6c2930289c This computer science article is a stub. On first call, EBX should be set to 0. Please help improve this article by adding citations to reliable sources. Some of the available routines are:. It contains the information regarding the size of total memory, any reserved regions and may also provide other details specific to the architecture. This BIOS interrupt call is used by the running OS to get the memory size for 64MB+ configurations. If no error, the interrupt call returns with CF clear and the buffer filled with data representing first region of the memory map.
It is the fastest and most flexible cache organization which uses an associative memory. BIOS Function: INT 0x15, AX=0xE820 - GET SYSTEM MEMORY MAP [2]:. SMAP buffer structure:. This scheme shows 200 kB of memory, of which only 64 kb can be accessed at any time by the processor. BIOS Memory map[edit]. ^ "15E820". EDX 0x534D4150 (ASCII for 'SMAP') ES:DI segment:offset location of the buffer for result. ECX Size of buffer for result (20 bytes). How used: The operating system shall allocate an SMAP buffer in memory (20 bytes buffer).
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