Mercurial > hg > truffle

annotate src/cpu/ppc/vm/bytes_ppc.hpp @ 18408:2c3666f44855

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Truffle: initial commit of object API implementation
author Andreas Woess <andreas.woess@jku.at>
date Tue, 18 Nov 2014 23:19:43 +0100
parents 56e7f5560e60
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
1 /*
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
3 * Copyright 2012, 2013 SAP AG. All rights reserved.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
5 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
6 * This code is free software; you can redistribute it and/or modify it
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
7 * under the terms of the GNU General Public License version 2 only, as
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
8 * published by the Free Software Foundation.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
9 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
10 * This code is distributed in the hope that it will be useful, but WITHOUT
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
13 * version 2 for more details (a copy is included in the LICENSE file that
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
14 * accompanied this code).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
15 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
16 * You should have received a copy of the GNU General Public License version
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
17 * 2 along with this work; if not, write to the Free Software Foundation,
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
19 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
21 * or visit www.oracle.com if you need additional information or have any
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
22 * questions.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
23 *
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
24 */
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
25
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
26 #ifndef CPU_PPC_VM_BYTES_PPC_HPP
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
27 #define CPU_PPC_VM_BYTES_PPC_HPP
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
28
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
29 #include "memory/allocation.hpp"
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
30
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
31 class Bytes: AllStatic {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
32 public:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
33 // Efficient reading and writing of unaligned unsigned data in platform-specific byte ordering
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
34 // PowerPC needs to check for alignment.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
35
14445
67fa91961822 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 14408
diff changeset
36 // Can I count on address always being a pointer to an unsigned char? Yes.
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
37
17830
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
38 #if defined(VM_LITTLE_ENDIAN)
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
39
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
40 // Returns true, if the byte ordering used by Java is different from the native byte ordering
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
41 // of the underlying machine. For example, true for Intel x86, False, for Solaris on Sparc.
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
42 static inline bool is_Java_byte_ordering_different() { return true; }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
43
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
44 // Forward declarations of the compiler-dependent implementation
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
45 static inline u2 swap_u2(u2 x);
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
46 static inline u4 swap_u4(u4 x);
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
47 static inline u8 swap_u8(u8 x);
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
48
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
49 static inline u2 get_native_u2(address p) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
50 return (intptr_t(p) & 1) == 0
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
51 ? *(u2*)p
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
52 : ( u2(p[1]) << 8 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
53 | ( u2(p[0]) );
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
54 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
55
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
56 static inline u4 get_native_u4(address p) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
57 switch (intptr_t(p) & 3) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
58 case 0: return *(u4*)p;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
59
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
60 case 2: return ( u4( ((u2*)p)[1] ) << 16 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
61 | ( u4( ((u2*)p)[0] ) );
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
62
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
63 default: return ( u4(p[3]) << 24 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
64 | ( u4(p[2]) << 16 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
65 | ( u4(p[1]) << 8 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
66 | u4(p[0]);
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
67 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
68 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
69
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
70 static inline u8 get_native_u8(address p) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
71 switch (intptr_t(p) & 7) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
72 case 0: return *(u8*)p;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
73
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
74 case 4: return ( u8( ((u4*)p)[1] ) << 32 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
75 | ( u8( ((u4*)p)[0] ) );
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
76
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
77 case 2: return ( u8( ((u2*)p)[3] ) << 48 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
78 | ( u8( ((u2*)p)[2] ) << 32 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
79 | ( u8( ((u2*)p)[1] ) << 16 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
80 | ( u8( ((u2*)p)[0] ) );
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
81
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
82 default: return ( u8(p[7]) << 56 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
83 | ( u8(p[6]) << 48 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
84 | ( u8(p[5]) << 40 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
85 | ( u8(p[4]) << 32 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
86 | ( u8(p[3]) << 24 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
87 | ( u8(p[2]) << 16 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
88 | ( u8(p[1]) << 8 )
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
89 | u8(p[0]);
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
90 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
91 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
92
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
93
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
94
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
95 static inline void put_native_u2(address p, u2 x) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
96 if ( (intptr_t(p) & 1) == 0 ) *(u2*)p = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
97 else {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
98 p[1] = x >> 8;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
99 p[0] = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
100 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
101 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
102
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
103 static inline void put_native_u4(address p, u4 x) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
104 switch ( intptr_t(p) & 3 ) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
105 case 0: *(u4*)p = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
106 break;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
107
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
108 case 2: ((u2*)p)[1] = x >> 16;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
109 ((u2*)p)[0] = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
110 break;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
111
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
112 default: ((u1*)p)[3] = x >> 24;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
113 ((u1*)p)[2] = x >> 16;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
114 ((u1*)p)[1] = x >> 8;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
115 ((u1*)p)[0] = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
116 break;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
117 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
118 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
119
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
120 static inline void put_native_u8(address p, u8 x) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
121 switch ( intptr_t(p) & 7 ) {
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
122 case 0: *(u8*)p = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
123 break;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
124
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
125 case 4: ((u4*)p)[1] = x >> 32;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
126 ((u4*)p)[0] = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
127 break;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
128
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
129 case 2: ((u2*)p)[3] = x >> 48;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
130 ((u2*)p)[2] = x >> 32;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
131 ((u2*)p)[1] = x >> 16;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
132 ((u2*)p)[0] = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
133 break;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
134
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
135 default: ((u1*)p)[7] = x >> 56;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
136 ((u1*)p)[6] = x >> 48;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
137 ((u1*)p)[5] = x >> 40;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
138 ((u1*)p)[4] = x >> 32;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
139 ((u1*)p)[3] = x >> 24;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
140 ((u1*)p)[2] = x >> 16;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
141 ((u1*)p)[1] = x >> 8;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
142 ((u1*)p)[0] = x;
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
143 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
144 }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
145
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
146 // Efficient reading and writing of unaligned unsigned data in Java byte ordering (i.e. big-endian ordering)
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
147 // (no byte-order reversal is needed since Power CPUs are big-endian oriented).
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
148 static inline u2 get_Java_u2(address p) { return swap_u2(get_native_u2(p)); }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
149 static inline u4 get_Java_u4(address p) { return swap_u4(get_native_u4(p)); }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
150 static inline u8 get_Java_u8(address p) { return swap_u8(get_native_u8(p)); }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
151
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
152 static inline void put_Java_u2(address p, u2 x) { put_native_u2(p, swap_u2(x)); }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
153 static inline void put_Java_u4(address p, u4 x) { put_native_u4(p, swap_u4(x)); }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
154 static inline void put_Java_u8(address p, u8 x) { put_native_u8(p, swap_u8(x)); }
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
155
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
156 #else // !defined(VM_LITTLE_ENDIAN)
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
157
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
158 // Returns true, if the byte ordering used by Java is different from the nativ byte ordering
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
159 // of the underlying machine. For example, true for Intel x86, False, for Solaris on Sparc.
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
160 static inline bool is_Java_byte_ordering_different() { return false; }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
161
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
162 // Thus, a swap between native and Java ordering is always a no-op:
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
163 static inline u2 swap_u2(u2 x) { return x; }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
164 static inline u4 swap_u4(u4 x) { return x; }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
165 static inline u8 swap_u8(u8 x) { return x; }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
166
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
167 static inline u2 get_native_u2(address p) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
168 return (intptr_t(p) & 1) == 0
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
169 ? *(u2*)p
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
170 : ( u2(p[0]) << 8 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
171 | ( u2(p[1]) );
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
172 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
173
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
174 static inline u4 get_native_u4(address p) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
175 switch (intptr_t(p) & 3) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
176 case 0: return *(u4*)p;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
177
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
178 case 2: return ( u4( ((u2*)p)[0] ) << 16 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
179 | ( u4( ((u2*)p)[1] ) );
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
180
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
181 default: return ( u4(p[0]) << 24 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
182 | ( u4(p[1]) << 16 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
183 | ( u4(p[2]) << 8 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
184 | u4(p[3]);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
185 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
186 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
187
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
188 static inline u8 get_native_u8(address p) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
189 switch (intptr_t(p) & 7) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
190 case 0: return *(u8*)p;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
191
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
192 case 4: return ( u8( ((u4*)p)[0] ) << 32 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
193 | ( u8( ((u4*)p)[1] ) );
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
194
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
195 case 2: return ( u8( ((u2*)p)[0] ) << 48 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
196 | ( u8( ((u2*)p)[1] ) << 32 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
197 | ( u8( ((u2*)p)[2] ) << 16 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
198 | ( u8( ((u2*)p)[3] ) );
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
199
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
200 default: return ( u8(p[0]) << 56 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
201 | ( u8(p[1]) << 48 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
202 | ( u8(p[2]) << 40 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
203 | ( u8(p[3]) << 32 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
204 | ( u8(p[4]) << 24 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
205 | ( u8(p[5]) << 16 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
206 | ( u8(p[6]) << 8 )
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
207 | u8(p[7]);
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
208 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
209 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
210
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
211
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
212
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
213 static inline void put_native_u2(address p, u2 x) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
214 if ( (intptr_t(p) & 1) == 0 ) { *(u2*)p = x; }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
215 else {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
216 p[0] = x >> 8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
217 p[1] = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
218 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
219 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
220
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
221 static inline void put_native_u4(address p, u4 x) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
222 switch ( intptr_t(p) & 3 ) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
223 case 0: *(u4*)p = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
224 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
225
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
226 case 2: ((u2*)p)[0] = x >> 16;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
227 ((u2*)p)[1] = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
228 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
229
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
230 default: ((u1*)p)[0] = x >> 24;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
231 ((u1*)p)[1] = x >> 16;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
232 ((u1*)p)[2] = x >> 8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
233 ((u1*)p)[3] = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
234 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
235 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
236 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
237
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
238 static inline void put_native_u8(address p, u8 x) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
239 switch ( intptr_t(p) & 7 ) {
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
240 case 0: *(u8*)p = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
241 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
242
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
243 case 4: ((u4*)p)[0] = x >> 32;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
244 ((u4*)p)[1] = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
245 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
246
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
247 case 2: ((u2*)p)[0] = x >> 48;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
248 ((u2*)p)[1] = x >> 32;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
249 ((u2*)p)[2] = x >> 16;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
250 ((u2*)p)[3] = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
251 break;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
252
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
253 default: ((u1*)p)[0] = x >> 56;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
254 ((u1*)p)[1] = x >> 48;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
255 ((u1*)p)[2] = x >> 40;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
256 ((u1*)p)[3] = x >> 32;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
257 ((u1*)p)[4] = x >> 24;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
258 ((u1*)p)[5] = x >> 16;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
259 ((u1*)p)[6] = x >> 8;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
260 ((u1*)p)[7] = x;
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
261 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
262 }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
263
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
264 // Efficient reading and writing of unaligned unsigned data in Java byte ordering (i.e. big-endian ordering)
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
265 // (no byte-order reversal is needed since Power CPUs are big-endian oriented).
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
266 static inline u2 get_Java_u2(address p) { return get_native_u2(p); }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
267 static inline u4 get_Java_u4(address p) { return get_native_u4(p); }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
268 static inline u8 get_Java_u8(address p) { return get_native_u8(p); }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
269
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
270 static inline void put_Java_u2(address p, u2 x) { put_native_u2(p, x); }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
271 static inline void put_Java_u4(address p, u4 x) { put_native_u4(p, x); }
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
272 static inline void put_Java_u8(address p, u8 x) { put_native_u8(p, x); }
17830
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
273
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
274 #endif // VM_LITTLE_ENDIAN
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
275 };
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
276
17830
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
277 #if defined(TARGET_OS_ARCH_linux_ppc)
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
278 #include "bytes_linux_ppc.inline.hpp"
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
279 #endif
56e7f5560e60 8036767: PPC64: Support for little endian execution model
kvn
parents: 14445
diff changeset
280
14408
ec28f9c041ff 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
281 #endif // CPU_PPC_VM_BYTES_PPC_HPP