1 /* 2 * Copyright (c) 2002, 2010, 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 #ifndef CPU_X86_VM_BYTECODEINTERPRETER_X86_INLINE_HPP 26 #define CPU_X86_VM_BYTECODEINTERPRETER_X86_INLINE_HPP 27 28 // Inline interpreter functions for IA32 29 30 inline jfloat BytecodeInterpreter::VMfloatAdd(jfloat op1, jfloat op2) { return op1 + op2; } 31 inline jfloat BytecodeInterpreter::VMfloatSub(jfloat op1, jfloat op2) { return op1 - op2; } 32 inline jfloat BytecodeInterpreter::VMfloatMul(jfloat op1, jfloat op2) { return op1 * op2; } 33 inline jfloat BytecodeInterpreter::VMfloatDiv(jfloat op1, jfloat op2) { return op1 / op2; } 34 inline jfloat BytecodeInterpreter::VMfloatRem(jfloat op1, jfloat op2) { return fmod(op1, op2); } 35 36 inline jfloat BytecodeInterpreter::VMfloatNeg(jfloat op) { return -op; } 37 38 inline int32_t BytecodeInterpreter::VMfloatCompare(jfloat op1, jfloat op2, int32_t direction) { 39 return ( op1 < op2 ? -1 : 40 op1 > op2 ? 1 : 41 op1 == op2 ? 0 : 42 (direction == -1 || direction == 1) ? direction : 0); 43 44 } 45 46 inline void BytecodeInterpreter::VMmemCopy64(uint32_t to[2], const uint32_t from[2]) { 47 // x86 can do unaligned copies but not 64bits at a time 48 to[0] = from[0]; to[1] = from[1]; 49 } 50 51 // The long operations depend on compiler support for "long long" on x86 52 53 inline jlong BytecodeInterpreter::VMlongAdd(jlong op1, jlong op2) { 54 return op1 + op2; 55 } 56 57 inline jlong BytecodeInterpreter::VMlongAnd(jlong op1, jlong op2) { 58 return op1 & op2; 59 } 60 61 inline jlong BytecodeInterpreter::VMlongDiv(jlong op1, jlong op2) { 62 // QQQ what about check and throw... 63 return op1 / op2; 64 } 65 66 inline jlong BytecodeInterpreter::VMlongMul(jlong op1, jlong op2) { 67 return op1 * op2; 68 } 69 70 inline jlong BytecodeInterpreter::VMlongOr(jlong op1, jlong op2) { 71 return op1 | op2; 72 } 73 74 inline jlong BytecodeInterpreter::VMlongSub(jlong op1, jlong op2) { 75 return op1 - op2; 76 } 77 78 inline jlong BytecodeInterpreter::VMlongXor(jlong op1, jlong op2) { 79 return op1 ^ op2; 80 } 81 82 inline jlong BytecodeInterpreter::VMlongRem(jlong op1, jlong op2) { 83 return op1 % op2; 84 } 85 86 inline jlong BytecodeInterpreter::VMlongUshr(jlong op1, jint op2) { 87 // CVM did this 0x3f mask, is the really needed??? QQQ 88 return ((unsigned long long) op1) >> (op2 & 0x3F); 89 } 90 91 inline jlong BytecodeInterpreter::VMlongShr(jlong op1, jint op2) { 92 return op1 >> (op2 & 0x3F); 93 } 94 95 inline jlong BytecodeInterpreter::VMlongShl(jlong op1, jint op2) { 96 return op1 << (op2 & 0x3F); 97 } 98 99 inline jlong BytecodeInterpreter::VMlongNeg(jlong op) { 100 return -op; 101 } 102 103 inline jlong BytecodeInterpreter::VMlongNot(jlong op) { 104 return ~op; 105 } 106 107 inline int32_t BytecodeInterpreter::VMlongLtz(jlong op) { 108 return (op <= 0); 109 } 110 111 inline int32_t BytecodeInterpreter::VMlongGez(jlong op) { 112 return (op >= 0); 113 } 114 115 inline int32_t BytecodeInterpreter::VMlongEqz(jlong op) { 116 return (op == 0); 117 } 118 119 inline int32_t BytecodeInterpreter::VMlongEq(jlong op1, jlong op2) { 120 return (op1 == op2); 121 } 122 123 inline int32_t BytecodeInterpreter::VMlongNe(jlong op1, jlong op2) { 124 return (op1 != op2); 125 } 126 127 inline int32_t BytecodeInterpreter::VMlongGe(jlong op1, jlong op2) { 128 return (op1 >= op2); 129 } 130 131 inline int32_t BytecodeInterpreter::VMlongLe(jlong op1, jlong op2) { 132 return (op1 <= op2); 133 } 134 135 inline int32_t BytecodeInterpreter::VMlongLt(jlong op1, jlong op2) { 136 return (op1 < op2); 137 } 138 139 inline int32_t BytecodeInterpreter::VMlongGt(jlong op1, jlong op2) { 140 return (op1 > op2); 141 } 142 143 inline int32_t BytecodeInterpreter::VMlongCompare(jlong op1, jlong op2) { 144 return (VMlongLt(op1, op2) ? -1 : VMlongGt(op1, op2) ? 1 : 0); 145 } 146 147 // Long conversions 148 149 inline jdouble BytecodeInterpreter::VMlong2Double(jlong val) { 150 return (jdouble) val; 151 } 152 153 inline jfloat BytecodeInterpreter::VMlong2Float(jlong val) { 154 return (jfloat) val; 155 } 156 157 inline jint BytecodeInterpreter::VMlong2Int(jlong val) { 158 return (jint) val; 159 } 160 161 // Double Arithmetic 162 163 inline jdouble BytecodeInterpreter::VMdoubleAdd(jdouble op1, jdouble op2) { 164 return op1 + op2; 165 } 166 167 inline jdouble BytecodeInterpreter::VMdoubleDiv(jdouble op1, jdouble op2) { 168 // Divide by zero... QQQ 169 return op1 / op2; 170 } 171 172 inline jdouble BytecodeInterpreter::VMdoubleMul(jdouble op1, jdouble op2) { 173 return op1 * op2; 174 } 175 176 inline jdouble BytecodeInterpreter::VMdoubleNeg(jdouble op) { 177 return -op; 178 } 179 180 inline jdouble BytecodeInterpreter::VMdoubleRem(jdouble op1, jdouble op2) { 181 return fmod(op1, op2); 182 } 183 184 inline jdouble BytecodeInterpreter::VMdoubleSub(jdouble op1, jdouble op2) { 185 return op1 - op2; 186 } 187 188 inline int32_t BytecodeInterpreter::VMdoubleCompare(jdouble op1, jdouble op2, int32_t direction) { 189 return ( op1 < op2 ? -1 : 190 op1 > op2 ? 1 : 191 op1 == op2 ? 0 : 192 (direction == -1 || direction == 1) ? direction : 0); 193 } 194 195 // Double Conversions 196 197 inline jfloat BytecodeInterpreter::VMdouble2Float(jdouble val) { 198 return (jfloat) val; 199 } 200 201 // Float Conversions 202 203 inline jdouble BytecodeInterpreter::VMfloat2Double(jfloat op) { 204 return (jdouble) op; 205 } 206 207 // Integer Arithmetic 208 209 inline jint BytecodeInterpreter::VMintAdd(jint op1, jint op2) { 210 return op1 + op2; 211 } 212 213 inline jint BytecodeInterpreter::VMintAnd(jint op1, jint op2) { 214 return op1 & op2; 215 } 216 217 inline jint BytecodeInterpreter::VMintDiv(jint op1, jint op2) { 218 /* it's possible we could catch this special case implicitly */ 219 if ((juint)op1 == 0x80000000 && op2 == -1) return op1; 220 else return op1 / op2; 221 } 222 223 inline jint BytecodeInterpreter::VMintMul(jint op1, jint op2) { 224 return op1 * op2; 225 } 226 227 inline jint BytecodeInterpreter::VMintNeg(jint op) { 228 return -op; 229 } 230 231 inline jint BytecodeInterpreter::VMintOr(jint op1, jint op2) { 232 return op1 | op2; 233 } 234 235 inline jint BytecodeInterpreter::VMintRem(jint op1, jint op2) { 236 /* it's possible we could catch this special case implicitly */ 237 if ((juint)op1 == 0x80000000 && op2 == -1) return 0; 238 else return op1 % op2; 239 } 240 241 inline jint BytecodeInterpreter::VMintShl(jint op1, jint op2) { 242 return op1 << op2; 243 } 244 245 inline jint BytecodeInterpreter::VMintShr(jint op1, jint op2) { 246 return op1 >> (op2 & 0x1f); 247 } 248 249 inline jint BytecodeInterpreter::VMintSub(jint op1, jint op2) { 250 return op1 - op2; 251 } 252 253 inline jint BytecodeInterpreter::VMintUshr(jint op1, jint op2) { 254 return ((juint) op1) >> (op2 & 0x1f); 255 } 256 257 inline jint BytecodeInterpreter::VMintXor(jint op1, jint op2) { 258 return op1 ^ op2; 259 } 260 261 inline jdouble BytecodeInterpreter::VMint2Double(jint val) { 262 return (jdouble) val; 263 } 264 265 inline jfloat BytecodeInterpreter::VMint2Float(jint val) { 266 return (jfloat) val; 267 } 268 269 inline jlong BytecodeInterpreter::VMint2Long(jint val) { 270 return (jlong) val; 271 } 272 273 inline jchar BytecodeInterpreter::VMint2Char(jint val) { 274 return (jchar) val; 275 } 276 277 inline jshort BytecodeInterpreter::VMint2Short(jint val) { 278 return (jshort) val; 279 } 280 281 inline jbyte BytecodeInterpreter::VMint2Byte(jint val) { 282 return (jbyte) val; 283 } 284 285 #endif // CPU_X86_VM_BYTECODEINTERPRETER_X86_INLINE_HPP