libgloss/xc16x/trap_handle.c


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/*
 * Copyright (C) 2006 KPIT Cummins
 * Copyright (C) 2009 Conny Marco Menebröcker
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms is permitted
 * provided that the above copyright notice and following paragraph are
 * duplicated in all such forms.
 *
 * This file is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 */
int trap0(int file, unsigned long ptr,int len)
{
asm volatile("TRAP #3");
return len;
}


int trap1(int file, unsigned long ptr,int len)
{
 asm volatile("TRAP #4");
                                                                                
}
                                                                                
int trap_lseek(int file, unsigned long ptr,int len)
{
 asm volatile("TRAP #8");
                                                                                
}
                                                                                

volatile int opensys(char *name,int flags,int perms)
{
 #ifndef __xc16xL__
        asm volatile("push r11\n"
                     "mov r11,r10 \n"
                     " mov r10,r9  \n"
                     " mov r9,#0x300 \n"
                     );
                                                                                
  #endif
                                                                                
asm volatile("trap #5");
#ifndef __xc16xL__
asm volatile("pop r11");
#endif
}
                                                                                
volatile int creatsys(char *name,int perms)
{
 #ifndef __xc16xL__
        asm volatile("push r10\n"
                     " mov r10,r9  \n"
                     " mov r9,#0x300 \n"
                     );
                                                                                
  #endif
                                                                                
asm volatile("trap #7");
#ifndef __xc16xL__
asm volatile("pop r10");
#endif
}