summaryrefslogtreecommitdiff
path: root/arch/powerpc/math-emu/fneg.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/powerpc/math-emu/fneg.c
Initial import
Diffstat (limited to 'arch/powerpc/math-emu/fneg.c')
-rw-r--r--arch/powerpc/math-emu/fneg.c18
1 files changed, 18 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..1e988cd9c
--- /dev/null
+++ b/arch/powerpc/math-emu/fneg.c
@@ -0,0 +1,18 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/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;
+}