rasm2 - Man Page

radare2 assembler and disassembler tool

Synopsis

rasm2[-ABdDeEfCLvwrqx] [-a arch] [-b bits] [-c cpu] [-F in:out] [-o offset] [-@ offset] [-O ofile] [-s syntax] [-i int] [-l int] [ARG]

Description

This tool uses r_asm to assemble and disassemble files or hexpair strings. It supports a large list of architectures which can be listed using the -L flag.

-a arch

Set architecture plugin

-A

Show analysis information of given hexpair string

-b bits

Set architecture bits

-B

Binary input/output (-l is mandatory for binary input)

-c cpu

Select specific CPU (depends on -a arch)

-C

Output in C format

-d

Disassemble hexpair bytes. rasm2 -d 9090

-D

Disassemble showing hexpair and opcode

-e

Use big endian (or swap endianness if used more than once)

-E

Output disassembled instructions in ESIL format.

-f

Read data from file instead of ARG.

-F in:out

Specify input and/or output filters (att2intel, x86.pseudo, ...)

-h

Show usage help message.

-hh

Show long help message including supported assembler directives

-l int

Input/Output length

-i int

Ignore/skip N bytes from the beginning of the input buffer

-L

List supported asm plugins

-o offset

Offset of the opcode to assemble (default is 0)

-@ offset

Alias for -o

-O ofile

output to file, for example 'rasm2 -BF a a.asm'

-r

Show output in r2 script

-s syntax

Select syntax output (intel, att)

-w

Describe opcode (whats op)

-x

Use hex dwords instead of hexpairs in the assembler output

-q

Quiet output (handy for -L, -v, ...)

Directives

List the supported assembler and preprocessor directives with:

$rasm2 -hh

Examples

Assemble opcode:

$ rasm2 -a x86 -b 32 'mov eax, 33'

Disassemble opcode:

$ rasm2 -d 90

See Also

radare2(1), rafind2(1), rahash2(1), rabin2(1), radiff2(1), ragg2(1), rarun2(1), rax2(1),

Authors

pancake <pancake@nopcode.org>

Referenced By

rabin2(1), radare2(1), radiff2(1), rafind2(1), ragg2(1), rahash2(1), rarun2(1), rax2(1).

October 30, 2018