Btw., there's a nice paper on BitBlt by Rob Pike: https://pdos.csail.mit.edu/~rsc/pike84bitblt.pdf
This was in the days of Windows 2 (1988 or so) and I was hacking PPS Smalltalk to support larger, non-VGA displays. I ran the VM in 386 protected mode, because it needed large memory, where it blt-ed to an upper memory frame buffer. This was sort of a "bounce buffer" which in turn was blt-ed onto a Windows canvas by my Windows app which also reflected input events up to the VM.
Bill Gates was impressed when he saw a demo (or so I was told). Of course, he didn't realize the level of hackery involved to make it happen.
I was thinking more along the lines of... I wonder if there's anything in the VPU (or other support hardware) that would be especially useful for accelerating a bytecode VM. But I can't really think of anything.