understanding the COLORXX regs...

[Joe Maroni]

i tried to rip some original colors from several games with the help of the AR MKIII...

after typing "info" in the console i´ve got the values of the COLORXX registers...

i also understand that the first nibble is unused and the other following 3 nibbles tell me the RGB values...

but the reason is that one nibble can handle a maximum value of decimal 16...or hex f....

but most paint programs have slidebars that goes up to decimal 256...

maybe its a little bit confused, but can anyone tell how to solve this problem...???

if its written understandable enough...

[Codetapper]

Action Replay handles 4 bit OCS/ECS colour values, from $000 to $fff. With AGA machines, you can use the full 8 bits for each RGB channel, thus $000000 to $ffffff.

If you are trying to recreate the palette on an AGA machine, you have to multiply each value by $11 (decimal 17) to get the corresponding colour. Thus 0 black becomes 0, 4 becomes $44 (decimal 68), 8 becomes $88 (decimal 136), $c becomes $cc (decimal 204) and $f becomes $ff (decimal 255).

I think quite a few programs just multiply by $10 but this means you miss out on the brightest shades of colours. ie. $f would become $f0. There is no perfect answer here but either multiply by $10 or $11 and you'll be OK.

[Joe Maroni]

thanks...really helpful... :great