/*
* Copyright (C) 2005 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <arch/ski/ski.h>
/** Initialize debug console
*
* Issue SSC (Simulator System Call) to
* to open debug console.
*/
void ski_init_console(void)
{
__asm__ (
"mov r15=%0\n"
"break 0x80000\n"
:
: "i" (SKI_INIT_CONSOLE)
: "r15", "r8"
);
}
/** Display character on debug console
*
* Use SSC (Simulator System Call) to
* display character on debug console.
*
* @param ch Character to be printed.
*/
void ski_putchar(const char ch)
{
__asm__ (
"mov r15=%0\n"
"mov r32=%1\n" /* r32 is in0 */
"break 0x80000\n" /* modifies r8 */
:
: "i" (SKI_PUTCHAR), "r" (ch)
: "r15", "in0", "r8"
);
if (ch == '\n') ski_putchar('\r');
}