--- a
+++ b/src/jri_md.h
@@ -0,0 +1,500 @@
+/* -*- Mode: C; tab-width: 4; -*- */
+/*******************************************************************************
+ * Java Runtime Interface - Machine Dependent Types
+ * Copyright (c) 1996 Netscape Communications Corporation. All rights reserved.
+ ******************************************************************************/
+ 
+#ifndef JRI_MD_H
+#define JRI_MD_H
+
+#include <assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*******************************************************************************
+ * WHAT'S UP WITH THIS FILE?
+ * 
+ * This is where we define the mystical JRI_PUBLIC_API macro that works on all
+ * platforms. If you're running with Visual C++, Symantec C, or Borland's 
+ * development environment on the PC, you're all set. Or if you're on the Mac
+ * with Metrowerks, Symantec or MPW with SC you're ok too. For UNIX it shouldn't
+ * matter.
+ *
+ * On UNIX though you probably care about a couple of other symbols though:
+ *	IS_LITTLE_ENDIAN must be defined for little-endian systems
+ *	HAVE_LONG_LONG must be defined on systems that have 'long long' integers
+ *	HAVE_ALIGNED_LONGLONGS must be defined if long-longs must be 8 byte aligned
+ *	HAVE_ALIGNED_DOUBLES must be defined if doubles must be 8 byte aligned
+ *	IS_64 must be defined on 64-bit machines (like Dec Alpha)
+ ******************************************************************************/
+
+/* DLL Entry modifiers... */
+
+/* PC */
+#if defined(XP_PC) || defined(_WINDOWS) || defined(WIN32) || defined(_WIN32)
+#	include <windows.h>
+#	if defined(_MSC_VER)
+#		if defined(WIN32) || defined(_WIN32)
+#			define JRI_PUBLIC_API(ResultType)	_declspec(dllexport) ResultType
+#			define JRI_CALLBACK
+#		else /* !_WIN32 */
+#		    if defined(_WINDLL)
+#			define JRI_PUBLIC_API(ResultType)	ResultType __cdecl __export __loadds 
+#			define JRI_CALLBACK			__loadds
+#		    else /* !WINDLL */
+#			define JRI_PUBLIC_API(ResultType)	ResultType __cdecl __export
+#			define JRI_CALLBACK			__export
+#                   endif /* !WINDLL */
+#		endif /* !_WIN32 */
+#	elif defined(__BORLANDC__)
+#		if defined(WIN32) || defined(_WIN32)
+#			define JRI_PUBLIC_API(ResultType)	__export ResultType
+#			define JRI_CALLBACK
+#		else /* !_WIN32 */
+#			define JRI_PUBLIC_API(ResultType)	ResultType _cdecl _export _loadds 
+#			define JRI_CALLBACK					_loadds
+#		endif
+#	else
+#		error Unsupported PC development environment.	
+#	endif
+#	ifndef IS_LITTLE_ENDIAN
+#		define IS_LITTLE_ENDIAN
+#	endif
+
+/* Mac */
+#elif macintosh || Macintosh || THINK_C
+#	if defined(__MWERKS__)				/* Metrowerks */
+#		if !__option(enumsalwaysint)
+#			error You need to define 'Enums Always Int' for your project.
+#		endif
+#		if defined(GENERATING68K) && !GENERATINGCFM 
+#			if !__option(fourbyteints) 
+#				error You need to define 'Struct Alignment: 68k' for your project.
+#			endif
+#		endif /* !GENERATINGCFM */
+#	elif defined(__SC__)				/* Symantec */
+#		error What are the Symantec defines? (warren@netscape.com)
+#	elif macintosh && applec			/* MPW */
+#		error Please upgrade to the latest MPW compiler (SC).
+#	else
+#		error Unsupported Mac development environment.
+#	endif
+#	define JRI_PUBLIC_API(ResultType)		ResultType
+#	define JRI_CALLBACK
+
+/* Unix or else */
+#else
+#	define JRI_PUBLIC_API(ResultType)		ResultType
+#	define JRI_CALLBACK
+#endif
+
+#ifndef FAR		/* for non-Win16 */
+#define FAR
+#endif
+
+/******************************************************************************/
+
+/* Java Scalar Types */
+
+typedef unsigned char	jbool;
+typedef char			jbyte;
+typedef short			jchar;
+typedef short			jshort;
+#ifdef IS_64 /* XXX ok for alpha, but not right on all 64-bit architectures */
+typedef unsigned int	juint;
+typedef int				jint;
+#else
+typedef unsigned long	juint;
+typedef long			jint;
+#endif
+typedef float			jfloat;
+typedef double			jdouble;
+
+typedef juint			jsize;
+
+/*******************************************************************************
+ * jlong : long long (64-bit signed integer type) support.
+ ******************************************************************************/
+
+/*
+** Bit masking macros.  (n must be <= 31 to be portable)
+*/
+#define JRI_BIT(n)			((juint)1 << (n))
+#define JRI_BITMASK(n)		(JRI_BIT(n) - 1)
+
+#ifdef HAVE_LONG_LONG
+
+#if !(defined(WIN32) || defined(_WIN32))
+typedef long long			jlong;
+typedef unsigned long long	julong;
+
+#define jlong_MAXINT		0x7fffffffffffffffLL
+#define jlong_MININT		0x8000000000000000LL
+#define jlong_ZERO			0x0LL
+
+#else
+typedef LONGLONG			jlong;
+typedef DWORDLONG			julong;
+
+#define jlong_MAXINT		0x7fffffffffffffffi64
+#define jlong_MININT		0x8000000000000000i64
+#define jlong_ZERO			0x0i64
+
+#endif
+
+#define jlong_IS_ZERO(a)	((a) == 0)
+#define jlong_EQ(a, b)		((a) == (b))
+#define jlong_NE(a, b)		((a) != (b))
+#define jlong_GE_ZERO(a)	((a) >= 0)
+#define jlong_CMP(a, op, b)	((a) op (b))
+
+#define jlong_AND(r, a, b)	((r) = (a) & (b))
+#define jlong_OR(r, a, b)	((r) = (a) | (b))
+#define jlong_XOR(r, a, b)	((r) = (a) ^ (b))
+#define jlong_OR2(r, a)		((r) = (r) | (a))
+#define jlong_NOT(r, a)		((r) = ~(a))
+
+#define jlong_NEG(r, a)		((r) = -(a))
+#define jlong_ADD(r, a, b)	((r) = (a) + (b))
+#define jlong_SUB(r, a, b)	((r) = (a) - (b))
+
+#define jlong_MUL(r, a, b)	((r) = (a) * (b))
+#define jlong_DIV(r, a, b)	((r) = (a) / (b))
+#define jlong_MOD(r, a, b)	((r) = (a) % (b))
+
+#define jlong_SHL(r, a, b)	((r) = (a) << (b))
+#define jlong_SHR(r, a, b)	((r) = (a) >> (b))
+#define jlong_USHR(r, a, b)	((r) = (julong)(a) >> (b))
+#define jlong_ISHL(r, a, b)	((r) = ((jlong)(a)) << (b))
+
+#define jlong_L2I(i, l)		((i) = (int)(l))
+#define jlong_L2UI(ui, l)	((ui) =(unsigned int)(l))
+#define jlong_L2F(f, l)		((f) = (l))
+#define jlong_L2D(d, l)		((d) = (l))
+
+#define jlong_I2L(l, i)		((l) = (i))
+#define jlong_UI2L(l, ui)	((l) = (ui))
+#define jlong_F2L(l, f)		((l) = (f))
+#define jlong_D2L(l, d)		((l) = (d))
+
+#define jlong_UDIVMOD(qp, rp, a, b)  \
+    (*(qp) = ((julong)(a) / (b)), \
+     *(rp) = ((julong)(a) % (b)))
+
+#else  /* !HAVE_LONG_LONG */
+
+typedef struct {
+#ifdef IS_LITTLE_ENDIAN
+    juint lo, hi;
+#else
+    juint hi, lo;
+#endif
+} jlong;
+typedef jlong				julong;
+
+extern jlong jlong_MAXINT, jlong_MININT, jlong_ZERO;
+
+#define jlong_IS_ZERO(a)	(((a).hi == 0) && ((a).lo == 0))
+#define jlong_EQ(a, b)		(((a).hi == (b).hi) && ((a).lo == (b).lo))
+#define jlong_NE(a, b)		(((a).hi != (b).hi) || ((a).lo != (b).lo))
+#define jlong_GE_ZERO(a)	(((a).hi >> 31) == 0)
+
+/*
+ * NB: jlong_CMP and jlong_UCMP work only for strict relationals (<, >).
+ */
+#define jlong_CMP(a, op, b)	(((int32)(a).hi op (int32)(b).hi) ||          \
+				 (((a).hi == (b).hi) && ((a).lo op (b).lo)))
+#define jlong_UCMP(a, op, b)	(((a).hi op (b).hi) ||                    \
+				 (((a).hi == (b).hi) && ((a).lo op (b).lo)))
+
+#define jlong_AND(r, a, b)	((r).lo = (a).lo & (b).lo,                    \
+				 (r).hi = (a).hi & (b).hi)
+#define jlong_OR(r, a, b)	((r).lo = (a).lo | (b).lo,                    \
+				 (r).hi = (a).hi | (b).hi)
+#define jlong_XOR(r, a, b)	((r).lo = (a).lo ^ (b).lo,                    \
+				 (r).hi = (a).hi ^ (b).hi)
+#define jlong_OR2(r, a)		((r).lo = (r).lo | (a).lo,                    \
+				 (r).hi = (r).hi | (a).hi)
+#define jlong_NOT(r, a)		((r).lo = ~(a).lo,	                          \
+				 (r).hi = ~(a).hi)
+
+#define jlong_NEG(r, a)		((r).lo = -(int32)(a).lo,                     \
+				 (r).hi = -(int32)(a).hi - ((r).lo != 0))
+#define jlong_ADD(r, a, b) {                                              \
+    jlong _a, _b;                                                         \
+    _a = a; _b = b;                                                       \
+    (r).lo = _a.lo + _b.lo;                                               \
+    (r).hi = _a.hi + _b.hi + ((r).lo < _b.lo);                            \
+}
+
+#define jlong_SUB(r, a, b) {                                              \
+    jlong _a, _b;                                                         \
+    _a = a; _b = b;                                                       \
+    (r).lo = _a.lo - _b.lo;                                               \
+    (r).hi = _a.hi - _b.hi - (_a.lo < _b.lo);                             \
+}                                                                         \
+
+/*
+ * Multiply 64-bit operands a and b to get 64-bit result r.
+ * First multiply the low 32 bits of a and b to get a 64-bit result in r.
+ * Then add the outer and inner products to r.hi.
+ */
+#define jlong_MUL(r, a, b) {                                              \
+    jlong _a, _b;                                                         \
+    _a = a; _b = b;                                                       \
+    jlong_MUL32(r, _a.lo, _b.lo);                                         \
+    (r).hi += _a.hi * _b.lo + _a.lo * _b.hi;                              \
+}
+
+/* XXX _jlong_lo16(a) = ((a) << 16 >> 16) is better on some archs (not on mips) */
+#define _jlong_lo16(a)		((a) & JRI_BITMASK(16))
+#define _jlong_hi16(a)		((a) >> 16)
+
+/*
+ * Multiply 32-bit operands a and b to get 64-bit result r.
+ * Use polynomial expansion based on primitive field element (1 << 16).
+ */
+#define jlong_MUL32(r, a, b) {                                            \
+     juint _a1, _a0, _b1, _b0, _y0, _y1, _y2, _y3;                        \
+     _a1 = _jlong_hi16(a), _a0 = _jlong_lo16(a);                          \
+     _b1 = _jlong_hi16(b), _b0 = _jlong_lo16(b);                          \
+     _y0 = _a0 * _b0;                                                     \
+     _y1 = _a0 * _b1;                                                     \
+     _y2 = _a1 * _b0;                                                     \
+     _y3 = _a1 * _b1;                                                     \
+     _y1 += _jlong_hi16(_y0);                   /* can't carry */         \
+     _y1 += _y2;                                /* might carry */         \
+     if (_y1 < _y2) _y3 += 1 << 16;             /* propagate */           \
+     (r).lo = (_jlong_lo16(_y1) << 16) + _jlong_lo16(_y0);                \
+     (r).hi = _y3 + _jlong_hi16(_y1);                                     \
+}
+
+/*
+ * Divide 64-bit unsigned operand a by 64-bit unsigned operand b, setting *qp
+ * to the 64-bit unsigned quotient, and *rp to the 64-bit unsigned remainder.
+ * Minimize effort if one of qp and rp is null.
+ */
+#define jlong_UDIVMOD(qp, rp, a, b)	jlong_udivmod(qp, rp, a, b)
+
+extern JRI_PUBLIC_API(void)
+jlong_udivmod(julong *qp, julong *rp, julong a, julong b);
+
+#define jlong_DIV(r, a, b) {                                              \
+    jlong _a, _b;                                                         \
+    juint _negative = (int32)(a).hi < 0;                                  \
+    if (_negative) {                                                      \
+	jlong_NEG(_a, a);                                                     \
+    } else {                                                              \
+	_a = a;                                                               \
+    }                                                                     \
+    if ((int32)(b).hi < 0) {                                              \
+	_negative ^= 1;                                                       \
+	jlong_NEG(_b, b);                                                     \
+    } else {                                                              \
+	_b = b;                                                               \
+    }                                                                     \
+    jlong_UDIVMOD(&(r), 0, _a, _b);                                       \
+    if (_negative)                                                        \
+	jlong_NEG(r, r);                                                      \
+}
+
+#define jlong_MOD(r, a, b) {                                              \
+    jlong _a, _b;                                                         \
+    juint _negative = (int32)(a).hi < 0;                                  \
+    if (_negative) {                                                      \
+	jlong_NEG(_a, a);                                                     \
+    } else {                                                              \
+	_a = a;                                                               \
+    }                                                                     \
+    if ((int32)(b).hi < 0) {                                              \
+	jlong_NEG(_b, b);                                                     \
+    } else {                                                              \
+	_b = b;                                                               \
+    }                                                                     \
+    jlong_UDIVMOD(0, &(r), _a, _b);                                       \
+    if (_negative)                                                        \
+	jlong_NEG(r, r);                                                      \
+}
+
+/*
+ * NB: b is a juint, not jlong or julong, for the shift ops.
+ */
+#define jlong_SHL(r, a, b) {                                              \
+    if (b) {                                                              \
+	jlong _a;                                                             \
+        _a = a;                                                           \
+        if ((b) < 32) {                                                   \
+	    (r).lo = _a.lo << (b);                                            \
+	    (r).hi = (_a.hi << (b)) | (_a.lo >> (32 - (b)));                  \
+	} else {                                                              \
+	    (r).lo = 0;                                                       \
+	    (r).hi = _a.lo << ((b) & 31);                                     \
+	}                                                                     \
+    } else {                                                              \
+	(r) = (a);                                                            \
+    }                                                                     \
+}
+
+/* a is an int32, b is int32, r is jlong */
+#define jlong_ISHL(r, a, b) {                                             \
+    if (b) {                                                              \
+	jlong _a;                                                             \
+	_a.lo = (a);                                                          \
+	_a.hi = 0;                                                            \
+        if ((b) < 32) {                                                   \
+	    (r).lo = (a) << (b);                                              \
+	    (r).hi = ((a) >> (32 - (b)));                                     \
+	} else {                                                              \
+	    (r).lo = 0;                                                       \
+	    (r).hi = (a) << ((b) & 31);                                       \
+	}                                                                     \
+    } else {                                                              \
+	(r).lo = (a);                                                         \
+	(r).hi = 0;                                                           \
+    }                                                                     \
+}
+
+#define jlong_SHR(r, a, b) {                                              \
+    if (b) {                                                              \
+	jlong _a;                                                             \
+        _a = a;                                                           \
+	if ((b) < 32) {                                                       \
+	    (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b));                  \
+	    (r).hi = (int32)_a.hi >> (b);                                     \
+	} else {                                                              \
+	    (r).lo = (int32)_a.hi >> ((b) & 31);                              \
+	    (r).hi = (int32)_a.hi >> 31;                                      \
+	}                                                                     \
+    } else {                                                              \
+	(r) = (a);                                                            \
+    }                                                                     \
+}
+
+#define jlong_USHR(r, a, b) {                                             \
+    if (b) {                                                              \
+	jlong _a;                                                             \
+        _a = a;                                                           \
+	if ((b) < 32) {                                                       \
+	    (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> (b));                  \
+	    (r).hi = _a.hi >> (b);                                            \
+	} else {                                                              \
+	    (r).lo = _a.hi >> ((b) & 31);                                     \
+	    (r).hi = 0;                                                       \
+	}                                                                     \
+    } else {                                                              \
+	(r) = (a);                                                            \
+    }                                                                     \
+}
+
+#define jlong_L2I(i, l)		((i) = (l).lo)
+#define jlong_L2UI(ui, l)	((ui) = (l).lo)
+#define jlong_L2F(f, l)		{ double _d; jlong_L2D(_d, l); (f) = (float) _d; }
+
+#define jlong_L2D(d, l) {                                                 \
+    int32 _negative;                                                      \
+    jlong _absval;                                                        \
+                                                                          \
+    _negative = (l).hi >> 31;                                             \
+    if (_negative) {                                                      \
+	jlong_NEG(_absval, l);                                                \
+    } else {                                                              \
+	_absval = l;                                                          \
+    }                                                                     \
+    (d) = (double)_absval.hi * 4.294967296e9 + _absval.lo;                \
+    if (_negative)                                                        \
+	(d) = -(d);                                                           \
+}
+
+#define jlong_I2L(l, i)		((l).hi = (i) >> 31, (l).lo = (i))
+#define jlong_UI2L(l, ui)	((l).hi = 0, (l).lo = (ui))
+#define jlong_F2L(l, f)		{ double _d = (double) f; jlong_D2L(l, _d); }
+
+#define jlong_D2L(l, d) {                                                 \
+    int _negative;                                                        \
+    double _absval, _d_hi;                                                \
+    jlong _lo_d;                                                          \
+                                                                          \
+    _negative = ((d) < 0);                                                \
+    _absval = _negative ? -(d) : (d);                                     \
+                                                                          \
+    (l).hi = (juint)(_absval / 4.294967296e9);                            \
+    (l).lo = 0;                                                           \
+    jlong_L2D(_d_hi, l);                                                  \
+    _absval -= _d_hi;                                                     \
+    _lo_d.hi = 0;                                                         \
+    if (_absval < 0) {                                                    \
+	_lo_d.lo = (juint) -_absval;                                          \
+	jlong_SUB(l, l, _lo_d);                                               \
+    } else {                                                              \
+	_lo_d.lo = (juint) _absval;                                           \
+	jlong_ADD(l, l, _lo_d);                                               \
+    }                                                                     \
+                                                                          \
+    if (_negative)                                                        \
+	jlong_NEG(l, l);                                                      \
+}
+
+#endif /* !HAVE_LONG_LONG */
+
+/******************************************************************************/
+/*
+** JDK Stuff -- This stuff is still needed while we're using the JDK
+** dynamic linking strategy to call native methods.
+*/
+
+typedef union JRI_JDK_stack_item {
+    /* Non pointer items */
+    jint           i;
+    jfloat         f;
+    jint           o;
+    /* Pointer items */
+    void          *h;
+    void          *p;
+    unsigned char *addr;
+#ifdef IS_64
+    double         d;
+    long           l;		/* == 64bits! */
+#endif
+} JRI_JDK_stack_item;
+
+typedef union JRI_JDK_Java8Str {
+    jint x[2];
+    jdouble d;
+    jlong l;
+    void *p;
+    float f;
+} JRI_JDK_Java8;
+
+#ifdef HAVE_ALIGNED_LONGLONGS
+#define JRI_GET_INT64(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
+                              ((_t).x[1] = ((jint*)(_addr))[1]),      \
+                              (_t).l )
+#define JRI_SET_INT64(_t, _addr, _v) ( (_t).l = (_v),                \
+                                   ((jint*)(_addr))[0] = (_t).x[0], \
+                                   ((jint*)(_addr))[1] = (_t).x[1] )
+#else
+#define JRI_GET_INT64(_t,_addr) (*(jlong*)(_addr))
+#define JRI_SET_INT64(_t, _addr, _v) (*(jlong*)(_addr) = (_v))
+#endif
+
+/* If double's must be aligned on doubleword boundaries then define this */
+#ifdef HAVE_ALIGNED_DOUBLES
+#define JRI_GET_DOUBLE(_t,_addr) ( ((_t).x[0] = ((jint*)(_addr))[0]), \
+                               ((_t).x[1] = ((jint*)(_addr))[1]),      \
+                               (_t).d )
+#define JRI_SET_DOUBLE(_t, _addr, _v) ( (_t).d = (_v),                \
+                                    ((jint*)(_addr))[0] = (_t).x[0], \
+                                    ((jint*)(_addr))[1] = (_t).x[1] )
+#else
+#define JRI_GET_DOUBLE(_t,_addr) (*(jdouble*)(_addr))
+#define JRI_SET_DOUBLE(_t, _addr, _v) (*(jdouble*)(_addr) = (_v))
+#endif
+
+/******************************************************************************/
+#ifdef __cplusplus
+}
+#endif
+#endif /* JRI_MD_H */
+/******************************************************************************/