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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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582 void Generate(MacroAssembler* masm); | 582 void Generate(MacroAssembler* masm); |
583 void GenerateCall(MacroAssembler* masm, ApiFunction *function); | 583 void GenerateCall(MacroAssembler* masm, ApiFunction *function); |
584 | 584 |
585 private: | 585 private: |
586 Major MajorKey() { return DirectCEntry; } | 586 Major MajorKey() { return DirectCEntry; } |
587 int MinorKey() { return 0; } | 587 int MinorKey() { return 0; } |
588 const char* GetName() { return "DirectCEntryStub"; } | 588 const char* GetName() { return "DirectCEntryStub"; } |
589 }; | 589 }; |
590 | 590 |
591 | 591 |
592 // Generate code the to load an element from a pixel array. The receiver is | 592 // Generate code to load an element from a pixel array. The receiver is assumed |
593 // assumed to not be a smi and to have elements, the caller must guarantee this | 593 // to not be a smi and to have elements, the caller must guarantee this |
594 // precondition. If the receiver does not have elements that are pixel arrays, | 594 // precondition. If key is not a smi, then the generated code branches to |
595 // the generated code jumps to not_pixel_array. If key is not a smi, then the | 595 // key_not_smi. Callers can specify NULL for key_not_smi to signal that a smi |
596 // generated code branches to key_not_smi. Callers can specify NULL for | 596 // check has already been performed on key so that the smi check is not |
597 // key_not_smi to signal that a smi check has already been performed on key so | 597 // generated. If key is not a valid index within the bounds of the pixel array, |
598 // that the smi check is not generated . If key is not a valid index within the | 598 // the generated code jumps to out_of_range. receiver, key and elements are |
599 // bounds of the pixel array, the generated code jumps to out_of_range. | 599 // unchanged throughout the generated code sequence. |
600 void GenerateFastPixelArrayLoad(MacroAssembler* masm, | 600 void GenerateFastPixelArrayLoad(MacroAssembler* masm, |
601 Register receiver, | 601 Register receiver, |
602 Register key, | 602 Register key, |
603 Register elements_map, | 603 Register elements_map, |
604 Register elements, | 604 Register elements, |
605 Register scratch1, | 605 Register scratch1, |
606 Register scratch2, | 606 Register scratch2, |
607 Register result, | 607 Register result, |
608 Label* not_pixel_array, | 608 Label* not_pixel_array, |
609 Label* key_not_smi, | 609 Label* key_not_smi, |
610 Label* out_of_range); | 610 Label* out_of_range); |
611 | 611 |
| 612 // Generate code to store an element into a pixel array, clamping values between |
| 613 // [0..255]. The receiver is assumed to not be a smi and to have elements, the |
| 614 // caller must guarantee this precondition. If key is not a smi, then the |
| 615 // generated code branches to key_not_smi. Callers can specify NULL for |
| 616 // key_not_smi to signal that a smi check has already been performed on key so |
| 617 // that the smi check is not generated. If value is not a smi, the generated |
| 618 // code will branch to value_not_smi. If the receiver doesn't have pixel array |
| 619 // elements, the generated code will branch to not_pixel_array, unless |
| 620 // not_pixel_array is NULL, in which case the caller must ensure that the |
| 621 // receiver has pixel array elements. If key is not a valid index within the |
| 622 // bounds of the pixel array, the generated code jumps to out_of_range. If |
| 623 // load_elements_from_receiver is true, then the elements of receiver is loaded |
| 624 // into elements, otherwise elements is assumed to already be the receiver's |
| 625 // elements. If load_elements_map_from_elements is true, elements_map is loaded |
| 626 // from elements, otherwise it is assumed to already contain the element map. |
| 627 void GenerateFastPixelArrayStore(MacroAssembler* masm, |
| 628 Register receiver, |
| 629 Register key, |
| 630 Register value, |
| 631 Register elements, |
| 632 Register elements_map, |
| 633 Register scratch1, |
| 634 Register scratch2, |
| 635 bool load_elements_from_receiver, |
| 636 bool load_elements_map_from_elements, |
| 637 Label* key_not_smi, |
| 638 Label* value_not_smi, |
| 639 Label* not_pixel_array, |
| 640 Label* out_of_range); |
612 | 641 |
613 } } // namespace v8::internal | 642 } } // namespace v8::internal |
614 | 643 |
615 #endif // V8_ARM_CODE_STUBS_ARM_H_ | 644 #endif // V8_ARM_CODE_STUBS_ARM_H_ |
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