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Some nids of sceLoadExec

 
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moonlight



Joined: 26 Oct 2005
Posts: 567

PostPosted: Sun May 07, 2006 7:04 am    Post subject: Some nids of sceLoadExec Reply with quote

0x7b7c47ef = sceKernelLoadExecVSHDiscDebug
0x821be114 = sceKernelLoadExecVSHDiscUpdater

To avoid groepaz kicking me, i have confirmed at least one of them:

sceKernelLoadExecVSHDiscUpdater is exactly the function that the firmware uses to load exec the update from the disc.

I've tried to test sceKernelLoadExecVSHDiscDebug using the typical parameters of a loadexec function, but it returns 28 and does nothing :O

It's a pity that one cannot post anymore results in http://pspdev.ofcode.com/api2.0/ :(

I hope someone puts the true name of LoadExecForKernel_821BE114 in the LoadExecForKernel stub. LoadExecForKernel_7b7c47ef is not even in the stub (maybe because it's a function that doesn't exist in 1.00).
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dot_blank



Joined: 28 Sep 2005
Posts: 498
Location: Brasil

PostPosted: Mon May 08, 2006 6:10 am    Post subject: Reply with quote

i believe that opcode site should be rectified
as its a valuable source for us developers
and is in dire need of an update soon
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TyRaNiD



Joined: 18 Jan 2004
Posts: 918

PostPosted: Mon May 08, 2006 6:25 am    Post subject: Reply with quote

This is of course why we have always had libdoc in subversion :)
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dot_blank



Joined: 28 Sep 2005
Posts: 498
Location: Brasil

PostPosted: Mon May 08, 2006 6:33 am    Post subject: Reply with quote

yes of course but a site is much easier :)
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jimparis



Joined: 10 Jun 2005
Posts: 1179
Location: Boston

PostPosted: Mon May 08, 2006 9:27 am    Post subject: Reply with quote

A big problem with libdoc is that it makes no distinction among firmware versions. A min/max version entry should probably be included.
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[wl]



Joined: 05 May 2006
Posts: 16

PostPosted: Tue May 09, 2006 4:22 am    Post subject: Reply with quote

how do u think, is it possible to understand, how to decrypt uploader.psp file from eboot.pbp updater using reverse engineering of sceKernelLoadExecVSHDiscUpdater function?
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moonlight



Joined: 26 Oct 2005
Posts: 567

PostPosted: Tue May 09, 2006 4:42 am    Post subject: Reply with quote

[wl] wrote:
how do u think, is it possible to understand, how to decrypt uploader.psp file from eboot.pbp updater using reverse engineering of sceKernelLoadExecVSHDiscUpdater function?


This function is only to execute the updater (well, it probably can execute othet things)

To decrypt the data.psp of an updater, you can use any psar dumper mod like the mph decryptor or the aenea's one.
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