Code block address: DDAF   Length: 22  M:1 X:0 called by: DC3B
00DDAF    AD4211        lda     al, 0x1142                      ; Call target from DC3B
00DDB2    3A            inc     al
00DDB3    C914          cmp     al, #0x14
00DDB5    9002          bcc     0xddb9
00DDB7    A900          lda     al, #0x00
00DDB9    8D4211        sta     al, 0x1142                      ; Branch target from DDB5
00DDBC    4A            lsr     al
00DDBD    B006          bcs     0xddc5
00DDBF    0C201002      seb     #0x02, 0x1020
00DDC3    8007          bra     0xddcc

Code block address: DDC5   Length: 44  M:1 X:0 called by: DDBD
00DDC5    4A            lsr     al                              ; Branch target from DDBD
00DDC6    B004          bcs     0xddcc
00DDC8    0C201004      seb     #0x04, 0x1020
00DDCC    AD4211        lda     al, 0x1142                      ; Branch target from DDC3, Branch target from DDC6
00DDCF    C907          cmp     al, #0x07
00DDD1    D004          bne     0xddd7
00DDD3    0C201001      seb     #0x01, 0x1020
00DDD7    AA            tax                                     ; Branch target from DDD1
00DDD8    428A          txb     
00DDDA    38            sec     
00DDDB    42E90A        sbc     bl, #0x0a
00DDDE    9003          bcc     0xdde3
00DDE0    42AA          tbx     
00DDE2    8A            txa     
00DDE3    C903          cmp     al, #0x03                       ; Branch target from DDDE
00DDE5    F00A          beq     0xddf1
00DDE7    C909          cmp     al, #0x09
00DDE9    D00A          bne     0xddf5
00DDEB    0C201020      seb     #0x20, 0x1020
00DDEF    8004          bra     0xddf5

Code block address: DDF1   Length: 5  M:1 X:0 called by: DDE5
00DDF1    0C201010      seb     #0x10, 0x1020                   ; Branch target from DDE5
00DDF5    60            rts                                     ; Branch target from DDE9, Branch target from DDEF