10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 */
25 /*
26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29
30 #if defined(ELFOBJ)
31 #pragma weak fdimf = __fdimf
32 #endif
33
34 #include "libm.h" /* for islessequal macro */
35
36 float
37 __fdimf(float x, float y) {
38 /*
39 * On SPARC v8plus/v9, this could be implemented as follows
40 * (assuming %f0 = x, %f1 = y, return value left in %f0):
41 *
42 * fcmps %fcc0,%f0,%f1
43 * st %g0,[scratch] ! use fzero instead of st/ld
44 * ld [scratch],%f2 ! if VIS is available
45 * fnegs %f2,%f3
46 * fmovsle %fcc0,%f2,%f0
47 * fmovsle %fcc0,%f3,%f1
48 * fsubs %f0,%f1,%f0
49 */
50 if (islessequal(x, y)) {
51 x = 0.0f;
52 y = -x;
|
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 */
25 /*
26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29
30 #pragma weak fdimf = __fdimf
31
32 #include "libm.h" /* for islessequal macro */
33
34 float
35 __fdimf(float x, float y) {
36 /*
37 * On SPARC v8plus/v9, this could be implemented as follows
38 * (assuming %f0 = x, %f1 = y, return value left in %f0):
39 *
40 * fcmps %fcc0,%f0,%f1
41 * st %g0,[scratch] ! use fzero instead of st/ld
42 * ld [scratch],%f2 ! if VIS is available
43 * fnegs %f2,%f3
44 * fmovsle %fcc0,%f2,%f0
45 * fmovsle %fcc0,%f3,%f1
46 * fsubs %f0,%f1,%f0
47 */
48 if (islessequal(x, y)) {
49 x = 0.0f;
50 y = -x;
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