The memory model

Alexandre Julliard julliard at
Tue Mar 12 12:56:22 CST 2002

Duane Clark <dclark at> writes:

> This all comes about because the newest Xilinx software says that to
> use their newest large devices, a computer needs a minimum of 3GB to
> run place and route! Apparently Windows allocates 2GB to user space
> and Linux allocates 3GB (just repeating what has been said by others
> there). It was mentioned that perhaps running the tools under
> Linux/wine might allow the tools to have access to the full 3GB
> available under Linux.

In theory yes; however I think at this point Wine will only use 2Gb,
because we are using mmap() to allocate memory and the mmap area
starts at the 1Gb mark on Linux. It shouldn't be too hard to work
around this limitation, I will give it a try.

Alexandre Julliard
julliard at

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