Libc-763.13.tar.gz

[apple/libc.git] / fbsdcompat / _fpmath.h

diff --git a/fbsdcompat/_fpmath.h b/fbsdcompat/_fpmath.h
index 83a08a87c64dd534d5d6bd0178a0d000d0e6411c..cf40a68d5933110200cfe478b1ced03a8af7d5ce 100644 (file)
--- a/fbsdcompat/_fpmath.h
+++ b/fbsdcompat/_fpmath.h
@@ -1,10 +1,8 @@
 /*
- * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003, 2008 Apple Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
@@ -50,6 +48,35 @@
  * $FreeBSD: src/lib/libc/i386/_fpmath.h,v 1.3 2004/01/18 07:57:01 das Exp $
  */
 
+#if defined(__ppc__) || defined(__ppc64__)
+
+union IEEEl2bits {
+       long double     e;
+       double          d[2];
+       struct {
+               unsigned long long      sign    :1;
+               unsigned long long      exp     :11;
+               unsigned long long      manh    :52;
+               unsigned long long      sign2   :1;
+               unsigned long long      exp2    :11;
+               unsigned long long      manl    :52;
+       } bits;
+};
+
+#define        mask_nbit_l(u)  ((void)0)
+#define LDBL_IMPLICIT_NBIT
+
+#define        LDBL_MANH_SIZE  52
+#define        LDBL_MANL_SIZE  53      // includes hidden bit
+
+#define LDBL_HEAD_TAIL_PAIR
+
+__private_extern__ int _ldbl2array32dd(union IEEEl2bits, uint32_t *);
+
+#define        LDBL_TO_ARRAY32(u, a) _ldbl2array32dd(u, a)
+
+#elif defined(__i386__) || defined(__x86_64__)
+
 union IEEEl2bits {
        long double     e;
        struct {
@@ -70,3 +97,36 @@ union IEEEl2bits {
        (a)[0] = (uint32_t)(u).bits.manl;               \
        (a)[1] = (uint32_t)(u).bits.manh;               \
 } while(0)
+#elif defined(__arm__)
+
+union IEEEl2bits {
+    long double     e;
+    struct {
+#ifndef __ARMEB__
+       unsigned int    manl    :32;
+       unsigned int    manh    :20;
+       unsigned int    exp     :11;
+       unsigned int    sign    :1;
+#else
+       unsigned int            sign    :1;
+       unsigned int            exp     :11;
+       unsigned int            manh    :20;
+       unsigned int            manl    :32;
+#endif
+    } bits;
+};
+
+#define LDBL_NBIT       0
+#define mask_nbit_l(u)  ((void)0)
+
+#define LDBL_MANH_SIZE  20
+#define LDBL_MANL_SIZE  32
+
+#define LDBL_TO_ARRAY32(u, a) do {                      \
+        (a)[0] = (uint32_t)(u).bits.manl;               \
+        (a)[1] = (uint32_t)(u).bits.manh;               \
+} while(0)
+
+#else
+#error unsupported architecture
+#endif