Subroutine df12

df12 13 b2 02 63 brclr (0x00B2), 0x02, [0xDF79]
df16 b6 10 2e    ldaa (0x102E) ; SCSR Register
df19 85 80       bita 0x80
df1b 27 5c       beq [0xDF79]
df1d d6 b0       ldab (0x00B0)
df1f 2a 06       bpl [0xDF27]
df21 c4 7f       andb 0x7F
df23 d7 b0       stab (0x00B0)
df25 20 52       bra [0xDF79]
df27 5c          incb		Branch Target from df1f
df28 c1 02       cmpb 0x02
df2a 23 22       bls [0xDF4E]
df2c 7f 00 b0    clr (0x00B0)
df2f 96 a3       ldaa (0x00A3)
df31 81 00       cmpa 0x00
df33 26 08       bne [0xDF3D]
df35 fe c0 00    ldx (0xC000) ; ROM ID
df38 b6 c0 02    ldaa (0xC002)
df3b 20 0c       bra [0xDF49]
df3d 81 45       cmpa 0x45		Branch Target from df33
df3f 27 04       beq [0xDF45]
df41 81 aa       cmpa 0xAA
df43 26 35       bne [0xDF7A]
df45 de a4       ldx (0x00A4)		Branch Target from df3f
df47 a6 00       ldaa (X+0x00)
df49 df ab       stx (0x00AB)		Branch Target from df3b
df4b 97 ad       staa (0x00AD)
df4d 5f          clrb
df4e d7 b0       stab (0x00B0)		Branch Target from df2a
df50 ce 00 ab    ldx 0x00AB
df53 3a          abx
df54 e6 00       ldab (X+0x00)
df56 d7 c9       stab (0x00C9)
df58 4f          clra
df59 ce 00 08    ldx 0x0008
df5c 54          lsrb		Branch Target from df60
df5d 89 00       adca 0x00
df5f 09          dex
df60 26 fa       bne [0xDF5C]
df62 04          lsrd
df63 54          lsrb
df64 b6 10 2c    ldaa (0x102C) ; SCCR1 Register
df67 84 bf       anda 0xBF
df69 1b          aba
df6a b7 10 2c    staa (0x102C) ; SCCR1 Register
df6d d6 c9       ldab (0x00C9)
df6f f7 10 2f    stab (0x102F) ; SCDR Register
df72 13 b0 02 03 brclr (0x00B0), 0x02, [0xDF79]
df76 14 b0 80    bset (0x00B0), 0x80
df79 39          rts		Branch Target from df12, df1b, df25, df72

df7a 15 b2 02    bclr (0x00B2), 0x02		Branch Target from df43
df7d 39          rts