Subroutine dfdf

dfdf 13 b2 02 63 brclr (0x00B2), 0x02, [0xE046]
dfe3 b6 10 2e    ldaa (0x102E) ; SCSR Register
dfe6 85 80       bita 0x80
dfe8 27 5c       beq [0xE046]
dfea d6 b0       ldab (0x00B0)
dfec 2a 06       bpl [0xDFF4]
dfee c4 7f       andb 0x7F
dff0 d7 b0       stab (0x00B0)
dff2 20 52       bra [0xE046]
dff4 5c          incb		Branch Target from dfec
dff5 c1 02       cmpb 0x02
dff7 23 22       bls [0xE01B]
dff9 7f 00 b0    clr (0x00B0)
dffc 96 a3       ldaa (0x00A3)
dffe 81 00       cmpa 0x00
e000 26 08       bne [0xE00A]
e002 fe c0 00    ldx (0xC000)
e005 b6 c0 02    ldaa (0xC002)
e008 20 0c       bra [0xE016]
e00a 81 45       cmpa 0x45		Branch Target from e000
e00c 27 04       beq [0xE012]
e00e 81 aa       cmpa 0xAA
e010 26 35       bne [0xE047]
e012 de a4       ldx (0x00A4)		Branch Target from e00c
e014 a6 00       ldaa (X+0x00)
e016 df ab       stx (0x00AB)		Branch Target from e008
e018 97 ad       staa (0x00AD)
e01a 5f          clrb
e01b d7 b0       stab (0x00B0)		Branch Target from dff7
e01d ce 00 ab    ldx 0x00AB
e020 3a          abx
e021 e6 00       ldab (X+0x00)
e023 d7 c9       stab (0x00C9)
e025 4f          clra
e026 ce 00 08    ldx 0x0008
e029 54          lsrb		Branch Target from e02d
e02a 89 00       adca 0x00
e02c 09          dex
e02d 26 fa       bne [0xE029]
e02f 04          lsrd
e030 54          lsrb
e031 b6 10 2c    ldaa (0x102C) ; SCCR1 Register
e034 84 bf       anda 0xBF
e036 1b          aba
e037 b7 10 2c    staa (0x102C) ; SCCR1 Register
e03a d6 c9       ldab (0x00C9)
e03c f7 10 2f    stab (0x102F) ; SCDR Register
e03f 13 b0 02 03 brclr (0x00B0), 0x02, [0xE046]
e043 14 b0 80    bset (0x00B0), 0x80
e046 39          rts		Branch Target from dfdf, dfe8, dff2, e03f

e047 15 b2 02    bclr (0x00B2), 0x02		Branch Target from e010
e04a 39          rts