use std.textio.all;entity test is end;architecture b of test is begin process variable x,q,l,p:integer:=0;variable s:string(1 to 84);begin for i in 1 to 100 loop s:="000000000000000000000000000000000000000000000000000000000000000000000000000000000001";p:=integer'image(i)'length-1;l:= 84;while true loop if l+p<=84 and integer'value(s(l to l+p))=i then write(output,s(l to 84));exit;end if;x:=0;for j in 84 downto 1 loop q:=character'pos(s(j))-48;if q+x>0 then l:=j;end if;q:=x/10+q*2;x:=(q-q mod 10);q:=q-x;s(j):=character'val(48+q);end loop;end loop;end loop;wait;end process;end;
Note that non-ascii characters in the above source code will be escaped (such as \x9f).