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diff --git a/OpenSim/Region/ExtensionsScriptModule/Engines/JVMEngine/JVM/Interpreter.Logic.cs b/OpenSim/Region/ExtensionsScriptModule/Engines/JVMEngine/JVM/Interpreter.Logic.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSim Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using OpenSim.Region.ExtensionsScriptModule.Engines.JVMEngine.Types;
29using OpenSim.Region.ExtensionsScriptModule.Engines.JVMEngine.Types.PrimitiveTypes;
30
31namespace OpenSim.Region.ExtensionsScriptModule.Engines.JVMEngine.JVM
32{
33 partial class Thread
34 {
35 private partial class Interpreter
36 {
37 private bool IsLogicOpCode(byte opcode)
38 {
39 bool result = false;
40 switch (opcode)
41 {
42 case (byte) (byte) OpCode.iconst_m1:
43 Int m_int = new Int();
44 m_int.mValue = -1;
45 m_thread.m_currentFrame.OpStack.Push(m_int);
46 result = true;
47 break;
48 case (byte) (byte) OpCode.iconst_0:
49 m_int = new Int();
50 m_int.mValue = 0;
51 m_thread.m_currentFrame.OpStack.Push(m_int);
52 result = true;
53 break;
54 case (byte) (byte) OpCode.iconst_1:
55 m_int = new Int();
56 m_int.mValue = 1;
57 m_thread.m_currentFrame.OpStack.Push(m_int);
58 result = true;
59 break;
60 case (byte) (byte) OpCode.iconst_2:
61 m_int = new Int();
62 m_int.mValue = 2;
63 m_thread.m_currentFrame.OpStack.Push(m_int);
64 result = true;
65 break;
66 case (byte) (byte) OpCode.iconst_3:
67 m_int = new Int();
68 m_int.mValue = 3;
69 m_thread.m_currentFrame.OpStack.Push(m_int);
70 break;
71 case (byte) (byte) OpCode.iconst_4:
72 m_int = new Int();
73 m_int.mValue = 4;
74 m_thread.m_currentFrame.OpStack.Push(m_int);
75 result = true;
76 break;
77 case (byte) OpCode.iconst_5:
78 m_int = new Int();
79 m_int.mValue = 5;
80 m_thread.m_currentFrame.OpStack.Push(m_int);
81 result = true;
82 break;
83 case (byte) OpCode.fconst_0:
84 Float m_float = new Float();
85 m_float.mValue = 0.0f;
86 m_thread.m_currentFrame.OpStack.Push(m_float);
87 result = true;
88 break;
89 case (byte) OpCode.fconst_1:
90 m_float = new Float();
91 m_float.mValue = 1.0f;
92 m_thread.m_currentFrame.OpStack.Push(m_float);
93 result = true;
94 break;
95 case (byte) OpCode.fconst_2:
96 m_float = new Float();
97 m_float.mValue = 2.0f;
98 m_thread.m_currentFrame.OpStack.Push(m_float);
99 result = true;
100 break;
101 case (byte) OpCode.bipush: //is this right? this should be pushing a byte onto stack not int?
102 int pushvalue = (int) GlobalMemory.MethodArea.MethodBuffer[m_thread.PC];
103 Int pushInt = new Int();
104 pushInt.mValue = pushvalue;
105 m_thread.m_currentFrame.OpStack.Push(pushInt);
106 m_thread.PC++;
107 result = true;
108 break;
109 case (byte) OpCode.sipush:
110 short pushvalue2 =
111 (short)
112 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
113 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
114 Int pushInt2 = new Int();
115 pushInt2.mValue = pushvalue2;
116 m_thread.m_currentFrame.OpStack.Push(pushInt2);
117 m_thread.PC += 2;
118 result = true;
119 break;
120 case (byte) OpCode.fload:
121 short findex1 = (short) ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC]));
122 Float fload = new Float();
123 if (m_thread.m_currentFrame.LocalVariables[findex1] != null)
124 {
125 if (m_thread.m_currentFrame.LocalVariables[findex1] is Float)
126 {
127 fload.mValue = ((Float) m_thread.m_currentFrame.LocalVariables[findex1]).mValue;
128 m_thread.m_currentFrame.OpStack.Push(fload);
129 }
130 }
131 m_thread.PC++;
132 result = true;
133 break;
134 case (byte) OpCode.iload_0:
135 if (m_thread.m_currentFrame.LocalVariables[0] != null)
136 {
137 if (m_thread.m_currentFrame.LocalVariables[0] is Int)
138 {
139 Int newInt = new Int();
140 newInt.mValue = ((Int) m_thread.m_currentFrame.LocalVariables[0]).mValue;
141 m_thread.m_currentFrame.OpStack.Push(newInt);
142 }
143 }
144 result = true;
145 break;
146 case (byte) OpCode.iload_1:
147 if (m_thread.m_currentFrame.LocalVariables[1] != null)
148 {
149 if (m_thread.m_currentFrame.LocalVariables[1] is Int)
150 {
151 Int newInt = new Int();
152 newInt.mValue = ((Int) m_thread.m_currentFrame.LocalVariables[1]).mValue;
153 m_thread.m_currentFrame.OpStack.Push(newInt);
154 }
155 }
156 result = true;
157 break;
158 case (byte) OpCode.fload_0:
159 if (m_thread.m_currentFrame.LocalVariables[0] != null)
160 {
161 if (m_thread.m_currentFrame.LocalVariables[0] is Float)
162 {
163 Float newfloat = new Float();
164 newfloat.mValue = ((Float) m_thread.m_currentFrame.LocalVariables[0]).mValue;
165 m_thread.m_currentFrame.OpStack.Push(newfloat);
166 }
167 }
168 result = true;
169 break;
170 case (byte) OpCode.fload_1:
171 if (m_thread.m_currentFrame.LocalVariables[1] != null)
172 {
173 if (m_thread.m_currentFrame.LocalVariables[1] is Float)
174 {
175 Float newfloat = new Float();
176 newfloat.mValue = ((Float) m_thread.m_currentFrame.LocalVariables[1]).mValue;
177 m_thread.m_currentFrame.OpStack.Push(newfloat);
178 }
179 }
180 result = true;
181 break;
182 case (byte) OpCode.fload_2:
183 if (m_thread.m_currentFrame.LocalVariables[2] != null)
184 {
185 if (m_thread.m_currentFrame.LocalVariables[2] is Float)
186 {
187 Float newfloat = new Float();
188 newfloat.mValue = ((Float) m_thread.m_currentFrame.LocalVariables[2]).mValue;
189 m_thread.m_currentFrame.OpStack.Push(newfloat);
190 }
191 }
192 result = true;
193 break;
194 case (byte) OpCode.fload_3:
195 if (m_thread.m_currentFrame.LocalVariables[3] != null)
196 {
197 if (m_thread.m_currentFrame.LocalVariables[3] is Float)
198 {
199 Float newfloat = new Float();
200 newfloat.mValue = ((Float) m_thread.m_currentFrame.LocalVariables[3]).mValue;
201 m_thread.m_currentFrame.OpStack.Push(newfloat);
202 }
203 }
204 result = true;
205 break;
206 case (byte) OpCode.istore:
207 short findex3 = (short) ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC]));
208 BaseType istor = m_thread.m_currentFrame.OpStack.Pop();
209 if (istor is Int)
210 {
211 m_thread.m_currentFrame.LocalVariables[findex3] = (Int) istor;
212 }
213 m_thread.PC++;
214 result = true;
215 break;
216 case (byte) OpCode.fstore:
217 short findex = (short) ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC]));
218 BaseType fstor = m_thread.m_currentFrame.OpStack.Pop();
219 if (fstor is Float)
220 {
221 m_thread.m_currentFrame.LocalVariables[findex] = (Float) fstor;
222 }
223 m_thread.PC++;
224 result = true;
225 break;
226 case (byte) OpCode.istore_0:
227 BaseType baset = m_thread.m_currentFrame.OpStack.Pop();
228 if (baset is Int)
229 {
230 m_thread.m_currentFrame.LocalVariables[0] = (Int) baset;
231 }
232 result = true;
233 break;
234 case (byte) OpCode.istore_1:
235 baset = m_thread.m_currentFrame.OpStack.Pop();
236 if (baset is Int)
237 {
238 m_thread.m_currentFrame.LocalVariables[1] = (Int) baset;
239 }
240 result = true;
241 break;
242 case (byte) OpCode.fstore_0:
243 baset = m_thread.m_currentFrame.OpStack.Pop();
244 if (baset is Float)
245 {
246 m_thread.m_currentFrame.LocalVariables[0] = (Float) baset;
247 }
248 result = true;
249 break;
250 case (byte) OpCode.fstore_1:
251 baset = m_thread.m_currentFrame.OpStack.Pop();
252 if (baset is Float)
253 {
254 m_thread.m_currentFrame.LocalVariables[1] = (Float) baset;
255 }
256 result = true;
257 break;
258 case (byte) OpCode.fstore_2:
259 baset = m_thread.m_currentFrame.OpStack.Pop();
260 if (baset is Float)
261 {
262 m_thread.m_currentFrame.LocalVariables[2] = (Float) baset;
263 }
264 result = true;
265 break;
266 case (byte) OpCode.fstore_3:
267 baset = m_thread.m_currentFrame.OpStack.Pop();
268 if (baset is Float)
269 {
270 m_thread.m_currentFrame.LocalVariables[3] = (Float) baset;
271 }
272 result = true;
273 break;
274 case (byte) OpCode.pop:
275 m_thread.m_currentFrame.OpStack.Pop();
276 result = true;
277 break;
278 case (byte) OpCode.fadd:
279 BaseType bf2 = m_thread.m_currentFrame.OpStack.Pop();
280 BaseType bf1 = m_thread.m_currentFrame.OpStack.Pop();
281 if (bf1 is Float && bf2 is Float)
282 {
283 Float nflt = new Float();
284 nflt.mValue = ((Float) bf1).mValue + ((Float) bf2).mValue;
285 m_thread.m_currentFrame.OpStack.Push(nflt);
286 }
287 result = true;
288 break;
289 case (byte) OpCode.fsub:
290 BaseType bsf2 = m_thread.m_currentFrame.OpStack.Pop();
291 BaseType bsf1 = m_thread.m_currentFrame.OpStack.Pop();
292 if (bsf1 is Float && bsf2 is Float)
293 {
294 Float resf = new Float();
295 resf.mValue = ((Float) bsf1).mValue - ((Float) bsf2).mValue;
296 m_thread.m_currentFrame.OpStack.Push(resf);
297 }
298 result = true;
299 break;
300 case (byte) OpCode.imul: //check the order of the two values off the stack is correct
301 BaseType bs2 = m_thread.m_currentFrame.OpStack.Pop();
302 BaseType bs1 = m_thread.m_currentFrame.OpStack.Pop();
303 if (bs1 is Int && bs2 is Int)
304 {
305 Int nInt = new Int();
306 nInt.mValue = ((Int) bs1).mValue*((Int) bs2).mValue;
307 m_thread.m_currentFrame.OpStack.Push(nInt);
308 }
309 result = true;
310 break;
311 case (byte) OpCode.iinc:
312 if (m_thread.m_currentFrame.LocalVariables[GlobalMemory.MethodArea.MethodBuffer[m_thread.PC]] !=
313 null)
314 {
315 if (
316 m_thread.m_currentFrame.LocalVariables[GlobalMemory.MethodArea.MethodBuffer[m_thread.PC]
317 ] is Int)
318 {
319 ((Int)
320 m_thread.m_currentFrame.LocalVariables[
321 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC]]).mValue +=
322 (sbyte) GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1];
323 }
324 }
325 m_thread.PC += 2;
326 result = true;
327 break;
328 case (byte) OpCode.f2i:
329 BaseType conv1 = m_thread.m_currentFrame.OpStack.Pop();
330 if (conv1 is Float)
331 {
332 Int newconv = new Int();
333 newconv.mValue = (int) ((Float) conv1).mValue;
334 m_thread.m_currentFrame.OpStack.Push(newconv);
335 }
336 result = true;
337 break;
338 case (byte) OpCode.fcmpl:
339 BaseType flcom2 = m_thread.m_currentFrame.OpStack.Pop();
340 BaseType flcom1 = m_thread.m_currentFrame.OpStack.Pop();
341 if (flcom1 is Float && flcom2 is Float)
342 {
343 Int compres = new Int();
344 if (((Float) flcom1).mValue < ((Float) flcom2).mValue)
345 {
346 compres.mValue = -1;
347 }
348 else if (((Float) flcom1).mValue > ((Float) flcom2).mValue)
349 {
350 compres.mValue = 1;
351 }
352 else
353 {
354 compres.mValue = 0;
355 }
356 m_thread.m_currentFrame.OpStack.Push(compres);
357 }
358 result = true;
359 break;
360 case (byte) OpCode.fcmpg:
361 flcom2 = m_thread.m_currentFrame.OpStack.Pop();
362 flcom1 = m_thread.m_currentFrame.OpStack.Pop();
363 if (flcom1 is Float && flcom2 is Float)
364 {
365 Int compres = new Int();
366 if (((Float) flcom1).mValue < ((Float) flcom2).mValue)
367 {
368 compres.mValue = -1;
369 }
370 else if (((Float) flcom1).mValue > ((Float) flcom2).mValue)
371 {
372 compres.mValue = 1;
373 }
374 else
375 {
376 compres.mValue = 0;
377 }
378 m_thread.m_currentFrame.OpStack.Push(compres);
379 }
380 result = true;
381 break;
382 case (byte) OpCode.ifge:
383 short compareoffset2 =
384 (short)
385 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
386 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
387 BaseType compe1 = m_thread.m_currentFrame.OpStack.Pop();
388 if (compe1 is Int)
389 {
390 if (((Int) compe1).mValue >= 0)
391 {
392 m_thread.PC += -1 + compareoffset2;
393 }
394 else
395 {
396 m_thread.PC += 2;
397 }
398 }
399 else
400 {
401 m_thread.PC += 2;
402 }
403 result = true;
404 break;
405 case (byte) OpCode.ifle:
406 short compareoffset1 =
407 (short)
408 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
409 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
410 BaseType comp1 = m_thread.m_currentFrame.OpStack.Pop();
411 if (comp1 is Int)
412 {
413 if (((Int) comp1).mValue <= 0)
414 {
415 m_thread.PC += -1 + compareoffset1;
416 }
417 else
418 {
419 m_thread.PC += 2;
420 }
421 }
422 else
423 {
424 m_thread.PC += 2;
425 }
426 result = true;
427 break;
428 case (byte) OpCode.if_icmpge:
429 short compareoffset =
430 (short)
431 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
432 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
433 BaseType bc2 = m_thread.m_currentFrame.OpStack.Pop();
434 BaseType bc1 = m_thread.m_currentFrame.OpStack.Pop();
435 if (bc1 is Int && bc2 is Int)
436 {
437 //Console.WriteLine("comparing " + ((Int)bc1).mValue + " and " + ((Int)bc2).mValue);
438 if (((Int) bc1).mValue >= ((Int) bc2).mValue)
439 {
440 // Console.WriteLine("branch compare true , offset is " +compareoffset);
441 // Console.WriteLine("current PC is " + this._mThread.PC);
442 m_thread.PC += -1 + compareoffset;
443 //Console.WriteLine("new PC is " + this._mThread.PC);
444 }
445 else
446 {
447 //Console.WriteLine("branch compare false");
448 m_thread.PC += 2;
449 }
450 }
451 else
452 {
453 m_thread.PC += 2;
454 }
455 result = true;
456 break;
457 case (byte) OpCode.if_icmple:
458 short compareloffset =
459 (short)
460 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
461 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
462 BaseType bcl2 = m_thread.m_currentFrame.OpStack.Pop();
463 BaseType bcl1 = m_thread.m_currentFrame.OpStack.Pop();
464 if (bcl1 is Int && bcl2 is Int)
465 {
466 //Console.WriteLine("comparing " + ((Int)bcl1).mValue + " and " + ((Int)bcl2).mValue);
467 if (((Int) bcl1).mValue <= ((Int) bcl2).mValue)
468 {
469 // Console.WriteLine("branch compare true , offset is " + compareloffset);
470 // Console.WriteLine("current PC is " + this._mThread.PC);
471 m_thread.PC += -1 + compareloffset;
472 // Console.WriteLine("new PC is " + this._mThread.PC);
473 }
474 else
475 {
476 //Console.WriteLine("branch compare false");
477 m_thread.PC += 2;
478 }
479 }
480 else
481 {
482 m_thread.PC += 2;
483 }
484 result = true;
485 break;
486 case (byte) OpCode._goto:
487 short offset =
488 (short)
489 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
490 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
491 m_thread.PC += -1 + offset;
492 result = true;
493 break;
494 case (byte) OpCode.getstatic:
495 short fieldrefIndex =
496 (short)
497 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
498 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
499 if (m_thread.currentClass.m_constantsPool[fieldrefIndex - 1] is ClassRecord.PoolFieldRef)
500 {
501 if (
502 ((ClassRecord.PoolFieldRef) m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).
503 mClass.Name.Value == m_thread.currentClass.MClass.Name.Value)
504 {
505 //from this class
506 if (
507 m_thread.currentClass.StaticFields.ContainsKey(
508 ((ClassRecord.PoolFieldRef)
509 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.Name.Value))
510 {
511 if (
512 m_thread.currentClass.StaticFields[
513 ((ClassRecord.PoolFieldRef)
514 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.Name.
515 Value] is Float)
516 {
517 Float retFloat = new Float();
518 retFloat.mValue =
519 ((Float)
520 m_thread.currentClass.StaticFields[
521 ((ClassRecord.PoolFieldRef)
522 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.
523 Name.Value]).mValue;
524 m_thread.m_currentFrame.OpStack.Push(retFloat);
525 }
526 else if (
527 m_thread.currentClass.StaticFields[
528 ((ClassRecord.PoolFieldRef)
529 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.
530 Name.Value] is Int)
531 {
532 Int retInt = new Int();
533 retInt.mValue =
534 ((Int)
535 m_thread.currentClass.StaticFields[
536 ((ClassRecord.PoolFieldRef)
537 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).
538 mNameType.Name.Value]).mValue;
539 // Console.WriteLine("getting static field, " + retInt.mValue);
540 m_thread.m_currentFrame.OpStack.Push(retInt);
541 }
542 }
543 }
544 else
545 {
546 //get from a different class
547 }
548 }
549 m_thread.PC += 2;
550 result = true;
551 break;
552 case (byte) OpCode.putstatic:
553 fieldrefIndex =
554 (short)
555 ((GlobalMemory.MethodArea.MethodBuffer[m_thread.PC] << 8) +
556 GlobalMemory.MethodArea.MethodBuffer[m_thread.PC + 1]);
557 BaseType addstatic = m_thread.m_currentFrame.OpStack.Pop();
558 if (m_thread.currentClass.m_constantsPool[fieldrefIndex - 1] is ClassRecord.PoolFieldRef)
559 {
560 if (
561 ((ClassRecord.PoolFieldRef) m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).
562 mClass.Name.Value == m_thread.currentClass.MClass.Name.Value)
563 {
564 // this class
565 if (
566 m_thread.currentClass.StaticFields.ContainsKey(
567 ((ClassRecord.PoolFieldRef)
568 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.Name.Value))
569 {
570 if (addstatic is Float)
571 {
572 if (
573 m_thread.currentClass.StaticFields[
574 ((ClassRecord.PoolFieldRef)
575 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.
576 Name.Value] is Float)
577 {
578 Float newf = new Float();
579 newf.mValue = ((Float) addstatic).mValue;
580 m_thread.currentClass.StaticFields[
581 ((ClassRecord.PoolFieldRef)
582 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.
583 Name.Value] = newf;
584 }
585 }
586 else if (addstatic is Int)
587 {
588 if (
589 m_thread.currentClass.StaticFields[
590 ((ClassRecord.PoolFieldRef)
591 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.
592 Name.Value] is Int)
593 {
594 //Console.WriteLine("setting static field to " + ((Int)addstatic).mValue);
595 Int newi = new Int();
596 newi.mValue = ((Int) addstatic).mValue;
597 m_thread.currentClass.StaticFields[
598 ((ClassRecord.PoolFieldRef)
599 m_thread.currentClass.m_constantsPool[fieldrefIndex - 1]).mNameType.
600 Name.Value] = newi;
601 }
602 }
603 }
604 }
605 else
606 {
607 // a different class
608 }
609 }
610 m_thread.PC += 2;
611 result = true;
612 break;
613 }
614
615 return result;
616 }
617 }
618 }
619} \ No newline at end of file