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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [mmixware/] [_exit.c] - Rev 258
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/* _exit for MMIXware. Copyright (C) 2001 Hans-Peter Nilsson Permission to use, copy, modify, and distribute this software is freely granted, provided that the above copyright notice, this notice and the following disclaimer are preserved with no changes. THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #include <_ansi.h> #include <sys/types.h> #include <sys/stat.h> #include "sys/syscall.h" void _exit (int n) { /* The return status is passed on at exit from the simulator by all but the oldest versions of Knuth's mmixware simulator. Beware, "TRAP 0,0,0" is the instruction corresponding to (int32_t) 0 and the value 0 in $255 is common enough that a program crash jumping to e.g. uninitialized memory will look like "exit (0)". */ __asm__ ("SET $255,%0\n\tTRAP 0,0,0" : /* No outputs. */ : "r" (n) : "memory"); }
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