|BBC display extensions|
|Chameleon 12-bit palette extension||chameleon/gif
|Mike Cook Chamelion colour board, Micro User Feb 1990.|
|Palettemate 12-bit palette extension||link to StarDot||Being developed by RobC on StarDot.|
|Border colour module||Border||A small module that plugs into the Video ULA socket and provides a programmable border colour at location &FE22. b0-b2 are written with the 3-bit RGB colour, written as %00000bgr.|
|VDU19 extension||vdu19.src||vdu19.txt|| |
|Source code to extend VDU 19 to program the Chamelion or Palettemate to select 12-bit RGB colours, and to select border colours.|
|Non-complementary flashing colours||flash
|Short program to demonstrate flashing colours between any two colours
(eg blue/green, black/red, etc), not just between complementary colours
(eg blue/yellow, black/white, etc.).
Source code to create VDU 19 extension to implement VDU 19,l,32+n,0,0,0 and VDU 19,l,48+n,0,0,0 to set flash colours independently.
|Millipede Prisma||Advanced video extension system.|
|Extended BBC screen MODEs||NewModes||Extended screen MODEs for BBC/Master. MODEs 8-14 with twice the colour depth of MODEs 0-6.|