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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef RUNTIME_VM_CONSTANTS_DBC_H_ | 5 #ifndef RUNTIME_VM_CONSTANTS_DBC_H_ |
6 #define RUNTIME_VM_CONSTANTS_DBC_H_ | 6 #define RUNTIME_VM_CONSTANTS_DBC_H_ |
7 | 7 |
8 #include "platform/globals.h" | 8 #include "platform/globals.h" |
9 #include "platform/assert.h" | 9 #include "platform/assert.h" |
10 #include "platform/utils.h" | 10 #include "platform/utils.h" |
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528 // Clone context stored in TOS. | 528 // Clone context stored in TOS. |
529 // | 529 // |
530 // - MoveSpecial rA, D | 530 // - MoveSpecial rA, D |
531 // | 531 // |
532 // Copy special values from inside interpreter to FP[rA]. Currently only | 532 // Copy special values from inside interpreter to FP[rA]. Currently only |
533 // used to pass exception object (D = 0) and stack trace object (D = 1) to | 533 // used to pass exception object (D = 0) and stack trace object (D = 1) to |
534 // catch handler. | 534 // catch handler. |
535 // | 535 // |
536 // - InstantiateType D | 536 // - InstantiateType D |
537 // | 537 // |
538 // Instantiate type PP[D] with instantiator type arguments SP[0]. | 538 // Instantiate type PP[D] with instantiator type arguments SP[-1] and |
| 539 // function type arguments SP[0]. |
539 // | 540 // |
540 // - InstantiateTypeArgumentsTOS D | 541 // - InstantiateTypeArgumentsTOS D |
541 // | 542 // |
542 // Instantiate type arguments PP[D] with instantiator SP[0]. | 543 // Instantiate type arguments PP[D] with instantiator type arguments SP[-1] |
| 544 // and function type arguments SP[0]. |
543 // | 545 // |
544 // - InstanceOf | 546 // - InstanceOf |
545 // | 547 // |
546 // Test if instance SP[-3] with type arguments SP[-2] is a subtype of SP[-1] | 548 // Test if instance SP[-4] with instantiator type arguments SP[-3] and |
547 // using SubtypeTestCache SP[0], with result placed at top of stack. | 549 // function type arguments SP[-2] is a subtype of type SP[-1] using |
| 550 // SubtypeTestCache SP[0], with result placed at top of stack. |
548 // | 551 // |
549 // - AssertAssignable A, D | 552 // - AssertAssignable A, D |
550 // | 553 // |
551 // Assert that SP[-3] is assignable to variable named SP[0] of type | 554 // Assert that instance SP[-4] is assignable to variable named SP[0] of |
552 // SP[-1] with type arguments SP[-2] using SubtypeTestCache PP[D]. | 555 // type SP[-1] with instantiator type arguments SP[-3] and function type |
| 556 // arguments SP[-2] using SubtypeTestCache PP[D]. |
553 // If A is 1, then the instance may be a Smi. | 557 // If A is 1, then the instance may be a Smi. |
554 // | 558 // |
555 // - BadTypeError | 559 // - BadTypeError |
556 // | 560 // |
557 // If SP[-3] is non-null, throws a BadType error by calling into the runtime. | 561 // If SP[-4] is non-null, throws a BadType error by calling into the runtime. |
558 // Assumes that the stack is arranged the same as for AssertAssignable. | 562 // Assumes that the stack is arranged the same as for AssertAssignable. |
559 // | 563 // |
560 // - AssertBoolean A | 564 // - AssertBoolean A |
561 // | 565 // |
562 // Assert that TOS is a boolean (A = 1) or that TOS is not null (A = 0). | 566 // Assert that TOS is a boolean (A = 1) or that TOS is not null (A = 0). |
563 // | 567 // |
564 // - TestSmi rA, rD | 568 // - TestSmi rA, rD |
565 // | 569 // |
566 // If FP[rA] & FP[rD] != 0, then skip the next instruction. FP[rA] and FP[rD] | 570 // If FP[rA] & FP[rD] != 0, then skip the next instruction. FP[rA] and FP[rD] |
567 // must be Smis. | 571 // must be Smis. |
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983 | 987 |
984 // After a comparison, the condition NEXT_IS_TRUE means the following | 988 // After a comparison, the condition NEXT_IS_TRUE means the following |
985 // instruction is executed if the comparision is true and skipped over overwise. | 989 // instruction is executed if the comparision is true and skipped over overwise. |
986 // Conidition NEXT_IS_FALSE means the following instruction is executed if the | 990 // Conidition NEXT_IS_FALSE means the following instruction is executed if the |
987 // comparison is false and skipped over otherwise. | 991 // comparison is false and skipped over otherwise. |
988 enum Condition { NEXT_IS_TRUE, NEXT_IS_FALSE }; | 992 enum Condition { NEXT_IS_TRUE, NEXT_IS_FALSE }; |
989 | 993 |
990 } // namespace dart | 994 } // namespace dart |
991 | 995 |
992 #endif // RUNTIME_VM_CONSTANTS_DBC_H_ | 996 #endif // RUNTIME_VM_CONSTANTS_DBC_H_ |
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