Are you saying that in this mode you can only use colours 0-7 and actually need to set a register for the display to show 8-16 colours?
If so does this mean it is really a 8 colour mode and you can switch between colour 0-7 & 8-15?

No, it is really 16 colour mode, you can use any colors from 0 to 15 at anywhere on the screen.
The limitations on the color selections.
For color 0,1,2,3,4,5,6,7 you can select any colors from the 256.
The color 8-15 can selected in one color block by the FIXBIAS, I writed the method previously.

This color selections is also true for Attribute mode. This is the next bug currently you use the Spectrum method for EP Attribute mode.
It is can be simulated, but you can use other colors than the Spectrum.
(For Spectrum simulation: set the BIAS to 31, this is select 248-255 color codes for col8-15. You can use these as Spectrum Bright colors. And needed to select normal Spectrum colors for col0-7. This is the common method when converting Spectrum games to Enterprise. One problem with the color order, the Spectrum use different than the Enterprise)

The editors job is to show what your image would look like - it doesn't need to use the same techniques used to program the actual machine.

Ok, but more usable, if use similiar color selections. Currently if I want to change colors in the col8-15 area, then needed 8 manual color selection operations. I want: the program works more instead the user
My idea: the col8-15 can't be selected from the color palette, and additional FIXBIAS icon, it is can be selected from the 256 colors palette. Fixbias-(Fixbias MOD 8 )=col8, col9=col8+1, col 10=col8+2, etc
For example: Fixbias=45 then col8-15=40,41,42,43,44,45,46,47
This is the same method used by operating system on the Enterprise.
Please, please, please implement this.

If you want I can make the color configurable and provide a reset button to return the colours to default spectrum colours.

Yes I want this, it is good idea!

Its not entirely the same as the spectrum however, as the spectrum has a flash bit and the enterprise doesn't - its has 2 bright bits - 1 for foregrounf and 1 for background.

Yes, the Enterprise not have these special bits. On EP very simple the attribute mode, you have 16 colors, the color selections same with the 16 colors mode (8 colors can be specified by the palette, 8 by the FIXBIAS). At each attribute you can select any of the 16 colors for foreground and other for background.
I you select right colors, then you can simulate the Spectrum Bright bit. It is easy: specify normal colors for col0-7, and bright colors for col8-15. Then the bit3 of the color code will be a "bright bit".
The flash bit: when I converting Spectrum games, then use inverted attributes for replacing the flash, it is good solution for most situations.

I found PayPal Donate button in your program, and tested it

Yes I noticed Thank you! 

My idea: the col8-15 can't be selected from the color palette, and additional FIXBIAS icon, it is can be selected from the 256 colors palette. Fixbias-(Fixbias MOD 8 )=col8, col9=col8+1, col 10=col8+2, etc
For example: Fixbias=45 then col8-15=40,41,42,43,44,45,46,47
This is the same method used by operating system on the Enterprise.
Please, please, please implement this.

I will do this for you. It makes sense and is easy to do.
I will probably just modify the existing palette selection form to show a colour group selector.
Where you can choose a group of colors from the expected ranges (0-7, 8-15 etc) and I will show the expected FIXBIAS value as well in the information area.
Should be available in 2-3 weeks - as I have a few other things to finish for the next release as well.
I'm slowly making my way through your other suggestions as well.

Thanks Zozosoft for supporting TommyGun and helping to give your Enterprise 64/128 developer buddies something useful to use for development.

Oh and where you found the donate button - try this:
1) Click on the KiwiWare label in the top left. - Your name will be appearing under the contributors and donations sections
2) Also click on the text under the special thanks heading as it scrolls by! Thats me and my little boy when we was about 6-9 months old.

I found Kevin Thacker's letter on your site. He wrote the first Enterprise emulator. The available EP emulators uses part of his code.

I found Kevin Thacker's letter on your site. He wrote the first Enterprise emulator. The available EP emulators uses part of his code.

Yes - Kevin has helped me in the past with the CPC plugins for TommyGun.
Very nice guy!

This would make a good Enterprise example project.
If you could expand it to include simple sprite animation and tile drawing (like the sabrewulf prj) then I would include it as a demo project.
My suggestion would be a simple space invaders level - no bases to keep it simple.

Good idea!
It would also be really cool if you could use some of the same game play code (functions).
Apart from the display/keyboard routines it should all be compatible with the Enterprise.

I look forward to seeing your converted project.

Sounds like fun and I appreciate your enthusiasm!

I would love to see new graphics that make the enterprise version better