path: root/fpcsrc/tests/test/tint642.pp

{$Q-} { this is necessary to avoid an overflow error below }
{$mode objfpc}
uses
   sysutils
{$ifdef go32v2}
   ,dpmiexcp
{$endif go32v2}
   ;
type
   tqwordrec = packed record
{$ifndef ENDIAN_BIG}
      low,high : dword;
{$else}
      high, low : dword;
{$endif}
   end;

const
{$ifdef CPU68K}
  { this test takes ages under m68k otherwise PM }
  NumIterations = 10000;
{$else not CPU68K}
  NumIterations = 100000;
{$endif not CPU68K}

procedure dumpqword(q : qword);

  begin
     write('$',hexstr(tqwordrec(q).high,8),' ',hexstr(tqwordrec(q).low,8));
  end;

procedure dumpqwordln(q : qword);

  begin
     dumpqword(q);
     writeln;
  end;

procedure assignqword(h,l : dword;var q : qword);

  begin
     tqwordrec(q).high:=h;
     tqwordrec(q).low:=l;
  end;

procedure do_error(l : longint);

  begin
     writeln('Error near number ',l);
     halt(1);
  end;

procedure do_error;

  begin
     do_error(0);
  end;

procedure simpletestcmpqword;

  var
     q1,q2,q3,q4 : qword;

  begin
     assignqword(0,5,q1);
     assignqword(6,0,q2);
     assignqword(6,1,q3);
     assignqword(6,5,q4);
     { first test the code generation of the operators }
     if q1<>q1 then
       do_error(0);
     if q2<>q2 then
       do_error(0);
     if q3<>q3 then
       do_error(0);
     if not(q1=q1) then
       do_error(0);
     if not(q2=q2) then
       do_error(0);
     if not(q3=q3) then
       do_error(0);
     writeln('  <>,= succesfully tested');

     if q1>q2 then
       do_error(1100);
     if q2>q3 then
       do_error(1101);
     if q2<q1 then
       do_error(1102);
     if q3<q2 then
       do_error(1103);
     writeln('  <,> succesfully tested');

     if q1>=q2 then
       do_error(1104);
     if q2>=q3 then
       do_error(1105);
     if q2<=q1 then
       do_error(1106);
     if q3<=q2 then
       do_error(1107);
     writeln('  >=,<= succesfully tested');

     if q1=q2 then
       do_error(1108);
     if q2=q3 then
       do_error(1109);
     if q3=q1 then
       do_error(1111);

     if q1=q4 then
       do_error(1112);
     if q2=q4 then
       do_error(1113);
     if q3=q4 then
       do_error(1114);
     writeln('  More comparisations successful tested');
  end;

procedure testaddqword;

  var
     q1,q2,q3,q4,q5,q6 : qword;

  begin
     { without overflow between 32 bit }
     assignqword(0,5,q1);
     assignqword(0,6,q2);
     assignqword(0,1,q3);
     assignqword(0,11,q4);
     assignqword(0,1,q5);
     if q1+q2<>q4 then
       do_error(1200);
     if q1+q3+q1<>q4 then
       do_error(1201);
     if q1+(q3+q1)<>q4 then
       do_error(1202);
     if (q1+q3)+q1<>q4 then
       do_error(1203);
     { a more complex expression }
     if ((((q5+q3)+(q3+q5))+((q5+q3)+(q3+q5)))+q5+q3+q5)<>q4 then
       do_error(1204);
     { with overflow between 32 bit }
     assignqword(0,$ffffffff,q1);
     assignqword(1,3,q2);
     assignqword(0,4,q3);
     assignqword(1,4,q4);
     assignqword(0,1,q5);
     assignqword(1,$fffffffe,q6);
     if q1+q3<>q2 then
       do_error(1205);
     if q3+q1<>q2 then
       do_error(1206);
     if q1+(q3+q5)<>q4 then
       do_error(1207);
     if (q1+q3)+q5<>q4 then
       do_error(1208);
     if (q1+q1)<>q6 then
       do_error(1209);
  end;

procedure testcmpqword;

  var
     q1,q2,q3,q4,q5,q6 : qword;

  begin
     assignqword(0,$ffffffff,q1);
     assignqword(0,$ffffffff,q2);
     assignqword(1,$fffffffe,q3);
     assignqword(0,2,q4);
     assignqword(1,$fffffffc,q5);
     if (q1+q2)<>q3 then
       do_error(1300);
     if not(q3=(q1+q2)) then
       do_error(1301);
     if (q1+q2)>q3 then
       do_error(1302);
     if (q1+q2)<q3 then
       do_error(1303);
     if not(q3<=(q1+q2)) then
       do_error(1304);
     if not(q3>=(q1+q2)) then
       do_error(1305);

     if (q1+q2)<>(q4+q5) then
       do_error(1306);
     if not((q4+q5)=(q1+q2)) then
       do_error(1307);
     if (q1+q2)>(q4+q5) then
       do_error(1308);
     if (q1+q2)<(q4+q5) then
       do_error(1309);
     if not((q4+q5)<=(q1+q2)) then
       do_error(1310);
     if not((q4+q5)>=(q1+q2)) then
       do_error(1311);
  end;

procedure testlogqword;

  var
     q0,q1,q2,q3,q4,q5,q6 : qword;

  begin
     assignqword(0,0,q0);
     assignqword($ffffffff,$ffffffff,q1);
     assignqword(0,$ffffffff,q2);
     assignqword($ffffffff,0,q3);
     assignqword($a0a0a0a0,$50505050,q4);
     assignqword(0,$50505050,q5);
     assignqword($a0a0a0a0,0,q6);

     { here we don't need to test all cases of locations, }
     { this is already done by the addtion test           }
     if (q2 or q3)<>q1 then
       do_error(1400);
     if (q5 or q6)<>q4 then
       do_error(1401);

     if (q2 and q3)<>q0 then
       do_error(1402);
     if (q5 and q6)<>q0 then
       do_error(1403);

     if (q2 xor q3)<>q1 then
       do_error(1404);
     if (q5 xor q6)<>q4 then
       do_error(1405);
     { the test before could be also passed by the or operator! }
     if (q4 xor q4)<>q0 then
       do_error(1406);
  end;

procedure testshlshrqword;

  var
     q0,q1,q2,q3,q4,q5 : qword;
     l1,l2 : longint;

  begin
     assignqword(0,0,q0);
     assignqword($ffff,$ffff0000,q1);
     assignqword(0,$ffffffff,q2);
     assignqword($ffffffff,0,q3);
     assignqword(0,1,q4);
     assignqword($80000000,0,q5);

     l1:=16;
     l2:=0;
     if (q1 shl 16)<>q3 then
       do_error(1500);
     if (q1 shl 48)<>q0 then
       do_error(1501);
     if (q1 shl 47)<>q5 then
       do_error(1501);
     if ((q1+q0) shl 16)<>q3 then
       do_error(1502);
     if ((q1+q0) shl 48)<>q0 then
       do_error(1503);
     if ((q1+q0) shl 47)<>q5 then
       do_error(15031);

     if (q1 shl l1)<>q3 then
       do_error(1504);
     if (q1 shl (3*l1))<>q0 then
       do_error(1505);
     if ((q1+q0) shl l1)<>q3 then
       do_error(1506);
     if ((q1+q0) shl (3*l1))<>q0 then
       do_error(1507);
     if ((q1+q0) shl (3*l1-1))<>q5 then
       do_error(15071);

     if (q1 shl (l1+l2))<>q3 then
       do_error(1508);
     if ((q1+q0) shl (l1+l2))<>q3 then
       do_error(1509);

     if (q1 shr 16)<>q2 then
       do_error(1510);
     if (q1 shr 48)<>q0 then
       do_error(1511);
     if (q1 shr 47)<>q4 then
       do_error(15111);

     if ((q1+q0) shr 16)<>q2 then
       do_error(1512);
     if ((q1+q0) shr 48)<>q0 then
       do_error(1513);
     if (q1 shr l1)<>q2 then
       do_error(1514);
     if (q1 shr (3*l1))<>q0 then
       do_error(1515);
     if (q1 shr (3*l1-1))<>q4 then
       do_error(15151);

     if ((q1+q0) shr l1)<>q2 then
       do_error(1516);
     if ((q1+q0) shr (3*l1))<>q0 then
       do_error(1517);
     if ((q1+q0) shr (3*l1-1))<>q4 then
       do_error(15171);

     if (q1 shr (l1+l2))<>q2 then
       do_error(1518);
     if ((q1+q0) shr (l1+l2))<>q2 then
       do_error(1519);
  end;

procedure testsubqword;

  var
     q0,q1,q2,q3,q4,q5,q6 : qword;

  begin
     { without overflow between 32 bit }
     assignqword(0,0,q0);
     assignqword(0,6,q1);
     assignqword(0,5,q2);
     assignqword(0,1,q3);
     assignqword(0,11,q4);
     assignqword(0,1,q5);
     if q1-q2<>q3 then
       do_error(1600);
     if q1-q0-q1<>q0 then
       do_error(1601);
     if q1-(q0-q1)<>q1+q1 then
       do_error(1602);
     if (q1-q0)-q1<>q0 then
       do_error(1603);

     { a more complex expression }
     if ((((q5-q3)-(q3-q5))-((q5-q3)-(q3-q5))))<>q0 then
       do_error(1604);

     { with overflow between 32 bit }
     assignqword(1,0,q1);
     assignqword(0,$ffffffff,q2);
     assignqword(0,1,q3);
     assignqword(1,$ffffffff,q4);

     if q1-q2<>q3 then
       do_error(1605);
     if q1-q0-q2<>q3 then
       do_error(1606);
     if q1-(q0-q2)<>q4 then
       do_error(1607);
     if (q1-q0)-q1<>q0 then
       do_error(1608);

     assignqword(1,$ffffffff,q5);
     assignqword(1,$ffffffff,q4);

     { a more complex expression }
     if ((((q5-q3)-(q3-q5))-((q5-q3)-(q3-q5))))<>q0 then
       do_error(1609);
  end;

procedure testnotqword;

  var
     q0,q1,q2,q3,q4 : qword;

  begin
     assignqword($f0f0f0f0,$f0f0f0f0,q1);
     assignqword($f0f0f0f,$f0f0f0f,q2);
     assignqword($f0f0f0f0,0,q3);
     assignqword(0,$f0f0f0f0,q4);
     if not(q1)<>q2 then
       do_error(1700);
     if not(q3 or q4)<>q2 then
       do_error(1701);

     { do a more complex expression to stress the register saving }
     if not(q3 or q4)<>not(q3 or q4) then
       do_error(1702);
  end;

procedure testnegqword;

  var
     q0,q1,q2,q3,q4 : qword;

  begin
     assignqword($1,$0,q1);
     assignqword($0,1234,q2);
     if -q1<>(0-q1) then
       do_error(2700);
     if -q2<>(0-q2) then
       do_error(2701);
     if -(q1+q2)<>(0-(q1+q2)) then
       do_error(2702);
  end;

procedure testmulqword;

  var
     q0,q1,q2,q3,q4,q5,q6 : qword;
     i : longint;

  begin
     assignqword(0,0,q0);
     assignqword(0,1,q1);
     assignqword(0,4,q2);
     assignqword(2,0,q3);
     assignqword(8,0,q4);
     assignqword(0,1,q5);
     assignqword($ffff,$12344321,q6);
     { to some trivial tests       }
     { to test the code generation }
     if q1*q2<>q2 then
       do_error(1800);
     if q1*q2*q3<>q4 then
       do_error(1801);
     if q1*(q2*q3)<>q4 then
       do_error(1802);
     if (q1*q2)*q3<>q4 then
       do_error(1803);
     if (q6*q5)*(q1*q2)<>q1*q2*q5*q6 then
       do_error(1804);

     { a more complex expression }
     if ((((q1*q5)*(q1*q5))*((q5*q1)*(q1*q5)))*q5*q1*q5)<>q1 then
       do_error(1805);

     { now test the multiplication procedure with random bit patterns }
     writeln('Doing some random multiplications, takes a few seconds');
     writeln('........................................ 100%');
     for i:=1 to NumIterations do
       begin
          tqwordrec(q1).high:=0;
          tqwordrec(q1).low:=random($7ffffffe);
          tqwordrec(q2).high:=0;
          tqwordrec(q2).low:=random($7ffffffe);
          if q1*q2<>q2*q1 then
            begin
               write('Multiplication of ');
               dumpqword(q1);
               write(' and ');
               dumpqword(q2);
               writeln(' failed');
               do_error(1806);
            end;
          if i mod (NumIterations div 20)=0 then
            write('.');
       end;
     for i:=1 to NumIterations do
       begin
          tqwordrec(q1).high:=0;
          tqwordrec(q1).low:=random($7ffffffe);
          q1:=q1 shl 16;
          tqwordrec(q2).high:=0;
          tqwordrec(q2).low:=random($fffe);
          if q1*q2<>q2*q1 then
            begin
               write('Multiplication of ');
               dumpqword(q1);
               write(' and ');
               dumpqword(q2);
               writeln(' failed');
               do_error(1806);
            end;
          if i mod (NumIterations div 20)=0 then
            write('.');
       end;
     writeln(' OK');
  end;

procedure testdivqword;

  var
     q0,q1,q2,q3,q4,q5,q6 : qword;
     i : longint;

  begin
     assignqword(0,0,q0);
     assignqword(0,1,q1);
     assignqword(0,4,q2);
     assignqword(2,0,q3);
     assignqword(8,0,q4);
     assignqword(0,1,q5);
     assignqword($ffff,$12344321,q6);
     { to some trivial tests       }
     { to test the code generation }
     if q2 div q1<>q2 then
       do_error(1900);
     if q2 div q1 div q1<>q2 then
       do_error(1901);
     if q2 div (q4 div q3)<>q1 then
       do_error(1902);
     if (q4 div q3) div q2<>q1 then
       do_error(1903);

     { a more complex expression }
     if (q4 div q3) div (q2 div q1)<>(q2 div q1) div (q4 div q3) then
       do_error(1904);

     { now test the division procedure with random bit patterns }
     writeln('Doing some random divisions, takes a few seconds');
     writeln('.................... 100%');
     for i:=1 to NumIterations do
       begin
          tqwordrec(q1).high:=random($7ffffffe);
          tqwordrec(q1).low:=random($7ffffffe);
          tqwordrec(q2).high:=random($7ffffffe);
          tqwordrec(q2).low:=random($7ffffffe);
          { avoid division by zero }
          if (tqwordrec(q2).low or tqwordrec(q2).high)=0 then
            tqwordrec(q2).low:=1;
          q3:=q1 div q2;
          { get a restless division }
          q1:=q2*q3;
          q3:=q1 div q2;
          if q3*q2<>q1 then
            begin
               write('Division of ');
               dumpqword(q1);
               write(' by ');
               dumpqword(q2);
               writeln(' failed');
               do_error(1906);
            end;
          if i mod (NumIterations div 10)=0 then
            write('.');
       end;
     for i:=1 to NumIterations do
       begin
          tqwordrec(q1).high:=0;
          tqwordrec(q1).low:=random($7ffffffe);
          tqwordrec(q2).high:=0;
          tqwordrec(q2).low:=random($7ffffffe);
          { avoid division by zero }
          if tqwordrec(q2).low=0 then
            tqwordrec(q2).low:=1;
          { get a restless division }
          q3:=q1*q2;
          q3:=q3 div q2;
          if q3<>q1 then
            begin
               write('Division of ');
               dumpqword(q1);
               write(' by ');
               dumpqword(q2);
               writeln(' failed');
               do_error(1907);
            end;
          if i mod (NumIterations div 10)=0 then
            write('.');
       end;
     writeln(' OK');
  end;

function testf : qword;

  var
     q : qword;

  begin
     assignqword($ffffffff,$a0a0a0a0,q);
     testf:=q;
  end;

procedure testfuncqword;

  var
     q : qword;

  begin
     assignqword($ffffffff,$a0a0a0a0,q);
     if testf<>q then
       do_error(1900);
     if q<>testf then
       do_error(1901);
  end;

procedure testtypecastqword;

  var
     s1,s2 : shortint;
     b1,b2 : byte;
     w1,w2 : word;
     i1,i2 : integer;
     l1,l2 : longint;
     d1,d2 : dword;
     q1,q2 : qword;
     r1,r2 : double;

  begin
     { shortint }
     s1:=75;
     s2:=0;
     q1:=s1;
     { mix up the processor a little bit }
     q2:=q1;
     if q2<>75 then
       begin
          dumpqword(q2);
          do_error(2006);
       end;
     s2:=q2;
     if s1<>s2 then
       do_error(2000);

     { byte }
     b1:=$ca;
     b2:=0;
     q1:=b1;
     { mix up the processor a little bit }
     q2:=q1;
     if q2<>$ca then
       do_error(2007);
     b2:=q2;
     if b1<>b2 then
       do_error(2001);

     { integer }
     i1:=12345;
     i2:=0;
     q1:=i1;
     { mix up the processor a little bit }
     q2:=q1;
     if q2<>12345 then
       do_error(2008);
     i2:=q2;
     if i1<>i2 then
       do_error(2002);

     { word }
     w1:=$a0ff;
     w2:=0;
     q1:=w1;
     { mix up the processor a little bit }
     q2:=q1;
     if q2<>$a0ff then
       do_error(2009);
     w2:=q2;
     if w1<>w2 then
       do_error(2003);

     { longint }
     l1:=12341234;
     l2:=0;
     q1:=l1;
     { mix up the processor a little bit }
     q2:=q1;
     if q2<>12341234 then
       do_error(2010);
     l2:=q2;
     if l1<>l2 then
       do_error(2004);

     { dword }
     d1:=$5bcdef01;
     b2:=0;
     q1:=d1;
     { mix up the processor a little bit }
     q2:=q1;
     if q2<>$5bcdef01 then
       do_error(2011);
     d2:=q2;
     if d1<>d2 then
       do_error(2005);

     { real }
     { memory location }
     q1:=12;
     d1:=q1;
     d2:=12;
     if d1<>d2 then
       do_error(2012);

     { register location }
     q1:=12;
     d1:=q1+1;
     d2:=13;
     if d1<>d2 then
       do_error(2013);

     // a constant which can't be loaded with fild
     q1:=$80000000;
     q1:=q1 shl 32;
     d2:=$80000000;
     if q1<>double(d2)*d2*2.0 then
       do_error(20);
     // register location
     q1:=q1+1;
     if q1<>double(d2)*d2*2.0+1 then
       do_error(2014);
  end;

procedure testioqword;

  var
     t : text;
     q1,q2 : qword;
     i : longint;

  begin
     assignqword($ffffffff,$a0a0a0a0,q1);
     assign(t,'testi642.tmp');
     rewrite(t);
     writeln(t,q1);
     close(t);
     reset(t);
     readln(t,q2);
     close(t);
     if q1<>q2 then
       do_error(2100);
     { do some random tests }
     for i:=1 to 100 do
       begin
          tqwordrec(q1).high:=random($7ffffffe);
          tqwordrec(q1).low:=random($7ffffffe);
          rewrite(t);
          writeln(t,q1);
          close(t);
          reset(t);
          readln(t,q2);
          close(t);
          if q1<>q2 then
            begin
               write('I/O of ');dumpqword(q1);writeln(' failed');
               do_error(2101);
            end;
       end;
    erase(t);
  end;

procedure teststringqword;

  var
     q1,q2 : qword;
     s : string;
     l : cardinal;
     a : ansistring;
     code : integer;

  begin
     { testing str: shortstring }
     // simple tests
     q1:=1;
     str(q1,s);
     if s<>'1' then
       do_error(2200);
     // simple tests
     q1:=0;
     str(q1,s);
     if s<>'0' then
       do_error(2201);

     // more complex tests
     q1:=4321;
     str(q1,s);
     if s<>'4321' then
       do_error(2202);
     str(q1:6,s);
     if s<>'  4321' then
       do_error(2203);

     // create a big qword:
     q2:=1234;
     l:=1000000000;
     q2:=q2*l;
     l:=54321;
     q2:=q2+l;
     str(q2,s);
     if s<>'1234000054321' then
       do_error(2204);

     { testing str: ansistring }
     // more complex tests
     q1:=4321;
     str(q1,a);
     if a<>'4321' then
       do_error(2205);
     str(q1:6,a);
     if a<>'  4321' then
       do_error(2206);

     // create a big qword:
     q2:=1234;
     l:=1000000000;
     q2:=q2*l;
     l:=54321;
     q2:=q2+l;
     str(q2,a);
     if a<>'1234000054321' then
       do_error(2207);

     { testing val for qword }
     assignqword($ffffffff,$ffffffff,q1);
     s:='18446744073709551615';
     a:=s;
     val(s,q2,code);
     if code<>0 then
       do_error(2208);
     if q1<>q2 then
       do_error(2209);
     val(a,q2,code);
     if code<>0 then
       do_error(2210);
     if q1<>q2 then
       do_error(2211);
     s:='18446744073709551616';
     val(s,q2,code);
     if code=0 then
       do_error(2212);
  end;

procedure testmodqword;

  var
     q0,q1,q2,q3,q4,q5,q6 : qword;
     i : longint;

  begin
     assignqword(0,0,q0);
     assignqword(0,3,q1);
     assignqword(0,5,q2);
     assignqword(0,2,q3);
     assignqword(0,4,q4);
     assignqword(0,1,q5);
     assignqword($ffff,$12344321,q6);
     { to some trivial tests       }
     { to test the code generation }
     if q2 mod q1<>q3 then
       do_error(2300);
     if q2 mod q1 mod q3<>q0 then
       do_error(2301);
     if q2 mod (q1 mod q3)<>q0 then
       do_error(2302);
     if (q1 mod q3) mod q2<>q5 then
       do_error(2303);
     if q1 mod q2<>q1 then
       do_error(2308);

     { a more complex expression }
     if (q2 mod q4) mod (q1 mod q3)<>(q1 mod q3) mod (q2 mod q4) then
       do_error(2304);

     { now test the modulo division procedure with random bit patterns }
     writeln('Doing some random module divisions, takes a few seconds');
     writeln('.................... 100%');
     for i:=1 to NumIterations do
       begin
          tqwordrec(q1).high:=random($7ffffffe);
          tqwordrec(q1).low:=random($7ffffffe);
          tqwordrec(q2).high:=random($7ffffffe);
          tqwordrec(q2).low:=random($7ffffffe);
          { avoid division by zero }
          if (tqwordrec(q2).low or tqwordrec(q2).high)=0 then
            tqwordrec(q2).low:=1;
          q3:=q1 mod q2;
          if (q1-q3) mod q2<>q0 then
            begin
               write('Modulo division of ');
               dumpqword(q1);
               write(' by ');
               dumpqword(q2);
               writeln(' failed');
               do_error(2306);
            end;
          if i mod (NumIterations div 10)=0 then
            write('.');
       end;
     for i:=1 to NumIterations do
       begin
          tqwordrec(q1).high:=random($7ffffffe);
          tqwordrec(q1).low:=random($7ffffffe);
          tqwordrec(q2).high:=0;
          tqwordrec(q2).low:=random($7ffffffe);
          { avoid division by zero }
          if tqwordrec(q2).low=0 then
            tqwordrec(q2).low:=1;
          { get a restless division }
          q3:=q1 mod q2;
          if (q1-q3) mod q2<>q0 then
            begin
               write('Modulo division of ');
               dumpqword(q1);
               write(' by ');
               dumpqword(q2);
               writeln(' failed');
               do_error(2307);
            end;
          if i mod (NumIterations div 10)=0 then
            write('.');
       end;
     writeln(' OK');
  end;

const
   constqword : qword = 131975;

procedure testconstassignqword;

  var
     q1,q2,q3 : qword;

  begin
     // constant assignments
     assignqword(0,5,q2);
     q1:=5;
     if q1<>q2 then
       do_error(2400);

     // constants in expressions
     q1:=1234;
     if q1<>1234 then
       do_error(2401);

     // typed constants
     assignqword(0,131975,q1);
     q2:=131975;
     if q1<>q2 then
       do_error(2402);

     //!!!!! large constants are still missed
  end;

{$Q+}
procedure testreqword;

  var
     q0,q1,q2,q3 : qword;

  begin
     q0:=0;
     assignqword($ffffffff,$ffffffff,q1);
     q2:=1;

     // addition
     try
       // expect an exception
       q3:=q1+q2;
       do_error(2500);
     except
       on eintoverflow do
         ;
       else
       do_error(2501);
     end;
     // subtraction
     try
       q3:=q0-q2;
       do_error(2502);
     except
       on eintoverflow do
         ;
       else
       do_error(2503);
     end;

     // multiplication
     q2:=2;
     try
       q3:=q2*q1;
       do_error(2504);
     except
       on eintoverflow do
         ;
       else
       do_error(2505);
     end;

     // division
     try
       q3:=q1 div q0;
       do_error(2506);
     except
       on edivbyzero do
         ;
       else
       do_error(2507);
     end;

     // modulo division
     try
       q3:=q1 mod q0;
       do_error(2508);
     except
       on edivbyzero do
         ;
       else
       do_error(2509);
     end;
{$Q-}

     // now we do the same operations but without overflow
     // checking -> we should get no exceptions
     q2:=1;

     // addition
     try
       q3:=q1+q2;
     except
       do_error(2510);
     end;
     // subtraction
     try
       q3:=q0-q2;
     except
       do_error(2511);
     end;

     // multiplication
     q2:=2;
     try
       q3:=q2*q1;
     except
       do_error(2512);
     end;

  end;

procedure testintqword;

  var
     q1,q2,q3 : qword;

  begin
     // lo/hi
     assignqword($fafafafa,$03030303,q1);
     if lo(q1)<>$03030303 then
       do_error(2600);
     if hi(q1)<>$fafafafa then
       do_error(2601);
     if lo(q1+1)<>$03030304 then
       do_error(2602);
     if hi(q1+$f0000000)<>$fafafafa then
       do_error(2603);

     // swap
     assignqword($03030303,$fafafafa,q2);
     if swap(q1)<>q2 then
       do_error(2604);

    // succ/pred
    assignqword(0,$1,q1);
    q3:=q1;
    q1:=succ(q1);
    q1:=succ(q1+1);
    q2:=pred(q1-1);
    q2:=pred(q2);
    if q3<>q2 then
      do_error(2605);
    assignqword(0,$ffffffff,q1);
    q3:=q1;
    q1:=succ(q1);
    q1:=succ(q1+1);
    q2:=pred(q1-1);
    q2:=pred(q2);
    if q3<>q2 then
      do_error(2606);
  end;

procedure testcritical;

  var
     a : array[0..10,0..10,0..10] of qword;
     i,j,k : longint;
     d1,d2 : extended;
     q1,q2 : qword;
     i1,i2 : int64;

  begin
     i:=1;
     j:=3;
     k:=5;
     { check if it is handled correct if a register is used }
     { in a reference as well as temp. reg                  }
     a[i,j,k]:=1234;
     a[i,j,k]:=a[i,j,k]+a[i,j,k];
     if a[i,j,k]<>2468 then
       do_error(2700);
     if not(not(a[i,j,k]))<>a[i,j,k] then
       do_error(2701);
     if -(-(a[i,j,k]))<>a[i,j,k] then
       do_error(2702);
     if (a[i,j,k] shl (i-i))<>a[i,j,k] then
       do_error(2703);
     q1:=10;
     q2:=100;
     i1:=1000;
     i2:=10000;
     d1:=q1/q2;
     d2:=i1/i2;
     if (d1<>d2) then
       do_error(2704);
  end;

var
   q : qword;

begin
   randomize;
   writeln('------------------------------------------------------');
   writeln('                    QWord test ');
   writeln('------------------------------------------------------');
   writeln;

   writeln('Testing assignqword and dumpqword ... ');
   assignqword($12345678,$9ABCDEF0,q);
   dumpqword(q);
   writeln;
   writeln('The output should be:');
   writeln('$12345678 9ABCDEF0');
   writeln;

   writeln('Testing simple QWord comparisations');
   simpletestcmpqword;
   writeln('Testing simple QWord comparisations was successful');
   writeln;

   writeln('Testing QWord additions');
   testaddqword;
   writeln('Testing QWord additions was successful');
   writeln;

   writeln('Testing more QWord comparisations');
   testcmpqword;
   writeln('Testing more QWord comparisations was successful');
   writeln;

   writeln('Testing QWord subtraction');
   testsubqword;
   writeln('Testing QWord subtraction was successful');
   writeln;

   writeln('Testing QWord constants');
   testconstassignqword;
   writeln('Testing QWord constants was successful');
   writeln;

   writeln('Testing QWord logical operators (or,xor,and)');
   testlogqword;
   writeln('Testing QWord logical operators (or,xor,and) was successful');
   writeln;

   writeln('Testing QWord logical not operator');
   testnotqword;
   writeln('Testing QWord logical not operator was successful');
   writeln;

   writeln('Testing QWord logical - operator');
   testnegqword;
   writeln('Testing QWord logical - operator was successful');
   writeln;

   writeln('Testing QWord logical shift operators (shr,shr)');
   testshlshrqword;
   writeln('Testing QWord logical shift operators (shr,shr) was successful');
   writeln;

   writeln('Testing QWord function results');
   testfuncqword;
   writeln('Testing QWord function results was successful');
   writeln;

   writeln('Testing QWord type casts');
   testtypecastqword;
   writeln('Testing QWord type casts was successful');
   writeln;

   writeln('Testing QWord internal procedures');
   testintqword;
   writeln('Testing QWord internal procedures was successful');
   writeln;

   writeln('Testing QWord multiplications');
   testmulqword;
   writeln('Testing QWord multiplications was successful');
   writeln;

   writeln('Testing QWord division');
   testdivqword;
   writeln('Testing QWord division was successful');
   writeln;

   writeln('Testing QWord modulo division');
   testmodqword;
   writeln('Testing QWord modulo division was successful');
   writeln;

   writeln('Testing QWord runtime errors');
   testreqword;
   writeln('Testing QWord runtime errors was successful');
   writeln;

   writeln('Testing QWord string conversion');
   teststringqword;
   writeln('Testing QWord string conversion was successful');
   writeln;

   writeln('Testing QWord input/output');
   testioqword;
   writeln('Testing QWord input/output was successful');
   writeln;

   writeln('Some extra tests for critical things');
   testcritical;
   writeln('Extra tests for critical things were successful');

   writeln('------------------------------------------------------');
   writeln('              QWord test successful');
   writeln('------------------------------------------------------');
   writeln;
   writeln('------------------------------------------------------');
   writeln('                    Int64 test ');
   writeln('------------------------------------------------------');
   writeln;

   writeln('------------------------------------------------------');
   writeln('                Int64 test successful');
   writeln('------------------------------------------------------');
   halt(0);
end.