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/*
* Copyright 2001-2005 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
# include "incls/_precompiled.incl"
# include "incls/_stackValueCollection.cpp.incl"
jint StackValueCollection::int_at(int slot) const {
intptr_t val = at(slot)->get_int();
jint ival = *((jint*) (&val));
return ival;
}
jlong StackValueCollection::long_at(int slot) const {
#ifdef _LP64
return at(slot+1)->get_int();
#else
union {
jlong jl;
jint array[2];
} value;
// Interpreter stack is reversed in memory:
// low memory location is in higher java local slot.
value.array[0] = at(slot+1)->get_int();
value.array[1] = at(slot )->get_int();
return value.jl;
#endif
}
Handle StackValueCollection::obj_at(int slot) const {
return at(slot)->get_obj();
}
jfloat StackValueCollection::float_at(int slot) const {
intptr_t res = at(slot)->get_int();
return *((jfloat*) (&res));
}
jdouble StackValueCollection::double_at(int slot) const {
#ifdef _LP64
intptr_t res = at(slot+1)->get_int();
return *((jdouble*) (&res));
#else
union {
jdouble jd;
jint array[2];
} value;
// Interpreter stack is reversed in memory:
// low memory location is in higher java local slot.
value.array[0] = at(slot+1)->get_int();
value.array[1] = at(slot )->get_int();
return value.jd;
#endif
}
void StackValueCollection::set_int_at(int slot, jint value) {
intptr_t val;
*((jint*) (&val)) = value;
at(slot)->set_int(val);
}
void StackValueCollection::set_long_at(int slot, jlong value) {
#ifdef _LP64
at(slot+1)->set_int(value);
#else
union {
jlong jl;
jint array[2];
} x;
// Interpreter stack is reversed in memory:
// low memory location is in higher java local slot.
x.jl = value;
at(slot+1)->set_int(x.array[0]);
at(slot+0)->set_int(x.array[1]);
#endif
}
void StackValueCollection::set_obj_at(int slot, Handle value) {
at(slot)->set_obj(value);
}
void StackValueCollection::set_float_at(int slot, jfloat value) {
#ifdef _LP64
union {
intptr_t jd;
jint array[2];
} val;
// Interpreter stores 32 bit floats in first half of 64 bit word.
val.array[0] = *(jint*)(&value);
val.array[1] = 0;
at(slot)->set_int(val.jd);
#else
at(slot)->set_int(*(jint*)(&value));
#endif
}
void StackValueCollection::set_double_at(int slot, jdouble value) {
#ifdef _LP64
at(slot+1)->set_int(*(intptr_t*)(&value));
#else
union {
jdouble jd;
jint array[2];
} x;
// Interpreter stack is reversed in memory:
// low memory location is in higher java local slot.
x.jd = value;
at(slot+1)->set_int(x.array[0]);
at(slot+0)->set_int(x.array[1]);
#endif
}
#ifndef PRODUCT
void StackValueCollection::print() {
for(int index = 0; index < size(); index++) {
tty->print("\t %2d ", index);
at(index)->print_on(tty);
if( at(index )->type() == T_INT &&
index+1 < size() &&
at(index+1)->type() == T_INT ) {
tty->print(" " INT64_FORMAT " (long)", long_at(index));
tty->cr();
tty->print("\t %.15e (double)", double_at(index));
tty->print(" " PTR64_FORMAT " (longhex)", long_at(index));
}
tty->cr();
}
}
#endif
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