I’ve just been sent on a business trip to Japan to walk along the Kumano Kodo pilgrimage path! Well, okay, they thought they were sending me to a conference on calendaring interoperability standards, but that wasn’t really the important bit.
So a week or so ago I wrote a toy Mandelbrot generator for the BBC Micro, capable of using 2.6-bit fixed point arithmetic to draw a pretty terrible vaguely-Mandelbroid image in twelve seconds. That program is now obsolete: the very poorly named Bogomandel is capable of drawing pretty good actual Mandelbrot and Julia images, at higher precision, faster. Here it is.
I’ve just got back from a walking holiday in Crete; it’s beautiful, with rocky, craggy mountains, fragrant green forests, blue seas and amazing food.
So… it’s a complete stunt. The algorithm will only render the above picture, it can’t pan or zoom, it can’t show conventional colour contours, there are bounding problems, etc, etc. But it’s pretty fun.
I made a video of some old games running on my new laptop. It may be a 1986 IBM PC Convertible 5140, with 640kB of RAM, an 8088 processor and two floppy drives, but it great for gaming on! For certain values of ‘great’.
I’ve just released version 0.5 of Cowgol, my new Ada-inspired programming language. It’s not just for the 6502 on the 6502, it’s for the Z80 on the Z80 as well! And, if you’re masochistic, for the 6502 on the Z80 and for the Z80 on the 6502 too (I build all the cross compilers).
After getting the 6502 code generator for my Cowgol compiler working pretty well, I've been working on a code generator for the Z80, targeting CP/M. Oh, boy. I thought the 6502 was hard to generate code for...