vm/mterp/out/InterpC-armv4t.c

/*
 * This file was generated automatically by gen-mterp.py for 'armv4t'.
 *
 * --> DO NOT EDIT <--
 */

/* File: c/header.c */
/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* common includes */
#include "Dalvik.h"
#include "interp/InterpDefs.h"
#include "mterp/Mterp.h"
#include <math.h>                   // needed for fmod, fmodf
#include "mterp/common/FindInterface.h"

/*
 * Configuration defines.  These affect the C implementations, i.e. the
 * portable interpreter(s) and C stubs.
 *
 * Some defines are controlled by the Makefile, e.g.:
 *   WITH_PROFILER
 *   WITH_DEBUGGER
 *   WITH_INSTR_CHECKS
 *   WITH_TRACKREF_CHECKS
 *   EASY_GDB
 *   NDEBUG
 *
 * If THREADED_INTERP is not defined, we use a classic "while true / switch"
 * interpreter.  If it is defined, then the tail end of each instruction
 * handler fetches the next instruction and jumps directly to the handler.
 * This increases the size of the "Std" interpreter by about 10%, but
 * provides a speedup of about the same magnitude.
 *
 * There's a "hybrid" approach that uses a goto table instead of a switch
 * statement, avoiding the "is the opcode in range" tests required for switch.
 * The performance is close to the threaded version, and without the 10%
 * size increase, but the benchmark results are off enough that it's not
 * worth adding as a third option.
 */
#define THREADED_INTERP             /* threaded vs. while-loop interpreter */

#ifdef WITH_INSTR_CHECKS            /* instruction-level paranoia (slow!) */
# define CHECK_BRANCH_OFFSETS
# define CHECK_REGISTER_INDICES
#endif

/*
 * ARM EABI requires 64-bit alignment for access to 64-bit data types.  We
 * can't just use pointers to copy 64-bit values out of our interpreted
 * register set, because gcc will generate ldrd/strd.
 *
 * The __UNION version copies data in and out of a union.  The __MEMCPY
 * version uses a memcpy() call to do the transfer; gcc is smart enough to
 * not actually call memcpy().  The __UNION version is very bad on ARM;
 * it only uses one more instruction than __MEMCPY, but for some reason
 * gcc thinks it needs separate storage for every instance of the union.
 * On top of that, it feels the need to zero them out at the start of the
 * method.  Net result is we zero out ~700 bytes of stack space at the top
 * of the interpreter using ARM STM instructions.
 */
#if defined(__ARM_EABI__)
//# define NO_UNALIGN_64__UNION
# define NO_UNALIGN_64__MEMCPY
#endif

//#define LOG_INSTR                   /* verbose debugging */
/* set and adjust ANDROID_LOG_TAGS='*:i jdwp:i dalvikvm:i dalvikvmi:i' */

/*
 * Keep a tally of accesses to fields.  Currently only works if full DEX
 * optimization is disabled.
 */
#ifdef PROFILE_FIELD_ACCESS
# define UPDATE_FIELD_GET(_field) { (_field)->gets++; }
# define UPDATE_FIELD_PUT(_field) { (_field)->puts++; }
#else
# define UPDATE_FIELD_GET(_field) ((void)0)
# define UPDATE_FIELD_PUT(_field) ((void)0)
#endif

/*
 * Export another copy of the PC on every instruction; this is largely
 * redundant with EXPORT_PC and the debugger code.  This value can be
 * compared against what we have stored on the stack with EXPORT_PC to
 * help ensure that we aren't missing any export calls.
 */
#if WITH_EXTRA_GC_CHECKS > 1
# define EXPORT_EXTRA_PC() (self->currentPc2 = pc)
#else
# define EXPORT_EXTRA_PC()
#endif

/*
 * Adjust the program counter.  "_offset" is a signed int, in 16-bit units.
 *
 * Assumes the existence of "const u2* pc" and "const u2* curMethod->insns".
 *
 * We don't advance the program counter until we finish an instruction or
 * branch, because we do want to have to unroll the PC if there's an
 * exception.
 */
#ifdef CHECK_BRANCH_OFFSETS
# define ADJUST_PC(_offset) do {                                            \
        int myoff = _offset;        /* deref only once */                   \
        if (pc + myoff < curMethod->insns ||                                \
            pc + myoff >= curMethod->insns + dvmGetMethodInsnsSize(curMethod)) \
        {                                                                   \
            char* desc;                                                     \
            desc = dexProtoCopyMethodDescriptor(&curMethod->prototype);     \
            LOGE("Invalid branch %d at 0x%04x in %s.%s %s\n",               \
                myoff, (int) (pc - curMethod->insns),                       \
                curMethod->clazz->descriptor, curMethod->name, desc);       \
            free(desc);                                                     \
            dvmAbort();                                                     \
        }                                                                   \
        pc += myoff;                                                        \
        EXPORT_EXTRA_PC();                                                  \
    } while (false)
#else
# define ADJUST_PC(_offset) do {                                            \
        pc += _offset;                                                      \
        EXPORT_EXTRA_PC();                                                  \
    } while (false)
#endif

/*
 * If enabled, log instructions as we execute them.
 */
#ifdef LOG_INSTR
# define ILOGD(...) ILOG(LOG_DEBUG, __VA_ARGS__)
# define ILOGV(...) ILOG(LOG_VERBOSE, __VA_ARGS__)
# define ILOG(_level, ...) do {                                             \
        char debugStrBuf[128];                                              \
        snprintf(debugStrBuf, sizeof(debugStrBuf), __VA_ARGS__);            \
        if (curMethod != NULL)                                                 \
            LOG(_level, LOG_TAG"i", "%-2d|%04x%s\n",                        \
                self->threadId, (int)(pc - curMethod->insns), debugStrBuf); \
        else                                                                \
            LOG(_level, LOG_TAG"i", "%-2d|####%s\n",                        \
                self->threadId, debugStrBuf);                               \
    } while(false)
void dvmDumpRegs(const Method* method, const u4* framePtr, bool inOnly);
# define DUMP_REGS(_meth, _frame, _inOnly) dvmDumpRegs(_meth, _frame, _inOnly)
static const char kSpacing[] = "            ";
#else
# define ILOGD(...) ((void)0)
# define ILOGV(...) ((void)0)
# define DUMP_REGS(_meth, _frame, _inOnly) ((void)0)
#endif

/* get a long from an array of u4 */
static inline s8 getLongFromArray(const u4* ptr, int idx)
{
#if defined(NO_UNALIGN_64__UNION)
    union { s8 ll; u4 parts[2]; } conv;

    ptr += idx;
    conv.parts[0] = ptr[0];
    conv.parts[1] = ptr[1];
    return conv.ll;
#elif defined(NO_UNALIGN_64__MEMCPY)
    s8 val;
    memcpy(&val, &ptr[idx], 8);
    return val;
#else
    return *((s8*) &ptr[idx]);
#endif
}

/* store a long into an array of u4 */
static inline void putLongToArray(u4* ptr, int idx, s8 val)
{
#if defined(NO_UNALIGN_64__UNION)
    union { s8 ll; u4 parts[2]; } conv;

    ptr += idx;
    conv.ll = val;
    ptr[0] = conv.parts[0];
    ptr[1] = conv.parts[1];
#elif defined(NO_UNALIGN_64__MEMCPY)
    memcpy(&ptr[idx], &val, 8);
#else
    *((s8*) &ptr[idx]) = val;
#endif
}

/* get a double from an array of u4 */
static inline double getDoubleFromArray(const u4* ptr, int idx)
{
#if defined(NO_UNALIGN_64__UNION)
    union { double d; u4 parts[2]; } conv;

    ptr += idx;
    conv.parts[0] = ptr[0];
    conv.parts[1] = ptr[1];
    return conv.d;
#elif defined(NO_UNALIGN_64__MEMCPY)
    double dval;
    memcpy(&dval, &ptr[idx], 8);
    return dval;
#else
    return *((double*) &ptr[idx]);
#endif
}

/* store a double into an array of u4 */
static inline void putDoubleToArray(u4* ptr, int idx, double dval)
{
#if defined(NO_UNALIGN_64__UNION)
    union { double d; u4 parts[2]; } conv;

    ptr += idx;
    conv.d = dval;
    ptr[0] = conv.parts[0];
    ptr[1] = conv.parts[1];
#elif defined(NO_UNALIGN_64__MEMCPY)
    memcpy(&ptr[idx], &dval, 8);
#else
    *((double*) &ptr[idx]) = dval;
#endif
}

/*
 * If enabled, validate the register number on every access.  Otherwise,
 * just do an array access.
 *
 * Assumes the existence of "u4* fp".
 *
 * "_idx" may be referenced more than once.
 */
#ifdef CHECK_REGISTER_INDICES
# define GET_REGISTER(_idx) \
    ( (_idx) < curMethod->registersSize ? \
        (fp[(_idx)]) : (assert(!"bad reg"),1969) )
# define SET_REGISTER(_idx, _val) \
    ( (_idx) < curMethod->registersSize ? \
        (fp[(_idx)] = (u4)(_val)) : (assert(!"bad reg"),1969) )
# define GET_REGISTER_AS_OBJECT(_idx)       ((Object *)GET_REGISTER(_idx))
# define SET_REGISTER_AS_OBJECT(_idx, _val) SET_REGISTER(_idx, (s4)_val)
# define GET_REGISTER_INT(_idx) ((s4) GET_REGISTER(_idx))
# define SET_REGISTER_INT(_idx, _val) SET_REGISTER(_idx, (s4)_val)
# define GET_REGISTER_WIDE(_idx) \
    ( (_idx) < curMethod->registersSize-1 ? \
        getLongFromArray(fp, (_idx)) : (assert(!"bad reg"),1969) )
# define SET_REGISTER_WIDE(_idx, _val) \
    ( (_idx) < curMethod->registersSize-1 ? \
        putLongToArray(fp, (_idx), (_val)) : (assert(!"bad reg"),1969) )
# define GET_REGISTER_FLOAT(_idx) \
    ( (_idx) < curMethod->registersSize ? \
        (*((float*) &fp[(_idx)])) : (assert(!"bad reg"),1969.0f) )
# define SET_REGISTER_FLOAT(_idx, _val) \
    ( (_idx) < curMethod->registersSize ? \
        (*((float*) &fp[(_idx)]) = (_val)) : (assert(!"bad reg"),1969.0f) )
# define GET_REGISTER_DOUBLE(_idx) \
    ( (_idx) < curMethod->registersSize-1 ? \
        getDoubleFromArray(fp, (_idx)) : (assert(!"bad reg"),1969.0) )
# define SET_REGISTER_DOUBLE(_idx, _val) \
    ( (_idx) < curMethod->registersSize-1 ? \
        putDoubleToArray(fp, (_idx), (_val)) : (assert(!"bad reg"),1969.0) )
#else
# define GET_REGISTER(_idx)                 (fp[(_idx)])
# define SET_REGISTER(_idx, _val)           (fp[(_idx)] = (_val))
# define GET_REGISTER_AS_OBJECT(_idx)       ((Object*) fp[(_idx)])
# define SET_REGISTER_AS_OBJECT(_idx, _val) (fp[(_idx)] = (u4)(_val))
# define GET_REGISTER_INT(_idx)             ((s4)GET_REGISTER(_idx))
# define SET_REGISTER_INT(_idx, _val)       SET_REGISTER(_idx, (s4)_val)
# define GET_REGISTER_WIDE(_idx)            getLongFromArray(fp, (_idx))
# define SET_REGISTER_WIDE(_idx, _val)      putLongToArray(fp, (_idx), (_val))
# define GET_REGISTER_FLOAT(_idx)           (*((float*) &fp[(_idx)]))
# define SET_REGISTER_FLOAT(_idx, _val)     (*((float*) &fp[(_idx)]) = (_val))
# define GET_REGISTER_DOUBLE(_idx)          getDoubleFromArray(fp, (_idx))
# define SET_REGISTER_DOUBLE(_idx, _val)    putDoubleToArray(fp, (_idx), (_val))
#endif

/*
 * Get 16 bits from the specified offset of the program counter.  We always
 * want to load 16 bits at a time from the instruction stream -- it's more
 * efficient than 8 and won't have the alignment problems that 32 might.
 *
 * Assumes existence of "const u2* pc".
 */
#define FETCH(_offset)     (pc[(_offset)])

/*
 * Extract instruction byte from 16-bit fetch (_inst is a u2).
 */
#define INST_INST(_inst)    ((_inst) & 0xff)

/*
 * Replace the opcode (used when handling breakpoints).  _opcode is a u1.
 */
#define INST_REPLACE_OP(_inst, _opcode) (((_inst) & 0xff00) | _opcode)

/*
 * Extract the "vA, vB" 4-bit registers from the instruction word (_inst is u2).
 */
#define INST_A(_inst)       (((_inst) >> 8) & 0x0f)
#define INST_B(_inst)       ((_inst) >> 12)

/*
 * Get the 8-bit "vAA" 8-bit register index from the instruction word.
 * (_inst is u2)
 */
#define INST_AA(_inst)      ((_inst) >> 8)

/*
 * The current PC must be available to Throwable constructors, e.g.
 * those created by dvmThrowException(), so that the exception stack
 * trace can be generated correctly.  If we don't do this, the offset
 * within the current method won't be shown correctly.  See the notes
 * in Exception.c.
 *
 * This is also used to determine the address for precise GC.
 *
 * Assumes existence of "u4* fp" and "const u2* pc".
 */
#define EXPORT_PC()         (SAVEAREA_FROM_FP(fp)->xtra.currentPc = pc)

/*
 * Determine if we need to switch to a different interpreter.  "_current"
 * is either INTERP_STD or INTERP_DBG.  It should be fixed for a given
 * interpreter generation file, which should remove the outer conditional
 * from the following.
 *
 * If we're building without debug and profiling support, we never switch.
 */
#if defined(WITH_PROFILER) || defined(WITH_DEBUGGER)
#if defined(WITH_JIT)
# define NEED_INTERP_SWITCH(_current) (                                     \
    (_current == INTERP_STD) ?                                              \
        dvmJitDebuggerOrProfilerActive() : !dvmJitDebuggerOrProfilerActive() )
#else
# define NEED_INTERP_SWITCH(_current) (                                     \
    (_current == INTERP_STD) ?                                              \
        dvmDebuggerOrProfilerActive() : !dvmDebuggerOrProfilerActive() )
#endif
#else
# define NEED_INTERP_SWITCH(_current) (false)
#endif

/*
 * Check to see if "obj" is NULL.  If so, throw an exception.  Assumes the
 * pc has already been exported to the stack.
 *
 * Perform additional checks on debug builds.
 *
 * Use this to check for NULL when the instruction handler calls into
 * something that could throw an exception (so we have already called
 * EXPORT_PC at the top).
 */
static inline bool checkForNull(Object* obj)
{
    if (obj == NULL) {
        dvmThrowException("Ljava/lang/NullPointerException;", NULL);
        return false;
    }
#ifdef WITH_EXTRA_OBJECT_VALIDATION
    if (!dvmIsValidObject(obj)) {
        LOGE("Invalid object %p\n", obj);
        dvmAbort();
    }
#endif
#ifndef NDEBUG
    if (obj->clazz == NULL || ((u4) obj->clazz) <= 65536) {
        /* probable heap corruption */
        LOGE("Invalid object class %p (in %p)\n", obj->clazz, obj);
        dvmAbort();
    }
#endif
    return true;
}

/*
 * Check to see if "obj" is NULL.  If so, export the PC into the stack
 * frame and throw an exception.
 *
 * Perform additional checks on debug builds.
 *
 * Use this to check for NULL when the instruction handler doesn't do
 * anything else that can throw an exception.
 */
static inline bool checkForNullExportPC(Object* obj, u4* fp, const u2* pc)
{
    if (obj == NULL) {
        EXPORT_PC();
        dvmThrowException("Ljava/lang/NullPointerException;", NULL);
        return false;
    }
#ifdef WITH_EXTRA_OBJECT_VALIDATION
    if (!dvmIsValidObject(obj)) {
        LOGE("Invalid object %p\n", obj);
        dvmAbort();
    }
#endif
#ifndef NDEBUG
    if (obj->clazz == NULL || ((u4) obj->clazz) <= 65536) {
        /* probable heap corruption */
        LOGE("Invalid object class %p (in %p)\n", obj->clazz, obj);
        dvmAbort();
    }
#endif
    return true;
}

/* File: cstubs/stubdefs.c */
/* this is a standard (no debug support) interpreter */
#define INTERP_TYPE INTERP_STD
#define CHECK_DEBUG_AND_PROF() ((void)0)
# define CHECK_TRACKED_REFS() ((void)0)
#define CHECK_JIT() (0)
#define ABORT_JIT_TSELECT() ((void)0)

/*
 * In the C mterp stubs, "goto" is a function call followed immediately
 * by a return.
 */

#define GOTO_TARGET_DECL(_target, ...)                                      \
    void dvmMterp_##_target(MterpGlue* glue, ## __VA_ARGS__);

#define GOTO_TARGET(_target, ...)                                           \
    void dvmMterp_##_target(MterpGlue* glue, ## __VA_ARGS__) {              \
        u2 ref, vsrc1, vsrc2, vdst;                                         \
        u2 inst = FETCH(0);                                                 \
        const Method* methodToCall;                                         \
        StackSaveArea* debugSaveArea;

#define GOTO_TARGET_END }

/*
 * Redefine what used to be local variable accesses into MterpGlue struct
 * references.  (These are undefined down in "footer.c".)
 */
#define retval                  glue->retval
#define pc                      glue->pc
#define fp                      glue->fp
#define curMethod               glue->method
#define methodClassDex          glue->methodClassDex
#define self                    glue->self
#define debugTrackedRefStart    glue->debugTrackedRefStart

/* ugh */
#define STUB_HACK(x) x


/*
 * Opcode handler framing macros.  Here, each opcode is a separate function
 * that takes a "glue" argument and returns void.  We can't declare
 * these "static" because they may be called from an assembly stub.
 */
#define HANDLE_OPCODE(_op)                                                  \
    void dvmMterp_##_op(MterpGlue* glue) {                                  \
        u2 ref, vsrc1, vsrc2, vdst;                                         \
        u2 inst = FETCH(0);

#define OP_END }

/*
 * Like the "portable" FINISH, but don't reload "inst", and return to caller
 * when done.
 */
#define FINISH(_offset) {                                                   \
        ADJUST_PC(_offset);                                                 \
        CHECK_DEBUG_AND_PROF();                                             \
        CHECK_TRACKED_REFS();                                               \
        return;                                                             \
    }


/*
 * The "goto label" statements turn into function calls followed by
 * return statements.  Some of the functions take arguments, which in the
 * portable interpreter are handled by assigning values to globals.
 */

#define GOTO_exceptionThrown()                                              \
    do {                                                                    \
        dvmMterp_exceptionThrown(glue);                                     \
        return;                                                             \
    } while(false)

#define GOTO_returnFromMethod()                                             \
    do {                                                                    \
        dvmMterp_returnFromMethod(glue);                                    \
        return;                                                             \
    } while(false)

#define GOTO_invoke(_target, _methodCallRange)                              \
    do {                                                                    \
        dvmMterp_##_target(glue, _methodCallRange);                         \
        return;                                                             \
    } while(false)

#define GOTO_invokeMethod(_methodCallRange, _methodToCall, _vsrc1, _vdst)   \
    do {                                                                    \
        dvmMterp_invokeMethod(glue, _methodCallRange, _methodToCall,        \
            _vsrc1, _vdst);                                                 \
        return;                                                             \
    } while(false)

/*
 * As a special case, "goto bail" turns into a longjmp.  Use "bail_switch"
 * if we need to switch to the other interpreter upon our return.
 */
#define GOTO_bail()                                                         \
    dvmMterpStdBail(glue, false);
#define GOTO_bail_switch()                                                  \
    dvmMterpStdBail(glue, true);

/*
 * Periodically check for thread suspension.
 *
 * While we're at it, see if a debugger has attached or the profiler has
 * started.  If so, switch to a different "goto" table.
 */
#define PERIODIC_CHECKS(_entryPoint, _pcadj) {                              \
        if (dvmCheckSuspendQuick(self)) {                                   \
            EXPORT_PC();  /* need for precise GC */                         \
            dvmCheckSuspendPending(self);                                   \
        }                                                                   \
        if (NEED_INTERP_SWITCH(INTERP_TYPE)) {                              \
            ADJUST_PC(_pcadj);                                              \
            glue->entryPoint = _entryPoint;                                 \
            LOGVV("threadid=%d: switch to STD ep=%d adj=%d\n",              \
                self->threadId, (_entryPoint), (_pcadj));                   \
            GOTO_bail_switch();                                             \
        }                                                                   \
    }

/* File: c/opcommon.c */
/* forward declarations of goto targets */
GOTO_TARGET_DECL(filledNewArray, bool methodCallRange);
GOTO_TARGET_DECL(invokeVirtual, bool methodCallRange);
GOTO_TARGET_DECL(invokeSuper, bool methodCallRange);
GOTO_TARGET_DECL(invokeInterface, bool methodCallRange);
GOTO_TARGET_DECL(invokeDirect, bool methodCallRange);
GOTO_TARGET_DECL(invokeStatic, bool methodCallRange);
GOTO_TARGET_DECL(invokeVirtualQuick, bool methodCallRange);
GOTO_TARGET_DECL(invokeSuperQuick, bool methodCallRange);
GOTO_TARGET_DECL(invokeMethod, bool methodCallRange, const Method* methodToCall,
    u2 count, u2 regs);
GOTO_TARGET_DECL(returnFromMethod);
GOTO_TARGET_DECL(exceptionThrown);

/*
 * ===========================================================================
 *
 * What follows are opcode definitions shared between multiple opcodes with
 * minor substitutions handled by the C pre-processor.  These should probably
 * use the mterp substitution mechanism instead, with the code here moved
 * into common fragment files (like the asm "binop.S"), although it's hard
 * to give up the C preprocessor in favor of the much simpler text subst.
 *
 * ===========================================================================
 */

#define HANDLE_NUMCONV(_opcode, _opname, _fromtype, _totype)                \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1);                       \
        SET_REGISTER##_totype(vdst,                                         \
            GET_REGISTER##_fromtype(vsrc1));                                \
        FINISH(1);

#define HANDLE_FLOAT_TO_INT(_opcode, _opname, _fromvtype, _fromrtype,       \
        _tovtype, _tortype)                                                 \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
    {                                                                       \
        /* spec defines specific handling for +/- inf and NaN values */     \
        _fromvtype val;                                                     \
        _tovtype intMin, intMax, result;                                    \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1);                       \
        val = GET_REGISTER##_fromrtype(vsrc1);                              \
        intMin = (_tovtype) 1 << (sizeof(_tovtype) * 8 -1);                 \
        intMax = ~intMin;                                                   \
        result = (_tovtype) val;                                            \
        if (val >= intMax)          /* +inf */                              \
            result = intMax;                                                \
        else if (val <= intMin)     /* -inf */                              \
            result = intMin;                                                \
        else if (val != val)        /* NaN */                               \
            result = 0;                                                     \
        else                                                                \
            result = (_tovtype) val;                                        \
        SET_REGISTER##_tortype(vdst, result);                               \
    }                                                                       \
    FINISH(1);

#define HANDLE_INT_TO_SMALL(_opcode, _opname, _type)                        \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|int-to-%s v%d,v%d", (_opname), vdst, vsrc1);                \
        SET_REGISTER(vdst, (_type) GET_REGISTER(vsrc1));                    \
        FINISH(1);

/* NOTE: the comparison result is always a signed 4-byte integer */
#define HANDLE_OP_CMPX(_opcode, _opname, _varType, _type, _nanVal)          \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        int result;                                                         \
        u2 regs;                                                            \
        _varType val1, val2;                                                \
        vdst = INST_AA(inst);                                               \
        regs = FETCH(1);                                                    \
        vsrc1 = regs & 0xff;                                                \
        vsrc2 = regs >> 8;                                                  \
        ILOGV("|cmp%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);         \
        val1 = GET_REGISTER##_type(vsrc1);                                  \
        val2 = GET_REGISTER##_type(vsrc2);                                  \
        if (val1 == val2)                                                   \
            result = 0;                                                     \
        else if (val1 < val2)                                               \
            result = -1;                                                    \
        else if (val1 > val2)                                               \
            result = 1;                                                     \
        else                                                                \
            result = (_nanVal);                                             \
        ILOGV("+ result=%d\n", result);                                     \
        SET_REGISTER(vdst, result);                                         \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_IF_XX(_opcode, _opname, _cmp)                             \
    HANDLE_OPCODE(_opcode /*vA, vB, +CCCC*/)                                \
        vsrc1 = INST_A(inst);                                               \
        vsrc2 = INST_B(inst);                                               \
        if ((s4) GET_REGISTER(vsrc1) _cmp (s4) GET_REGISTER(vsrc2)) {       \
            int branchOffset = (s2)FETCH(1);    /* sign-extended */         \
            ILOGV("|if-%s v%d,v%d,+0x%04x", (_opname), vsrc1, vsrc2,        \
                branchOffset);                                              \
            ILOGV("> branch taken");                                        \
            if (branchOffset < 0)                                           \
                PERIODIC_CHECKS(kInterpEntryInstr, branchOffset);           \
            FINISH(branchOffset);                                           \
        } else {                                                            \
            ILOGV("|if-%s v%d,v%d,-", (_opname), vsrc1, vsrc2);             \
            FINISH(2);                                                      \
        }

#define HANDLE_OP_IF_XXZ(_opcode, _opname, _cmp)                            \
    HANDLE_OPCODE(_opcode /*vAA, +BBBB*/)                                   \
        vsrc1 = INST_AA(inst);                                              \
        if ((s4) GET_REGISTER(vsrc1) _cmp 0) {                              \
            int branchOffset = (s2)FETCH(1);    /* sign-extended */         \
            ILOGV("|if-%s v%d,+0x%04x", (_opname), vsrc1, branchOffset);    \
            ILOGV("> branch taken");                                        \
            if (branchOffset < 0)                                           \
                PERIODIC_CHECKS(kInterpEntryInstr, branchOffset);           \
            FINISH(branchOffset);                                           \
        } else {                                                            \
            ILOGV("|if-%s v%d,-", (_opname), vsrc1);                        \
            FINISH(2);                                                      \
        }

#define HANDLE_UNOP(_opcode, _opname, _pfx, _sfx, _type)                    \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s v%d,v%d", (_opname), vdst, vsrc1);                       \
        SET_REGISTER##_type(vdst, _pfx GET_REGISTER##_type(vsrc1) _sfx);    \
        FINISH(1);

#define HANDLE_OP_X_INT(_opcode, _opname, _op, _chkdiv)                     \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        u2 srcRegs;                                                         \
        vdst = INST_AA(inst);                                               \
        srcRegs = FETCH(1);                                                 \
        vsrc1 = srcRegs & 0xff;                                             \
        vsrc2 = srcRegs >> 8;                                               \
        ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1);                   \
        if (_chkdiv != 0) {                                                 \
            s4 firstVal, secondVal, result;                                 \
            firstVal = GET_REGISTER(vsrc1);                                 \
            secondVal = GET_REGISTER(vsrc2);                                \
            if (secondVal == 0) {                                           \
                EXPORT_PC();                                                \
                dvmThrowException("Ljava/lang/ArithmeticException;",        \
                    "divide by zero");                                      \
                GOTO_exceptionThrown();                                     \
            }                                                               \
            if ((u4)firstVal == 0x80000000 && secondVal == -1) {            \
                if (_chkdiv == 1)                                           \
                    result = firstVal;  /* division */                      \
                else                                                        \
                    result = 0;         /* remainder */                     \
            } else {                                                        \
                result = firstVal _op secondVal;                            \
            }                                                               \
            SET_REGISTER(vdst, result);                                     \
        } else {                                                            \
            /* non-div/rem case */                                          \
            SET_REGISTER(vdst,                                              \
                (s4) GET_REGISTER(vsrc1) _op (s4) GET_REGISTER(vsrc2));     \
        }                                                                   \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_SHX_INT(_opcode, _opname, _cast, _op)                     \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        u2 srcRegs;                                                         \
        vdst = INST_AA(inst);                                               \
        srcRegs = FETCH(1);                                                 \
        vsrc1 = srcRegs & 0xff;                                             \
        vsrc2 = srcRegs >> 8;                                               \
        ILOGV("|%s-int v%d,v%d", (_opname), vdst, vsrc1);                   \
        SET_REGISTER(vdst,                                                  \
            _cast GET_REGISTER(vsrc1) _op (GET_REGISTER(vsrc2) & 0x1f));    \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_X_INT_LIT16(_opcode, _opname, _op, _chkdiv)               \
    HANDLE_OPCODE(_opcode /*vA, vB, #+CCCC*/)                               \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        vsrc2 = FETCH(1);                                                   \
        ILOGV("|%s-int/lit16 v%d,v%d,#+0x%04x",                             \
            (_opname), vdst, vsrc1, vsrc2);                                 \
        if (_chkdiv != 0) {                                                 \
            s4 firstVal, result;                                            \
            firstVal = GET_REGISTER(vsrc1);                                 \
            if ((s2) vsrc2 == 0) {                                          \
                EXPORT_PC();                                                \
                dvmThrowException("Ljava/lang/ArithmeticException;",        \
                    "divide by zero");                                      \
                GOTO_exceptionThrown();                                      \
            }                                                               \
            if ((u4)firstVal == 0x80000000 && ((s2) vsrc2) == -1) {         \
                /* won't generate /lit16 instr for this; check anyway */    \
                if (_chkdiv == 1)                                           \
                    result = firstVal;  /* division */                      \
                else                                                        \
                    result = 0;         /* remainder */                     \
            } else {                                                        \
                result = firstVal _op (s2) vsrc2;                           \
            }                                                               \
            SET_REGISTER(vdst, result);                                     \
        } else {                                                            \
            /* non-div/rem case */                                          \
            SET_REGISTER(vdst, GET_REGISTER(vsrc1) _op (s2) vsrc2);         \
        }                                                                   \
        FINISH(2);

#define HANDLE_OP_X_INT_LIT8(_opcode, _opname, _op, _chkdiv)                \
    HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/)                               \
    {                                                                       \
        u2 litInfo;                                                         \
        vdst = INST_AA(inst);                                               \
        litInfo = FETCH(1);                                                 \
        vsrc1 = litInfo & 0xff;                                             \
        vsrc2 = litInfo >> 8;       /* constant */                          \
        ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x",                              \
            (_opname), vdst, vsrc1, vsrc2);                                 \
        if (_chkdiv != 0) {                                                 \
            s4 firstVal, result;                                            \
            firstVal = GET_REGISTER(vsrc1);                                 \
            if ((s1) vsrc2 == 0) {                                          \
                EXPORT_PC();                                                \
                dvmThrowException("Ljava/lang/ArithmeticException;",        \
                    "divide by zero");                                      \
                GOTO_exceptionThrown();                                     \
            }                                                               \
            if ((u4)firstVal == 0x80000000 && ((s1) vsrc2) == -1) {         \
                if (_chkdiv == 1)                                           \
                    result = firstVal;  /* division */                      \
                else                                                        \
                    result = 0;         /* remainder */                     \
            } else {                                                        \
                result = firstVal _op ((s1) vsrc2);                         \
            }                                                               \
            SET_REGISTER(vdst, result);                                     \
        } else {                                                            \
            SET_REGISTER(vdst,                                              \
                (s4) GET_REGISTER(vsrc1) _op (s1) vsrc2);                   \
        }                                                                   \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_SHX_INT_LIT8(_opcode, _opname, _cast, _op)                \
    HANDLE_OPCODE(_opcode /*vAA, vBB, #+CC*/)                               \
    {                                                                       \
        u2 litInfo;                                                         \
        vdst = INST_AA(inst);                                               \
        litInfo = FETCH(1);                                                 \
        vsrc1 = litInfo & 0xff;                                             \
        vsrc2 = litInfo >> 8;       /* constant */                          \
        ILOGV("|%s-int/lit8 v%d,v%d,#+0x%02x",                              \
            (_opname), vdst, vsrc1, vsrc2);                                 \
        SET_REGISTER(vdst,                                                  \
            _cast GET_REGISTER(vsrc1) _op (vsrc2 & 0x1f));                  \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_X_INT_2ADDR(_opcode, _opname, _op, _chkdiv)               \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1);             \
        if (_chkdiv != 0) {                                                 \
            s4 firstVal, secondVal, result;                                 \
            firstVal = GET_REGISTER(vdst);                                  \
            secondVal = GET_REGISTER(vsrc1);                                \
            if (secondVal == 0) {                                           \
                EXPORT_PC();                                                \
                dvmThrowException("Ljava/lang/ArithmeticException;",        \
                    "divide by zero");                                      \
                GOTO_exceptionThrown();                                     \
            }                                                               \
            if ((u4)firstVal == 0x80000000 && secondVal == -1) {            \
                if (_chkdiv == 1)                                           \
                    result = firstVal;  /* division */                      \
                else                                                        \
                    result = 0;         /* remainder */                     \
            } else {                                                        \
                result = firstVal _op secondVal;                            \
            }                                                               \
            SET_REGISTER(vdst, result);                                     \
        } else {                                                            \
            SET_REGISTER(vdst,                                              \
                (s4) GET_REGISTER(vdst) _op (s4) GET_REGISTER(vsrc1));      \
        }                                                                   \
        FINISH(1);

#define HANDLE_OP_SHX_INT_2ADDR(_opcode, _opname, _cast, _op)               \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s-int-2addr v%d,v%d", (_opname), vdst, vsrc1);             \
        SET_REGISTER(vdst,                                                  \
            _cast GET_REGISTER(vdst) _op (GET_REGISTER(vsrc1) & 0x1f));     \
        FINISH(1);

#define HANDLE_OP_X_LONG(_opcode, _opname, _op, _chkdiv)                    \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        u2 srcRegs;                                                         \
        vdst = INST_AA(inst);                                               \
        srcRegs = FETCH(1);                                                 \
        vsrc1 = srcRegs & 0xff;                                             \
        vsrc2 = srcRegs >> 8;                                               \
        ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);       \
        if (_chkdiv != 0) {                                                 \
            s8 firstVal, secondVal, result;                                 \
            firstVal = GET_REGISTER_WIDE(vsrc1);                            \
            secondVal = GET_REGISTER_WIDE(vsrc2);                           \
            if (secondVal == 0LL) {                                         \
                EXPORT_PC();                                                \
                dvmThrowException("Ljava/lang/ArithmeticException;",        \
                    "divide by zero");                                      \
                GOTO_exceptionThrown();                                     \
            }                                                               \
            if ((u8)firstVal == 0x8000000000000000ULL &&                    \
                secondVal == -1LL)                                          \
            {                                                               \
                if (_chkdiv == 1)                                           \
                    result = firstVal;  /* division */                      \
                else                                                        \
                    result = 0;         /* remainder */                     \
            } else {                                                        \
                result = firstVal _op secondVal;                            \
            }                                                               \
            SET_REGISTER_WIDE(vdst, result);                                \
        } else {                                                            \
            SET_REGISTER_WIDE(vdst,                                         \
                (s8) GET_REGISTER_WIDE(vsrc1) _op (s8) GET_REGISTER_WIDE(vsrc2)); \
        }                                                                   \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_SHX_LONG(_opcode, _opname, _cast, _op)                    \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        u2 srcRegs;                                                         \
        vdst = INST_AA(inst);                                               \
        srcRegs = FETCH(1);                                                 \
        vsrc1 = srcRegs & 0xff;                                             \
        vsrc2 = srcRegs >> 8;                                               \
        ILOGV("|%s-long v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);       \
        SET_REGISTER_WIDE(vdst,                                             \
            _cast GET_REGISTER_WIDE(vsrc1) _op (GET_REGISTER(vsrc2) & 0x3f)); \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_X_LONG_2ADDR(_opcode, _opname, _op, _chkdiv)              \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1);            \
        if (_chkdiv != 0) {                                                 \
            s8 firstVal, secondVal, result;                                 \
            firstVal = GET_REGISTER_WIDE(vdst);                             \
            secondVal = GET_REGISTER_WIDE(vsrc1);                           \
            if (secondVal == 0LL) {                                         \
                EXPORT_PC();                                                \
                dvmThrowException("Ljava/lang/ArithmeticException;",        \
                    "divide by zero");                                      \
                GOTO_exceptionThrown();                                     \
            }                                                               \
            if ((u8)firstVal == 0x8000000000000000ULL &&                    \
                secondVal == -1LL)                                          \
            {                                                               \
                if (_chkdiv == 1)                                           \
                    result = firstVal;  /* division */                      \
                else                                                        \
                    result = 0;         /* remainder */                     \
            } else {                                                        \
                result = firstVal _op secondVal;                            \
            }                                                               \
            SET_REGISTER_WIDE(vdst, result);                                \
        } else {                                                            \
            SET_REGISTER_WIDE(vdst,                                         \
                (s8) GET_REGISTER_WIDE(vdst) _op (s8)GET_REGISTER_WIDE(vsrc1));\
        }                                                                   \
        FINISH(1);

#define HANDLE_OP_SHX_LONG_2ADDR(_opcode, _opname, _cast, _op)              \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s-long-2addr v%d,v%d", (_opname), vdst, vsrc1);            \
        SET_REGISTER_WIDE(vdst,                                             \
            _cast GET_REGISTER_WIDE(vdst) _op (GET_REGISTER(vsrc1) & 0x3f)); \
        FINISH(1);

#define HANDLE_OP_X_FLOAT(_opcode, _opname, _op)                            \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        u2 srcRegs;                                                         \
        vdst = INST_AA(inst);                                               \
        srcRegs = FETCH(1);                                                 \
        vsrc1 = srcRegs & 0xff;                                             \
        vsrc2 = srcRegs >> 8;                                               \
        ILOGV("|%s-float v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);      \
        SET_REGISTER_FLOAT(vdst,                                            \
            GET_REGISTER_FLOAT(vsrc1) _op GET_REGISTER_FLOAT(vsrc2));       \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_X_DOUBLE(_opcode, _opname, _op)                           \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        u2 srcRegs;                                                         \
        vdst = INST_AA(inst);                                               \
        srcRegs = FETCH(1);                                                 \
        vsrc1 = srcRegs & 0xff;                                             \
        vsrc2 = srcRegs >> 8;                                               \
        ILOGV("|%s-double v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);     \
        SET_REGISTER_DOUBLE(vdst,                                           \
            GET_REGISTER_DOUBLE(vsrc1) _op GET_REGISTER_DOUBLE(vsrc2));     \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_X_FLOAT_2ADDR(_opcode, _opname, _op)                      \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s-float-2addr v%d,v%d", (_opname), vdst, vsrc1);           \
        SET_REGISTER_FLOAT(vdst,                                            \
            GET_REGISTER_FLOAT(vdst) _op GET_REGISTER_FLOAT(vsrc1));        \
        FINISH(1);

#define HANDLE_OP_X_DOUBLE_2ADDR(_opcode, _opname, _op)                     \
    HANDLE_OPCODE(_opcode /*vA, vB*/)                                       \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);                                               \
        ILOGV("|%s-double-2addr v%d,v%d", (_opname), vdst, vsrc1);          \
        SET_REGISTER_DOUBLE(vdst,                                           \
            GET_REGISTER_DOUBLE(vdst) _op GET_REGISTER_DOUBLE(vsrc1));      \
        FINISH(1);

#define HANDLE_OP_AGET(_opcode, _opname, _type, _regsize)                   \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        ArrayObject* arrayObj;                                              \
        u2 arrayInfo;                                                       \
        EXPORT_PC();                                                        \
        vdst = INST_AA(inst);                                               \
        arrayInfo = FETCH(1);                                               \
        vsrc1 = arrayInfo & 0xff;    /* array ptr */                        \
        vsrc2 = arrayInfo >> 8;      /* index */                            \
        ILOGV("|aget%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);        \
        arrayObj = (ArrayObject*) GET_REGISTER(vsrc1);                      \
        if (!checkForNull((Object*) arrayObj))                              \
            GOTO_exceptionThrown();                                         \
        if (GET_REGISTER(vsrc2) >= arrayObj->length) {                      \
            LOGV("Invalid array access: %p %d (len=%d)\n",                  \
                arrayObj, vsrc2, arrayObj->length);                         \
            dvmThrowException("Ljava/lang/ArrayIndexOutOfBoundsException;", \
                NULL);                                                      \
            GOTO_exceptionThrown();                                         \
        }                                                                   \
        SET_REGISTER##_regsize(vdst,                                        \
            ((_type*) arrayObj->contents)[GET_REGISTER(vsrc2)]);            \
        ILOGV("+ AGET[%d]=0x%x", GET_REGISTER(vsrc2), GET_REGISTER(vdst));  \
    }                                                                       \
    FINISH(2);

#define HANDLE_OP_APUT(_opcode, _opname, _type, _regsize)                   \
    HANDLE_OPCODE(_opcode /*vAA, vBB, vCC*/)                                \
    {                                                                       \
        ArrayObject* arrayObj;                                              \
        u2 arrayInfo;                                                       \
        EXPORT_PC();                                                        \
        vdst = INST_AA(inst);       /* AA: source value */                  \
        arrayInfo = FETCH(1);                                               \
        vsrc1 = arrayInfo & 0xff;   /* BB: array ptr */                     \
        vsrc2 = arrayInfo >> 8;     /* CC: index */                         \
        ILOGV("|aput%s v%d,v%d,v%d", (_opname), vdst, vsrc1, vsrc2);        \
        arrayObj = (ArrayObject*) GET_REGISTER(vsrc1);                      \
        if (!checkForNull((Object*) arrayObj))                              \
            GOTO_exceptionThrown();                                         \
        if (GET_REGISTER(vsrc2) >= arrayObj->length) {                      \
            dvmThrowException("Ljava/lang/ArrayIndexOutOfBoundsException;", \
                NULL);                                                      \
            GOTO_exceptionThrown();                                         \
        }                                                                   \
        ILOGV("+ APUT[%d]=0x%08x", GET_REGISTER(vsrc2), GET_REGISTER(vdst));\
        ((_type*) arrayObj->contents)[GET_REGISTER(vsrc2)] =                \
            GET_REGISTER##_regsize(vdst);                                   \
    }                                                                       \
    FINISH(2);

/*
 * It's possible to get a bad value out of a field with sub-32-bit stores
 * because the -quick versions always operate on 32 bits.  Consider:
 *   short foo = -1  (sets a 32-bit register to 0xffffffff)
 *   iput-quick foo  (writes all 32 bits to the field)
 *   short bar = 1   (sets a 32-bit register to 0x00000001)
 *   iput-short      (writes the low 16 bits to the field)
 *   iget-quick foo  (reads all 32 bits from the field, yielding 0xffff0001)
 * This can only happen when optimized and non-optimized code has interleaved
 * access to the same field.  This is unlikely but possible.
 *
 * The easiest way to fix this is to always read/write 32 bits at a time.  On
 * a device with a 16-bit data bus this is sub-optimal.  (The alternative
 * approach is to have sub-int versions of iget-quick, but now we're wasting
 * Dalvik instruction space and making it less likely that handler code will
 * already be in the CPU i-cache.)
 */
#define HANDLE_IGET_X(_opcode, _opname, _ftype, _regsize)                   \
    HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
    {                                                                       \
        InstField* ifield;                                                  \
        Object* obj;                                                        \
        EXPORT_PC();                                                        \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);   /* object ptr */                            \
        ref = FETCH(1);         /* field ref */                             \
        ILOGV("|iget%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \
        obj = (Object*) GET_REGISTER(vsrc1);                                \
        if (!checkForNull(obj))                                             \
            GOTO_exceptionThrown();                                         \
        ifield = (InstField*) dvmDexGetResolvedField(methodClassDex, ref);  \
        if (ifield == NULL) {                                               \
            ifield = dvmResolveInstField(curMethod->clazz, ref);            \
            if (ifield == NULL)                                             \
                GOTO_exceptionThrown();                                     \
        }                                                                   \
        SET_REGISTER##_regsize(vdst,                                        \
            dvmGetField##_ftype(obj, ifield->byteOffset));                  \
        ILOGV("+ IGET '%s'=0x%08llx", ifield->field.name,                   \
            (u8) GET_REGISTER##_regsize(vdst));                             \
        UPDATE_FIELD_GET(&ifield->field);                                   \
    }                                                                       \
    FINISH(2);

#define HANDLE_IGET_X_QUICK(_opcode, _opname, _ftype, _regsize)             \
    HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
    {                                                                       \
        Object* obj;                                                        \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);   /* object ptr */                            \
        ref = FETCH(1);         /* field offset */                          \
        ILOGV("|iget%s-quick v%d,v%d,field@+%u",                            \
            (_opname), vdst, vsrc1, ref);                                   \
        obj = (Object*) GET_REGISTER(vsrc1);                                \
        if (!checkForNullExportPC(obj, fp, pc))                             \
            GOTO_exceptionThrown();                                         \
        SET_REGISTER##_regsize(vdst, dvmGetField##_ftype(obj, ref));        \
        ILOGV("+ IGETQ %d=0x%08llx", ref,                                   \
            (u8) GET_REGISTER##_regsize(vdst));                             \
    }                                                                       \
    FINISH(2);

#define HANDLE_IPUT_X(_opcode, _opname, _ftype, _regsize)                   \
    HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
    {                                                                       \
        InstField* ifield;                                                  \
        Object* obj;                                                        \
        EXPORT_PC();                                                        \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);   /* object ptr */                            \
        ref = FETCH(1);         /* field ref */                             \
        ILOGV("|iput%s v%d,v%d,field@0x%04x", (_opname), vdst, vsrc1, ref); \
        obj = (Object*) GET_REGISTER(vsrc1);                                \
        if (!checkForNull(obj))                                             \
            GOTO_exceptionThrown();                                         \
        ifield = (InstField*) dvmDexGetResolvedField(methodClassDex, ref);  \
        if (ifield == NULL) {                                               \
            ifield = dvmResolveInstField(curMethod->clazz, ref);            \
            if (ifield == NULL)                                             \
                GOTO_exceptionThrown();                                     \
        }                                                                   \
        dvmSetField##_ftype(obj, ifield->byteOffset,                        \
            GET_REGISTER##_regsize(vdst));                                  \
        ILOGV("+ IPUT '%s'=0x%08llx", ifield->field.name,                   \
            (u8) GET_REGISTER##_regsize(vdst));                             \
        UPDATE_FIELD_PUT(&ifield->field);                                   \
    }                                                                       \
    FINISH(2);

#define HANDLE_IPUT_X_QUICK(_opcode, _opname, _ftype, _regsize)             \
    HANDLE_OPCODE(_opcode /*vA, vB, field@CCCC*/)                           \
    {                                                                       \
        Object* obj;                                                        \
        vdst = INST_A(inst);                                                \
        vsrc1 = INST_B(inst);   /* object ptr */                            \
        ref = FETCH(1);         /* field offset */                          \
        ILOGV("|iput%s-quick v%d,v%d,field@0x%04x",                         \
            (_opname), vdst, vsrc1, ref);                                   \
        obj = (Object*) GET_REGISTER(vsrc1);                                \
        if (!checkForNullExportPC(obj, fp, pc))                             \
            GOTO_exceptionThrown();                                         \
        dvmSetField##_ftype(obj, ref, GET_REGISTER##_regsize(vdst));        \
        ILOGV("+ IPUTQ %d=0x%08llx", ref,                                   \
            (u8) GET_REGISTER##_regsize(vdst));                             \
    }                                                                       \
    FINISH(2);

/*
 * The JIT needs dvmDexGetResolvedField() to return non-null.
 * Since we use the portable interpreter to build the trace, the extra
 * checks in HANDLE_SGET_X and HANDLE_SPUT_X are not needed for mterp.
 */
#define HANDLE_SGET_X(_opcode, _opname, _ftype, _regsize)                   \
    HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/)                              \
    {                                                                       \
        StaticField* sfield;                                                \
        vdst = INST_AA(inst);                                               \
        ref = FETCH(1);         /* field ref */                             \
        ILOGV("|sget%s v%d,sfield@0x%04x", (_opname), vdst, ref);           \
        sfield = (StaticField*)dvmDexGetResolvedField(methodClassDex, ref); \
        if (sfield == NULL) {                                               \
            EXPORT_PC();                                                    \
            sfield = dvmResolveStaticField(curMethod->clazz, ref);          \
            if (sfield == NULL)                                             \
                GOTO_exceptionThrown();                                     \
            if (dvmDexGetResolvedField(methodClassDex, ref) == NULL) {      \
                ABORT_JIT_TSELECT();                                        \
            }                                                               \
        }                                                                   \
        SET_REGISTER##_regsize(vdst, dvmGetStaticField##_ftype(sfield));    \
        ILOGV("+ SGET '%s'=0x%08llx",                                       \
            sfield->field.name, (u8)GET_REGISTER##_regsize(vdst));          \
        UPDATE_FIELD_GET(&sfield->field);                                   \
    }                                                                       \
    FINISH(2);

#define HANDLE_SPUT_X(_opcode, _opname, _ftype, _regsize)                   \
    HANDLE_OPCODE(_opcode /*vAA, field@BBBB*/)                              \
    {                                                                       \
        StaticField* sfield;                                                \
        vdst = INST_AA(inst);                                               \
        ref = FETCH(1);         /* field ref */                             \
        ILOGV("|sput%s v%d,sfield@0x%04x", (_opname), vdst, ref);           \
        sfield = (StaticField*)dvmDexGetResolvedField(methodClassDex, ref); \
        if (sfield == NULL) {                                               \
            EXPORT_PC();                                                    \
            sfield = dvmResolveStaticField(curMethod->clazz, ref);          \
            if (sfield == NULL)                                             \
                GOTO_exceptionThrown();                                     \
            if (dvmDexGetResolvedField(methodClassDex, ref) == NULL) {      \
                ABORT_JIT_TSELECT();                                        \
            }                                                               \
        }                                                                   \
        dvmSetStaticField##_ftype(sfield, GET_REGISTER##_regsize(vdst));    \
        ILOGV("+ SPUT '%s'=0x%08llx",                                       \
            sfield->field.name, (u8)GET_REGISTER##_regsize(vdst));          \
        UPDATE_FIELD_PUT(&sfield->field);                                   \
    }                                                                       \
    FINISH(2);

/* File: cstubs/enddefs.c */

/* undefine "magic" name remapping */
#undef retval
#undef pc
#undef fp
#undef curMethod
#undef methodClassDex
#undef self
#undef debugTrackedRefStart

/* File: armv5te/debug.c */
#include <inttypes.h>

/*
 * Dump the fixed-purpose ARM registers, along with some other info.
 *
 * This function MUST be compiled in ARM mode -- THUMB will yield bogus
 * results.
 *
 * This will NOT preserve r0-r3/ip.
 */
void dvmMterpDumpArmRegs(uint32_t r0, uint32_t r1, uint32_t r2, uint32_t r3)
{
    register uint32_t rPC       asm("r4");
    register uint32_t rFP       asm("r5");
    register uint32_t rGLUE     asm("r6");
    register uint32_t rINST     asm("r7");
    register uint32_t rIBASE    asm("r8");
    register uint32_t r9        asm("r9");
    register uint32_t r10       asm("r10");

    extern char dvmAsmInstructionStart[];

    printf("REGS: r0=%08x r1=%08x r2=%08x r3=%08x\n", r0, r1, r2, r3);
    printf("    : rPC=%08x rFP=%08x rGLUE=%08x rINST=%08x\n",
        rPC, rFP, rGLUE, rINST);
    printf("    : rIBASE=%08x r9=%08x r10=%08x\n", rIBASE, r9, r10);

    MterpGlue* glue = (MterpGlue*) rGLUE;
    const Method* method = glue->method;
    printf("    + self is %p\n", dvmThreadSelf());
    //printf("    + currently in %s.%s %s\n",
    //    method->clazz->descriptor, method->name, method->shorty);
    //printf("    + dvmAsmInstructionStart = %p\n", dvmAsmInstructionStart);
    //printf("    + next handler for 0x%02x = %p\n",
    //    rINST & 0xff, dvmAsmInstructionStart + (rINST & 0xff) * 64);
}

/*
 * Dump the StackSaveArea for the specified frame pointer.
 */
void dvmDumpFp(void* fp, StackSaveArea* otherSaveArea)
{
    StackSaveArea* saveArea = SAVEAREA_FROM_FP(fp);
    printf("StackSaveArea for fp %p [%p/%p]:\n", fp, saveArea, otherSaveArea);
#ifdef EASY_GDB
    printf("  prevSave=%p, prevFrame=%p savedPc=%p meth=%p curPc=%p\n",
        saveArea->prevSave, saveArea->prevFrame, saveArea->savedPc,
        saveArea->method, saveArea->xtra.currentPc);
#else
    printf("  prevFrame=%p savedPc=%p meth=%p curPc=%p fp[0]=0x%08x\n",
        saveArea->prevFrame, saveArea->savedPc,
        saveArea->method, saveArea->xtra.currentPc,
        *(u4*)fp);
#endif
}

/*
 * Does the bulk of the work for common_printMethod().
 */
void dvmMterpPrintMethod(Method* method)
{
    /*
     * It is a direct (non-virtual) method if it is static, private,
     * or a constructor.
     */
    bool isDirect =
        ((method->accessFlags & (ACC_STATIC|ACC_PRIVATE)) != 0) ||
        (method->name[0] == '<');

    char* desc = dexProtoCopyMethodDescriptor(&method->prototype);

    printf("<%c:%s.%s %s> ",
            isDirect ? 'D' : 'V',
            method->clazz->descriptor,
            method->name,
            desc);

    free(desc);
}