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Annotation of qemu/roms/SLOF/clients/net-snk/app/biosemu/biosemu.h, revision 1.1

1.1     ! root        1: /******************************************************************************
        !             2:  * Copyright (c) 2004, 2008 IBM Corporation
        !             3:  * All rights reserved.
        !             4:  * This program and the accompanying materials
        !             5:  * are made available under the terms of the BSD License
        !             6:  * which accompanies this distribution, and is available at
        !             7:  * http://www.opensource.org/licenses/bsd-license.php
        !             8:  *
        !             9:  * Contributors:
        !            10:  *     IBM Corporation - initial implementation
        !            11:  *****************************************************************************/
        !            12: 
        !            13: #ifndef _BIOSEMU_BIOSEMU_H_
        !            14: #define _BIOSEMU_BIOSEMU_H_
        !            15: 
        !            16: #define MIN_REQUIRED_VMEM_SIZE 0x100000        // 1MB
        !            17: 
        !            18: //define default segments for different components
        !            19: #define STACK_SEGMENT 0x1000   //1000:xxxx
        !            20: #define STACK_START_OFFSET 0xfffe
        !            21: 
        !            22: #define DATA_SEGMENT 0x2000
        !            23: #define VBE_SEGMENT 0x3000
        !            24: 
        !            25: #define PMM_CONV_SEGMENT 0x4000        // 4000:xxxx is PMM conventional memory area, extended memory area
        !            26:                                // will be anything beyound MIN_REQUIRED_MEMORY_SIZE
        !            27: #define PNP_DATA_SEGMENT 0x5000
        !            28: 
        !            29: #define OPTION_ROM_CODE_SEGMENT 0xc000
        !            30: 
        !            31: #define BIOS_DATA_SEGMENT 0xF000
        !            32: // both EBDA values are _initial_ values, they may (and will be) changed at runtime by option ROMs!!
        !            33: #define INITIAL_EBDA_SEGMENT 0xF600    // segment of the Extended BIOS Data Area
        !            34: #define INITIAL_EBDA_SIZE 0x400        // size of the EBDA (at least 1KB!! since size is stored in KB!)
        !            35: 
        !            36: #define PMM_INT_NUM 0xFC       // we misuse INT FC for PMM functionality, at the PMM Entry Point
        !            37:                                // Address, there will only be a call to this INT and a RETF
        !            38: #define PNP_INT_NUM 0xFD
        !            39: 
        !            40: #endif

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