Author Topic: PMIO(port-mapped I/O) x64  (Read 5004 times)

Offline shaynox

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PMIO(port-mapped I/O) x64
« on: January 16, 2015, 04:26:33 PM »

3-Volume 2B Instruction Set Reference, N-Z (chap OUT)

Is it normal in these intel doc, it's wrote, 64-bit mode valid ?

Like i learned, it's impossible to do this in x64 OS windows or own OS, so who say the truth ?

And i think of driver (dll) using in windows (gdi32.dll, ..), they use PMIO or MMIO for dialog with hardware (video card).