archive.worldofdragon.org

Hi,
to help users read and see the images a bit better than the small copies uploaded here,
here is a document in formats .DOC (in three rar files) and .PDF in zip format
The quality of images are much better in the doc at the price of ten times the file size.

cheers
pere

E X A M P L E S OF U S E ------------------------------------ Here are two images, a ‘pony’ and a ‘testcard’, that will allow the user to modify the colour settings on the TV set so that the 10 colours are clearly visible. Both XRoar screenshots and photos of real hardware are shown. The images were...

S•Y•N•C•H•R•O•N•I•C•I•T•Y When we want a change of palette (CSS) at a certain byte on one line, we must count CPU cycles so that the opcode that modifies the palette hits on the exact cycle that corresponds to the desired screen byte. We need to know some figures before we put our hands on the calcu...

Now, despite the fact we can see the 24 solid colours we are able to obtain, we want to get rid of the combinations that don’t blend into a new colour, so that we only have the good ones. Here are the XRoar screenshot and a photo of the real D64, a very poor photo due to the moiré effect added by th...

The next challenge was to show these four palette combinations on just one screen. The result is shown in this XRoar screenshot and D64 photo 07A-Pmode3-4Quadrants-XRoar-small.jpg 07B-Pmode3-4Quadrants-Photo-small.jpg Upper left quadrant has combinations of colours of palette 0 Upper right quadrant ...

Next step was to apply this technique to PMODE3 to verify the results. The next two images show XRoar screens and a real Dragon using palette 0. You can see the two new combinations on the photo (red-blue combos at the lower right of the screen). 04A-PMode3-CSS0-XRoar-small.jpg 04B-PMode3-CSS0-Photo...

The answer is PAL behaviour. NTSC creates artifacted colours ‘horizontally’ when a black pixel is next to a white one, creating a light blue or light red if we reverse black and white positions. Instead, PAL creates ‘artifacts’ vertically due to a correction scheme that is automatically applied. Tec...

AFTER THE COLOURS RUSH This work is a collaboration between Simon Jonassen and Pere Serrat (me). This began in the moment I first contacted Simon to ask some questions related to his ‘half-char’ shift demo. This genius is also known as the mad guy from the c64 scene that likes to stretch the limits ...

Hi, another great project with Tormod's signature, it is impressive! This seems to open up a new world of possibilities for our Dragons even the small Dragon32 can be revamped with that expansion and FUZIX. I will keep an eye on this thread to see how the project advances. @Tormod please, put me dow...

Hi Marcelo, pleased to know. If you have a CoCo and have used it with the CoCo-SDC you will have to download the document with the command names for the Dragon. I changed them by addidng a leading 'S' for (DIR and DRIVE that became SDIR and SDRIVE) But besides the name, there are some syntax differe...