> ## 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.

# primitives/MemoryDump

> Auto-generated API documentation

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

***

[@tevm/voltaire](../index.mdx) / primitives/MemoryDump

# primitives/MemoryDump

## Type Aliases

### MemoryDumpType

> **MemoryDumpType** = `object`

Defined in: [src/primitives/MemoryDump/MemoryDumpType.ts:15](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/MemoryDumpType.ts#L15)

Memory state snapshot from EVM execution

Represents the complete memory state at a point in EVM execution.
EVM memory is byte-addressable and grows dynamically, organized in 32-byte words.

#### Example

```typescript theme={null}
const dump: MemoryDumpType = {
  data: new Uint8Array([...]), // Full memory contents
  length: 128, // Memory size in bytes
};
```

#### Properties

##### data

> `readonly` **data**: `Uint8Array`

Defined in: [src/primitives/MemoryDump/MemoryDumpType.ts:19](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/MemoryDumpType.ts#L19)

Raw memory bytes - complete memory contents

##### length

> `readonly` **length**: `number`

Defined in: [src/primitives/MemoryDump/MemoryDumpType.ts:24](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/MemoryDumpType.ts#L24)

Total memory size in bytes

## Variables

### MemoryDump

> `const` **MemoryDump**: `object`

Defined in: [src/primitives/MemoryDump/index.ts:30](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/index.ts#L30)

#### Type Declaration

##### from()

> **from**: (`value`) => [`MemoryDumpType`](#memorydumptype) = `_from`

Create MemoryDump from raw bytes or object

###### Parameters

###### value

Memory data or object

`Uint8Array`\<`ArrayBufferLike`> | \{ `data`: `Uint8Array`; `length?`: `number`; }

###### Returns

[`MemoryDumpType`](#memorydumptype)

MemoryDump

###### Example

```typescript theme={null}
const dump1 = MemoryDump.from(new Uint8Array(64));
const dump2 = MemoryDump.from({ data: new Uint8Array(64), length: 64 });
```

##### readWord()

> **readWord**: (`dump`, `offset`) => `Uint8Array`

###### Parameters

###### dump

`Uint8Array`\<`ArrayBufferLike`> | [`MemoryDumpType`](#memorydumptype)

###### offset

`number`

###### Returns

`Uint8Array`

##### slice()

> **slice**: (`dump`, `start`, `end?`) => `Uint8Array`

###### Parameters

###### dump

`Uint8Array`\<`ArrayBufferLike`> | [`MemoryDumpType`](#memorydumptype)

###### start

`number`

###### end?

`number`

###### Returns

`Uint8Array`

## Functions

### \_readWord()

> **\_readWord**(`dump`, `offset`): `Uint8Array`\<`ArrayBufferLike`>

Defined in: [src/primitives/MemoryDump/readWord.js:15](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/readWord.js#L15)

Read a 32-byte word from memory at the given offset

#### Parameters

##### dump

[`MemoryDumpType`](#memorydumptype)

Memory dump

##### offset

`number`

Byte offset to read from

#### Returns

`Uint8Array`\<`ArrayBufferLike`>

32-byte word

#### Throws

If offset is out of bounds or insufficient data

#### Example

```typescript theme={null}
const word = MemoryDump.readWord(dump, 0); // First 32 bytes
const word2 = MemoryDump.readWord(dump, 32); // Second 32 bytes
```

***

### \_slice()

> **\_slice**(`dump`, `start`, `end?`): `Uint8Array`\<`ArrayBufferLike`>

Defined in: [src/primitives/MemoryDump/slice.js:16](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/slice.js#L16)

Extract a slice of memory

#### Parameters

##### dump

[`MemoryDumpType`](#memorydumptype)

Memory dump

##### start

`number`

Start offset (inclusive)

##### end?

`number`

End offset (exclusive, defaults to length)

#### Returns

`Uint8Array`\<`ArrayBufferLike`>

Memory slice

#### Throws

If offsets are invalid

#### Example

```typescript theme={null}
const slice = MemoryDump.slice(dump, 0, 64); // First 64 bytes
const tail = MemoryDump.slice(dump, 64); // From byte 64 to end
```

***

### from()

> **from**(`value`): [`MemoryDumpType`](#memorydumptype)

Defined in: [src/primitives/MemoryDump/from.js:13](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/from.js#L13)

Create MemoryDump from raw bytes or object

#### Parameters

##### value

Memory data or object

`Uint8Array`\<`ArrayBufferLike`> | \{ `data`: `Uint8Array`; `length?`: `number`; }

#### Returns

[`MemoryDumpType`](#memorydumptype)

MemoryDump

#### Example

```typescript theme={null}
const dump1 = MemoryDump.from(new Uint8Array(64));
const dump2 = MemoryDump.from({ data: new Uint8Array(64), length: 64 });
```

***

### readWord()

> **readWord**(`dump`, `offset`): `Uint8Array`

Defined in: [src/primitives/MemoryDump/index.ts:11](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/index.ts#L11)

#### Parameters

##### dump

`Uint8Array`\<`ArrayBufferLike`> | [`MemoryDumpType`](#memorydumptype)

##### offset

`number`

#### Returns

`Uint8Array`

***

### slice()

> **slice**(`dump`, `start`, `end?`): `Uint8Array`

Defined in: [src/primitives/MemoryDump/index.ts:18](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/MemoryDump/index.ts#L18)

#### Parameters

##### dump

`Uint8Array`\<`ArrayBufferLike`> | [`MemoryDumpType`](#memorydumptype)

##### start

`number`

##### end?

`number`

#### Returns

`Uint8Array`