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Annotation of qemu/roms/SLOF/clients/net-snk/app/biosemu/biosemu.h, revision 1.1.1.1

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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