Files
FireBee_SVN/usb/store/host/aranym/natfeat.c

119 lines
2.3 KiB
C

/*
* ARAnyM native features interface.
* (c) 2005-2008 ARAnyM development team
*
* In 2006 updated with FreeMiNT headers and code.
* In 2008 converted from "__NF" cookie to direct usage of NF instructions
*
**/
/*
* Copied from FreeMiNT source tree where Native Features were added recently
*
* Copyright 2003 Frank Naumann <fnaumann@freemint.de>
* All rights reserved.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This file 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* Author: Frank Naumann <fnaumann@freemint.de>
* Started: 2003-12-13
*
*/
# include <compiler.h>
# include <mint/osbind.h>
# include "nf_ops.h"
#define ARANYM 1
# ifdef ARANYM
static unsigned long nf_get_id_instr = 0x73004e75UL;
static unsigned long nf_call_instr = 0x73014e75UL;
static struct nf_ops _nf_ops = { (void*)&nf_get_id_instr, (void*)&nf_call_instr };
static struct nf_ops *nf_ops = 0UL;
extern int detect_native_features(void);
struct nf_ops *
nf_init(void)
{
if (Supexec(detect_native_features))
{
nf_ops = &_nf_ops;
return nf_ops;
}
return 0UL;
}
const char *
nf_name(void)
{
static char buf[64] = "Unknown emulator";
if (nf_ops)
{
static int done = 0;
if (!done)
{
long nfid_name = nf_ops->get_id("NF_NAME");
if (nfid_name)
nf_ops->call(nfid_name, buf, sizeof(buf));
done = 1;
}
}
return buf;
}
int
nf_debug(const char *msg)
{
if (nf_ops)
{
long nfid_stderr = nf_ops->get_id("NF_STDERR");
if (nfid_stderr)
{
nf_ops->call(nfid_stderr, msg);
return 1;
}
}
return 0;
}
void
nf_shutdown(void)
{
if (nf_ops)
{
long shutdown_id = nf_ops->get_id("NF_SHUTDOWN");
if (shutdown_id)
nf_ops->call(shutdown_id);
}
}
# endif