# eb\_pa, ed\_pa, eq\_pa

#### Function

> eb\_pa

> ed\_pa

> eq\_pa

### Syntax

> eb\_pa( PhysicalAddress, Value );

> ed\_pa( PhysicalAddress, Value );

> eq\_pa( PhysicalAddress, Value );

### Parameters

**\[Expression (PhysicalAddress)]**

The physical address of the target memory that needs to be modified.

**\[Expression (Value)]**

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

### Description

`eb_pa` modifies a single `byte`.

`ed_pa` modifies a `dwrod`.

`eq_pa` 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 `1d44fde0` and change it to `0x12345678deadbeef`.

`IsEditApplied = eq_pa(1d44fde0, 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_pa(poi(@rcx)+8, 0x90);`

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

`eq_pa(1d44fde0, 0x12345678deadbeef);`

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

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

### Remarks

The support for these functions is added from **v0.13**.

### Related

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


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.hyperdbg.org/commands/scripting-language/functions/memory/eb_pa-ed_pa-eq_pa.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.