INCLUDE PROLOG.H
 EXTRN _Ustatus:WORD
_CC1:
 PUBLIC _ferror
_ferror:
 MOV BX,OFFSET _Ustatus
 XCHG DX,BX
 MOV BX,2
 ADD BX,SP
 MOV BX,[BX]
 ADD BX,BX
 ADD BX,DX
 MOV BX,[BX]
 XCHG DX,BX
 MOV BX,8
 AND BX,DX
 RET
 INCLUDE EPILOG.H
 END