Leaked source code of windows server 2003
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#define IcacheLineSize 32
void __fc (__int64); #pragma intrinsic (__fc)
void PioICacheFlush ( unsigned char *BaseAddress, unsigned int Length ) { unsigned char *EndAddress; unsigned long NumberOfLines;
if (Length < IcacheLineSize) { Length = IcacheLineSize; } NumberOfLines = Length / IcacheLineSize;
if (Length % IcacheLineSize != 0) { NumberOfLines = NumberOfLines+1; }
EndAddress = (unsigned char *)(BaseAddress)+(NumberOfLines * IcacheLineSize); do { __fc((__int64)BaseAddress); BaseAddress += IcacheLineSize; } while (BaseAddress < EndAddress);
__synci(); __isrlz(); }
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