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src/cpu/x86/vm/interpreter_x86.hpp@e9ff18c4ace7 (annotated)

src/cpu/x86/vm/interpreter_x86.hpp

Wed, 02 Jun 2010 22:45:42 -0700

author

jrose

date

Wed, 02 Jun 2010 22:45:42 -0700

changeset 1934

e9ff18c4ace7

parent 1907

c18cbe5936b8

child 2314

f95d63e2154a

permissions

-rw-r--r--

Merge

duke@435	1	/*
trims@1907	2	* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	public:
duke@435	26
duke@435	27	// Sentinel placed in the code for interpreter returns so
duke@435	28	// that i2c adapters and osr code can recognize an interpreter
duke@435	29	// return address and convert the return to a specialized
duke@435	30	// block of code to handle compiedl return values and cleaning
duke@435	31	// the fpu stack.
duke@435	32	static const int return_sentinel;
duke@435	33
twisti@1861	34	static Address::ScaleFactor stackElementScale() { return Address::times_4; }
duke@435	35
duke@435	36	// Offset from rsp (which points to the last stack element)
twisti@1861	37	static int expr_offset_in_bytes(int i) { return stackElementSize * i; }
duke@435	38
duke@435	39	// Stack index relative to tos (which points at value)
twisti@1861	40	static int expr_index_at(int i) { return stackElementWords * i; }
duke@435	41
duke@435	42	// Already negated by c++ interpreter
twisti@1861	43	static int local_index_at(int i) {
twisti@1861	44	assert(i <= 0, "local direction already negated");
twisti@1861	45	return stackElementWords * i;
duke@435	46	}