X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=StdLib%2FInclude%2FAarch64%2Fmachine%2Ffenv.h;fp=StdLib%2FInclude%2FAarch64%2Fmachine%2Ffenv.h;h=8e255f56d35bd871eaf3481304d45f5770c27e0a;hp=0000000000000000000000000000000000000000;hb=1bbb83b5267b8a6701a6acae504a2b2e6b5db569;hpb=d799c0283259ed7709055aca3871e8f67f38610a

diff --git a/StdLib/Include/Aarch64/machine/fenv.h b/StdLib/Include/Aarch64/machine/fenv.h
new file mode 100644
index 0000000000..8e255f56d3
--- /dev/null
+++ b/StdLib/Include/Aarch64/machine/fenv.h
@@ -0,0 +1,39 @@
+/*  $NetBSD: fenv.h,v 1.2 2014/01/29 00:22:09 matt Exp $    */
+
+/*
+ * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
+ * Public domain.
+ */
+
+#ifndef _AARCH64_FENV_H_
+#define _AARCH64_FENV_H_
+
+/* AArch64 split FPSCR into two registers FPCR and FPSR */
+typedef struct {
+    unsigned int __fpcr;
+    unsigned int __fpsr;
+} fenv_t;
+typedef int fexcept_t;
+
+#define FE_INVALID      0x01    /* invalid operation exception */
+#define FE_DIVBYZERO    0x02    /* divide-by-zero exception */
+#define FE_OVERFLOW     0x04    /* overflow exception */
+#define FE_UNDERFLOW    0x08    /* underflow exception */
+#define FE_INEXACT      0x10    /* imprecise (loss of precision; "inexact") */
+
+#define FE_ALL_EXCEPT   0x1f
+
+#define FE_TONEAREST    0   /* round to nearest representable number */
+#define FE_UPWARD       1   /* round toward positive infinity */
+#define FE_DOWNWARD     2   /* round toward negative infinity */
+#define FE_TOWARDZERO   3   /* round to zero (truncate) */
+
+__BEGIN_DECLS
+
+/* Default floating-point environment */
+extern const fenv_t __fe_dfl_env;
+#define FE_DFL_ENV  (&__fe_dfl_env)
+
+__END_DECLS
+
+#endif /* _AARCH64_FENV_H_ */