fceux/memory.c

101 lines
2.2 KiB
C

/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2002 Xodnizel
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include "types.h"
#include "fceu.h"
#include "memory.h"
#include "general.h"
void *FCEU_gmalloc(uint32 size)
{
void *ret;
ret=malloc(size);
if(!ret)
{
FCEU_PrintError("Error allocating memory! Doing a hard exit.");
exit(1);
}
return ret;
}
void *FCEU_malloc(uint32 size)
{
void *ret;
ret=malloc(size);
if(!ret)
{
FCEU_PrintError("Error allocating memory!");
return(0);
}
return ret;
}
void FCEU_free(void *ptr) // Might do something with this and FCEU_malloc later...
{
free(ptr);
}
void FCEU_gfree(void *ptr)
{
free(ptr);
}
void FASTAPASS(3) FCEU_memmove(void *d, void *s, uint32 l)
{
uint32 x;
int t;
/* Type really doesn't matter. */
t=(int)d;
t|=(int)s;
t|=(int)l;
if(t&3) // Not 4-byte aligned and/or length is not a multiple of 4.
{
uint8 *tmpd, *tmps;
tmpd = (uint8*)d; //mbg merge 7/17/06 added cast
tmps = (uint8*)s; //mbg merge 7/17/06 added cast
for(x=l;x;x--) // This could be optimized further, though(more tests could be performed).
{
*tmpd=*tmps;
tmpd++;
tmps++;
}
}
else
{
uint32 *tmpd, *tmps;
tmpd = (uint32*)d; //mbg merge 7/17/06 added cast
tmps = (uint32*)s; //mbg merge 7/17/06 added cast
for(x=l>>2;x;x--)
{
*tmpd=*tmps;
tmpd++;
tmps++;
}
}
}