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authormrb0nk500 <b0nk@b0nk.xyz>2023-02-02 17:29:19 -0400
committermrb0nk500 <b0nk@b0nk.xyz>2023-02-03 13:27:06 -0400
commitf2eabdb6257c09cf2890dac5e9737912728542af (patch)
tree3b46f6787185d65605651a0f48776dc9779ce648 /src/MSL_C.PPCEABI.bare.H/s_floor.c
parenteef1dd840b7cecac28c2e6b0574707b90a37d4e7 (diff)
global: Add rest of Dolphin SDK proper, add MSL, and MetroTRK
Finally, it links properly.
Diffstat (limited to 'src/MSL_C.PPCEABI.bare.H/s_floor.c')
-rw-r--r--src/MSL_C.PPCEABI.bare.H/s_floor.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/src/MSL_C.PPCEABI.bare.H/s_floor.c b/src/MSL_C.PPCEABI.bare.H/s_floor.c
new file mode 100644
index 0000000..bac24bc
--- /dev/null
+++ b/src/MSL_C.PPCEABI.bare.H/s_floor.c
@@ -0,0 +1,87 @@
+/* @(#)s_floor.c 1.3 95/01/18 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunSoft, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+/*
+ * floor(x)
+ * Return x rounded toward -inf to integral value
+ * Method:
+ * Bit twiddling.
+ * Exception:
+ * Inexact flag raised if x not equal to floor(x).
+ */
+#include "fdlibm.h"
+
+#ifdef __STDC__
+static const double huge = 1.0e300;
+#else
+static double huge = 1.0e300;
+#endif
+
+#ifdef __STDC__
+double floor(double x)
+#else
+double floor(x)
+double x;
+#endif
+{
+ int i0, i1, j0;
+ unsigned i, j;
+ i0 = __HI(x);
+ i1 = __LO(x);
+ j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
+ if (j0 < 20) {
+ if (j0 < 0) { /* raise inexact if x != 0 */
+ if (huge + x > 0.0) { /* return 0*sign(x) if |x|<1 */
+ if (i0 >= 0) {
+ i0 = i1 = 0;
+ } else if (((i0 & 0x7fffffff) | i1) != 0) {
+ i0 = 0xbff00000;
+ i1 = 0;
+ }
+ }
+ } else {
+ i = (0x000fffff) >> j0;
+ if (((i0 & i) | i1) == 0)
+ return x; /* x is integral */
+ if (huge + x > 0.0) { /* raise inexact flag */
+ if (i0 < 0)
+ i0 += (0x00100000) >> j0;
+ i0 &= (~i);
+ i1 = 0;
+ }
+ }
+ } else if (j0 > 51) {
+ if (j0 == 0x400)
+ return x + x; /* inf or NaN */
+ else
+ return x; /* x is integral */
+ } else {
+ i = ((unsigned)(0xffffffff)) >> (j0 - 20);
+ if ((i1 & i) == 0)
+ return x; /* x is integral */
+ if (huge + x > 0.0) { /* raise inexact flag */
+ if (i0 < 0) {
+ if (j0 == 20)
+ i0 += 1;
+ else {
+ j = i1 + (1 << (52 - j0));
+ if (j < i1)
+ i0 += 1; /* got a carry */
+ i1 = j;
+ }
+ }
+ i1 &= (~i);
+ }
+ }
+ __HI(x) = i0;
+ __LO(x) = i1;
+ return x;
+}