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Diffstat (limited to 'arch/x86_64/bits/fenv.h')
-rw-r--r--arch/x86_64/bits/fenv.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/x86_64/bits/fenv.h b/arch/x86_64/bits/fenv.h
new file mode 100644
index 00000000..24df0417
--- /dev/null
+++ b/arch/x86_64/bits/fenv.h
@@ -0,0 +1,34 @@
+#define FE_INVALID 1
+#define __FE_DENORM 2
+#define FE_DIVBYZERO 4
+#define FE_OVERFLOW 8
+#define FE_UNDERFLOW 16
+#define FE_INEXACT 32
+
+#define FE_ALL_EXCEPT 63
+
+#define FE_TONEAREST 0
+#define FE_DOWNWARD 0x400
+#define FE_UPWARD 0x800
+#define FE_TOWARDZERO 0xc00
+
+typedef unsigned short fexcept_t;
+
+typedef struct {
+ unsigned short __control_word;
+ unsigned short __unused1;
+ unsigned short __status_word;
+ unsigned short __unused2;
+ unsigned short __tags;
+ unsigned short __unused3;
+ unsigned int __eip;
+ unsigned short __cs_selector;
+ unsigned int __opcode:11;
+ unsigned int __unused4:5;
+ unsigned int __data_offset;
+ unsigned short __data_selector;
+ unsigned short __unused5;
+ unsigned int __mxcsr;
+} fenv_t;
+
+#define FE_DFL_ENV ((const fenv_t *) -1)