asm/main.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sat, 13 Dec 2008 17:57:58 +0100
changeset 6 c3dc3eb3b541
parent 5 d752cbe8208e
child 9 c3fecc82ade6
permissions -rw-r--r--
a small libtool demo added to the demo distribution committer: Markus Bröker <mbroeker@largo.homelinux.org>
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/**
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 * $Id: main.c,v 1.1.1.1 2008-04-28 17:32:52 mbroeker Exp $
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 * $Source: /development/c/asm/main.c,v $
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 *
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#ifndef TIMEOUT
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#define TIMEOUT 500
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#endif
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int get_sp ();
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void sigendian ()
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{
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    unsigned short word = 0x1234;
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    unsigned char *p = (unsigned char *)&word;
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    signal (SIGUSR1, sigendian);
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    printf ("%s Endian System\n", (p[0] == 0x34) ? "Little" : "Big");
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}
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void sigproc ()
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{
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    signal (SIGINT, sigproc);
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    printf ("Stack-Pointer is at %08x\n", get_sp ());
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}
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void sigquit ()
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{
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    printf ("Hmm... You got it, man!\n");
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    exit (0);
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}
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int main (int argc, char **argv)
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{
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    signal (SIGINT, sigproc);
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    signal (SIGUSR1, sigendian);
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    signal (SIGQUIT, sigquit);
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    for (;;)
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        usleep (TIMEOUT);
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    return EXIT_FAILURE;
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}