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Diffstat (limited to 'win32/readme.a64')
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diff --git a/win32/readme.a64 b/win32/readme.a64 new file mode 100644 index 0000000..54b2750 --- /dev/null +++ b/win32/readme.a64 @@ -0,0 +1,42 @@ +readme.x64 +========== + +[Note - the gvmat64.asm longest_match routine in Windows 64-bit assembler +and makefile.a64 used to compile it were provided at the last minute and +are currently untested by Info-ZIP. They are provided to allow testing of +this optimization which is planned for inclusion in Zip 3.0. +USE AT YOUR OWN RISK. That said, thanks Gilles for providing this +optimization and we plan to better support it in Zip 3.0. 2/28/2005 EG] + +makefile.asm64 is a makefile for 64 bits optimized version of zip for +Microsoft Windows running on AMD64 (Athlon64/Opteron) and Intel EM64T +(the Pentium 4 and Xeon with 64 bits extension) + +makefile.asm64 contain a makefile for 64 Microsoft C++ for Windows 64 bits, +extended edition (for both AMD64 and Intel EM64T), included in Visual +Studio 2005 + +to compile it, start the C++ AMD64 build environnement prompt, +go to the zip source directory and start + + nmake -a -f makefile.a64 + +This makefile uses gvmat64.asm, which is the optimized longest_match written +in assembly code for AMD64/Intel EM64T + +gvmat64.asm was tested by Gilles Vollant on AMD64 with infozip, and also tested +with a lot of file with zLib 1.2.2 on both AMD64 and Intel EM64T processor. + +It was written by Gilles Vollant, by modifiying the longest_match +from Jean-loup Gailly in deflate.c of zLib and infoZip zip. +and modifying asm686 (1998), optimised assembly code from Brian Raiter, +(see http://www.muppetlabs.com/~breadbox/software/assembly.html) + + +Gilles Vollant +info@winimage.com + +http://www.winimage.com +http://www.winimage.com/zLibdll + + |