OnWorks favicon

asx8051 - Online in the Cloud

Run asx8051 in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command asx8051 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



ASxxxx - Series of microprocessor cross assemblers for SDCC.


sdas8051 [options] file1 [file2 file3 ... file6]
sdasgb [options] file1 [file2 file3 ... file6]
sdasz80 [options] file1 [file2 file3 ... file6]
sdas6808 [options] file1 [file2 file3 ... file6]
sdas390 [options] file1 [file2 file3 ... file6]
sdasrab [options] file1 [file2 file3 ... file6]
sdasstm8 [options] file1 [file2 file3 ... file6]
sdastlcs90 [options] file1 [file2 file3 ... file6]


The information in this man page is an extract from the full documentation of SDCC, and is
limited to the meaning of the options.

For complete and current documentation, refer to the ASxxxx Cross Assembler Documentation,
available in /usr/share/doc/sdcc-doc/aslink.


The ASxxxx assemblers are a series of microprocessor assemblers. Each assembler has a
device specific section.

MCS51 family is supported by sdas8051.
Z80family is supported by sdasz80.
GBZ80 (GameBoy Z80-like CPU) is supported by sdasgb.
Motorola 6808 family is supported by sdas6808.


The ASxxxx assemblers are command line oriented. The PC assemblers are started with the
appropriate option(s) and file(s) to assemble following the assembler name.

-d decimal listing.

-q octal listing.

-x hex listing (default)

The listing radix affects the .lst, .rel, and .sym files.

-j add line number and debug information to file.

-g undefined symbols made global.

-a all user symbols made global.

-l create list output file1.lst.

-o create object output file1.rel.

-s create symbol output file1.sym.

-c generate sdcdb debug information

-p disable listing pagination.

-w wide listing format for symbol table.

-z enable case sensitivity for symbols.

-f flag relocatable references by ` in the listing file.

-ff flag relocatable reference by mode in the listing file.

-I add the named directory to the include file search path. This option may be used
more than once. Directories are searched in the order given.

The file name for the .lst, .rel, and .sym files is the first file name specified in the
command line. All output files are ascii text files which may be edited, copied, etc. The
output files are the concatenation of all the input files, if files are to be assembled
independently invoke the assembler for each file.

The .rel file contains a radix directive so that the linker will use the proper conversion
for this file. Linked files may have different radices.

If the list (l) option is specified without the symbol table (s) option, the symbol table
is placed at the end of the listing file.

Use asx8051 online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Strikr Free Software project. Artifacts
    released under a 'intent based'
    dual license: AGPLv3 (community) and
    CC-BY-NC-ND 4.0 international
    Download strikr
  • 3
    giflib is a library for reading and
    writing gif images. It is API and ABI
    compatible with libungif which was in
    wide use while the LZW compression
    algorithm was...
    Download GIFLIB
  • 4
    Alt-F provides a free and open source
    alternative firmware for the DLINK
    DNS-320/320L/321/323/325/327L and
    DNR-322L. Alt-F has Samba and NFS;
    supports ext2/3/4...
    Download Alt-F
  • 5
    Usm is a unified slackware package
    manager that handles automatic
    dependency resolution. It unifies
    various package repositories including
    slackware, slacky, p...
    Download usm
  • 6
    Chart.js is a Javascript library that
    allows designers and developers to draw
    all kinds of charts using the HTML5
    canvas element. Chart js offers a great
    array ...
    Download Chart.js
  • More »

Linux commands