src/third_party/npapi/npspy/extern/java/jri_md.h

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: NPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Netscape Public License
   6  * Version 1.1 (the "License"); you may not use this file except in
   7  * compliance with the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/NPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is mozilla.org code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the NPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
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  34  * the terms of any one of the NPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 /*******************************************************************************
  39  * Java Runtime Interface - Machine Dependent Types
  40  ******************************************************************************/
  41
  42 #ifndef JRI_MD_H
  43 #define JRI_MD_H
  44
  45 #include <assert.h>
  46 #include "prtypes.h" /* Needed for HAS_LONG_LONG ifdefs */
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 /*******************************************************************************
  53  * WHAT'S UP WITH THIS FILE?
  54  *
  55  * This is where we define the mystical JRI_PUBLIC_API macro that works on all
  56  * platforms. If you're running with Visual C++, Symantec C, or Borland's
  57  * development environment on the PC, you're all set. Or if you're on the Mac
  58  * with Metrowerks, Symantec or MPW with SC you're ok too. For UNIX it shouldn't
  59  * matter.
  60  *
  61  * On UNIX though you probably care about a couple of other symbols though:
  62  *      IS_LITTLE_ENDIAN must be defined for little-endian systems
  63  *      HAVE_LONG_LONG must be defined on systems that have 'long long' integers
  64  *      HAVE_ALIGNED_LONGLONGS must be defined if long-longs must be 8 byte aligned
  65  *      HAVE_ALIGNED_DOUBLES must be defined if doubles must be 8 byte aligned
  66  *      IS_64 must be defined on 64-bit machines (like Dec Alpha)
  67  ******************************************************************************/
  68
  69 /* DLL Entry modifiers... */
  70
  71 /* PC */
  72 #if defined(XP_OS2)
  73 #  ifdef XP_OS2_VACPP
  74 #         define JRI_PUBLIC_API(ResultType)         ResultType _Optlink
  75 #         define JRI_PUBLIC_VAR(VarType)        VarType
  76 #     define JRI_CALLBACK
  77 #  else
  78 #         define JRI_PUBLIC_API(ResultType)         ResultType
  79 #         define JRI_PUBLIC_VAR(VarType)        VarType
  80 #     define JRI_CALLBACK
  81 #  endif
  82 #elif defined(XP_WIN) || defined(_WINDOWS) || defined(WIN32) || defined(_WIN32)
  83 #       include <windows.h>
  84 #       if defined(_MSC_VER) || defined(__GNUC__)
  85 #               if defined(WIN32) || defined(_WIN32)
  86 #                       define JRI_PUBLIC_API(ResultType)  __declspec(dllexport) ResultType
  87 #                       define JRI_PUBLIC_VAR(VarType)     VarType
  88 #                       define JRI_PUBLIC_VAR_EXP(VarType) __declspec(dllexport) VarType
  89 #                       define JRI_PUBLIC_VAR_IMP(VarType) __declspec(dllimport) VarType
  90 #                       define JRI_NATIVE_STUB(ResultType) __declspec(dllexport) ResultType
  91 #                       define JRI_CALLBACK
  92 #               else /* !_WIN32 */
  93 #                   if defined(_WINDLL)
  94 #                       define JRI_PUBLIC_API(ResultType)       ResultType __cdecl __export __loadds
  95 #                       define JRI_PUBLIC_VAR(VarType)          VarType
  96 #                       define JRI_PUBLIC_VAR_EXP(VarType)      JRI_PUBLIC_VAR(VarType)
  97 #                       define JRI_PUBLIC_VAR_IMP(VarType)      JRI_PUBLIC_VAR(VarType)
  98 #                       define JRI_NATIVE_STUB(ResultType)      ResultType __cdecl __loadds
  99 #                       define JRI_CALLBACK                     __loadds
 100 #               else /* !WINDLL */
 101 #                       define JRI_PUBLIC_API(ResultType)       ResultType __cdecl __export
 102 #                       define JRI_PUBLIC_VAR(VarType)          VarType
 103 #                       define JRI_PUBLIC_VAR_EXP(VarType)      JRI_PUBLIC_VAR(VarType)
 104 #                       define JRI_PUBLIC_VAR_IMP(VarType)      JRI_PUBLIC_VAR(VarType)
 105 #                       define JRI_NATIVE_STUB(ResultType)      ResultType __cdecl __export
 106 #                       define JRI_CALLBACK                     __export
 107 #                   endif /* !WINDLL */
 108 #               endif /* !_WIN32 */
 109 #       elif defined(__BORLANDC__)
 110 #               if defined(WIN32) || defined(_WIN32)
 111 #                       define JRI_PUBLIC_API(ResultType)       __export ResultType
 112 #                       define JRI_PUBLIC_VAR(VarType)          VarType
 113 #                       define JRI_PUBLIC_VAR_EXP(VarType)      __export VarType
 114 #                       define JRI_PUBLIC_VAR_IMP(VarType)      __import VarType
 115 #                       define JRI_NATIVE_STUB(ResultType)       __export ResultType
 116 #                       define JRI_CALLBACK
 117 #               else /* !_WIN32 */
 118 #                       define JRI_PUBLIC_API(ResultType)       ResultType _cdecl _export _loadds
 119 #                       define JRI_PUBLIC_VAR(VarType)          VarType
 120 #                       define JRI_PUBLIC_VAR_EXP(VarType)      __cdecl __export VarType
 121 #                       define JRI_PUBLIC_VAR_IMP(VarType)      __cdecl __import VarType
 122 #                       define JRI_NATIVE_STUB(ResultType)      ResultType _cdecl _loadds
 123 #                       define JRI_CALLBACK                     _loadds
 124 #               endif
 125 #       else
 126 #               error Unsupported PC development environment.
 127 #       endif
 128 #       ifndef IS_LITTLE_ENDIAN
 129 #               define IS_LITTLE_ENDIAN
 130 #       endif
 131
 132 /* Mac */
 133 #elif defined (macintosh) || Macintosh || THINK_C
 134 #       if defined(__MWERKS__)                          /* Metrowerks */
 135 #               if !__option(enumsalwaysint)
 136 #                       error You need to define 'Enums Always Int' for your project.
 137 #               endif
 138 #               if defined(TARGET_CPU_68K) && !TARGET_RT_MAC_CFM
 139 #                       if !__option(fourbyteints)
 140 #                               error You need to define 'Struct Alignment: 68k' for your project.
 141 #                       endif
 142 #               endif /* !GENERATINGCFM */
 143 #               define JRI_PUBLIC_API(ResultType)       __declspec(export) ResultType
 144 #               define JRI_PUBLIC_VAR(VarType)          JRI_PUBLIC_API(VarType)
 145 #               define JRI_PUBLIC_VAR_EXP(VarType)      JRI_PUBLIC_API(VarType)
 146 #               define JRI_PUBLIC_VAR_IMP(VarType)      JRI_PUBLIC_API(VarType)
 147 #               define JRI_NATIVE_STUB(ResultType)      JRI_PUBLIC_API(ResultType)
 148 #       elif defined(__SC__)                            /* Symantec */
 149 #               error What are the Symantec defines? (warren@netscape.com)
 150 #       elif macintosh && applec                        /* MPW */
 151 #               error Please upgrade to the latest MPW compiler (SC).
 152 #       else
 153 #               error Unsupported Mac development environment.
 154 #       endif
 155 #       define JRI_CALLBACK
 156
 157 /* Unix or else */
 158 #else
 159 #       define JRI_PUBLIC_API(ResultType)               ResultType
 160 #   define JRI_PUBLIC_VAR(VarType)          VarType
 161 #   define JRI_PUBLIC_VAR_EXP(VarType)          JRI_PUBLIC_VAR(VarType)
 162 #   define JRI_PUBLIC_VAR_IMP(VarType)          JRI_PUBLIC_VAR(VarType)
 163 #   define JRI_NATIVE_STUB(ResultType)          ResultType
 164 #       define JRI_CALLBACK
 165 #endif
 166
 167 #ifndef FAR             /* for non-Win16 */
 168 #define FAR
 169 #endif
 170
 171 /******************************************************************************/
 172
 173 /* Java Scalar Types */
 174
 175 #if 0   /* now in jni.h */
 176 typedef short                   jchar;
 177 typedef short                   jshort;
 178 typedef float                   jfloat;
 179 typedef double                  jdouble;
 180 typedef juint                   jsize;
 181 #endif
 182
 183 /* moved from jni.h -- Sun's new jni.h doesn't have this anymore */
 184 #ifdef __cplusplus
 185 typedef class _jobject *jref;
 186 #else
 187 typedef struct _jobject *jref;
 188 #endif
 189
 190 typedef unsigned char   jbool;
 191 typedef signed char     jbyte;
 192 #ifdef IS_64 /* XXX ok for alpha, but not right on all 64-bit architectures */
 193 typedef unsigned int    juint;
 194 typedef int                             jint;
 195 #else
 196 typedef unsigned long   juint;
 197 typedef long                    jint;
 198 #endif
 199
 200 /*******************************************************************************
 201  * jlong : long long (64-bit signed integer type) support.
 202  ******************************************************************************/
 203
 204 /*
 205 ** Bit masking macros.  (n must be <= 31 to be portable)
 206 */
 207 #define JRI_BIT(n)                      ((juint)1 << (n))
 208 #define JRI_BITMASK(n)          (JRI_BIT(n) - 1)
 209
 210 #ifdef HAVE_LONG_LONG
 211
 212 #ifdef OSF1
 213
 214 /* long is default 64-bit on OSF1, -std1 does not allow long long */
 215 typedef long                  jlong;
 216 typedef unsigned long         julong;
 217 #define jlong_MAXINT          0x7fffffffffffffffL
 218 #define jlong_MININT          0x8000000000000000L
 219 #define jlong_ZERO            0x0L
 220
 221 #elif (defined(WIN32) || defined(_WIN32))
 222
 223 typedef LONGLONG              jlong;
 224 typedef DWORDLONG             julong;
 225 #define jlong_MAXINT          0x7fffffffffffffffi64
 226 #define jlong_MININT          0x8000000000000000i64
 227 #define jlong_ZERO            0x0i64
 228
 229 #else
 230
 231 typedef long long             jlong;
 232 typedef unsigned long long    julong;
 233 #define jlong_MAXINT          0x7fffffffffffffffLL
 234 #define jlong_MININT          0x8000000000000000LL
 235 #define jlong_ZERO            0x0LL
 236
 237 #endif
 238
 239 #define jlong_IS_ZERO(a)        ((a) == 0)
 240 #define jlong_EQ(a, b)          ((a) == (b))
 241 #define jlong_NE(a, b)          ((a) != (b))
 242 #define jlong_GE_ZERO(a)        ((a) >= 0)
 243 #define jlong_CMP(a, op, b)     ((a) op (b))
 244
 245 #define jlong_AND(r, a, b)      ((r) = (a) & (b))
 246 #define jlong_OR(r, a, b)       ((r) = (a) | (b))
 247 #define jlong_XOR(r, a, b)      ((r) = (a) ^ (b))
 248 #define jlong_OR2(r, a)         ((r) = (r) | (a))
 249 #define jlong_NOT(r, a)         ((r) = ~(a))
 250
 251 #define jlong_NEG(r, a)         ((r) = -(a))
 252 #define jlong_ADD(r, a, b)      ((r) = (a) + (b))
 253 #define jlong_SUB(r, a, b)      ((r) = (a) - (b))
 254
 255 #define jlong_MUL(r, a, b)      ((r) = (a) * (b))
 256 #define jlong_DIV(r, a, b)      ((r) = (a) / (b))
 257 #define jlong_MOD(r, a, b)      ((r) = (a) % (b))
 258
 259 #define jlong_SHL(r, a, b)      ((r) = (a) << (b))
 260 #define jlong_SHR(r, a, b)      ((r) = (a) >> (b))
 261 #define jlong_USHR(r, a, b)     ((r) = (julong)(a) >> (b))
 262 #define jlong_ISHL(r, a, b)     ((r) = ((jlong)(a)) << (b))
 263
 264 #define jlong_L2I(i, l)         ((i) = (int)(l))
 265 #define jlong_L2UI(ui, l)       ((ui) =(unsigned int)(l))
 266 #define jlong_L2F(f, l)         ((f) = (l))
 267 #define jlong_L2D(d, l)         ((d) = (l))
 268
 269 #define jlong_I2L(l, i)         ((l) = (i))
 270 #define jlong_UI2L(l, ui)       ((l) = (ui))
 271 #define jlong_F2L(l, f)         ((l) = (f))
 272 #define jlong_D2L(l, d)         ((l) = (d))
 273
 274 #define jlong_UDIVMOD(qp, rp, a, b)  \
 275     (*(qp) = ((julong)(a) / (b)), \
 276      *(rp) = ((julong)(a) % (b)))
 277
 278 #else  /* !HAVE_LONG_LONG */
 279
 280 typedef struct {
 281 #ifdef IS_LITTLE_ENDIAN
 282     juint lo, hi;
 283 #else
 284     juint hi, lo;
 285 #endif
 286 } jlong;
 287 typedef jlong                           julong;
 288
 289 extern jlong jlong_MAXINT, jlong_MININT, jlong_ZERO;
 290
 291 #define jlong_IS_ZERO(a)        (((a).hi == 0) && ((a).lo == 0))
 292 #define jlong_EQ(a, b)          (((a).hi == (b).hi) && ((a).lo == (b).lo))
 293 #define jlong_NE(a, b)          (((a).hi != (b).hi) || ((a).lo != (b).lo))
 294 #define jlong_GE_ZERO(a)        (((a).hi >> 31) == 0)
 295
 296 /*
 297  * NB: jlong_CMP and jlong_UCMP work only for strict relationals (<, >).
 298  */
 299 #define jlong_CMP(a, op, b)     (((int32)(a).hi op (int32)(b).hi) ||          \
 300                                  (((a).hi == (b).hi) && ((a).lo op (b).lo)))
 301 #define jlong_UCMP(a, op, b)    (((a).hi op (b).hi) ||                    \
 302                                  (((a).hi == (b).hi) && ((a).lo op (b).lo)))
 303
 304 #define jlong_AND(r, a, b)      ((r).lo = (a).lo & (b).lo,                    \
 305                                  (r).hi = (a).hi & (b).hi)
 306 #define jlong_OR(r, a, b)       ((r).lo = (a).lo | (b).lo,                    \
 307                                  (r).hi = (a).hi | (b).hi)
 308 #define jlong_XOR(r, a, b)      ((r).lo = (a).lo ^ (b).lo,                    \
 309                                  (r).hi = (a).hi ^ (b).hi)
 310 #define jlong_OR2(r, a)         ((r).lo = (r).lo | (a).lo,                    \
 311                                  (r).hi = (r).hi | (a).hi)
 312 #define jlong_NOT(r, a)         ((r).lo = ~(a).lo,                                \
 313                                  (r).hi = ~(a).hi)
 314
 315 #define jlong_NEG(r, a)         ((r).lo = -(int32)(a).lo,                     \
 316                                  (r).hi = -(int32)(a).hi - ((r).lo != 0))
 317 #define jlong_ADD(r, a, b) {                                              \
 318     jlong _a, _b;                                                         \
 319     _a = a; _b = b;                                                       \
 320     (r).lo = _a.lo + _b.lo;                                               \
 321     (r).hi = _a.hi + _b.hi + ((r).lo < _b.lo);                            \
 322 }
 323
 324 #define jlong_SUB(r, a, b) {                                              \
 325     jlong _a, _b;                                                         \
 326     _a = a; _b = b;                                                       \
 327     (r).lo = _a.lo - _b.lo;                                               \
 328     (r).hi = _a.hi - _b.hi - (_a.lo < _b.lo);                             \
 329 }                                                                         \
 330
 331 /*
 332  * Multiply 64-bit operands a and b to get 64-bit result r.
 333  * First multiply the low 32 bits of a and b to get a 64-bit result in r.
 334  * Then add the outer and inner products to r.hi.
 335  */
 336 #define jlong_MUL(r, a, b) {                                              \
 337     jlong _a, _b;                                                         \
 338     _a = a; _b = b;                                                       \
 339     jlong_MUL32(r, _a.lo, _b.lo);                                         \
 340     (r).hi += _a.hi * _b.lo + _a.lo * _b.hi;                              \
 341 }
 342
 343 /* XXX _jlong_lo16(a) = ((a) << 16 >> 16) is better on some archs (not on mips) */
 344 #define _jlong_lo16(a)          ((a) & JRI_BITMASK(16))
 345 #define _jlong_hi16(a)          ((a) >> 16)
 346
 347 /*
 348  * Multiply 32-bit operands a and b to get 64-bit result r.
 349  * Use polynomial expansion based on primitive field element (1 << 16).
 350  */
 351 #define jlong_MUL32(r, a, b) {                                            \
 352      juint _a1, _a0, _b1, _b0, _y0, _y1, _y2, _y3;                        \
 353      _a1 = _jlong_hi16(a), _a0 = _jlong_lo16(a);                          \
 354      _b1 = _jlong_hi16(b), _b0 = _jlong_lo16(b);                          \
 355      _y0 = _a0 * _b0;                                                     \
 356      _y1 = _a0 * _b1;                                                     \
 357      _y2 = _a1 * _b0;                                                     \
 358      _y3 = _a1 * _b1;                                                     \
 359      _y1 += _jlong_hi16(_y0);                   /* can't carry */         \
 360      _y1 += _y2;                                /* might carry */         \
 361      if (_y1 < _y2) _y3 += 1 << 16;             /* propagate */           \
 362      (r).lo = (_jlong_lo16(_y1) << 16) + _jlong_lo16(_y0);                \
 363      (r).hi = _y3 + _jlong_hi16(_y1);                                     \
 364 }
 365
 366 /*
 367  * Divide 64-bit unsigned operand a by 64-bit unsigned operand b, setting *qp
 368  * to the 64-bit unsigned quotient, and *rp to the 64-bit unsigned remainder.
 369  * Minimize effort if one of qp and rp is null.
 370  */
 371 #define jlong_UDIVMOD(qp, rp, a, b)     jlong_udivmod(qp, rp, a, b)
 372
 373 extern JRI_PUBLIC_API(void)
 374 jlong_udivmod(julong *qp, julong *rp, julong a, julong b);
 375
 376 #define jlong_DIV(r, a, b) {                                              \
 377     jlong _a, _b;                                                         \
 378     juint _negative = (int32)(a).hi < 0;                                  \
 379     if (_negative) {                                                      \
 380         jlong_NEG(_a, a);                                                     \
 381     } else {                                                              \
 382         _a = a;                                                               \
 383     }                                                                     \
 384     if ((int32)(b).hi < 0) {                                              \
 385         _negative ^= 1;                                                       \
 386         jlong_NEG(_b, b);                                                     \
 387     } else {                                                              \
 388         _b = b;                                                               \
 389     }                                                                     \
 390     jlong_UDIVMOD(&(r), 0, _a, _b);                                       \
 391     if (_negative)                                                        \
 392         jlong_NEG(r, r);                                                      \
 393 }
 394
 395 #define jlong_MOD(r, a, b) {                                              \
 396     jlong _a, _b;                                                         \
 397     juint _negative = (int32)(a).hi < 0;                                  \
 398     if (_negative) {                                                      \
 399         jlong_NEG(_a, a);                                                     \
 400     } else {                                                              \
 401         _a = a;                                                               \
 402     }                                                                     \
 403     if ((int32)(b).hi < 0) {                                              \
 404         jlong_NEG(_b, b);                                                     \
 405     } else {                                                              \
 406         _b = b;                                                               \
 407     }                                                                     \
 408     jlong_UDIVMOD(0, &(r), _a, _b);                                       \
 409     if (_negative)                                                        \
 410         jlong_NEG(r, r);                                                      \
 411 }
 412
 413 /*
 414  * NB: b is a juint, not jlong or julong, for the shift ops.
 415  */
 416 #define jlong_SHL(r, a, b) {                                              \
 417     if (b) {                                                              \
 418         jlong _a;                                                             \
 419         _a = a;                                                           \
 420         if ((b) < 32) {                                                   \
 421             (r).lo = _a.lo << (b);                                            \
 422             (r).hi = (_a.hi << (b)) | (_a.lo >> (32 - (b)));                  \
 423         } else {                                                              \
 424             (r).lo = 0;                                                       \
 425             (r).hi = _a.lo << ((b) & 31);                                     \
 426         }                                                                     \
 427     } else {                                                              \
 428         (r) = (a);                                                            \
 429     }                                                                     \
 430 }
 431
 432 /* a is an int32, b is int32, r is jlong */
 433 #define jlong_ISHL(r, a, b) {                                             \
 434     if (b) {                                                              \
 435         jlong _a;                                                             \
 436         _a.lo = (a);                                                          \
 437         _a.hi = 0;                                                            \
 438         if ((b) < 32) {                                                   \
 439             (r).lo = (a) << (b);                                              \
 440             (r).hi = ((a) >> (32 - (b)));                                     \
 441         } else {                                                              \
 442             (r).lo = 0;                                                       \
 443             (r).hi = (a) << ((b) & 31);                                       \
 444         }                                                                     \
 445     } else {                                                              \
 446         (r).lo = (a);                                                         \
 447         (r).hi = 0;                                                           \
 448     }                                                                     \
 449 }
 450
 451 #define jlong_SHR(r, a, b) {                                              \
 452     if (b) {                                                              \
 453         jlong _a;                                                             \
 454         _a = a;                                                           \
 455         if ((b) < 32) {                                                       \
 456             (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b));                  \
 457             (r).hi = (int32)_a.hi >> (b);                                     \
 458         } else {                                                              \
 459             (r).lo = (int32)_a.hi >> ((b) & 31);                              \
 460             (r).hi = (int32)_a.hi >> 31;                                      \
 461         }                                                                     \
 462     } else {                                                              \
 463         (r) = (a);                                                            \
 464     }                                                                     \
 465 }
 466
 467 #define jlong_USHR(r, a, b) {                                             \
 468     if (b) {                                                              \
 469         jlong _a;                                                             \
 470         _a = a;                                                           \
 471         if ((b) < 32) {                                                       \
 472             (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b));                  \
 473             (r).hi = _a.hi >> (b);                                            \
 474         } else {                                                              \
 475             (r).lo = _a.hi >> ((b) & 31);                                     \
 476             (r).hi = 0;                                                       \
 477         }                                                                     \
 478     } else {                                                              \
 479         (r) = (a);                                                            \
 480     }                                                                     \
 481 }
 482
 483 #define jlong_L2I(i, l)         ((i) = (l).lo)
 484 #define jlong_L2UI(ui, l)       ((ui) = (l).lo)
 485 #define jlong_L2F(f, l)         { double _d; jlong_L2D(_d, l); (f) = (float) _d; }
 486
 487 #define jlong_L2D(d, l) {                                                 \
 488     int32 _negative;                                                      \
 489     jlong _absval;                                                        \
 490                                                                           \
 491     _negative = (l).hi >> 31;                                             \
 492     if (_negative) {                                                      \
 493         jlong_NEG(_absval, l);                                                \
 494     } else {                                                              \
 495         _absval = l;                                                          \
 496     }                                                                     \
 497     (d) = (double)_absval.hi * 4.294967296e9 + _absval.lo;                \
 498     if (_negative)                                                        \
 499         (d) = -(d);                                                           \
 500 }
 501
 502 #define jlong_I2L(l, i)         ((l).hi = (i) >> 31, (l).lo = (i))
 503 #define jlong_UI2L(l, ui)       ((l).hi = 0, (l).lo = (ui))
 504 #define jlong_F2L(l, f)         { double _d = (double) f; jlong_D2L(l, _d); }
 505
 506 #define jlong_D2L(l, d) {                                                 \
 507     int _negative;                                                        \
 508     double _absval, _d_hi;                                                \
 509     jlong _lo_d;                                                          \
 510                                                                           \
 511     _negative = ((d) < 0);                                                \
 512     _absval = _negative ? -(d) : (d);                                     \
 513                                                                           \
 514     (l).hi = (juint)(_absval / 4.294967296e9);                            \
 515     (l).lo = 0;                                                           \
 516     jlong_L2D(_d_hi, l);                                                  \
 517     _absval -= _d_hi;                                                     \
 518     _lo_d.hi = 0;                                                         \
 519     if (_absval < 0) {                                                    \
 520         _lo_d.lo = (juint) -_absval;                                          \
 521         jlong_SUB(l, l, _lo_d);                                               \
 522     } else {                                                              \
 523         _lo_d.lo = (juint) _absval;                                           \
 524         jlong_ADD(l, l, _lo_d);                                               \
 525     }                                                                     \
 526                                                                           \
 527     if (_negative)                                                        \
 528         jlong_NEG(l, l);                                                      \
 529 }
 530
 531 #endif /* !HAVE_LONG_LONG */
 532
 533 /******************************************************************************/
 534
 535 #ifdef HAVE_ALIGNED_LONGLONGS
 536 #define JRI_GET_INT64(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
 537                               ((_t).x[1] = ((jint*)(_addr))[1]),      \
 538                               (_t).l )
 539 #define JRI_SET_INT64(_t, _addr, _v) ( (_t).l = (_v),                \
 540                                    ((jint*)(_addr))[0] = (_t).x[0], \
 541                                    ((jint*)(_addr))[1] = (_t).x[1] )
 542 #else
 543 #define JRI_GET_INT64(_t,_addr) (*(jlong*)(_addr))
 544 #define JRI_SET_INT64(_t, _addr, _v) (*(jlong*)(_addr) = (_v))
 545 #endif
 546
 547 /* If double's must be aligned on doubleword boundaries then define this */
 548 #ifdef HAVE_ALIGNED_DOUBLES
 549 #define JRI_GET_DOUBLE(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
 550                                ((_t).x[1] = ((jint*)(_addr))[1]),      \
 551                                (_t).d )
 552 #define JRI_SET_DOUBLE(_t, _addr, _v) ( (_t).d = (_v),                \
 553                                     ((jint*)(_addr))[0] = (_t).x[0], \
 554                                     ((jint*)(_addr))[1] = (_t).x[1] )
 555 #else
 556 #define JRI_GET_DOUBLE(_t,_addr) (*(jdouble*)(_addr))
 557 #define JRI_SET_DOUBLE(_t, _addr, _v) (*(jdouble*)(_addr) = (_v))
 558 #endif
 559
 560 /******************************************************************************/
 561 #ifdef __cplusplus
 562 }
 563 #endif
 564 #endif /* JRI_MD_H */
 565 /******************************************************************************/