Code block address: DD6B   Length: 11  M:1 X:0 called by: DC02
00DD6B    240C0207      bbs     #0x02, dp + 0x0c, 0xdd76        ; Call target from DC02, Read from Port 4
00DD6F    3C9B110212    bbc     #0x02, 0x119b, 0xdd86 ; PreviousVSS2
00DD74    8005          bra     0xdd7b

Code block address: DD76   Length: 50  M:1 X:0 called by: DD6B
00DD76    2C9B11020B    bbs     #0x02, 0x119b, 0xdd86           ; Branch target from DD6B ; PreviousVSS2
00DD7B    EE4310        inc     0x1043                          ; Branch target from DD74        ; VSS2_Pulse_Count
00DD7E    AD9B11        lda     al, 0x119b
00DD81    4902          eor     al, #0x02
00DD83    8D9B11        sta     al, 0x119b
00DD86    AE3210        ldx     0x1032                          ; Branch target from DD6F, Branch target from DD76        ; VSS2_Time_Count
00DD89    E8            inx     
00DD8A    E05901        cpx     #0x0159
00DD8D    900D          bcc     0xdd9c
00DD8F    AD4310        lda     al, 0x1043        ; VSS2_Pulse_Count
00DD92    8D6211        sta     al, 0x1162 ; VSS2 Speed
00DD95    A20000        ldx     #0x0000
00DD98    9C431000      ldm     #0x00, 0x1043        ; VSS2_Pulse_Count
00DD9C    8E3210        stx     0x1032                          ; Branch target from DD8D        ; VSS2_Time_Count
00DD9F    3C27100804    bbc     #0x08, 0x1027, 0xdda8           ;  Errorflags 2 ; VSS2 Error
00DDA4    A905          lda     al, #0x05
00DDA6    8003          bra     0xddab

Code block address: DDA8   Length: 7  M:1 X:0 called by: DD9F
00DDA8    AD6211        lda     al, 0x1162                      ; Branch target from DD9F ; VSS2 Speed
00DDAB    8D4210        sta     al, 0x1042                      ; Branch target from DDA6
00DDAE    60            rts