* initial release

tests/test/testmmx.pp

@@ -0,0 +1,84 @@
+{ this contains currently only a basic test of mmx support }
+{ the following instructions are tested:
+   PSUBW
+   PSUBUSW
+   PADDW
+   PADDUSW
+}
+uses
+   mmx;
+
+procedure do_error(l : longint);
+
+  begin
+     writeln('Error near number ',l);
+     halt(1);
+  end;
+
+function equal(const v1,v2 : tmmxword) : boolean;
+
+  var
+     i : integer;
+
+  begin
+     equal:=false;
+     for i:=0 to 3 do
+       if v1[i]<>v2[i] then
+         exit;
+     equal:=true;
+  end;
+
+procedure testmmxword;
+
+  var t1,t5 : tmmxword;
+
+  const
+     c0 : tmmxword = (0,0,0,0);
+     c1 : tmmxword = (1,1,1,1);
+     c2 : tmmxword = (1234,4321,1111,33333);
+     c3 : tmmxword = (1234,4321,2222,11111);
+     c4 : tmmxword = (2468,8642,3333,44444);
+     c5 : tmmxword = ($ffff,$ffff,$ffff,$ffff);
+
+  begin
+     {$mmx+}
+     { Intel: paddw }
+     t1:=c2+c3;  
+     if not(equal(t1,c4)) then
+       do_error(1000);
+
+     { Intel: psubw }
+     t5:=t1-c2;
+     if not(equal(t5,c3)) then
+       do_error(1001);
+     t1:=not(c0);
+
+     { does a not }
+     if not(equal(t1,c5)) then
+       do_error(1002);
+
+     { test the saturation }
+     {$saturation+}
+     t1:=c5+c2+c3;
+     if not(equal(t1,c5)) then
+       do_error(1003);
+
+     t1:=c4-c5-t1;
+     if not(equal(t1,c0)) then
+       do_error(1004);
+     {$saturation-}
+  end;
+
+begin
+   if not(is_mmx_cpu) then
+     begin
+        writeln('!!!! Warning: You need a mmx capable CPU to run this test !!!!');
+        halt(0);
+     end;
+   writeln('Testing basic tmmxword support');
+   testmmxword;
+   writeln('Test succesful');
+   writeln;
+end.   
+
+