Nina KalininaJan 29

Casio BN-20 ROM dump is in progress. 52 jumper wires is a mess. We seem to have a couple of address bits flipped, because the data looks ALMOST right but not quite, with every 16 bytes out of order.

Our programmer/flasher tool only has 40 pins, so we're dumping upper/lower byte separately.

Show threadNina KalininaJan 29
I guess we'll continue tomorrow, because it's a bad idea to do precise operations when tired, with a risk of destroying the only copy of the chips
Show threadNina KalininaJan 30
And we've struck gold with the ROM. 2 megabyte of ROM, what did Casio put in there? Well, loads of screenshots and a bunch of UI stored as bitmaps, of course.... thread
Show threadNina KalininaJan 30
more bitmaps from teh ROM!
Show threadNina KalininaJan 30
and more, it just doesn't end. You'd expect there's a UI builder, but when you have 2 MB of ROM on an x86 device, you might as well just pre-render everything
Show threadNina KalininaJan 30
the ROM is seemingly endless, why so many images are stored in it, are you a real OS or just a combination of mocks with transitions between the images
Show threadNina KalininaJan 30
WINDOWS as an icon for Windows. Genius (not)
Show threadNina KalininaJan 30
You know Casio mean business when you see a photo of a fax machine on your organiser. I wonder if the image was a 3D render and not a real photo? It looks a bit too perfect
Show threadNina KalininaJan 30
The placeholder/test data is full of names of pop stars. Like Ray Stevenson or U2
Show threadNina Kalinina
Continued at https://tech.lgbt/@nina_kali_nina/115985762348700453
Jan 30 at 7:59pmWeb