1 /*
2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "asm/assembler.hpp"
27 #include "code/vmreg.hpp"
28
29 // First VMReg value that could refer to a stack slot
30 VMReg VMRegImpl::stack0 = (VMReg)(intptr_t)((ConcreteRegisterImpl::number_of_registers + 7) & ~7);
31
32 // VMRegs are 4 bytes wide on all platforms
33 const int VMRegImpl::stack_slot_size = 4;
34 const int VMRegImpl::slots_per_word = wordSize / stack_slot_size;
35
36 const int VMRegImpl::register_count = ConcreteRegisterImpl::number_of_registers;
37 // Register names
38 const char *VMRegImpl::regName[ConcreteRegisterImpl::number_of_registers];
39
print_on(outputStream * st) const40 void VMRegImpl::print_on(outputStream* st) const {
41 if( is_reg() ) {
42 assert( VMRegImpl::regName[value()], "" );
43 st->print("%s",VMRegImpl::regName[value()]);
44 } else if (is_stack()) {
45 int stk = value() - stack0->value();
46 st->print("[%d]", stk*4);
47 } else {
48 st->print("BAD!");
49 }
50 }
51