binary to gray code counter

[opttimus]

how to write vhdl program to get count up binary when input is 1 and change to gray code when input is 0
binary Gray Code
000 000
001 001
010 011
011 010
100 110
101 111
110 101
111 100

Can anybody help pls?

 

[Prashanthanilm]

I am not familiar with VHDL coding! But what stops you from doing?
have a if statement with two loops , one for binary and for gray code!! That's it!

 

[TrickyDicky]

there is no need to use Loops for this code. At this level, it would be easy enough with a simple decoder.

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but there are plenty of exmples out there - how about trying google?