1 /* Test program for SSE registers.
2 
3    Copyright 2004 Free Software Foundation, Inc.
4 
5    This file is part of GDB.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 59 Temple Place - Suite 330,
20    Boston, MA 02111-1307, USA.  */
21 
22 #include <stdio.h>
23 #include "i386-cpuid.h"
24 
25 typedef struct {
26   float f[4];
27 } v4sf_t;
28 
29 
30 v4sf_t data[8] =
31   {
32     { {  0.0, 0.25, 0.50, 0.75 } },
33     { {  1.0, 1.25, 1.50, 1.75 } },
34     { {  2.0, 2.25, 2.50, 2.75 } },
35     { {  3.0, 3.25, 3.50, 3.75 } },
36     { {  4.0, 4.25, 4.50, 4.75 } },
37     { {  5.0, 5.25, 5.50, 5.75 } },
38     { {  6.0, 6.25, 6.50, 6.75 } },
39     { {  7.0, 7.25, 7.50, 7.75 } },
40   };
41 
42 
43 int
44 have_sse (void)
45 {
46   int edx = i386_cpuid ();
47 
48   if (edx & bit_SSE)
49     return 1;
50   else
51     return 0;
52 }
53 
54 int
55 main (int argc, char **argv)
56 {
57   if (have_sse ())
58     {
59       asm ("movaps 0(%0), %%xmm0\n\t"
60            "movaps 16(%0), %%xmm1\n\t"
61            "movaps 32(%0), %%xmm2\n\t"
62            "movaps 48(%0), %%xmm3\n\t"
63            "movaps 64(%0), %%xmm4\n\t"
64            "movaps 80(%0), %%xmm5\n\t"
65            "movaps 96(%0), %%xmm6\n\t"
66            "movaps 112(%0), %%xmm7\n\t"
67            : /* no output operands */
68            : "r" (data)
69            : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
70 
71       puts ("Hi!"); /* first breakpoint here */
72 
73       asm (
74            "movaps %%xmm0, 0(%0)\n\t"
75            "movaps %%xmm1, 16(%0)\n\t"
76            "movaps %%xmm2, 32(%0)\n\t"
77            "movaps %%xmm3, 48(%0)\n\t"
78            "movaps %%xmm4, 64(%0)\n\t"
79            "movaps %%xmm5, 80(%0)\n\t"
80            "movaps %%xmm6, 96(%0)\n\t"
81            "movaps %%xmm7, 112(%0)\n\t"
82            : /* no output operands */
83            : "r" (data)
84            : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
85 
86       puts ("Bye!"); /* second breakpoint here */
87     }
88 
89   return 0;
90 }
91