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Diffstat (limited to 'arch/powerpc/math-emu/mtfsb0.c')
-rw-r--r--arch/powerpc/math-emu/mtfsb0.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/mtfsb0.c b/arch/powerpc/math-emu/mtfsb0.c
new file mode 100644
index 000000000..bc985585b
--- /dev/null
+++ b/arch/powerpc/math-emu/mtfsb0.c
@@ -0,0 +1,19 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+
+#include <asm/sfp-machine.h>
+#include <math-emu/soft-fp.h>
+
+int
+mtfsb0(int crbD)
+{
+ if ((crbD != 1) && (crbD != 2))
+ __FPU_FPSCR &= ~(1 << (31 - crbD));
+
+#ifdef DEBUG
+ printk("%s: %d %08lx\n", __func__, crbD, __FPU_FPSCR);
+#endif
+
+ return 0;
+}