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Spell out the "literal" operators. #380

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merged 4 commits into from
Oct 2, 2015
Merged

Spell out the "literal" operators. #380

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b798fd5
Spell out the "literal" operators.
sunfishcode Sep 29, 2015
1c14145
Clarify that all NaNs are supported.
sunfishcode Sep 29, 2015
ba76b25
Say "produced" instead of "copied" to match language elsewhere in the…
sunfishcode Sep 29, 2015
c84c8d2
Rename `literal` to `const`.
sunfishcode Oct 1, 2015
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12 changes: 9 additions & 3 deletions AstSemantics.md
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Expand Up @@ -346,10 +346,16 @@ function that returns multiple values will likely have to be a statement that
specifies multiple local variables to which to assign the corresponding return
values.

## Literals
## Constants

Each local type allows literal values directly in the AST. See the
[binary encoding section](BinaryEncoding.md#constant-pool).
These opcodes have an immediate operand of their associated type which is
produced as their result value. All possible values of all types are
supported (including NaN values of all possible bit patterns).

* `i32.const`: produce the value of an i32 immediate
* `i64.const`: produce the value of an i64 immediate
* `f32.const`: produce the value of an f32 immediate
* `f64.const`: produce the value of an f64 immediate

## Expressions with control flow

Expand Down