Lloyd's Home Page
Most computer programmer's home pages are just a CV and some photos
of their cats. Well, I have finally managed to scan in some photos of my cats . Maybe sometime I will put up
a copy of my CV.
All I have up here at the moment is some software that I have written
recently. Not all of this software is as tidy as it might be, but I am still
working on most of it. Items without links are not on the web just yet.
I have also written some software that builds under NetBSD/i386, but runs under
DOS. This software usually uses the PC as some sort of lab instrument, As you
can see, I only have one such program available for download at the moment.
- Converts ESRI shapefiles to ASCII/binary XYZ files. Useful for some mapping
- digitise - Drives various digitiser tablets and produces ASCII/binary XYZ
files. You must have GMT and be a C programmer to compile this. It is
unfinished, but it works well enough for some uses. Bug reports are
welcome. Send them to lloyd at must-have-coffee.gen.nz.
- dem2grd - Converts old style USGS DEM files to GMT grid files.
- xgrid 2.1 - A Motif/Xbae program
to display and edit GMT grid data.
- xgrid 2.2 - Updated to use libtool.
- xgrid 2.2.1 - And then fixed.
- A Unix program to generate mailing labels. I gave up trying to get recent
versions of Word to do the job.
- My update of someone else's program for calculating mortgage payment
information. I don't know who the original author is.
- mopscript - This program takes ASCII scripts and converts them into files
suitable for downloading via MOP. This program was written to help a nice man
at Compaq who was in a bit of a bind.
- planet1 - My hack of Torben Mogensen's planet generating program. It
writes out GMT grid files (no, not ASCII/binary XYZ files), and I have
improved the accuracy of the arithmetic somewhat. Or not.
- planet2 - A program stolen from the net that creates planets based on
techtonic theories. I have temporarily misplaced this program. Whoops.
- atapi - displays the results of an ATA IDENTIFY command sent to the
master device on the secondary IDE controller on a PC followed by the results of
an ATAPI IDENTIFY command sent to the same device.
I have also been working on some device drivers. I have a habit of
buying cheap peripherals designed for Windows, and then I write NetBSD
drivers for them. Here is a list of hardware that I am working with at
the moment, and what systems I am writing the driver for (if I have
started at all of course). The items are listed in their
- New Media LiveWire - NetBSD
- an AMD 79C940 (MACE) base PCMCIA ethernet card. This driver is
ready for (it only has one known bug).
- Epson Color(sic) Stylus 300 - GhostScript - This is an ESC/P2 printer
that requires the rasters to be constructed to match the special (el-cheapo)
print head used. I have written this driver three times now. This time I will
put the code in CVS and make backups.
- HP5300C - NetBSD - a scanner that
speaks raw SCSI over USB. Lennart Augustsson (I even spelled that right
without looking) has written a driver that provides SCSI over USB and I am in
the process of testing it. This isn't 100% yet, but I can get pretty pictures
- GSmart 350 - userland - this is a camera that takes photos suitable for
the web. When I have the driver written I will start uploading photos to this
somewhat bare web page.
- Seagate 20GB Travan - NetBSD - an
ATAPI tape drive with enough capacity to be useful to me. NetBSD doesn't
support ATAPI tape drives, so I have started writing the code
myself. I have collected a whole pile of docs.
Luckily the NetBSD scsipi layer does all the hard work for me.
- Initio 940 - NetBSD - a cheap SCSI
card. Someone else has contributed a driver to NetBSD. It all just works.
- Acecat III - GMT contrib
- a nasty little digitiser that is good for almost nothing. Acecad are also a
nasty little company that won't release programming information for their
tablets. (Compare this with other companies that publish this information on
the web for all to use). I knew this before I bought the digitiser so I didn't
spend much money on it.
- Densei barcode reader - userland - It seems that this is
non-programmable . I am going to have to write some software
to look up book barcodes because I am getting tired of typing
author and title information into my library catalogue.
- Gameboy - fun - I have just bought a second hand Gameboy for $US15. Since
one of my other projects is to build an EPROM burner, I think I am going to
have fun with this.
- Promise IDE Controller - NetBSD - I have a Promise Ultra66
IDE controller in my Ultra 10. This is not a normal configuration,
and I had to do some work to get it to go. This configuration is
completely incompatible with Solaris.
I am also designing an EPROM programmer. It will be based on a design
from the net, but more full featured. This is mostly because I want
the device to work with NetBSD, so things like burn timing should not
be done on the host. I will post more details when I have them.
I am also a fan of the Z80 chipset. I have collected three hard to
find PDF documents describing how to program the Z80 CTC. Sometime I
will get around to feeding the PDF files through an OCR system. The
PDF files are here.
Last modified: Fri Jun 15 21:12:34 NZST 2001