== Last news about this project ==
In August 2025, I refactor the OSD menu, adding also an 3rd palette : orange.
In MaY 2020, I add Sorgelig formula for WAIT_n=quick, no more table of instruction time in code, just a simple WAIT_n formula.
TODO : alternative color, but cool ones : yellow (green) blue orange pink.
===== VIDEO: Orange option =====
It is not a Monochrome, it's just another palette.
Before :
XX00 red
XX00 green
XX00 blue
After :
XX00 red
0XX0 green
00XX blue
[[File:FPGAmstrad orange.png|thumbnail|Orange screen]]
===== VIDEO: C64 option =====
Mapping of C64 palette on CPC (VIC 2)
C64 is using YUV.
As first step, I convert RBG into YUV, then I inverse U and V, and then convert back to RGB.
As it, I extend C64 16 colors palette into 32.
I call it first step, because I thing we can add cos/sin in equation.
[[File:FPGAmstrad_C64_VIC_2_palette.png|thumbnail|C64 palette doc]]
[[File:FPGAmstrad lair C64 palette.JPG|thumbnail|Wizards Lair C64 palette]]
Known C64 conversion better with this C64 palette option :
* Wizard's Lair
* R-Type
===== VIDEO: Monochrome OSD =====