vstack.loadLocal(eContext, disp);
    public final void visit_istore(int index) {        final int disp = stackFrame.getEbpOffset(index);        IntItem i = vstack.popInt();        i.loadIf(eContext, ~Item.CONSTANT);        if (i.getKind() == Item.CONSTANT) {            os.writeMOV_Const(FP, disp, i.getValue());        } else {            os.writeMOV(INTSIZE, FP, disp, i.getRegister());            i.release(eContext);        }    }