The thesis recounts the realization of the boundary tag method and the buddy system allocator method , which had been improved . a dynamic memory management method using multilevel bitmap catalogue structure is introduced in the paper . a detailed description of the structure of multilevel bitmap catalogue as well as algorithms using multilevel bitmap catalogue is given 詳細闡述了對邊界標(biāo)識法,伙伴系統(tǒng)算法改進后的具體實現(xiàn);介紹了一個用多級位示圖目錄來實現(xiàn)存儲資源動態(tài)分配的算法,給出了多級位示圖目錄的結(jié)構(gòu)和相應(yīng)的算法,并詳細介紹了一個二級位示圖目錄的具體實現(xiàn)過程。