1 files changed, 104 insertions, 0 deletions

diff --git a/arch/powerpc/math-emu/soft-fp.h b/arch/powerpc/math-emu/soft-fp.h
new file mode 100644
index 000000000000..cca39598f873
--- /dev/null
+++ b/arch/powerpc/math-emu/soft-fp.h
@@ -0,0 +1,104 @@
+#ifndef SOFT_FP_H
+#define SOFT_FP_H
+
+#include "sfp-machine.h"
+
+#define _FP_WORKBITS            3
+#define _FP_WORK_LSB            ((_FP_W_TYPE)1 << 3)
+#define _FP_WORK_ROUND          ((_FP_W_TYPE)1 << 2)
+#define _FP_WORK_GUARD          ((_FP_W_TYPE)1 << 1)
+#define _FP_WORK_STICKY         ((_FP_W_TYPE)1 << 0)
+
+#ifndef FP_RND_NEAREST
+# define FP_RND_NEAREST         0
+# define FP_RND_ZERO            1
+# define FP_RND_PINF            2
+# define FP_RND_MINF            3
+#ifndef FP_ROUNDMODE
+# define FP_ROUNDMODE           FP_RND_NEAREST
+#endif
+#endif
+
+#define _FP_ROUND_NEAREST(wc, X)                        \
+({  int __ret = 0;                                      \
+    int __frac = _FP_FRAC_LOW_##wc(X) & 15;             \
+    if (__frac & 7) {                                   \
+      __ret = EFLAG_INEXACT;                            \
+      if ((__frac & 7) != _FP_WORK_ROUND)               \
+        _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND);          \
+      else if (__frac & _FP_WORK_LSB)                   \
+        _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND);          \
+    }                                                   \
+    __ret;                                              \
+})
+
+#define _FP_ROUND_ZERO(wc, X)                           \
+({  int __ret = 0;                                      \
+    if (_FP_FRAC_LOW_##wc(X) & 7)                       \
+      __ret = EFLAG_INEXACT;                            \
+    __ret;                                              \
+})
+
+#define _FP_ROUND_PINF(wc, X)                           \
+({  int __ret = EFLAG_INEXACT;                          \
+    if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7))           \
+      _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB);              \
+    else __ret = 0;                                     \
+    __ret;                                              \
+})
+
+#define _FP_ROUND_MINF(wc, X)                           \
+({  int __ret = EFLAG_INEXACT;                          \
+    if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7))            \
+      _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB);              \
+    else __ret = 0;                                     \
+    __ret;                                              \
+})
+
+#define _FP_ROUND(wc, X)                        \
+({      int __ret = 0;                          \
+        switch (FP_ROUNDMODE)                   \
+        {                                       \
+          case FP_RND_NEAREST:                  \
+            __ret |= _FP_ROUND_NEAREST(wc,X);   \
+            break;                              \
+          case FP_RND_ZERO:                     \
+            __ret |= _FP_ROUND_ZERO(wc,X);      \
+            break;                              \
+          case FP_RND_PINF:                     \
+            __ret |= _FP_ROUND_PINF(wc,X);      \
+            break;                              \
+          case FP_RND_MINF:                     \
+            __ret |= _FP_ROUND_MINF(wc,X);      \
+            break;                              \
+        };                                      \
+        __ret;                                  \
+})
+
+#define FP_CLS_NORMAL           0
+#define FP_CLS_ZERO             1
+#define FP_CLS_INF              2
+#define FP_CLS_NAN              3
+
+#define _FP_CLS_COMBINE(x,y)    (((x) << 2) | (y))
+
+#include "op-1.h"
+#include "op-2.h"
+#include "op-4.h"
+#include "op-common.h"
+
+/* Sigh.  Silly things longlong.h needs.  */
+#define UWtype          _FP_W_TYPE
+#define W_TYPE_SIZE     _FP_W_TYPE_SIZE
+
+typedef int SItype __attribute__((mode(SI)));
+typedef int DItype __attribute__((mode(DI)));
+typedef unsigned int USItype __attribute__((mode(SI)));
+typedef unsigned int UDItype __attribute__((mode(DI)));
+#if _FP_W_TYPE_SIZE == 32
+typedef unsigned int UHWtype __attribute__((mode(HI)));
+#elif _FP_W_TYPE_SIZE == 64
+typedef USItype UHWtype;
+#endif
+
+#endif