| commit | 48d082af38f692a27b4fb8caf28dbb426d69424a | [log] [tgz] |
|---|---|---|
| author | oth <oth@chromium.org> | Mon Mar 21 17:08:21 2016 |
| committer | Commit bot <commit-bot@chromium.org> | Mon Mar 21 17:09:49 2016 |
| tree | 06e80edecb00c1d228be0a37150b42f6ba24e088 | |
| parent | d50d7e18511c9cac1cdea54db6812107ec36a060 [diff] |
[interpreter] Add support for scalable operands. This change introduces wide prefix bytecodes to support wide (16-bit) and extra-wide (32-bit) operands. It retires the previous wide-bytecodes and reduces the number of operand types. Operands are now either scalable or fixed size. Scalable operands increase in width when a bytecode is prefixed with wide or extra-wide. The bytecode handler table is extended to 256*3 entries. The first 256 entries are used for bytecodes with 8-bit operands, the second 256 entries are used for bytecodes with operands that scale to 16-bits, and the third group of 256 entries are used for bytecodes with operands that scale to 32-bits. LOG=N BUG=v8:4747,v8:4280 Review URL: https://codereview.chromium.org/1783483002 Cr-Commit-Position: refs/heads/master@{#34955}
V8 is Google's open source JavaScript engine.
V8 implements ECMAScript as specified in ECMA-262.
V8 is written in C++ and is used in Google Chrome, the open source browser from Google.
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V8 Project page: https://github.com/v8/v8/wiki
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