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-rw-r--r--lib/libc/mips/gen/fpsetmask.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/libc/mips/gen/fpsetmask.c b/lib/libc/mips/gen/fpsetmask.c
new file mode 100644
index 0000000..c57f52f
--- /dev/null
+++ b/lib/libc/mips/gen/fpsetmask.c
@@ -0,0 +1,28 @@
+/*
+ * Written by J.T. Conklin, Apr 11, 1995
+ * Public domain.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD$";
+#endif /* LIBC_SCCS and not lint */
+
+#include <ieeefp.h>
+
+fp_except
+fpsetmask(mask)
+ fp_except mask;
+{
+ fp_except old;
+ fp_except new;
+
+ __asm__("cfc1 %0,$31" : "=r" (old));
+
+ new = old;
+ new &= ~(0x1f << 7);
+ new |= ((mask & 0x1f) << 7);
+
+ __asm__("ctc1 %0,$31" : : "r" (new));
+
+ return (old >> 7) & 0x1f;
+}
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