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45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdint.h>
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#include <realmode.h>
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#include <bios.h>
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#include <basemem.h>
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#include <gpxe/hidemem.h>
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/** @file
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*
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* Base memory allocation
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*
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*/
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/**
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* Set the BIOS free base memory counter
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*
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* @v new_fbms New free base memory counter (in kB)
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*/
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void set_fbms ( unsigned int new_fbms ) {
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uint16_t fbms = new_fbms;
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/* Update the BIOS memory counter */
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put_real ( fbms, BDA_SEG, BDA_FBMS );
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/* Update our hidden memory region map */
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hide_basemem();
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}
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