Not architecturally, but Federico Faggin and Masatoshi Shima were the key people on the 4004 and 8080 before leaving to form Zilog and build the Z-80. The Z-80 had to have DAA (decimal adjust) to be compatible with the 8080. Possibly the 8080 had DAA to compare well against the 6800. If that's the case, then we must ask where the 6800 got the idea. Could be from minicomputers or even mainframes, but from what I've read the early microcomputer designers had no pretense of making processors to compete anywhere near the high end. Instead their sights were set more along the line of embedded systems. Desktop calculators fit into that and Shima himself designed desktop calculators and helped specify the 4004 before he came to Intel. Thus my speculation that the impetus could have come from that direction.