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Diffstat (limited to 'ARCHITECTURE.md')
| -rw-r--r-- | ARCHITECTURE.md | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md index 28607da..d3816d0 100644 --- a/ARCHITECTURE.md +++ b/ARCHITECTURE.md @@ -17,7 +17,8 @@ Some key differences are: ## Bytecode Format To improve performance and reduce code size, instructions are encoded as enum variants instead of opcodes. -This allows preprocessing the bytecode into a more compact format, which can be loaded directly into memory and executed without decoding later. This can skip the decoding step entirely on resource-constrained devices where memory is limited. +This allows preprocessing the bytecode into a more compact format, which can be loaded directly into memory and executed without decoding later. This can skip the decoding step entirely on resource-constrained devices where memory is limited. See this [blog post](https://wasmer.io/posts/improving-with-zero-copy-deserialization) by Wasmer +for more details which inspired this design. Some instructions are split into multiple variants to reduce the size of the enum (e.g. `br_table` and `br_label`). Additionally, label instructions contain offsets relative to the current instruction to make branching faster and easier to implement. |