ColecoVision SlideShow Sample in 5 formats: SLIDESHOW SAMPLE.ZIP 131.8KB 58 downloads
My name is NewColeco and I'm gonna tell you what I've been worked on during the last 3 years.
Not everyone is aware that graphics are very difficult to add in our beloved homebrew games, especially within the standard 32K cartridge size. To make things worse, some graphics cannot be compressed at all to keep the action fluid and fast.
In order to add great looking bitmap screens and tilesets into our projects, we use data compression.
I've been working very hard on lossless data compression for our graphics data. My new compressed formats are named DAN1, DAN2, and DAN3; they work especially well for big graphics like charset and bitmap screens. They are, technically speaking, LZ77 variants and developed based on our graphics need.
The ZIP file in the download section contains 5 files of the exact same slideshow sample, the only difference is the data compression format used in each one of them.
Information about the Slideshow ROM files:
- in Pletter - ROM size 27730 bytes.
- in ZX7 - ROM size 27665 bytes.
- in DAN1 - ROM size 27094 bytes.
- in DAN1 without RLE support - ROM size 27078 bytes.
- in DAN3 - ROM size 26999 bytes.
For this slideshow sample, saving about 700 bytes is a big deal; should be enough to add an extra picture without going over 32K.
Now you know what I've been working on lately.
Thanks for reading!