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authorRich Felker <dalias@aerifal.cx>2020-08-02 23:31:51 -0400
committerRich Felker <dalias@aerifal.cx>2020-08-02 23:31:51 -0400
commit845e4f6692336ea7f7672045dee05fa39c4022ec (patch)
tree048f1fc6f7ca316c1a3bcc7f320042c895b9c9b1 /src
parentddf1750e42e17f75e765d494874308c6393118bb (diff)
downloadmusl-845e4f6692336ea7f7672045dee05fa39c4022ec.tar.gz
add m68k sqrtl using native instruction
this is actually a functional fix at present, since the C sqrtl does not support ld80 and just wraps double sqrt. once that's fixed it will just be an optimization.
Diffstat (limited to 'src')
-rw-r--r--src/math/m68k/sqrtl.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/math/m68k/sqrtl.c b/src/math/m68k/sqrtl.c
new file mode 100644
index 00000000..b1c303c7
--- /dev/null
+++ b/src/math/m68k/sqrtl.c
@@ -0,0 +1,15 @@
+#include <math.h>
+
+#if __HAVE_68881__
+
+long double sqrtl(long double x)
+{
+ __asm__ ("fsqrt.x %1,%0" : "=f"(x) : "fm"(x));
+ return x;
+}
+
+#else
+
+#include "../sqrtl.c"
+
+#endif