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63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* Copyright (C) 2014 René Kijewski <rene.kijewski@fu-berlin.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* Writing to the videoram.
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*
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* @ingroup x86
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* @{
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* @file
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* @author René Kijewski <rene.kijewski@fu-berlin.de>
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*/
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#ifndef CPU__X86__VIDEORAM_H__
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#define CPU__X86__VIDEORAM_H__
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/**
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* @brief Print out a single character on the graphical device.
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*
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* This method can be used before the UART system was initialized.
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*
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* Special charactes that are understood: '\n' and '\r'.
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* Use DOS newlines.
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*/
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void videoram_putc(char c);
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/**
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* @brief Print out multiple characters on the graphical device.
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*
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* This is the same as calling videoram_putc() repeatedly.
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*/
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void videoram_put(const char *s);
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/**
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* @brief Print out multiple characters on the graphical device, then go to the next line.
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*
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* This is the same as calling `videoram_put(s); videoram_put("\r\n");`.
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*/
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void videoram_puts(const char *s);
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/**
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* @brief Print out a hexadecimal number on the graphical device, including "0x" at the start.
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*/
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void videoram_put_hex(unsigned long v);
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#endif
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/** @} */
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