# printf

### Function

> printf

### Syntax

> printf( Format, Expressions \[...] );

### Parameters

**\[Format-string]**

A printf-like format string.

**\[Expression] \[...]**

[MASM-like expression(s)](https://docs.hyperdbg.org/commands/scripting-language/assumptions-and-evaluations) to evaluate, you can choose multiple expressions based on the format string.

### Description

Evaluates and prints a printf-like format string with MASM expression(s).

{% hint style="danger" %}
All the format specifiers should be in a lower-case format.
{% endhint %}

### Supported Format Specifiers

| Specifier | Description              |
| --------- | ------------------------ |
| **%d**    | Decimal signed integer   |
| **%i**    | Decimal signed integer   |
| **%u**    | Decimal unsigned integer |
| **%o**    | Octal integer            |
| **%x**    | Hex integer              |
| **%c**    | Character (char)         |
| **%p**    | Pointer (void \*)        |
| **%s**    | String                   |
| **%ws**   | Wide-String              |
| **%ls**   | Wide-String              |

### Integer Format Specifiers (Long)

| Specifier | Description                   |
| --------- | ----------------------------- |
| **%ld**   | Long decimal signed integer   |
| **%li**   | Long decimal signed integer   |
| **%lu**   | Long decimal unsigned integer |
| **%lo**   | Long octal integer            |
| **%lx**   | Long hex integer              |

### Integer Format Specifiers (Long Long)

| Specifier | Description                                 |
| --------- | ------------------------------------------- |
| **%lld**  | Long long (64-bit) decimal signed integer   |
| **%lli**  | Long long (64-bit) decimal signed integer   |
| **%llu**  | Long long (64-bit) decimal unsigned integer |
| **%llo**  | Long long (64-bit) octal integer            |
| **%llx**  | Long long (64-bit) hex integer              |

### Integer Format Specifiers (Short)

| Specifier | Description                    |
| --------- | ------------------------------ |
| **%hd**   | Short decimal signed integer   |
| **%hi**   | Short decimal signed integer   |
| **%hu**   | Short decimal unsigned integer |
| **%ho**   | Short octal integer            |
| **%hx**   | Short hex integer              |

### Examples

`printf("Result is %s", @rcx);`

Print data as an ASCII string pointed by **rcx** register.

`print("The value is %llx and the string is : %ws "dq(@rcx), poi(rax));`

Print and evaluate the above expressions. Note that **%ws** is a wide-string pointed by **rax** register. Also, the value of **rcx** register is also dereferenced and showed in quad-hex format.

{% hint style="success" %}
You can see more examples [here](https://docs.hyperdbg.org/commands/scripting-language/examples/view-system-state).
{% endhint %}

### Remarks

You should consider avoiding ["unsafe" behavior](https://docs.hyperdbg.org/tips-and-tricks/considerations/the-unsafe-behavior) in your expressions and strings.

### Related

[print](https://docs.hyperdbg.org/commands/scripting-language/functions/exports/print)


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