Memory.shtml
#include <windows.h>
#include <stdio.h>
#include <rtapi.h>
void main(void) { BOOL success=0; static PVOID vAddress;// virtual memory address returned LARGE_INTEGER physAddr; // base physical address ULONG length; // length to map in BOOLEAN cacheEnable; // cache accesses to memory ? physAddr.QuadPart = 0x0000FFFFF; length = 1024; cacheEnable = 0; vAddress=RtMapMemory( physAddr, length, cacheEnable); if (vAddress==NULL) { printf("Failure on RtMapMemory( 0x%08X, %d, %d ).\n", physAddr.LowPart, length, cacheEnable ); } else { printf("Success on RtMapMemory( 0x%08X, %d, %d ).\n", physAddr.LowPart, length, cacheEnable ); printf("Virtual memory address = 0x%08X \n", vAddress); success = RtUnmapMemory( vAddress); if (!success) { printf("Failure on RtUnmapMemory( 0x%08X)\t", vAddress); } else { printf("Success on RtUnmapMemory( 0x%08X)\n\n", vAddress); } } ExitProcess(0); }
