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| author | Douglas Crosher <info@jsstats.com> | 2016-03-10 13:59:05 +1100 |
|---|---|---|
| committer | Douglas Crosher <info@jsstats.com> | 2016-03-10 13:59:05 +1100 |
| commit | 87f88940cc49efeea6df618ed237f42730e30dc3 (patch) | |
| tree | 90e98d7420391f79c9c5f9eb963395f955ade28b /AstSemantics.md | |
| parent | e6021f003b1dd5b1d37f4dfe4d7d97e8c60dbba7 (diff) | |
| download | nanowasm-design-87f88940cc49efeea6df618ed237f42730e30dc3.tar.gz | |
Change the argument to grow memory to be in units of pages.
Diffstat (limited to 'AstSemantics.md')
| -rw-r--r-- | AstSemantics.md | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/AstSemantics.md b/AstSemantics.md index 540cd3e..cb73c63 100644 --- a/AstSemantics.md +++ b/AstSemantics.md @@ -200,13 +200,13 @@ Out of bounds accesses trap. ### Resizing -In the MVP, linear memory can be resized by a `grow_memory` operator. This -operator requires its operand to be a multiple of the WebAssembly page size, +In the MVP, linear memory can be resized by a `grow_memory` operator. The +operand to this operator is in units of the WebAssembly page size, which is 64KiB on all engines (though large page support may be added in the [future](FutureFeatures.md#large-page-support)). - * `grow_memory` : grow linear memory by a given unsigned delta which - must be a multiple of the page size. Return the previous memory size. + * `grow_memory` : grow linear memory by a given unsigned delta of pages. + Return the previous memory size in bytes. As stated [above](AstSemantics.md#linear-memory), linear memory is contiguous, meaning there are no "holes" in the linear address space. After the |