Now I have tried to read two of the GAL16v8 with my TL866, the programmer has read and saved JEDEC files, but I am not sure if they are correct. I do not know if the PAL / GAL allows some reading protection, and really has not read anything useful.
This is the content read with TL866 from one of the GAL16v8.
Device : GAL16V8B
Created By:
http://www.autoelectric.cnDate : 2018-11-11 03:20
*QP20
*QF2194
*G0
*F0
*L00000 10000000000000000000000000000000
*L00032 10000000000000000000000000000000
*L00064 11111111111111111111111111111111
*L00096 10000000000000000000000000000000
*L00128 10000000000000000000000000000000
*L00160 10000000000000000000000000000000
*L00192 10000000000000000000000000000000
*L00224 11111111111111111111111111111111
*L00256 11111111111111111111111111111111
*L00288 11111111111111111111111111111111
*L00320 11111111111111111111111111111111
*L00352 11111111111111111111111111111111
*L00384 11111111111111111111111111111111
*L00416 11111111111111111111111111111111
*L00448 11111111111111111111111111111111
*L00480 11111111111111111111111111111111
*L00512 10000000000000000000000000000000
*L00544 11111111111111111111111111111111
*L00576 10000000000000000000000000000000
*L00608 10000000000000000000000000000000
*L00640 10000000000000000000000000000000
*L00672 10000000000000000000000000000000
*L00704 10000000000000000000000000000000
*L00736 10000000000000000000000000000000
*L00768 10000000000000000000000000000000
*L00800 10000000000000000000000000000000
*L00832 10000000000000000000000000000000
*L00864 10000000000000000000000000000000
*L00896 10000000000000000000000000000000
*L00928 10000000000000000000000000000000
*L00960 10000000000000000000000000000000
*L00992 10000000000000000000000000000000
*L01024 11111111111111111111111111111111
*L01056 11111111111111111111111111111111
*L01088 11111111111111111111111111111111
*L01120 11111111111111111111111111111111
*L01152 11111111111111111111111111111111
*L01184 11111111111111111111111111111111
*L01216 11111111111111111111111111111111
*L01248 11111111111111111111111111111111
*L01280 11111111111111111111111111111111
*L01312 11111111111111111111111111111111
*L01344 11111111111111111111111111111111
*L01376 11111111111111111111111111111111
*L01408 11111111111111111111111111111111
*L01440 11111111111111111111111111111111
*L01472 11111111111111111111111111111111
*L01504 11111111111111111111111111111111
*L01536 11111111111111111111111111111111
*L01568 11111111111111111111111111111111
*L01600 11111111111111111111111111111111
*L01632 11111111111111111111111111111111
*L01664 11111111111111111111111111111111
*L01696 11111111111111111111111111111111
*L01728 11111111111111111111111111111111
*L01760 11111111111111111111111111111111
*L01792 11111111111111111111111111111111
*L01824 11111111111111111111111111111111
*L01856 11111111111111111111111111111111
*L01888 11111111111111111111111111111111
*L01920 11111111111111111111111111111111
*L01952 11111111111111111111111111111111
*L01984 11111111111111111111111111111111
*L02016 11111111111111111111111111111111
*L02048 00101100001000011111111101000000
*L02080 00000000111111111111111111111111
*L02112 11111111001101101111111010100100
*L02144 00000001111111111111111111111111
*L02176 111111100110010000
*CB650
*3400