141058Swilliam /*- 2*63359Sbostic * Copyright (c) 1990, 1993 3*63359Sbostic * The Regents of the University of California. All rights reserved. 441058Swilliam * 541058Swilliam * This code is derived from software contributed to Berkeley by 641058Swilliam * William Jolitz. 741058Swilliam * 846006Swilliam * %sccs.include.redist.c% 941058Swilliam * 10*63359Sbostic * @(#)psl.h 8.1 (Berkeley) 06/11/93 1141058Swilliam */ 1241058Swilliam 1340464Sbill /* 1440464Sbill * 386 processor status longword. 1540464Sbill */ 1640464Sbill #define PSL_C 0x00000001 /* carry bit */ 1740464Sbill #define PSL_PF 0x00000004 /* parity bit */ 1840464Sbill #define PSL_AF 0x00000010 /* bcd carry bit */ 1940464Sbill #define PSL_Z 0x00000040 /* zero bit */ 2040464Sbill #define PSL_N 0x00000080 /* negative bit */ 2140464Sbill #define PSL_ALLCC 0x000000d5 /* all cc bits - unlikely */ 2240464Sbill #define PSL_T 0x00000100 /* trace enable bit */ 2340464Sbill #define PSL_I 0x00000200 /* interrupt enable bit */ 2440464Sbill #define PSL_D 0x00000400 /* string instruction direction bit */ 2540464Sbill #define PSL_V 0x00000800 /* overflow bit */ 2640464Sbill #define PSL_IOPL 0x00003000 /* i/o priviledge level enable */ 2740464Sbill #define PSL_NT 0x00004000 /* nested task bit */ 2840464Sbill #define PSL_RF 0x00010000 /* restart flag bit */ 2940464Sbill #define PSL_VM 0x00020000 /* virtual 8086 mode bit */ 3040464Sbill 3140464Sbill #define PSL_MBZ 0xfffc7fb7 /* must be zero bits */ 3240464Sbill #define PSL_MBO 0x00000002 /* must be one bits */ 3340464Sbill 3440464Sbill #define PSL_USERSET (PSL_IOPL) 3540464Sbill #define PSL_USERCLR (PSL_I|PSL_NT) 36