* reset subregister before writing mm register names

git-svn-id: trunk@8846 -

compiler/x86/cpubase.pas

@@ -451,6 +451,8 @@ implementation
       var
         p : tregisterindex;
       begin
+        if getregtype(r) in [R_MMREGISTER,R_MMXREGISTER] then
+          r:=newreg(getregtype(r),getsupreg(r),R_SUBNONE);
         p:=findreg_by_number_table(r,regnumber_index);
         if p<>0 then
           result:=std_regname_table[p]