;-------------------------------
; #BADEMU2
; RWTS checks for timing bit by
; checking if data latch is still
; $D5 after waiting "too long"
; but this confuses legacy emulators
; (AppleWin, older versions of MAME)
; so we patch it for compatibility
; e.g. Dinosaur Days
;-------------------------------
_bademu2
         lda   gIsRWTS    ; if DOS 3.3 RWTS
         bne   bademu2_exit
         lda   #$03
         ldx   #$4F
         ldy   #$11
         jsr   compare    ; and T00,S03,$4F ==
         !byte $BD,$8C,$C0,$10,$FB,$4A,$C9,$6A
         !byte $D0,$EF,$BD,$8C,$C0,$C9,$D5,$F0
         !byte $12
         bcs   bademu2_exit
         lda   #$03
         ldx   #$59
         ldy   #$02
         jsr   modify     ; and set T00,S03,$59 =
         !byte $F0,05
bademu2_exit