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-rw-r--r--arch/ppc/math-emu/single.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/ppc/math-emu/single.h b/arch/ppc/math-emu/single.h
new file mode 100644
index 000000000000..f19d99451815
--- /dev/null
+++ b/arch/ppc/math-emu/single.h
@@ -0,0 +1,66 @@
+/*
+ * Definitions for IEEE Single Precision
+ */
+
+#if _FP_W_TYPE_SIZE < 32
+#error "Here's a nickel kid. Go buy yourself a real computer."
+#endif
+
+#define _FP_FRACBITS_S 24
+#define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S)
+#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S)
+#define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S)
+#define _FP_EXPBITS_S 8
+#define _FP_EXPBIAS_S 127
+#define _FP_EXPMAX_S 255
+#define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2))
+#define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1))
+#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S))
+
+/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
+ chosen by the target machine. */
+
+union _FP_UNION_S
+{
+ float flt;
+ struct {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned sign : 1;
+ unsigned exp : _FP_EXPBITS_S;
+ unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
+#else
+ unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
+ unsigned exp : _FP_EXPBITS_S;
+ unsigned sign : 1;
+#endif
+ } bits __attribute__((packed));
+};
+
+#define FP_DECL_S(X) _FP_DECL(1,X)
+#define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val)
+#define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X)
+
+#define FP_UNPACK_S(X,val) \
+ do { \
+ _FP_UNPACK_RAW_1(S,X,val); \
+ _FP_UNPACK_CANONICAL(S,1,X); \
+ } while (0)
+
+#define FP_PACK_S(val,X) \
+ do { \
+ _FP_PACK_CANONICAL(S,1,X); \
+ _FP_PACK_RAW_1(S,val,X); \
+ } while (0)
+
+#define FP_NEG_S(R,X) _FP_NEG(S,1,R,X)
+#define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y)
+#define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y)
+#define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y)
+#define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y)
+#define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X)
+
+#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un)
+#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y)
+
+#define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg)
+#define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt)
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