There is a side note on the side of Yerushalmi Terumos 7:2 “עיין במגלת ספר לאוין רנ׳׳ח מש׳׳כ בזה באורך”. I cannot find this sefer anywhere. It appears to be an explanation of the סמ׳׳ג, but I haven't found it. Does anyone know what it is and where I can get it?