各位大大:    小弟遇到一個問題, 請幫忙看看.  如主題, 我遇到的問題是, WinIO 在 direct access memory 時, 是否有 memory address 的上限的限制, 因為我只要輸入高一點的 memory address, 像是 0xF0000134 , 傳回來的值都是 0x100 真的很怪, 在低一點的位置傳回來的值又是對的, 像 0x00090000.     

#include #include #include #pragma argsused int main(int argc, char* argv[]) { DWORD dwPortVal; DWORD dwMemVal; bool bResult; HANDLE hPhysicalMemory; PBYTE pbLinAddr; unsigned long MemValue[1000]; unsigned int i,k; unsigned long BeginAddress; unsigned int Length; printf ("Please input BeginAddress: "); scanf ("%X",&BeginAddress); printf ("Please input Length: "); scanf ("%x",&Length); bResult = InitializeWinIo(); // Initialize WinI/O if (bResult) { for (i=0; i<=Length; i =4) { GetPhysLong((PBYTE)BeginAddress i, &dwMemVal); MemValue[i]= dwMemVal; printf ("MemAddress=X, MemValue=X \n",BeginAddress i,MemValue[i]); } } else { printf ("Error during initialization of WinI/O.\n"); return 1; } ShutdownWinIo(); getchar(); getchar(); return 0; } ---------- Jeff

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Jeff