So this equation is specifically as follows:
/o19 = /i2 * /i9
+ /i2 * /i8
+ /i2 * /i7
o19.oe = /i11
o19 is the single output, which is supposedly the !PAS signal.
i2 is !AS (address strobe), i7, i8 and i9 are FC2, FC1 and FC0 respectively, and i11 is !BGACK.
All of the inputs are signals directly from the 68030. The !PAS signal is meant to be generated by the 68851 MMU, but instead is generated here.