Hi,
I need to access a region of real memory from a QNX app. I make a real mode
interrupt call via _intr_v86 which returns a 16bit location in ES:DI. I
then need to access a number of bytes from that location.
Can anyone point me towards a function that can copy from real to protected
mode? or suggest a method of achieving this?
Many Thanks,
Paul
“Paul Wakefield” <paul.wakefield@lidco.com> wrote in message
news:e424en$npf$1@inn.qnx.com…
Hi,
I need to access a region of real memory from a QNX app. I make a real
mode interrupt call via _intr_v86 which returns a 16bit location in ES:DI.
I then need to access a number of bytes from that location.
Can anyone point me towards a function that can copy from real to
protected mode? or suggest a method of achieving this?
You need to mmap() the physical address.
Many Thanks,
Paul