> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Log

> Auto-generated API documentation

[**@tevm/voltaire**](../../index.mdx)

***

[@tevm/voltaire](../../index.mdx) / [evm](../index.mdx) / Log

# Log

## Functions

### handler\_0xa0\_LOG0()

> **handler\_0xa0\_LOG0**(`frame`): [`EvmError`](../index.mdx#evmerror) | `null`

Defined in: [src/evm/log/0xa0\_LOG0.js:19](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/evm/log/0xa0_LOG0.js#L19)

LOG0 (0xa0) - Log with 0 topics

Stack:
in: offset, length
out: -

Gas: 375 (base) + 8 \* dataLength + memory expansion

#### Parameters

##### frame

[`BrandedFrame`](../index.mdx#brandedframe)

Frame instance

#### Returns

[`EvmError`](../index.mdx#evmerror) | `null`

Error if any

***

### handler\_0xa1\_LOG1()

> **handler\_0xa1\_LOG1**(`frame`): [`EvmError`](../index.mdx#evmerror) | `null`

Defined in: [src/evm/log/0xa1\_LOG1.js:23](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/evm/log/0xa1_LOG1.js#L23)

LOG1 (0xa1) - Log with 1 topic

Stack:
in: offset, length, topic0
out: -

Gas: 375 (base) + 375 (topic) + 8 \* dataLength + memory expansion

#### Parameters

##### frame

[`BrandedFrame`](../index.mdx#brandedframe)

Frame instance

#### Returns

[`EvmError`](../index.mdx#evmerror) | `null`

Error if any

***

### handler\_0xa2\_LOG2()

> **handler\_0xa2\_LOG2**(`frame`): [`EvmError`](../index.mdx#evmerror) | `null`

Defined in: [src/evm/log/0xa2\_LOG2.js:23](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/evm/log/0xa2_LOG2.js#L23)

LOG2 (0xa2) - Log with 2 topics

Stack:
in: offset, length, topic0, topic1
out: -

Gas: 375 (base) + 750 (2 topics) + 8 \* dataLength + memory expansion

#### Parameters

##### frame

[`BrandedFrame`](../index.mdx#brandedframe)

Frame instance

#### Returns

[`EvmError`](../index.mdx#evmerror) | `null`

Error if any

***

### handler\_0xa3\_LOG3()

> **handler\_0xa3\_LOG3**(`frame`): [`EvmError`](../index.mdx#evmerror) | `null`

Defined in: [src/evm/log/0xa3\_LOG3.js:24](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/evm/log/0xa3_LOG3.js#L24)

LOG3 (0xa3) - Log with 3 topics

Stack:
in: offset, length, topic0, topic1, topic2
out: -

Gas: 375 (base) + 1125 (3 topics) + 8 \* dataLength + memory expansion

#### Parameters

##### frame

[`BrandedFrame`](../index.mdx#brandedframe)

Frame instance

#### Returns

[`EvmError`](../index.mdx#evmerror) | `null`

Error if any

***

### handler\_0xa4\_LOG4()

> **handler\_0xa4\_LOG4**(`frame`): [`EvmError`](../index.mdx#evmerror) | `null`

Defined in: [src/evm/log/0xa4\_LOG4.js:24](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/evm/log/0xa4_LOG4.js#L24)

LOG4 (0xa4) - Log with 4 topics

Stack:
in: offset, length, topic0, topic1, topic2, topic3
out: -

Gas: 375 (base) + 1500 (4 topics) + 8 \* dataLength + memory expansion

#### Parameters

##### frame

[`BrandedFrame`](../index.mdx#brandedframe)

Frame instance

#### Returns

[`EvmError`](../index.mdx#evmerror) | `null`

Error if any