easy68k partial rotation? (ROL/ROR)

So I know how ROL and ROR works for something like D0 = %00000100, if I ROR #1,D0 then D0 it will now be 00000010.

What I want to do is to rotate through only the a select few digits of that number, so for example if I ROR %00000001 one spot, I want it to be 00000100 instead of 10000000, so it only rotates through the last 3 bits of that number. Is there any way to do something like this where I set the bounds of the rotation so it doesn't go all the way back to the first bit?

There is "no silver bullet". You'd have to do it manually.

1. Copy the register into another register.
2. Clear the low 3-bits of the original register (AND with %11111000).
3. Clear the other bits from the copy (AND with %00000111).
4. Rotate the copy right.
5. Copy the copy.
6. Shift the second copy right 5 bits.
7. OR the second copy with the first.
8. Clear the upper bits from the first copy (AND with %00000111).
9. OR the first copy with the original register.