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Update string.(lift|lower)_memory to read u32 + string.size #102

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Update string.(lift|lower)_memory to read u32 + string.size #102

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6 changes: 3 additions & 3 deletions proposals/interface-types/working-notes/Instructions.md
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Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,7 @@ string.size #encoding

The type of this instruction is:
```
[string] -> [i32]
[string] -> [u32]
```

The output is the number of bytes needed to represent the input string in `#encoding`.
Expand All @@ -125,7 +125,7 @@ string.lift_memory #memidx #encoding

The type of this instruction is:
```
[$base: i32, $len: i32] -> [string]
[$base: u32, $len: u32] -> [string]
```

The output is a sequence of unicode code points taken by interpreting `store.memory[$memidx].bytes[$base .. $base + $len]` with `#encoding`.
Expand All @@ -141,7 +141,7 @@ string.lower_memory #memidx #encoding

The type of this instruction is:
```
[$base: i32, string] -> []
[$base: u32, string] -> []
```

The instruction will encode the string with `#encoding` into the memory specified by `#memidx` at the offset `$base`.
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