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Rainbow
Today, I started working with a new company. At 11:42, I thought I saw part of the top a rainbow. I had some doubts because of the time of the
day. At home I verified with SunCalc.org
that at given time and location the sun was 30.6° above the horizon, which
means that a rainbow can be seen, where the top is at about 11° above the
horizon. This matches my observation.
Silver Wedding day
Today it is 25 years ago that Li-Xia and I got
married. This morning, I published a 'love letter'
in Dutch on social media. The English translation of this letter is:
Dear Li-Xia,
today we are married for 25 years and we celebrate our silver wedding.
For a long time it was uncertain whether you would still be physically
present at this day. Despite the fact that you are no longer able to
conscientiously experience this day, I still want to celebrate it with our
children (in a simple way). You are a very special woman and I am glad
that I got to know you and that we were married 25 years ago. We did
not have an easy marriage. Our characters often clashed (especially in
the early years). Such a clash often ended in a deep sense of how much
we loved each other and that we would never let each other down. In
the past year I realized that we have experienced a form of intimacy that
very few couples experience. Perhaps we would never have achieved that
without all the difficulties we encountered on our path. When I told our
story a few months ago, a woman who came from America, she concluded
that we were 'soul mates' in her eyes. I had never looked at it like that
before, but I think she is right about it. You are and will remain my wife
and the mother of our two children, which I am very proud of. I am still
very proud of you, as I was when we were just dating.
I love you!
In the evening, I took Annabel and Andy to a wok restaurant to have a dinner together to celebrate this. The
following picture was taken there:
Palingdrom date
Today is a palindrome date when
written according to the (D)D-(M)M-(YYY)Y format: 8-10-2018. The
previous such date was October 7, 2017
and the next will be October 9, 2019.
Death of Li-Xia
At 5:30 (in the morning), Li-Xia died in the presence
of some people taking care for her. She died rather quickly and peacefully,
while being held asleep for medical reasons.
Moleskin daily planner
At 17:02:29, I bought a Moleskin daily planner for
2019 from Bookshop Broekhuis for
€ 21.99.
Funeral of Li-Xia
The funeral service for Li-Xia started at 9:30 (in
the morning) at the crematorium in Usselo. We only invited family and friends
(of Li-Xia) who had taken the effort to visit her in the carehome where she
stayed in the past years. Of course, Annabel,
Andy, and my mother
were present. And also our long time friends Bert
and Cornelise. Because, Li-Xia's family could not be present, a recording
was made of the service. We asked a professional photographer to take picture
before, during and after the service.
Because of the extreme warm temperature of the last days (Wednesday 24.1°C,
Thursday 24.2°C, Friday 24°C, Saturday 27.7°C, Sunday 25.8°C,
and today 24.4°C), I decided to get an icecream in the center of the city.
I continued to TETEM art space, where I saw
the exhibition Do It Together
Neighborhood (for the first time) and Bits, bots and brains (again).
From the last exhibition, I liked the works drawn by Maria
Smigielska and Les Colchiques by Pierre Cutellic.
At 17:38, I bought the book Duin messias (the Dutch translation by
M.K. Stuyter SJ of the English Dune Messiah), written by Frank Herbert,
published by Meulenhoff in 1986,
ISBN:9029008857, from thrift store Het Goed for
€ 1.95.
Last summer day
Today, the temperature reached 25.2°C at the weather station Twenthe. It
seems it will be the last summer day (a day on which the temperature reaches 25
degrees Celsius) of this year. So far, we have 75 such days, with 16 days where
the temperature reached 30 degrees. The highest temperature measured this year
at the weather station is 36.2°C. This also is the record temperature since
measurements started in 1951.
Parallel parsing with processes
I got the idea to apply the ideas given in Machine
independent implementation of Cooperative Multi-threading in C to parallel
parsing. Each alternative in a parsing rule can be viewed as a separate
process that stops at characters to be processed. In case a rule contains a
non-terminal, this means that a subprocess needs to be started. There are
actual two ways to implement this, based whether one want to start with the
elementary grammar rules or use the extended grammar rules. In the extended
grammar rules keywords are used to describe optional, sequential and
grouping of grammar symbols, for which one otherwise would have had to
introduce separate non-terminals, often resulting in a large number of
non-terminals and passing of intermediate results. A better approach seems to
have one function per non-terminal (for the extended grammar rules) and clone
the data structure for each variant. I still have to work-out all the details.
Maybe some kind of preprocessor would be handy with respect to all the book
keeping with respect to label names for the goto statements.
PS2 adapter for Gigatron
Today, I received the PS2 adapter for the Gigatron,
also known as Pluggy McPlugface. The
package also include ROMv3 with TinyBasic and some more programs.
Going into the city
I first went to Eye Wish and decided to pick a new pair of glasses for the
'reading' glasses that I had selected some time ago. This means that I will
be carrying around four pairs of glasses. My old glasses, which I mainly use
when I go to see a movie, a pair of sun glasses, my current glasses which have
a +1.25 dioptre correction, and the new pair of glasses, intended to be used
while sitting behind a computer, which have a +1.75 dioptre correction.
Next, I went to bookshop Broekhuis, where at
13:43:17, I bought a Moleskine plain notebook with a black, hard cover, which I
am going to use as my new personal diary, when
my current personal diary is going to be full.
At photo gallery Objektief, I saw the exhibition
Ida - Reines with photographs by Jelle Pieter de Boer.
I went to TkkrLab and soldered the
PS2 connector for the Gigatron computer. I
was not totally satisfied, because after I soldered the PS2 connector, I
discovered that it was not really straight as it should have been.
I went back to Eye Wish to get my new glasses. In the evening, Annabel and I made jiaozi and we watched the AlphaGo movie on Netflix. We both found it very interesting to watch. Although, I did
follow it in detail and new the outcome of the match, I still found it exciting
to watch. The movie does not focus on the details of the game, but on the
people involved and their emotions. It shows a lot of what went on behind the
scenes.
Testing Pluggy McPlugface
This afternoon, I tested the Pluggy McPlugface PS2 interface for the Gigatron computer that I received earlier this week and soldered
together yesterday. I had some problems with the power supply before I got it
to work. Seems that the best approach is to plug in the PS2 keyboard after the
Gigatron had started. I loaded the Basic interpreter from the microcontroller
on the Pluggy McPlugface and played a little with it. Later, I replaced the
Version 1.0 ROM with the Version 3 ROM and played the Tetronis game and got a
highscore of 10175. This new ROM is really an improvement turning the Gigatron
in a little home computer with Tiny BASIC.
This months interesting links
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