1 #include <features.h>
2 #include <signal.h>
3 #include <sys/types.h>
4 #include <pthread.h>
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8 #include <unistd.h>
9
10 char source[40] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0";
11 char target[40] = " \0";
12
13 pthread_t thread;
14
threadfunc(void * arg)15 void *threadfunc(void *arg)
16 {
17 char buf2[40];
18 int i;
19
20 memset(buf2, 0, sizeof(buf2));
21 for (i=0; i<5000; i++)
22 asm volatile(
23 "lghi 2,0\n"
24 "lghi 3,0\n"
25 "lgr 4,%0\n"
26 "lgr 5,%1\n"
27 "larl 1,1f\n"
28 "0: ex 0,0(1)\n"
29 "j 2f\n"
30 "1: mvc 0(30,4),0(5)\n"
31 "2:\n"
32 ::"a" (buf2), "a" (source)
33 : "1", "2", "3", "4", "5", "memory");
34 printf("%s\n", buf2);
35 pthread_exit(0);
36 }
37
main()38 int main()
39 {
40 int i;
41
42 pthread_create(&thread, NULL, threadfunc, NULL);
43
44 for (i=0; i<5000; i++)
45 asm volatile(
46 "lghi 4,0\n"
47 "lghi 5,0\n"
48 "lgr 2,%0\n"
49 "lgr 3,%1\n"
50 "larl 1,1f\n"
51 "0: ex 0,0(1)\n"
52 "j 2f\n"
53 "1: mvc 0(20,2),0(3)\n"
54 "2:\n"
55 ::"a" (target), "a" (source)
56 : "1", "2", "3", "4", "5", "memory");
57 pthread_join(thread, NULL);
58 printf("%s\n", target);
59 pthread_exit(0);
60 }
61