how to convert p code to m-file
in [Matlab]
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From: mat001 on 11 Feb 2010 04:46 "Steve Amphlett" <Firstname.Lastname(a)Where-I-Work.com> wrote in message <hkujc1$a4f$1(a)fred.mathworks.com>... > "mat001 " <priya.biomath(a)gmail.com> wrote in message <hkuef1$i8m$1(a)fred.mathworks.com>... > > "Saravanan Mani" <saravanan.ms55(a)gmail.com> wrote in message <hku6sk$e9q$1(a)fred.mathworks.com>... > > > I need to convert p-file in own source m-file, are there some methods? > > > > > > You can not convert p to m in principle. pcode just a protection layer over the m files. > > protection layer not code. > > Do not try better to ask the person if you really need his code. > > Not strictly true. It's not a layer OVER the m-files. They're history and cannot be reconstructed. what do u mean by history here? can you explain little more.
From: Steve Amphlett on 11 Feb 2010 04:57 "mat001 " <priya.biomath(a)gmail.com> wrote in message <hl0jks$61v$1(a)fred.mathworks.com>... > "Steve Amphlett" <Firstname.Lastname(a)Where-I-Work.com> wrote in message <hkujc1$a4f$1(a)fred.mathworks.com>... > > "mat001 " <priya.biomath(a)gmail.com> wrote in message <hkuef1$i8m$1(a)fred.mathworks.com>... > > > "Saravanan Mani" <saravanan.ms55(a)gmail.com> wrote in message <hku6sk$e9q$1(a)fred.mathworks.com>... > > > > I need to convert p-file in own source m-file, are there some methods? > > > > > > > > > You can not convert p to m in principle. pcode just a protection layer over the m files. > > > protection layer not code. > > > Do not try better to ask the person if you really need his code. > > > > Not strictly true. It's not a layer OVER the m-files. They're history and cannot be reconstructed. > > what do u mean by history here? > can you explain little more. I mean that the donor m-file cannot be reconstructed or extracted. It's a one-way trip.
From: Jan Simon on 11 Feb 2010 08:37 Dear Saravanan! > I need to convert p-file in own source m-file, are there some methods? You can inspect the contents of a P-file and the communication with other functions using the debugger of Matlab. For P-files of Matlab 6 there are some further techniques to get the contents of the original file, but for the modern Matlab versions the P-files are encrypted. The main problem is usually the conflict with the license conditions of the program! In every case, digging in a P-code takes usually much more time and knowhow than re-programming it! So my first approach would be to offer 1000$ (or more) to the author to send me the M-file. If it is not worth to spend this money, forget it. Kind regards, Jan
From: Steven Lord on 11 Feb 2010 09:58
"Steve Amphlett" <Firstname.Lastname(a)Where-I-Work.com> wrote in message news:hl0k9e$gso$1(a)fred.mathworks.com... > "mat001 " <priya.biomath(a)gmail.com> wrote in message > <hl0jks$61v$1(a)fred.mathworks.com>... >> "Steve Amphlett" <Firstname.Lastname(a)Where-I-Work.com> wrote in message >> <hkujc1$a4f$1(a)fred.mathworks.com>... >> > "mat001 " <priya.biomath(a)gmail.com> wrote in message >> > <hkuef1$i8m$1(a)fred.mathworks.com>... >> > > "Saravanan Mani" <saravanan.ms55(a)gmail.com> wrote in message >> > > <hku6sk$e9q$1(a)fred.mathworks.com>... >> > > > I need to convert p-file in own source m-file, are there some >> > > > methods? >> > > >> > > >> > > You can not convert p to m in principle. pcode just a protection >> > > layer over the m files. >> > > protection layer not code. >> > > Do not try better to ask the person if you really need his code. >> > >> > Not strictly true. It's not a layer OVER the m-files. They're history >> > and cannot be reconstructed. >> >> what do u mean by history here? >> can you explain little more. > > I mean that the donor m-file cannot be reconstructed or extracted. It's a > one-way trip. Assuming you overwrite or delete the existing M-file explicitly after generating the P-file, that's correct. However, if you call it on its own PCODE creates a new file with the extension .p and so your existing file is fine. >> ls .. mytestfcn.m ... >> pcode mytestfcn.m >> ls .. mytestfcn.m ... mytestfcn.p -- Steve Lord slord(a)mathworks.com comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ |