1 files changed, 23 insertions, 0 deletions
diff --git a/winsup/mingw/mingwex/math/fmodf.c b/winsup/mingw/mingwex/math/fmodf.c
new file mode 100644
index 000000000..6405d725f
--- /dev/null
+++ b/winsup/mingw/mingwex/math/fmodf.c
@@ -0,0 +1,23 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for float type by Danny Smith
+ *  <dannysmith@users.sourceforge.net>.
+ */
+
+#include <math.h>
+
+float
+fmodf (float x, float y)
+{
+  float res;
+
+  asm ("1:\tfprem\n\t"
+       "fstsw   %%ax\n\t"
+       "sahf\n\t"
+       "jp      1b\n\t"
+       "fstp    %%st(1)"
+       : "=t" (res) : "0" (x), "u" (y) : "ax", "st(1)");
+  return res;
+}