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/*
* videoAsm.S - This file contains code for displaying cursor on the console
*
* Copyright (C) 1998 valette@crf.canon.fr
*
* This code is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
.file "videoAsm.s"
#include <crt.h>
.text
.align 4
.globl wr_cursor /* Move cursor position */
/*
* void wr_cursor(newPosition, ioBaseAddr)
*/
wr_cursor: pushl %ecx
movl 8(%esp), %ecx /* Get new cursor position */
movb $CC_CURSHIGH, %al /* Cursor high location */
movl 12(%esp), %edx /* Get IO base address */
outb (%dx)
incw %dx /* Program Data register */
movb %ch, %al
outb (%dx) /* Update high location cursor */
decw %dx /* Program Index Register */
movb $CC_CURSLOW, %al /* Cursor low location */
outb (%dx)
incw %dx /* Program Data Register */
movb %cl, %al
outb (%dx) /* Update low location cursor */
popl %ecx
ret
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