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Diffstat (limited to 'lib/libc/mips/gen/hardfloat/fpsetround.c')
-rw-r--r--lib/libc/mips/gen/hardfloat/fpsetround.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/libc/mips/gen/hardfloat/fpsetround.c b/lib/libc/mips/gen/hardfloat/fpsetround.c
new file mode 100644
index 0000000..0205161
--- /dev/null
+++ b/lib/libc/mips/gen/hardfloat/fpsetround.c
@@ -0,0 +1,37 @@
+/* $NetBSD: fpsetround.c,v 1.5 2005/12/24 23:10:08 perry Exp $ */
+
+/*
+ * Written by J.T. Conklin, Apr 11, 1995
+ * Public domain.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: fpsetround.c,v 1.5 2005/12/24 23:10:08 perry Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include "namespace.h"
+
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetround,_fpsetround)
+#endif
+
+fp_rnd_t
+fpsetround(fp_rnd_t rnd_dir)
+{
+ fp_rnd_t old;
+ fp_rnd_t new;
+
+ __asm("cfc1 %0,$31" : "=r" (old));
+
+ new = old;
+ new &= ~0x03;
+ new |= (rnd_dir & 0x03);
+
+ __asm("ctc1 %0,$31" : : "r" (new));
+
+ return old & 0x03;
+}
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