A MACRO-11 assembler for the PDP-11 in portable C source code.
Copyright (c) 2001, Richard Krehbiel
All rights reserved.
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
modified 2009 by Joerg Hoppe,
modified 2015-2017,2020,2021 by Olaf 'Rhialto' Seibert.
Files:
macro11.c Command line parsing and driving the passes.
assemble.c Handles all of the opcodes and directives.
assemble_aux.c Helper functions mostly called from assemble().
assemble_globals.c Global variables for assemble().
extree.c Expression tree: memory management and evaluation.
listing.c Listing generation.
macros.c Define macros and make them available as stream2s.
parse.c Basic parsing for numbers, labels, strings, expressions
rept_irpc.c stream2 subclass for processing .REPT and .IREPT.
object.c Functions for writing RSX-11 compatible .OBJ files.
mlb-rsx.c Classes (!) for reading RSX-11 macro libraries.
mlb-rt11.c Classes (!) for reading RT-11 macro libraries.
mlb2.c Glue functions for macro libraries in general.
stream2.c Functions for managing input streams and buffers.
rad50.c Functions for converting text to and from RAD50.
util.c A few general utility fuctions.
macro11.h, object.h, mlb.h, stream2.h, rad50.h, util.h
types and symbols exported from the associated sources.
dumpobj.c A program I wrote to examine the output from
RT-11's MACRO.SAV program and compare it with my
own output.
Makefile A GNU makefile for Linux; simple enough, it
should be convertible to any Unix.
Contains automatic dependency generation.
macro11.dsp, dumpobj.dsp, macro11.dsw
Visual Studio 6 projects. Out of date.
README This file
LICENSE The copyright notice and license
CHANGES A list of changes from previous versions
TODO A list of things that may need fixing
Notes:
Sorry, I am a believer in 4 column hardware tabs, for a number of
reasons, mostly regarding editing convenience. (I did untabify this
README file though.)
The bulk of Richard's development was done in Microsoft Visual Studio 6,
but currently Olaf maintains it using a Unix (NetBSD) system. I build
with gcc and a lot of warning options, and from time to time check with
a Linux system which has a different gcc version, and clang. The Visual
Studio project files are out of date.
Richard used the MACRO11 from RT-11 as reference, but I use the one
from RSX-11M+. It turns out there are some small file format
differences. I used the dumpobj command to compare the output of this
macro11 with the reference version when assembling Kermit-11 source
files, and currently there seem to be no significant differences.
The macro11 command line:
macro11 [options...] files...
Options:
-v Prints program version.
-e opt .ENABL option. Implemented options are AMA, GBL,
and also .LIST options ME, BEX, and
MD, though the status of listing control is
presently very poor.
-d opt .DSABL option; same options as -e.
-m macname Gives a macro library name.
Up to 32 macro libraries may be specified, one per
-m option.
Note: unlike MACRO.SAV, SYSMAC.SML is not
automatically included; you must name it.
-p macpath For any .MCALL <macro> directive, macro11 will
first search -m macro libraries, then it will
search the MCALL path for a file named <macro>.MAC
to locate the body of the macro. The MCALL path
is an environment variable containing directory
names separated by delimiters (":" for Unix-style
targets; ";" for Windows). The -p command line
options appends a directory name to the MCALL
path.
-I incpath For any .INCLUDE <file> directive, macro11 will
search the INCLUDE path for a file named <file>
to include. The INCLUDE path works like the MCALL
path. If not specified at all, the default is the
current directory. If <file> contains a drive
and/or directory in RSX/RT-11 form
(DEV:[DIR]FILE.EXT) then the search is also tried
without DEV: and without DEV:[DIR].
-o objname Gives the name of the object file. No extension
is assumed; if you want .OBJ you have to say it.
With no -o option, no object file is generated.
-l lstname Gives the name of a listing file. The name "-"
may be given to write the listing to stdout. No
extension is assumed; if you want .LST you have to
say it. With no -l option, no listing file is
written.
-x Tells macro11 not to assemble anything, but rather
to simply extract all the macros in all the -m
macro libraries into individual .MAC files in the
current directory. This should be the last option
given, as none following will be processed.
This also works for extracting an object library
(.OLB) file.
-rsx Tells macro11 to generate rsx style object files.
This is the default.
-rt11 Tells macro11 to generate rt11 style object files.
Various options starting with -y enable extensions:
-ysl <num> Allow longer symbols up to the given length.
The maximal allowed value is 64.
-yus Allow underscore in symbol names.
-yl1 Include the processing of the first pass in the
listing file. This may be useful for finding
phase errors.
files... Any number of input files. They will be assembled
as if they were concatenated together.
You may define the MCALL and INCLUDE environment variable prior to
invoking macro11, as a path to directories containing macros or files to
be included, respectively.
=======================================================================
Included in subdirectory obj2bin is a Perl script from Don North,
copied from https://github.com/AK6DN/obj2bin. The copied version may
get out of date; when in doubt check the original.
=======================================================================