VECTOR: Timer B1 interrupt  address: CB08   Length: 45  M:0 X:0
00CB08    D8            clm                                     ; m:0 x:0
00CB09    EB05          psh     ix, a
00CB0B    F8            sem                                     ; m:1 x:0
00CB0C    3C97110220    bbc     #0x02, 0x1197, 0xcb31
00CB11    3C9711081B    bbc     #0x08, 0x1197, 0xcb31
00CB16    AD8611        lda     al, 0x1186                      ; Branch target from CB39 ; Current Cylinder
00CB19    1A            dec     al
00CB1A    D8            clm                                     ; m:0 x:0
00CB1B    29FF00        and     ax, #0x00ff
00CB1E    18            clc     
00CB1F    6942CB        adc     ax, #0xcb42
00CB22    AA            tax     
00CB23    F8            sem                                     ; m:1 x:0
00CB24    AD6C10        lda     al, 0x106c
00CB27    29F0          and     al, #0xf0
00CB29    1500          ora     al, dp + 0x00 + ix
00CB2B    8D6C10        sta     al, 0x106c
00CB2E    8D0028        sta     al, 0x2800
00CB31    D8            clm                                     ; m:0 x:0, Branch target from CB0C, Branch target from CB11
00CB32    FB05          pul     ix, a
00CB34    40            rti