Code block address: D6DA   Length: 25  M:1 X:0 called by: D60E
00D6DA    20F3D6        jsr     0xd6f3                          ; Call target from D60E, Call target from D629, Call target from D65A, Call target from D673, Call target from D6A1
00D6DD    853A          sta     al, dp + 0x3a                   ; Write to unknown peripheral [3A]
00D6DF    343C08FC      bbc     #0x08, dp + 0x3c, 0xd6df        ; Read from unknown peripheral [3C], Branch target from D6DF, Branch target from D6E3
00D6E3    343D08F8      bbc     #0x08, dp + 0x3d, 0xd6df        ; Read from unknown peripheral [3D]
00D6E7    A53E          lda     al, dp + 0x3e                   ; Read from unknown peripheral [3E]
00D6E9    8D0010        sta     al, 0x1000
00D6EC    143D08        clb     #0x08, dp + 0x3d                ; Write to unknown peripheral [3D]
00D6EF    20F3D6        jsr     0xd6f3
00D6F2    60            rts