18 static inline void mvc_256(const char *dst, const char *src)  in mvc_256()  argument
21         "    mvc 0(256,%[dst]),0(%[src])\n"  in mvc_256()
24           [src] "a" (src)  in mvc_256()
30     char *src, *dst;  in main()  local
40     src = valloc(ALLOC_SIZE);  in main()
42     memset(src, 0xff, ALLOC_SIZE);  in main()
46     if (mprotect(src + 4096, 4096, PROT_NONE) ||  in main()
54         mvc_256(dst + 4096 - 128, src);  in main()
61         mvc_256(dst, src + 4096 - 128);  in main()
68         mvc_256(dst + 4096 - 128, src + 4096 - 128);  in main()
74     if (mprotect(src + 4096, 4096, PROT_READ | PROT_WRITE) ||  in main()
82         if (src[i] != 0xff || dst[i]) {  in main()
89     mvc_256(dst + 4096 - 128, src + 4096 - 128);  in main()
91         if (src[i] != 0xff) {  in main()
92             fprintf(stderr, "src modified\n");  in main()