NAME¶

rasm2 — radare2 assembler and disassembler tool

SYNOPSIS¶

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)

-q

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

different than filename¶

-.intel_syntax

Use intel syntax rather than att:w

-.att_syntax

Use ATT syntax rather than flu :w dentify the region fof aslerrger

-string

dentify the region fof aslerrger

-.ascii

 

-.align

 

-.arm

 

-.thumb

 

-.arch

 

-.bits

 

-.fill

 

-.kernel

 

-.os

 

-.hex

 

-.int16

 

-.short

 

-.int32

 

-.int64

 

-.glob

 

-.equ

 

-.org

 

-.text

 

-.data

 

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>