This is the paper that introduced 'The Wheel of Reincarnation' to describe how
the same ideas keep recurring in computer science.
Reading this reminded me quite a bit of ANTIC[1], the display processor that gave the Atari 8-bit computers much of their appeal, though it deferred the more general computing to the CPU with its display-list interrupts.
This is super cool. This is like a bare minimum framebuffer coprocessor. I remember pouring over the Amiga Hardware Reference Manual and figuring out how to position sprites in hardware.