I had some great progress on my Python 65c02 assembler project. I have all opcodes tested and can check if an instruction is valid. For instance, lda 30,y is not a valid instruction, while lda 30,x is valid. Now it’s up to me to test some instructions. 👨‍💻

As seen on Youtube. If a piece of media isn’t enclosed in an RSS feed, don’t call it a podcast, call it an “audio log” instead. Words are important and mean something.

I 🏃 my 9-in-60 2/5 in rain, hail and thunder. Luckily, it wasn’t raining 🐸 or I’d expected the end of days.

Getting closer, inch-by-inch, to processing 65c02 instructions in Python… 👨‍💻

I discovered a superpower, yield in Python 😲 awesome! 👨‍💻

I want to 🏃 more distance in an hour, or IOW, faster. I should be able to do 5 consecutive easy runs of 9 km in an hour before I advance to doing 10 km easy running sessions. Today was 9-km-in less-than-60-minutes (shortened as: 9-in-60) number 1 out of 5.

In other news, Textastic, a great code editor on iOS, stopped working when I updated my iPad to 14.5.1 from pre-14.5. It had worked for 5 years after the last update, and it was great. So I did a paid upgrade of Textastic to the latest version. There’s code hacking ahead! 👨‍💻

🤩 this website made me reconsider how to construct my 65c02 cross assembler. I guess I need to whip up a spec sheet before I start coding in Python. All the work is not for naught, since I learned some regular expressions. 👨‍💻

I’ve heard Mur Lafferty claim on the I Should Be Writing podcast that she often likes the idea of having written, but not writing itself. This morning I wrote a lengthy e-mail to a friend, that could be read in less than 3 minutes. It took me 2 hours to compose and edit. ✍️

I simplified and extended my Python 65c02 assembler. It now checks the source code for valid opcodes and addressing modes. It still doesn’t check if any label value is valid. For labels to work, it has to established their values first (in a first pass of two passes). More to do… 👨‍💻

There’s a lump in my tablecloth. I hope it isn’t the C-word 🐈‍⬛ 😂

My first 🏃 after being vaccinated 💉 with AstraZeneca. I had a head wind in the first half. On my way back home it went like clockwork with the wind in my back. The pouring rain didn’t bother me, since I could empty my head after two stressful days of pain and recovery.

I’m sure there are much easier ways to find the possible addressing modes of the 65c02 cpu. Even so, I spent many hours of code hacking today to get this result, with many failed attempts. Obviously, I’m not good at coding, nor problem solving. Practicing it must be a good thing. 👨‍💻

The AstraZeneca vaccine certainly has side-effects, though mild in most cases. In my case these are pain/stiffness around the injection point, fatigue, and a higher resting heart rate (15 bpm higher than normal). I don’t feel like running. Good then that I stocked up earlier. 💉

I had to shop for some heavy 🐈‍⬛ stuff, and without a car, a Dutch bike is a good alternative 🚲 My arm was still stiff from the 💉 yesterday as well as I felt a bit dizzy, but luckily no headache 🤕 nor a fever 🤒

Okay, I can has implied, immediate, (indirect), (absolute indirect) addressing modes in this Python script I’m working on. It also makes a symbol table for code origin, labels and definitions (equates), used to calculate values and addresses. It’s a thing, 65c02 assembly on iPad. 👨‍💻

And… 💉 I had to wait 15 minutes afterwards to be sure I didn’t get an averse reaction. Next one will be in three months.

Early bird catches the worm, so to speak. Today’s 🏃 was easy enough and I felt good, despite too short a night. I suppose I’m a bit anxious because of the vaccination 💉 shot later today.

Xena Xantippes. Pixel art 🎨 160x144px, 12 colors.

For r/SketchDaily, theme: “Xena xeroxes xenarthra x-rays.”
👾

Instead of futzing around with Python, I decided to create a two-pass assembler, and wrote a version of the first pass, in which the label definitions are dealt with, both explicit and inline. I won’t create a professional grade assembler, just a hobby one. 👨‍💻