Allow programability to few specific bits in a word while other remain fixed

[jcarmody]

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@smercurio_fc wrote:

I went by the original statement of the problem, which had ones. If you want a more generic solution, that's a simple modification (still with no arrays )

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I strongly suspected that there would be a way, but I didn't have it.  Thanks you.

[RavensFan]

Here is based on what I was saying,  but I should've XORed the final step rather than AND.

Try this.

This turns off the bits of interest then toggles them on.

See if it works for all cases.

[Darin.K]

It is simple to merge two values based on a mask.  When a bit in the mask is 0, that bit from the 'unmasked' value is chosen, otherwise the bit from 'masked' is chosen.

[Labbyte]

Thx a lot everyone for putting your efforts.