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11210 libm should be cstyle(1ONBLD) clean
@@ -20,39 +20,43 @@
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
+
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma weak modfl = __modfl
#include "libm.h"
#if defined(__sparc)
-
long double
-__modfl(long double x, long double *iptr) {
+__modfl(long double x, long double *iptr)
+{
union {
unsigned i[4];
long double q;
} xx, yy;
+
unsigned hx, s;
xx.q = x;
hx = xx.i[0] & ~0x80000000;
if (hx >= 0x406f0000) { /* x is NaN, infinite, or integral */
*iptr = x;
- if (hx < 0x7fff0000 || (hx == 0x7fff0000 &&
- (xx.i[1] | xx.i[2] | xx.i[3]) == 0)) {
+
+ if (hx < 0x7fff0000 || (hx == 0x7fff0000 && (xx.i[1] | xx.i[2] |
+ xx.i[3]) == 0)) {
xx.i[0] &= 0x80000000;
xx.i[1] = xx.i[2] = xx.i[3] = 0;
}
+
return (xx.q);
}
if (hx < 0x3fff0000) { /* |x| < 1 */
xx.i[0] &= 0x80000000;
@@ -61,10 +65,11 @@
return (x);
}
/* split x at the binary point */
s = xx.i[0] & 0x80000000;
+
if (hx < 0x40100000) {
yy.i[0] = xx.i[0] & ~((1 << (0x400f - (hx >> 16))) - 1);
yy.i[1] = yy.i[2] = yy.i[3] = 0;
} else if (hx < 0x40300000) {
yy.i[0] = xx.i[0];
@@ -79,10 +84,11 @@
yy.i[0] = xx.i[0];
yy.i[1] = xx.i[1];
yy.i[2] = xx.i[2];
yy.i[3] = xx.i[3] & ~((1 << (0x406f - (hx >> 16))) - 1);
}
+
*iptr = yy.q;
/*
* we could implement the following more efficiently than by using
* software emulation of fsubq, but we'll do it this way for now
@@ -90,19 +96,19 @@
*/
xx.q -= yy.q;
xx.i[0] = (xx.i[0] & ~0x80000000) | s; /* keep sign of x */
return (xx.q);
}
-
#elif defined(__x86)
-
long double
-__modfl(long double x, long double *iptr) {
+__modfl(long double x, long double *iptr)
+{
union {
unsigned i[3];
long double e;
} xx, yy;
+
unsigned hx, s;
/*
* It might be faster to use one of the x86 fpops instead of
* the following.
@@ -110,15 +116,17 @@
xx.e = x;
hx = xx.i[2] & 0x7fff;
if (hx >= 0x403e) { /* x is NaN, infinite, or integral */
*iptr = x;
- if (hx < 0x7fff || (hx == 0x7fff &&
- ((xx.i[1] << 1) | xx.i[0]) == 0)) {
+
+ if (hx < 0x7fff || (hx == 0x7fff && ((xx.i[1] << 1) |
+ xx.i[0]) == 0)) {
xx.i[2] &= 0x8000;
xx.i[1] = xx.i[0] = 0;
}
+
return (xx.e);
}
if (hx < 0x3fff) { /* |x| < 1 */
xx.i[2] &= 0x8000;
@@ -128,21 +136,22 @@
}
/* split x at the binary point */
s = xx.i[2] & 0x8000;
yy.i[2] = xx.i[2];
+
if (hx < 0x401f) {
yy.i[1] = xx.i[1] & ~((1 << (0x401e - hx)) - 1);
yy.i[0] = 0;
} else {
yy.i[1] = xx.i[1];
yy.i[0] = xx.i[0] & ~((1 << (0x403e - hx)) - 1);
}
+
*iptr = yy.e;
xx.e -= yy.e;
xx.i[2] = (xx.i[2] & ~0x8000) | s; /* keep sign of x */
return (xx.e);
}
-
#else
#error Unknown architecture
#endif