summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/math-emu/fneg.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--arch/powerpc/math-emu/fneg.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fneg.c b/arch/powerpc/math-emu/fneg.c
new file mode 100644
index 000000000..791e724f7
--- /dev/null
+++ b/arch/powerpc/math-emu/fneg.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/uaccess.h>
+
+int
+fneg(u32 *frD, u32 *frB)
+{
+ frD[0] = frB[0] ^ 0x80000000;
+ frD[1] = frB[1];
+
+#ifdef DEBUG
+ printk("%s: D %p, B %p: ", __func__, frD, frB);
+ dump_double(frD);
+ printk("\n");
+#endif
+
+ return 0;
+}