how do you convert this to MASM
type
bignum:
union
tot :qword;
record
lo :dword;
hi :dword;
endrecord;
endunion;
he's using it like
qwFileSize :bignum;
I think it should be something like the LARGE_INTEGER union from the MASM32 windows.inc:
LARGE_INTEGER UNION
STRUCT
LowPart DWORD ?
HighPart DWORD ?
ENDS
QuadPart QWORD ?
LARGE_INTEGER ENDS
thanks, yeah I just found that second before you pasted actually, the qwords are in different spots, does that matter?
For a union the order should not matter.
alright thanks a lot MichaelW the purpose of this is i'm converting evenbits "Mem Map files up to 18 exabytes" example, as I feel this functions long overdue and is really useful. Most people think they can just map a view of an entire multi gig file and that's OK, but that's definitely not the way to do it, and ReadFile in a loop is bad too as I/O is slow and takes a toll on the hardware for many reads. Though I wonder if thats faster than unmapview and remaping another view in the loop as this code does, which I know gives you a speed penality. Guess i'll have to speed test after to see using your macros :) oh btw not that it's in your control but your speed testing code definitely can be dangerous, I learned that the hard way by setting the loopcount too high, and consider the processes priority.