Permalink
Switch branches/tags
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
57 lines (43 sloc) 1.66 KB
/*
* Copyright 2014 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include <emscripten.h>
volatile char data[16];
__attribute__((noinline)) void *get_aligned(int align)
{
char *ptr = (char*)(((int)(data + 7)) & ~7); // Make 8-byte aligned
ptr += align; // Now 'align' aligned
return (void*)ptr;
}
int main()
{
emscripten_align4_double *d4 = (emscripten_align4_double*)get_aligned(4);
*d4 = 17.0;
printf("addr: %d, value: %f\n", ((int)d4) % 8, *d4);
emscripten_align2_double *d2 = (emscripten_align2_double*)get_aligned(2);
*d2 = 18.0;
printf("addr: %d, value: %f\n", ((int)d2) % 8, *d2);
emscripten_align1_double *d1 = (emscripten_align1_double*)get_aligned(1);
*d1 = 19.0;
printf("addr: %d, value: %f\n", ((int)d1) % 8, *d1);
emscripten_align2_float *f2 = (emscripten_align2_float*)get_aligned(2);
*f2 = 20.0;
printf("addr: %d, value: %f\n", ((int)f2) % 4, *f2);
emscripten_align1_float *f1 = (emscripten_align1_float*)get_aligned(1);
*f1 = 21.0;
printf("addr: %d, value: %f\n", ((int)f1) % 4, *f1);
emscripten_align2_int *i2 = (emscripten_align2_int*)get_aligned(2);
*i2 = 22;
printf("addr: %d, value: %d\n", ((int)i2) % 4, *i2);
emscripten_align1_int *i1 = (emscripten_align1_int*)get_aligned(1);
*i1 = 23;
printf("addr: %d, value: %d\n", ((int)i1) % 4, *i1);
emscripten_align1_short *s1 = (emscripten_align1_short*)get_aligned(1);
*s1 = 24;
printf("addr: %d, value: %d\n", ((int)s1) % 4, (int)*s1);
return 0;
}