# Numbers

Wasm has four types of numbers i32, i64, f32, and f64. Each kind has their own operators and can be converted between types.

i32 - 32bit integer\
i64 - 64bit integer\
f32 - 32bit float\
f64 - 64bit float

### Define a Const

```javascript
i32.const 1
i64.const 1
f32.const 1
f64.const 1
```

### Common Arithmetic

|             | i32                    | i64        | f32       | f64       |
| ----------- | ---------------------- | ---------- | --------- | --------- |
| add         | i32.add                | i64.add    | f32.add   | f64.add   |
| sub         | i32.sub                | i64.sub    | f32.sub   | f64.sub   |
| mul         | i32.mul                | i64.mul    | f32.mul   | f64.mul   |
| div         | i32.div\_s //signed    | i64.div\_s | f32.div   | f64.div   |
|             | I32.div\_u  //unsigned | i64.div\_u |           |           |
| modulus     | i32.rem\_s             | i64.rem\_s |           |           |
|             | i32.rem\_u             | i64.rem\_u |           |           |
| abs         |                        |            | f32.abs   | f64.abs   |
| neg         |                        |            | f32.neg   | f64.neg   |
| ceiling     |                        |            | f32.ceil  | f64.ceil  |
| floor       |                        |            | f32.floor | f64.floor |
| square root |                        |            | f32.sqrt  | f64.sqrt  |
| min         |                        |            | f32.min   | f64.min   |
| max         |                        |            | f64.max   | f64.max   |

### Common Logic

|                       | i32                  | i64       | f32    | f64    |
| --------------------- | -------------------- | --------- | ------ | ------ |
| equals one            | i32.eqz              | i64.eqz   |        |        |
| equals                | i32.eq               | i64.eq    | f32.eq | f64.eq |
| not equal             | i32.ne               | i64.ne    | f32.ne | f64.ne |
| less than             | i32.lt\_s //signed   | i64.lt\_s | f32.lt | f64.lt |
|                       | i32.lt\_u //unsigned | i64.lt\_u |        |        |
| greater than          | i32.gt\_s            | i64.gt\_s | f32.gt | f64.gt |
|                       | i32.gt\_u            | i64.gt\_u |        |        |
| less then or equal    | i32.le\_s            | i64.le\_s | f32.le | f64.le |
|                       | i32.le\_u            | i64.le\_u |        |        |
| greater than or equal | i32.ge\_s            | i64.ge\_s | f32.ge | f64.ge |
|                       | i32.ge\_u            | i64.ge\_u |        |        |
| and                   | i32.and              | i64.and   |        |        |
| or                    | i32.or               | i64.or    |        |        |
| xor                   | i32.xor              | i64.xor   |        |        |

### Conversions

| x to y | i32                 | i64                 | f32               | f64               |
| ------ | ------------------- | ------------------- | ----------------- | ----------------- |
| i32    |                     | i32.wrap\_i64       | i32.trunc\_f32\_s | i32.trunc\_f64\_s |
| i64    | i64.extend\_i32\_s  |                     | i64.trunc\_f32\_u | i64.trunc\_f64\_s |
| f32    | f32.convert\_i32    | f32.convert\_i64\_s |                   | f32.demote\_f64   |
| f64    | f64.convert\_i32\_s | f64.convert\_i64\_s | f64.promote\_f32  |                   |


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