;-------------------------------
; #JMPB4BBHI
; boot2 jumps to $B4BB for a
; nibble check
; e.g. Snooper Troops 2
;-------------------------------
_jmpb4bbhi
         lda   gIsBoot1   ; if DOS 3.3 bootloader
         bne   jmpb4bbhi_exit
         lda   #$0C
         sta   gDisplayBytes
         ldx   #$84
         ldy   #$03
         jsr   compare    ; and T00,S0C,$84 ==
         !byte $4C,$BB,$B4
         bcs   jmpb4bbhi_exit
         lda   #s_jmpb4bb
         jsr   PrintByID
         lda   #$0C
         ldx   #$84
         ldy   #$03
         jsr   modify     ; then set T00,S0C,$84 =
         !byte $AD,$E9,$B7
jmpb4bbhi_exit