RZ_ASM(1)

NAME
rz-asm - rizin assembler and disassembler tool

SYNOPSIS
rz-asm [-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. rz-asm -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 'rz-asm -BF a a.asm'

-r  Show output in rizin 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, ...)

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

-.align

-.arch

-.arm

-.ascii

-.bits

-.data

-.equ

-.fill

-.glob

-.hex

-.int16

-.int32

-.int64

-.kernel

-.offset

-.org

-.os

-.short

-.text

-.thumb

EXAMPLES

Assemble opcode:

$ rz-asm -a x86 -b 32 'mov eax, 33'

Disassemble opcode:

$ rz-asm -d 90

SEE ALSO

rizin(1), rz-find(1), rz-hash(1), rz-bin(1), rz-diff(1), rz-gg(1), rz-run(1), rz-ax(1),

AUTHORS

pancake <pancake@nopcode.org>