149614Sbostic /*- 2*63359Sbostic * Copyright (c) 1991, 1993 3*63359Sbostic * The Regents of the University of California. All rights reserved. 449614Sbostic * 549614Sbostic * %sccs.include.redist.c% 649614Sbostic * 7*63359Sbostic * @(#)specialreg.h 8.1 (Berkeley) 06/11/93 849614Sbostic */ 949614Sbostic 1045962Swilliam /* 1145962Swilliam * 386 Special registers: 1245962Swilliam */ 1345962Swilliam 1445962Swilliam #define CR0_PE 0x00000001 /* Protected mode Enable */ 1545962Swilliam #define CR0_MP 0x00000002 /* "Math" Present (e.g. npx), wait for it */ 1645962Swilliam #define CR0_EM 0x00000004 /* EMulate NPX, e.g. trap, don't execute code */ 1745962Swilliam #define CR0_TS 0x00000008 /* Process has done Task Switch, do NPX save */ 1845962Swilliam #define CR0_ET 0x00000010 /* 32 bit (if set) vs 16 bit (387 vs 287) */ 1945962Swilliam #define CR0_PG 0x80000000 /* Paging Enable */ 20