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 40 void VMRegImpl::print_on(outputStream* st) const { 41 if( is_reg() ) { 42 assert(VMRegImpl::regName[value()], "VMRegImpl::regName[" INTPTR_FORMAT "] returns NULL", 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 }