.setcpu "65816"
         .org    $10f0
         .a8
         .i8
L10F0:   sec                ;2
         xce                ;2
         bra     @L1108     ;4  crosses page boundary

         .res    20,$00

@L1108:  bra     @L110A     ;3

@L110A:  lda     #$00       ;2
         beq     @L1110     ;3  branch always

         .byte   $00
         .byte   $00

@L1110:  bne     @L1110     ;2  branch never
         lda     $1234      ;4
         beq     @L1119     ;2+ branch maybe
         brk                ;7  BRK with E=1

         .byte   $01

@L1119:  lda     $22,S      ;4
         trb     $02        ;5+
         asl     $03,x      ;6+
         clc                ;2
         xce                ;2
         rep     #$30       ;3
         .a16
         .i16
         lda     #$0011     ;3
         ldy     #$0022     ;3
         trb     $04        ;7+
         asl     $05,x      ;8+
         ldx     $1235      ;5
         beq     @L1134     ;2+
         brk                ;8  BRK with E=0

         .byte   $02

@L1134:  lda     $33,S      ;5
         beq     @L113A     ;2+
         bra     L10F0      ;3

@L113A:  rep     #$20       ;3
         sep     #$10       ;3
         .i8
         sta     $10        ;4+
         stx     $11        ;3+
         sty     $12        ;3+
         rep     #$10       ;3
         .i16
         sep     #$20       ;3
         .a8
         sta     $11        ;3+
         stx     $12        ;4+
         sty     $13        ;4+
         rep     #$30       ;3
         .a16
         lda     $1234      ;5
         adc     #$0066     ;3
         adc     $1235      ;5
         sed                ;2  should have no effect on cycle counts on 65816
         adc     #$0077     ;3
         adc     $1236      ;5
         sec                ;2
         xce                ;2
         .a8
         .i8
         sbc     #$88       ;2
         sbc     $1237      ;4
         cld                ;2
         sbc     #$99       ;2
         sbc     $1238      ;4
         rts                ;6