> For the complete documentation index, see [llms.txt](https://docs.hyperdbg.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hyperdbg.org/commands/scripting-language/functions/memory/eb-ed-eq.md).

# eb, ed, eq

#### Function

> eb

> ed

> eq

### Syntax

> eb( Address, Value );

> ed( Address, Value );

> eq( Address, Value );

### Parameters

**\[Expression (Address)]**

Address of the target memory that needs to be modified.

**\[Expression (Value)]**

The value that needs to be replaced on the target address.

### Description

`eb` modifies a single `byte`.

`ed` modifies a `dword`.

`eq` modifies a `qword` value.

### Return value

If the address is valid, then the above functions return `1`. Otherwise, `0` is returned.

### Examples

The following code edits memory (**quad-word**) at `fffff8031d44fde0` and change it to `0x12345678deadbeef`.

`IsEditApplied = eq(fffff8031d44fde0, 0x12345678deadbeef);`

The following code changes a **byte** to 0x90 at the location that the **rcx** register is pointing to, then adds **0x8** to it.

`IsEditApplied = eb(poi(@rcx)+8, 0x90);`

You can also use these functions without checking for the return value.

`eq(fffff8031d44fde0, 0x12345678deadbeef);`

It's possible to use these functions with an **if** statement.

```c
if (eq(@r11, 0x12345678deadbeef) == 1) 
{ 
	printf("changes are applied.\n");
}
else 
{
	printf("changes are NOT applied.\n");
}
```

### Remarks

None

### Related

[eb\_pa, ed\_pa, eq\_pa](https://docs.hyperdbg.org/commands/scripting-language/functions/memory/eb_pa-ed_pa-eq_pa)