Puppy Linux on laptop running Ubuntu 14.04 (dual-boot)?

I just read about Puppy Linux the other day. The latest release is called Tahrpup, and is partially built from Trusty Tahr (Ubuntu 14.04). So now I am curious, and I would like to install it on my laptop. **Is it possible to do this as a dual-boot installation?** Actually I guess it would be a treble-boot (or whatever the correct term is) because I already have Windows on here. (The laptop came with Windows pre-installed. I had Ubuntu installed in another partition, and I never never use Windows.) **How could I do this so that I will still use the grub from Ubuntu?** My laptop specs:
*Acer Aspire
3.2 GiB memory
AMD A6-1450 APU with Radeon HD Graphics × 4
Gallium 0.4 on AMD KABINI
64-bit OS
378.7 GB disk space
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