void main()
main: scope:[main]  from
  [0] *SCREEN = '0'+3*SIZEOF_BYTE/SIZEOF_BYTE
  [1] *(SCREEN+1) = '0'+3*SIZEOF_WORD/SIZEOF_WORD
  [2] *(SCREEN+2) = '0'+main::sz+2*SIZEOF_BYTE/SIZEOF_BYTE
  [3] *(SCREEN+3) = '0'+4*SIZEOF_WORD/SIZEOF_WORD
  [4] *(SCREEN+4) = '0'+8*SIZEOF_BYTE/SIZEOF_BYTE
  [5] *(SCREEN+5) = '0'+4*SIZEOF_BYTE/SIZEOF_BYTE
  to:main::@return
main::@return: scope:[main]  from main
  [6] return 
  to:@return