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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 VM_CONSTANTS_DBC_H_ | 5 #ifndef VM_CONSTANTS_DBC_H_ |
6 #define VM_CONSTANTS_DBC_H_ | 6 #define 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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522 // - Op1, Op2, Op2 specify operand meaning. Possible values: | 522 // - Op1, Op2, Op2 specify operand meaning. Possible values: |
523 // | 523 // |
524 // ___ ignored / non-existent operand | 524 // ___ ignored / non-existent operand |
525 // num immediate operand | 525 // num immediate operand |
526 // lit constant literal from object pool | 526 // lit constant literal from object pool |
527 // reg register (unsigned FP relative local) | 527 // reg register (unsigned FP relative local) |
528 // xeg x-register (signed FP relative local) | 528 // xeg x-register (signed FP relative local) |
529 // tgt jump target relative to the PC of the current instruction | 529 // tgt jump target relative to the PC of the current instruction |
530 // | 530 // |
531 // TODO(vegorov) jump targets should be encoded relative to PC of the next | 531 // TODO(vegorov) jump targets should be encoded relative to PC of the next |
532 // instruction because PC is incremeted immediately after fetch | 532 // instruction because PC is incremented immediately after fetch |
533 // and before decoding. | 533 // and before decoding. |
534 // | 534 // |
535 #define BYTECODES_LIST(V) \ | 535 #define BYTECODES_LIST(V) \ |
536 V(Trap, 0, ___, ___, ___) \ | 536 V(Trap, 0, ___, ___, ___) \ |
537 V(Nop, A_D, num, lit, ___) \ | 537 V(Nop, A_D, num, lit, ___) \ |
538 V(Compile, 0, ___, ___, ___) \ | 538 V(Compile, 0, ___, ___, ___) \ |
539 V(HotCheck, A_D, num, num, ___) \ | 539 V(HotCheck, A_D, num, num, ___) \ |
540 V(Intrinsic, A, num, ___, ___) \ | 540 V(Intrinsic, A, num, ___, ___) \ |
541 V(Drop1, 0, ___, ___, ___) \ | 541 V(Drop1, 0, ___, ___, ___) \ |
542 V(DropR, A, num, ___, ___) \ | 542 V(DropR, A, num, ___, ___) \ |
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778 | 778 |
779 // After a comparison, the condition NEXT_IS_TRUE means the following | 779 // After a comparison, the condition NEXT_IS_TRUE means the following |
780 // instruction is executed if the comparision is true and skipped over overwise. | 780 // instruction is executed if the comparision is true and skipped over overwise. |
781 // Conidition NEXT_IS_FALSE means the following instruction is executed if the | 781 // Conidition NEXT_IS_FALSE means the following instruction is executed if the |
782 // comparison is false and skipped over otherwise. | 782 // comparison is false and skipped over otherwise. |
783 enum Condition { NEXT_IS_TRUE, NEXT_IS_FALSE }; | 783 enum Condition { NEXT_IS_TRUE, NEXT_IS_FALSE }; |
784 | 784 |
785 } // namespace dart | 785 } // namespace dart |
786 | 786 |
787 #endif // VM_CONSTANTS_DBC_H_ | 787 #endif // VM_CONSTANTS_DBC_H_ |
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