1// 2// Copyright (c) 2003, 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// AMD64 Linux Architecture Description File 26 27//----------OS-DEPENDENT ENCODING BLOCK---------------------------------------- 28// This block specifies the encoding classes used by the compiler to 29// output byte streams. Encoding classes generate functions which are 30// called by Machine Instruction Nodes in order to generate the bit 31// encoding of the instruction. Operands specify their base encoding 32// interface with the interface keyword. There are currently 33// supported four interfaces, REG_INTER, CONST_INTER, MEMORY_INTER, & 34// COND_INTER. REG_INTER causes an operand to generate a function 35// which returns its register number when queried. CONST_INTER causes 36// an operand to generate a function which returns the value of the 37// constant when queried. MEMORY_INTER causes an operand to generate 38// four functions which return the Base Register, the Index Register, 39// the Scale Value, and the Offset Value of the operand when queried. 40// COND_INTER causes an operand to generate six functions which return 41// the encoding code (ie - encoding bits for the instruction) 42// associated with each basic boolean condition for a conditional 43// instruction. Instructions specify two basic values for encoding. 44// They use the ins_encode keyword to specify their encoding class 45// (which must be one of the class names specified in the encoding 46// block), and they use the opcode keyword to specify, in order, their 47// primary, secondary, and tertiary opcode. Only the opcode sections 48// which a particular instruction needs for encoding need to be 49// specified. 50encode %{ 51 // Build emit functions for each basic byte or larger field in the intel 52 // encoding scheme (opcode, rm, sib, immediate), and call them from C++ 53 // code in the enc_class source block. Emit functions will live in the 54 // main source block for now. In future, we can generalize this by 55 // adding a syntax that specifies the sizes of fields in an order, 56 // so that the adlc can build the emit functions automagically 57 58 enc_class Java_To_Runtime(method meth) %{ 59 %} 60 61%} 62 63 64// Platform dependent source 65 66source %{ 67 68%} 69