/*
 * Copyright (c) 2021, Jeffrey Lee
 * 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.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
 */
#ifndef OSINTERF_H
#define OSINTERF_H

static inline void *setmode(void *mode)
{
	register void *r0valr asm ("r0") = NULL;
	register void *r1valr asm ("r1") = mode;
	asm ("swi 0x20065" : "=r" (r0valr) : "r" (r0valr), "r" (r1valr) : "memory", "cc");
	asm ("swivc 0x36" : : : "cc");
	return r0valr;
}

static inline void readvduvariables(void *vars)
{
	register void *r0valr asm ("r0") = vars;
	register void *r1valr asm ("r1") = vars;
	asm ("swi 0x31" : : "r" (r0valr), "r" (r1valr) : "memory", "cc");
}

#ifdef __cplusplus
extern "C" {
#endif

extern int readescapestate();
extern void printrate(int i);

#ifdef __cplusplus
}
#endif

#endif
