0x00020000 /* virtual 8086 mode bit */ 594Srgrimes 604Srgrimes#define PSL_MBZ 0xfffc7fb7 /* must be zero bits */ 614Srgrimes#define PSL_MBO 0x00000002 /* must be one bits */ 624Srgrimes 634Srgrimes#define PSL_USERSET (PSL_IOPL) 644Srgrimes#define PSL_USERCLR (PSL_I|PSL_NT) 65719Swollman#endif /* _MACHINE_PSL_H_ */ 66