I was able to accurately retrieve PLA info from the shattered 0972 die pics A few bits on the microinstructions were unreadable, but there's 0% chance they'd have used a different opcode in that place. And all the PLAs are the same as the TI-1270 TMS0974. I got TI-1250 working in MAME, now going to start on TI-1200(or TI-1250 1st ver.)
David: You dumped Grillo Parlante(snspell italy), right? Do you have the MCU ROM for it? It's the same MCU code as the German and French versions too.