The Giant Handbook of Computer Projects 1979 (incl. calculator Games)

By coincidence (searching for IM6100/HM6100 disassembler) I found this book on archive-org. No notable content for Intersil, but some good listings including calculator games like for Texas T1

and SR-56 and maybe more

Also other listings mainly in BASIC for other computers. And basic info including hardware. 503 pages.