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Assembly Language Emulators
Arm Assembly Language Emulator
Assembly Language Emulator Mac
Assembly Language Emulator 8086

Assembly language(asm) is a low-level programming language, where the language instructions will be more similar to machine code instructions.

The Emulator is a C Windows Form application comprising a number of linked forms which in turn utilise external functions. These latter functions are a mix of C, unmanaged C employing inline assembler, and an X86 assembler only module.
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Every assembler may have it's own assembly language designed for a specific computers or an operating system.

Assembly language requires less execution time and memory. It is more helful for direct hardware manipulation, real-time critical applications. It is used in device drivers, low-level embedded systems etc.

Assembly language usually consists of three sections,

A JavaScript assembly x86 compiler + emulator for educational purposes. Processors execute Assembly code, which is a low-level programming language that makes direct use of registers and memory, inside a native executable. Assembly code is stored in its assembled form, as binary data, there are processor manuals that specify how each instruction can be encoded into bytes of data.

Data section
To initialize variables and constants, buffer size these values doesn't change at runtime.
bss section
To declare variables
text section
_start specifies the starting of this section where the actually code is written.

Variables

There are various define directives to allocate space for variables for both initialized and uninitialized data.

1. To allocate storage space to Initialized data

Syntax

Define Directive	Description	Allocated Space
DB	Define Byte	1 byte
DW	Define Word	2 bytes
DD	Define Doubleword	4 bytes
DQ	Define Quadword	8 bytes
DT	Define Ten Bytes	10 bytes

2. To allocate storage space to un-initialized data

Define Directive	Description
RESB	Reserve a Byte
RESW	Reserve a Word
RESD	Reserve a Doubleword
RESQ	Reserve a Quadword
REST	Reserve a Ten Bytes

Constants

Constants can be defined using

1. equ

To define numeric constants

2. %assign

To define numeric constants.

3. %define

To define numeric or string constants.

Assembly Language Emulators

Loops

Arm Assembly Language Emulator

Loops are used to iterate a set of statements for a specific number of times.

where n specifies the no of times loops should iterate.

Assembly Language Emulator Mac

Procedures

Assembly Language Emulator 8086

Procedure is a sub-routine which contains set of statements. Usually procedures are written when multiple calls are required to same set of statements which increases re-usuability and modularity.