[1F 62 XX] - Store XX at 7E964D.

C1/69F7: C2 31        REP #$31                  Flag manipulation.
C1/69F9: 8A           TXA                       A, X = arg1
C1/69FA: 20 36 00     JSR $0036                 Jump to C1/0036.

C1/0036: C2 31        REP #$31                  Flag manipulation.
C1/0038: 8D 4D 96     STA $964D                 Store arg1 at $7E964D.
C1/003B: 60           RTS                       Return.

C1/69FD: A9 00 00     LDA #$0000                Nullify A.
C1/6A00: 60           RTS                       End.