SearchLine:
;Inputs:
;     HL points to the start
;     BC is the number of bytes to search
;     DE is the line number
;     A is the line byte
;Outputs:
;     A is not changed
;     BC is the number of bytes left for the search
;     DE points to the line
;     HL is the length of the line
;===============================================================
  inc bc
  dec de \ inc d \ inc e
;  or a
_:
  ld (TempWord1),hl
  cpir
  jp po,+_
  dec e \ jr nz,-_
  dec d \ jr nz,-_
_:
  scf
  ld de,(TempWord1)
  sbc hl,de
  ret