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Annotation of XNU/osfmk/i386/AT386/cram.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /*
        !            26:  * HISTORY
        !            27:  * 
        !            28:  * Revision 1.1.1.1  1998/09/22 21:05:38  wsanchez
        !            29:  * Import of Mac OS X kernel (~semeria)
        !            30:  *
        !            31:  * Revision 1.1.1.1  1998/03/07 02:25:39  wsanchez
        !            32:  * Import of OSF Mach kernel (~mburg)
        !            33:  *
        !            34:  * Revision 1.1.6.1  1994/09/23  01:33:48  ezf
        !            35:  *     change marker to not FREE
        !            36:  *     [1994/09/22  21:16:06  ezf]
        !            37:  *
        !            38:  * Revision 1.1.2.2  1993/06/02  23:19:06  jeffc
        !            39:  *     Added to OSF/1 R1.3 from NMK15.0.
        !            40:  *     [1993/06/02  21:01:43  jeffc]
        !            41:  * 
        !            42:  * Revision 1.1  1992/09/30  02:26:37  robert
        !            43:  *     Initial revision
        !            44:  * 
        !            45:  * $EndLog$
        !            46:  */
        !            47: /* CMU_HIST */
        !            48: /*
        !            49:  * Revision 2.5  91/05/14  16:22:13  mrt
        !            50:  *     Correcting copyright
        !            51:  * 
        !            52:  * Revision 2.4  91/02/05  17:16:50  mrt
        !            53:  *     Changed to new Mach copyright
        !            54:  *     [91/02/01  17:42:45  mrt]
        !            55:  * 
        !            56:  * Revision 2.3  90/11/26  14:49:30  rvb
        !            57:  *     jsb bet me to XMK34, sigh ...
        !            58:  *     [90/11/26            rvb]
        !            59:  *     Synched 2.5 & 3.0 at I386q (r1.5.1.3) & XMK35 (r2.3)
        !            60:  *     [90/11/15            rvb]
        !            61:  * 
        !            62:  * Revision 2.2  90/05/03  15:41:48  dbg
        !            63:  *     First checkin.
        !            64:  * 
        !            65:  * Revision 1.5.1.2  90/02/28  15:49:23  rvb
        !            66:  *     Fix numerous typo's in Olivetti disclaimer.
        !            67:  *     [90/02/28            rvb]
        !            68:  * 
        !            69:  * Revision 1.5.1.1  90/01/08  13:31:57  rvb
        !            70:  *     Add Olivetti copyright.
        !            71:  *     [90/01/08            rvb]
        !            72:  * 
        !            73:  * Revision 1.5  89/09/25  12:26:32  rvb
        !            74:  *     File was provided by Intel 9/18/89.
        !            75:  *     [89/09/23            rvb]
        !            76:  * 
        !            77:  */
        !            78: /* CMU_ENDHIST */
        !            79: /* 
        !            80:  * Mach Operating System
        !            81:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
        !            82:  * All Rights Reserved.
        !            83:  * 
        !            84:  * Permission to use, copy, modify and distribute this software and its
        !            85:  * documentation is hereby granted, provided that both the copyright
        !            86:  * notice and this permission notice appear in all copies of the
        !            87:  * software, derivative works or modified versions, and any portions
        !            88:  * thereof, and that both notices appear in supporting documentation.
        !            89:  * 
        !            90:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            91:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            92:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            93:  * 
        !            94:  * Carnegie Mellon requests users of this software to return to
        !            95:  * 
        !            96:  *  Software Distribution Coordinator  or  [email protected]
        !            97:  *  School of Computer Science
        !            98:  *  Carnegie Mellon University
        !            99:  *  Pittsburgh PA 15213-3890
        !           100:  * 
        !           101:  * any improvements or extensions that they make and grant Carnegie Mellon
        !           102:  * the rights to redistribute these changes.
        !           103:  */
        !           104: /* 
        !           105:  */
        !           106: 
        !           107: /*
        !           108:  * cram.h
        !           109:  */
        !           110: 
        !           111: /*
        !           112:  * Copyright 1988, 1989 by Olivetti Advanced Technology Center, Inc.,
        !           113:  * Cupertino, California.
        !           114:  * 
        !           115:  *             All Rights Reserved
        !           116:  * 
        !           117:  * Permission to use, copy, modify, and distribute this software and
        !           118:  * its documentation for any purpose and without fee is hereby
        !           119:  * granted, provided that the above copyright notice appears in all
        !           120:  * copies and that both the copyright notice and this permission notice
        !           121:  * appear in supporting documentation, and that the name of Olivetti
        !           122:  * not be used in advertising or publicity pertaining to distribution
        !           123:  * of the software without specific, written prior permission.
        !           124:  * 
        !           125:  * OLIVETTI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
        !           126:  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
        !           127:  * IN NO EVENT SHALL OLIVETTI BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
        !           128:  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
        !           129:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
        !           130:  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION
        !           131:  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !           132:  * 
        !           133:  */
        !           134: 
        !           135: /* 
        !           136:  * outb(CMOS_ADDR, addr);
        !           137:  * result = inb(CMOS_DATA);
        !           138:  * 
        !           139:  * where "addr" tells what value you want to read (some are listed 
        !           140:  * below).  Interrupts should be disabled while you do this.
        !           141:  */
        !           142: 
        !           143: /* I/O ports */
        !           144: 
        !           145: #define CMOS_ADDR      0x70            /* port for CMOS ram address */
        !           146: #define CMOS_DATA      0x71            /* port for CMOS ram data */
        !           147: 
        !           148: 
        !           149: /* Addresses, related masks, and potential results */
        !           150: 
        !           151: #define CMOS_EB                0x14            /* read Equipment Byte */
        !           152: #define CM_SCRMSK      0x30            /* mask for EB query to get screen */
        !           153: #define CM_EGA_VGA     0x00            /* "not CGA or MONO" */
        !           154: #define CM_CGA_40      0x10
        !           155: #define CM_CGA_80      0x20
        !           156: #define CM_MONO_80     0x30
        !           157: 

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