RASM2(1)                    General Commands Manual                   RASM2(1)

NAME
     rasm2 - radare2 assembler and disassembler tool

SYNOPSIS
     rasm2 [-ABdDeEfCLvwrNqx] [-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 loaded asm plugins

     -LL         List loaded anal plugins

     -LLL        List loaded arch plugins

     -o offset   Offset of the opcode to assemble (default is 0)

     -@ offset   Alias for -o

     -N          Dont load any plugin, same as R2_NOPLUGINS=1 or r2 -NN

     -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)

AUTHORS
     pancake <pancake@nopcode.org>

                                March 27, 2023