case OP_RETURN:
            goto execFinished;

         case OP_LOADVAR_UINT:
            intStack[UINT+1] = gEvalState.getIntVariable();
            UINT++;
            break;

         case OP_LOADVAR_FLT:
            floatStack[FLT+1] = gEvalState.getFloatVariable();
            FLT++;
            break;

         case OP_LOADVAR_STR:
            val = gEvalState.getStringVariable();
            STR.setStringValue(val);
            break;

         case OP_STR_TO_NONE:
            // This exists simply to deal with certain typecast situations.
            break;
         case OP_PUSH:
            STR.push();
            break;
         case OP_INVALID: