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Text File  |  1987-01-14  |  256b  |  11 lines
  1.     extrn    .broom, .bflush
  2. ;
  3. ; return space available in buffer. If buffer empty align
  4. ; pointers and return 0, else return 0ffh (ptrs unchanged)
  5. ; z flag set accordingly
  6. ; a,f,b,c
  7. .bspace::
  8.     call    .broom
  9.     rnz
  10.     jmp    .bflush
  11.  6