apps/nsplugins/sdk/jri_md.h

   1 //krazy:excludeall=license,copyright
   2 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   3 /* ***** BEGIN LICENSE BLOCK *****
   4  * Version: NPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Netscape Public License
   7  * Version 1.1 (the "License"); you may not use this file except in
   8  * compliance with the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/NPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is mozilla.org code.
  17  *
  18  * The Initial Developer of the Original Code is
  19  * Netscape Communications Corporation.
  20  * Portions created by the Initial Developer are Copyright (C) 1998
  21  * the Initial Developer. All Rights Reserved.
  22  *
  23  * Contributor(s):
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
  29  * of those above. If you wish to allow use of your version of this file only
  30  * under the terms of either the GPL or the LGPL, and not to allow others to
  31  * use your version of this file under the terms of the NPL, indicate your
  32  * decision by deleting the provisions above and replace them with the notice
  33  * and other provisions required by the GPL or the LGPL. If you do not delete
  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the NPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 /*******************************************************************************
  40  * Java Runtime Interface - Machine Dependent Types
  41  ******************************************************************************/
  42
  43 #ifndef JRI_MD_H
  44 #define JRI_MD_H
  45
  46 #include <assert.h>
  47 #include "prtypes.h" /* Needed for HAS_LONG_LONG ifdefs & _declspec */
  48
  49 #ifdef __cplusplus
  50 extern "C" {
  51 #endif
  52
  53 /*******************************************************************************
  54  * WHAT'S UP WITH THIS FILE?
  55  *
  56  * This is where we define the mystical JRI_PUBLIC_API macro that works on all
  57  * platforms. If you're running with Visual C++, Symantec C, or Borland's
  58  * development environment on the PC, you're all set. Or if you're on the Mac
  59  * with Metrowerks, Symantec or MPW with SC you're ok too. For UNIX it shouldn't
  60  * matter.
  61  *
  62  * On UNIX though you probably care about a couple of other symbols though:
  63  *      IS_LITTLE_ENDIAN must be defined for little-endian systems
  64  *      HAVE_LONG_LONG must be defined on systems that have 'long long' integers
  65  *      HAVE_ALIGNED_LONGLONGS must be defined if long-longs must be 8 byte aligned
  66  *      HAVE_ALIGNED_DOUBLES must be defined if doubles must be 8 byte aligned
  67  *      IS_64 must be defined on 64-bit machines (like Dec Alpha)
  68  ******************************************************************************/
  69
  70 /* DLL Entry modifiers... */
  71
  72 /* PC */
  73 #if defined(XP_OS2)
  74 #  ifdef XP_OS2_VACPP
  75 #         define JRI_PUBLIC_API(ResultType)         ResultType _Optlink
  76 #         define JRI_PUBLIC_VAR(VarType)        VarType
  77 #     define JRI_CALLBACK
  78 #  else
  79 #         define JRI_PUBLIC_API(ResultType)         ResultType
  80 #         define JRI_PUBLIC_VAR(VarType)        VarType
  81 #     define JRI_CALLBACK
  82 #  endif
  83 #elif defined(XP_WIN) || defined(_WINDOWS) || defined(WIN32) || defined(_WIN32)
  84 #       include <windows.h>
  85 #       if defined(_MSC_VER) || defined(__GNUC__)
  86 #               if defined(WIN32) || defined(_WIN32)
  87 #                       define JRI_PUBLIC_API(ResultType)       _declspec(dllexport) ResultType
  88 #                       define JRI_PUBLIC_VAR(VarType)          VarType
  89 #                       define JRI_PUBLIC_VAR_EXP(VarType)      _declspec(dllexport) VarType
  90 #                       define JRI_PUBLIC_VAR_IMP(VarType)      _declspec(dllimport) VarType
  91 #                       define JRI_NATIVE_STUB(ResultType)      _declspec(dllexport) ResultType
  92 #                       define JRI_CALLBACK
  93 #               else /* !_WIN32 */
  94 #                   if defined(_WINDLL)
  95 #                       define JRI_PUBLIC_API(ResultType)       ResultType __cdecl __export __loadds
  96 #                       define JRI_PUBLIC_VAR(VarType)          VarType
  97 #                       define JRI_PUBLIC_VAR_EXP(VarType)      JRI_PUBLIC_VAR(VarType)
  98 #                       define JRI_PUBLIC_VAR_IMP(VarType)      JRI_PUBLIC_VAR(VarType)
  99 #                       define JRI_NATIVE_STUB(ResultType)      ResultType __cdecl __loadds
 100 #                       define JRI_CALLBACK                     __loadds
 101 #               else /* !WINDLL */
 102 #                       define JRI_PUBLIC_API(ResultType)       ResultType __cdecl __export
 103 #                       define JRI_PUBLIC_VAR(VarType)          VarType
 104 #                       define JRI_PUBLIC_VAR_EXP(VarType)      JRI_PUBLIC_VAR(VarType)
 105 #                       define JRI_PUBLIC_VAR_IMP(VarType)      JRI_PUBLIC_VAR(VarType)
 106 #                       define JRI_NATIVE_STUB(ResultType)      ResultType __cdecl __export
 107 #                       define JRI_CALLBACK                     __export
 108 #                   endif /* !WINDLL */
 109 #               endif /* !_WIN32 */
 110 #       elif defined(__BORLANDC__)
 111 #               if defined(WIN32) || defined(_WIN32)
 112 #                       define JRI_PUBLIC_API(ResultType)       __export ResultType
 113 #                       define JRI_PUBLIC_VAR(VarType)          VarType
 114 #                       define JRI_PUBLIC_VAR_EXP(VarType)      __export VarType
 115 #                       define JRI_PUBLIC_VAR_IMP(VarType)      __import VarType
 116 #                       define JRI_NATIVE_STUB(ResultType)       __export ResultType
 117 #                       define JRI_CALLBACK
 118 #               else /* !_WIN32 */
 119 #                       define JRI_PUBLIC_API(ResultType)       ResultType _cdecl _export _loadds
 120 #                       define JRI_PUBLIC_VAR(VarType)          VarType
 121 #                       define JRI_PUBLIC_VAR_EXP(VarType)      __cdecl __export VarType
 122 #                       define JRI_PUBLIC_VAR_IMP(VarType)      __cdecl __import VarType
 123 #                       define JRI_NATIVE_STUB(ResultType)      ResultType _cdecl _loadds
 124 #                       define JRI_CALLBACK                     _loadds
 125 #               endif
 126 #       else
 127 #               error Unsupported PC development environment.
 128 #       endif
 129 #       ifndef IS_LITTLE_ENDIAN
 130 #               define IS_LITTLE_ENDIAN
 131 #       endif
 132
 133 /* Mac */
 134 #elif defined (macintosh) || defined(Macintosh) || defined(THINK_C)
 135 #       if defined(__MWERKS__)                          /* Metrowerks */
 136 #               if !__option(enumsalwaysint)
 137 #                       error You need to define 'Enums Always Int' for your project.
 138 #               endif
 139 #               if defined(TARGET_CPU_68K) && !TARGET_RT_MAC_CFM
 140 #                       if !__option(fourbyteints)
 141 #                               error You need to define 'Struct Alignment: 68k' for your project.
 142 #                       endif
 143 #               endif /* !GENERATINGCFM */
 144 #               define JRI_PUBLIC_API(ResultType)       __declspec(export) ResultType
 145 #               define JRI_PUBLIC_VAR(VarType)          JRI_PUBLIC_API(VarType)
 146 #               define JRI_PUBLIC_VAR_EXP(VarType)      JRI_PUBLIC_API(VarType)
 147 #               define JRI_PUBLIC_VAR_IMP(VarType)      JRI_PUBLIC_API(VarType)
 148 #               define JRI_NATIVE_STUB(ResultType)      JRI_PUBLIC_API(ResultType)
 149 #       elif defined(__SC__)                            /* Symantec */
 150 #               error What are the Symantec defines? (warren@netscape.com)
 151 #       elif macintosh && applec                        /* MPW */
 152 #               error Please upgrade to the latest MPW compiler (SC).
 153 #       else
 154 #               error Unsupported Mac development environment.
 155 #       endif
 156 #       define JRI_CALLBACK
 157
 158 /* Unix or else */
 159 #else
 160 #       define JRI_PUBLIC_API(ResultType)               ResultType
 161 #   define JRI_PUBLIC_VAR(VarType)          VarType
 162 #   define JRI_PUBLIC_VAR_EXP(VarType)          JRI_PUBLIC_VAR(VarType)
 163 #   define JRI_PUBLIC_VAR_IMP(VarType)          JRI_PUBLIC_VAR(VarType)
 164 #   define JRI_NATIVE_STUB(ResultType)          ResultType
 165 #       define JRI_CALLBACK
 166 #endif
 167
 168 #ifndef FAR             /* for non-Win16 */
 169 #define FAR
 170 #endif
 171
 172 /******************************************************************************/
 173
 174 /* Java Scalar Types */
 175
 176 #if 0   /* now in jni.h */
 177 typedef short                   jchar;
 178 typedef short                   jshort;
 179 typedef float                   jfloat;
 180 typedef double                  jdouble;
 181 typedef juint                   jsize;
 182 #endif
 183
 184 /* moved from jni.h -- Sun's new jni.h doesn't have this anymore */
 185 #ifdef __cplusplus
 186 typedef class _jobject *jref;
 187 #else
 188 typedef struct _jobject *jref;
 189 #endif
 190
 191 typedef unsigned char   jbool;
 192 typedef signed char     jbyte;
 193 #ifdef IS_64 /* XXX ok for alpha, but not right on all 64-bit architectures */
 194 typedef unsigned int    juint;
 195 typedef int                             jint;
 196 #else
 197 typedef unsigned long   juint;
 198 typedef long                    jint;
 199 #endif
 200
 201 /*******************************************************************************
 202  * jlong : long long (64-bit signed integer type) support.
 203  ******************************************************************************/
 204
 205 /*
 206 ** Bit masking macros.  (n must be <= 31 to be portable)
 207 */
 208 #define JRI_BIT(n)                      ((juint)1 << (n))
 209 #define JRI_BITMASK(n)          (JRI_BIT(n) - 1)
 210
 211 #ifdef HAVE_LONG_LONG
 212
 213 #ifdef OSF1
 214
 215 /* long is default 64-bit on OSF1, -std1 does not allow long long */
 216 typedef long                  jlong;
 217 typedef unsigned long         julong;
 218 #define jlong_MAXINT          0x7fffffffffffffffL
 219 #define jlong_MININT          0x8000000000000000L
 220 #define jlong_ZERO            0x0L
 221
 222 #elif (defined(WIN32) || defined(_WIN32))
 223
 224 typedef LONGLONG              jlong;
 225 typedef DWORDLONG             julong;
 226 #define jlong_MAXINT          0x7fffffffffffffffi64
 227 #define jlong_MININT          0x8000000000000000i64
 228 #define jlong_ZERO            0x0i64
 229
 230 #else
 231
 232 typedef long long             jlong;
 233 typedef unsigned long long    julong;
 234 #define jlong_MAXINT          0x7fffffffffffffffLL
 235 #define jlong_MININT          0x8000000000000000LL
 236 #define jlong_ZERO            0x0LL
 237
 238 #endif
 239
 240 #define jlong_IS_ZERO(a)        ((a) == 0)
 241 #define jlong_EQ(a, b)          ((a) == (b))
 242 #define jlong_NE(a, b)          ((a) != (b))
 243 #define jlong_GE_ZERO(a)        ((a) >= 0)
 244 #define jlong_CMP(a, op, b)     ((a) op (b))
 245
 246 #define jlong_AND(r, a, b)      ((r) = (a) & (b))
 247 #define jlong_OR(r, a, b)       ((r) = (a) | (b))
 248 #define jlong_XOR(r, a, b)      ((r) = (a) ^ (b))
 249 #define jlong_OR2(r, a)         ((r) = (r) | (a))
 250 #define jlong_NOT(r, a)         ((r) = ~(a))
 251
 252 #define jlong_NEG(r, a)         ((r) = -(a))
 253 #define jlong_ADD(r, a, b)      ((r) = (a) + (b))
 254 #define jlong_SUB(r, a, b)      ((r) = (a) - (b))
 255
 256 #define jlong_MUL(r, a, b)      ((r) = (a) * (b))
 257 #define jlong_DIV(r, a, b)      ((r) = (a) / (b))
 258 #define jlong_MOD(r, a, b)      ((r) = (a) % (b))
 259
 260 #define jlong_SHL(r, a, b)      ((r) = (a) << (b))
 261 #define jlong_SHR(r, a, b)      ((r) = (a) >> (b))
 262 #define jlong_USHR(r, a, b)     ((r) = (julong)(a) >> (b))
 263 #define jlong_ISHL(r, a, b)     ((r) = ((jlong)(a)) << (b))
 264
 265 #define jlong_L2I(i, l)         ((i) = (int)(l))
 266 #define jlong_L2UI(ui, l)       ((ui) =(unsigned int)(l))
 267 #define jlong_L2F(f, l)         ((f) = (l))
 268 #define jlong_L2D(d, l)         ((d) = (l))
 269
 270 #define jlong_I2L(l, i)         ((l) = (i))
 271 #define jlong_UI2L(l, ui)       ((l) = (ui))
 272 #define jlong_F2L(l, f)         ((l) = (f))
 273 #define jlong_D2L(l, d)         ((l) = (d))
 274
 275 #define jlong_UDIVMOD(qp, rp, a, b)  \
 276     (*(qp) = ((julong)(a) / (b)), \
 277      *(rp) = ((julong)(a) % (b)))
 278
 279 #else  /* !HAVE_LONG_LONG */
 280
 281 typedef struct {
 282 #ifdef IS_LITTLE_ENDIAN
 283     juint lo, hi;
 284 #else
 285     juint hi, lo;
 286 #endif
 287 } jlong;
 288 typedef jlong                           julong;
 289
 290 extern jlong jlong_MAXINT, jlong_MININT, jlong_ZERO;
 291
 292 #define jlong_IS_ZERO(a)        (((a).hi == 0) && ((a).lo == 0))
 293 #define jlong_EQ(a, b)          (((a).hi == (b).hi) && ((a).lo == (b).lo))
 294 #define jlong_NE(a, b)          (((a).hi != (b).hi) || ((a).lo != (b).lo))
 295 #define jlong_GE_ZERO(a)        (((a).hi >> 31) == 0)
 296
 297 /*
 298  * NB: jlong_CMP and jlong_UCMP work only for strict relationals (<, >).
 299  */
 300 #define jlong_CMP(a, op, b)     (((int32)(a).hi op (int32)(b).hi) ||          \
 301                                  (((a).hi == (b).hi) && ((a).lo op (b).lo)))
 302 #define jlong_UCMP(a, op, b)    (((a).hi op (b).hi) ||                    \
 303                                  (((a).hi == (b).hi) && ((a).lo op (b).lo)))
 304
 305 #define jlong_AND(r, a, b)      ((r).lo = (a).lo & (b).lo,                    \
 306                                  (r).hi = (a).hi & (b).hi)
 307 #define jlong_OR(r, a, b)       ((r).lo = (a).lo | (b).lo,                    \
 308                                  (r).hi = (a).hi | (b).hi)
 309 #define jlong_XOR(r, a, b)      ((r).lo = (a).lo ^ (b).lo,                    \
 310                                  (r).hi = (a).hi ^ (b).hi)
 311 #define jlong_OR2(r, a)         ((r).lo = (r).lo | (a).lo,                    \
 312                                  (r).hi = (r).hi | (a).hi)
 313 #define jlong_NOT(r, a)         ((r).lo = ~(a).lo,                                \
 314                                  (r).hi = ~(a).hi)
 315
 316 #define jlong_NEG(r, a)         ((r).lo = -(int32)(a).lo,                     \
 317                                  (r).hi = -(int32)(a).hi - ((r).lo != 0))
 318 #define jlong_ADD(r, a, b) {                                              \
 319     jlong _a, _b;                                                         \
 320     _a = a; _b = b;                                                       \
 321     (r).lo = _a.lo + _b.lo;                                               \
 322     (r).hi = _a.hi + _b.hi + ((r).lo < _b.lo);                            \
 323 }
 324
 325 #define jlong_SUB(r, a, b) {                                              \
 326     jlong _a, _b;                                                         \
 327     _a = a; _b = b;                                                       \
 328     (r).lo = _a.lo - _b.lo;                                               \
 329     (r).hi = _a.hi - _b.hi - (_a.lo < _b.lo);                             \
 330 }                                                                         \
 331
 332 /*
 333  * Multiply 64-bit operands a and b to get 64-bit result r.
 334  * First multiply the low 32 bits of a and b to get a 64-bit result in r.
 335  * Then add the outer and inner products to r.hi.
 336  */
 337 #define jlong_MUL(r, a, b) {                                              \
 338     jlong _a, _b;                                                         \
 339     _a = a; _b = b;                                                       \
 340     jlong_MUL32(r, _a.lo, _b.lo);                                         \
 341     (r).hi += _a.hi * _b.lo + _a.lo * _b.hi;                              \
 342 }
 343
 344 /* XXX _jlong_lo16(a) = ((a) << 16 >> 16) is better on some archs (not on mips) */
 345 #define _jlong_lo16(a)          ((a) & JRI_BITMASK(16))
 346 #define _jlong_hi16(a)          ((a) >> 16)
 347
 348 /*
 349  * Multiply 32-bit operands a and b to get 64-bit result r.
 350  * Use polynomial expansion based on primitive field element (1 << 16).
 351  */
 352 #define jlong_MUL32(r, a, b) {                                            \
 353      juint _a1, _a0, _b1, _b0, _y0, _y1, _y2, _y3;                        \
 354      _a1 = _jlong_hi16(a), _a0 = _jlong_lo16(a);                          \
 355      _b1 = _jlong_hi16(b), _b0 = _jlong_lo16(b);                          \
 356      _y0 = _a0 * _b0;                                                     \
 357      _y1 = _a0 * _b1;                                                     \
 358      _y2 = _a1 * _b0;                                                     \
 359      _y3 = _a1 * _b1;                                                     \
 360      _y1 += _jlong_hi16(_y0);                   /* can't carry */         \
 361      _y1 += _y2;                                /* might carry */         \
 362      if (_y1 < _y2) _y3 += 1 << 16;             /* propagate */           \
 363      (r).lo = (_jlong_lo16(_y1) << 16) + _jlong_lo16(_y0);                \
 364      (r).hi = _y3 + _jlong_hi16(_y1);                                     \
 365 }
 366
 367 /*
 368  * Divide 64-bit unsigned operand a by 64-bit unsigned operand b, setting *qp
 369  * to the 64-bit unsigned quotient, and *rp to the 64-bit unsigned remainder.
 370  * Minimize effort if one of qp and rp is null.
 371  */
 372 #define jlong_UDIVMOD(qp, rp, a, b)     jlong_udivmod(qp, rp, a, b)
 373
 374 extern JRI_PUBLIC_API(void)
 375 jlong_udivmod(julong *qp, julong *rp, julong a, julong b);
 376
 377 #define jlong_DIV(r, a, b) {                                              \
 378     jlong _a, _b;                                                         \
 379     juint _negative = (int32)(a).hi < 0;                                  \
 380     if (_negative) {                                                      \
 381         jlong_NEG(_a, a);                                                     \
 382     } else {                                                              \
 383         _a = a;                                                               \
 384     }                                                                     \
 385     if ((int32)(b).hi < 0) {                                              \
 386         _negative ^= 1;                                                       \
 387         jlong_NEG(_b, b);                                                     \
 388     } else {                                                              \
 389         _b = b;                                                               \
 390     }                                                                     \
 391     jlong_UDIVMOD(&(r), 0, _a, _b);                                       \
 392     if (_negative)                                                        \
 393         jlong_NEG(r, r);                                                      \
 394 }
 395
 396 #define jlong_MOD(r, a, b) {                                              \
 397     jlong _a, _b;                                                         \
 398     juint _negative = (int32)(a).hi < 0;                                  \
 399     if (_negative) {                                                      \
 400         jlong_NEG(_a, a);                                                     \
 401     } else {                                                              \
 402         _a = a;                                                               \
 403     }                                                                     \
 404     if ((int32)(b).hi < 0) {                                              \
 405         jlong_NEG(_b, b);                                                     \
 406     } else {                                                              \
 407         _b = b;                                                               \
 408     }                                                                     \
 409     jlong_UDIVMOD(0, &(r), _a, _b);                                       \
 410     if (_negative)                                                        \
 411         jlong_NEG(r, r);                                                      \
 412 }
 413
 414 /*
 415  * NB: b is a juint, not jlong or julong, for the shift ops.
 416  */
 417 #define jlong_SHL(r, a, b) {                                              \
 418     if (b) {                                                              \
 419         jlong _a;                                                             \
 420         _a = a;                                                           \
 421         if ((b) < 32) {                                                   \
 422             (r).lo = _a.lo << (b);                                            \
 423             (r).hi = (_a.hi << (b)) | (_a.lo >> (32 - (b)));                  \
 424         } else {                                                              \
 425             (r).lo = 0;                                                       \
 426             (r).hi = _a.lo << ((b) & 31);                                     \
 427         }                                                                     \
 428     } else {                                                              \
 429         (r) = (a);                                                            \
 430     }                                                                     \
 431 }
 432
 433 /* a is an int32, b is int32, r is jlong */
 434 #define jlong_ISHL(r, a, b) {                                             \
 435     if (b) {                                                              \
 436         jlong _a;                                                             \
 437         _a.lo = (a);                                                          \
 438         _a.hi = 0;                                                            \
 439         if ((b) < 32) {                                                   \
 440             (r).lo = (a) << (b);                                              \
 441             (r).hi = ((a) >> (32 - (b)));                                     \
 442         } else {                                                              \
 443             (r).lo = 0;                                                       \
 444             (r).hi = (a) << ((b) & 31);                                       \
 445         }                                                                     \
 446     } else {                                                              \
 447         (r).lo = (a);                                                         \
 448         (r).hi = 0;                                                           \
 449     }                                                                     \
 450 }
 451
 452 #define jlong_SHR(r, a, b) {                                              \
 453     if (b) {                                                              \
 454         jlong _a;                                                             \
 455         _a = a;                                                           \
 456         if ((b) < 32) {                                                       \
 457             (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b));                  \
 458             (r).hi = (int32)_a.hi >> (b);                                     \
 459         } else {                                                              \
 460             (r).lo = (int32)_a.hi >> ((b) & 31);                              \
 461             (r).hi = (int32)_a.hi >> 31;                                      \
 462         }                                                                     \
 463     } else {                                                              \
 464         (r) = (a);                                                            \
 465     }                                                                     \
 466 }
 467
 468 #define jlong_USHR(r, a, b) {                                             \
 469     if (b) {                                                              \
 470         jlong _a;                                                             \
 471         _a = a;                                                           \
 472         if ((b) < 32) {                                                       \
 473             (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b));                  \
 474             (r).hi = _a.hi >> (b);                                            \
 475         } else {                                                              \
 476             (r).lo = _a.hi >> ((b) & 31);                                     \
 477             (r).hi = 0;                                                       \
 478         }                                                                     \
 479     } else {                                                              \
 480         (r) = (a);                                                            \
 481     }                                                                     \
 482 }
 483
 484 #define jlong_L2I(i, l)         ((i) = (l).lo)
 485 #define jlong_L2UI(ui, l)       ((ui) = (l).lo)
 486 #define jlong_L2F(f, l)         { double _d; jlong_L2D(_d, l); (f) = (float) _d; }
 487
 488 #define jlong_L2D(d, l) {                                                 \
 489     int32 _negative;                                                      \
 490     jlong _absval;                                                        \
 491                                                                           \
 492     _negative = (l).hi >> 31;                                             \
 493     if (_negative) {                                                      \
 494         jlong_NEG(_absval, l);                                                \
 495     } else {                                                              \
 496         _absval = l;                                                          \
 497     }                                                                     \
 498     (d) = (double)_absval.hi * 4.294967296e9 + _absval.lo;                \
 499     if (_negative)                                                        \
 500         (d) = -(d);                                                           \
 501 }
 502
 503 #define jlong_I2L(l, i)         ((l).hi = (i) >> 31, (l).lo = (i))
 504 #define jlong_UI2L(l, ui)       ((l).hi = 0, (l).lo = (ui))
 505 #define jlong_F2L(l, f)         { double _d = (double) f; jlong_D2L(l, _d); }
 506
 507 #define jlong_D2L(l, d) {                                                 \
 508     int _negative;                                                        \
 509     double _absval, _d_hi;                                                \
 510     jlong _lo_d;                                                          \
 511                                                                           \
 512     _negative = ((d) < 0);                                                \
 513     _absval = _negative ? -(d) : (d);                                     \
 514                                                                           \
 515     (l).hi = (juint)(_absval / 4.294967296e9);                            \
 516     (l).lo = 0;                                                           \
 517     jlong_L2D(_d_hi, l);                                                  \
 518     _absval -= _d_hi;                                                     \
 519     _lo_d.hi = 0;                                                         \
 520     if (_absval < 0) {                                                    \
 521         _lo_d.lo = (juint) -_absval;                                          \
 522         jlong_SUB(l, l, _lo_d);                                               \
 523     } else {                                                              \
 524         _lo_d.lo = (juint) _absval;                                           \
 525         jlong_ADD(l, l, _lo_d);                                               \
 526     }                                                                     \
 527                                                                           \
 528     if (_negative)                                                        \
 529         jlong_NEG(l, l);                                                      \
 530 }
 531
 532 #endif /* !HAVE_LONG_LONG */
 533
 534 /******************************************************************************/
 535
 536 #ifdef HAVE_ALIGNED_LONGLONGS
 537 #define JRI_GET_INT64(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
 538                               ((_t).x[1] = ((jint*)(_addr))[1]),      \
 539                               (_t).l )
 540 #define JRI_SET_INT64(_t, _addr, _v) ( (_t).l = (_v),                \
 541                                    ((jint*)(_addr))[0] = (_t).x[0], \
 542                                    ((jint*)(_addr))[1] = (_t).x[1] )
 543 #else
 544 #define JRI_GET_INT64(_t,_addr) (*(jlong*)(_addr))
 545 #define JRI_SET_INT64(_t, _addr, _v) (*(jlong*)(_addr) = (_v))
 546 #endif
 547
 548 /* If double's must be aligned on doubleword boundaries then define this */
 549 #ifdef HAVE_ALIGNED_DOUBLES
 550 #define JRI_GET_DOUBLE(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
 551                                ((_t).x[1] = ((jint*)(_addr))[1]),      \
 552                                (_t).d )
 553 #define JRI_SET_DOUBLE(_t, _addr, _v) ( (_t).d = (_v),                \
 554                                     ((jint*)(_addr))[0] = (_t).x[0], \
 555                                     ((jint*)(_addr))[1] = (_t).x[1] )
 556 #else
 557 #define JRI_GET_DOUBLE(_t,_addr) (*(jdouble*)(_addr))
 558 #define JRI_SET_DOUBLE(_t, _addr, _v) (*(jdouble*)(_addr) = (_v))
 559 #endif
 560
 561 /******************************************************************************/
 562 #ifdef __cplusplus
 563 }
 564 #endif
 565 #endif /* JRI_MD_H */
 566 /******************************************************************************/