MOVE.L #100,-(SP)
  MOVE.L #200,-(SP) ; 200 will be printed first
  LEA FormatString,A0
  MOVE.L SP,A1
  LEA stuffChar(pc),A2
  LEA StringBuffer,A3
  MOVE.L 4,A6
  CALLLIB _LVORawDoFmt
  
  LEA StringBuffer,A1
  MOVE.L A1,D1
  MOVE.L DosBase,A6
  CALLLIB _LVOPutStr ; => "200,100\n"
  ADD.L #8,SP

stuffChar: ;just recreate what's in the manual
  MOVE.B D0,(A3)+
  RTS

data:
FormatString dc.b "%ld,%ld",10,0
  CNOP 0,4
StringBuffer ds.b 32