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[steddy]

How much of the PSP Memory map is now known? I see the KDumper dumps the following ranges:-

0xBFC00000 -> 0xBFD00000
0x88000000 -> 0x883FFFFF

How were these two ranges chosen, and what does the rest look like? Given these are only 4mb and 1mb in size, and the ROM and RAM are both 32mb, what about the rest.

Do ROM modules execute in place, or are they all loaded into RAM?

Finally, is there a way to extract the PRX files from memory to recreate the ELF? Is there enough information present once loaded to do that?

Thanks
Steddy

[TyRaNiD]

Well ROM doesn't seem to be directly mapped. RAM is from 0x08000000 -> 0x09FFFFFF although the first four megs is only accessible as kernel addresses. There are also some hardware regs in the 0xBxxxxxxx ranges. That is about all I know.

[steddy]

Thanks, but that doesn't seem to tie up with what KDumper is dumping.

It is dumping 0x88000000, not 0x08000000.

I have a 2gb Duo coming next week so will be able to dump pretty big ranges :)

Steddy

[TyRaNiD]

Do you know nothing about the MIPS architecture ?

[steddy]

I guess from the tone of your question, probably very little.

[Vampire]

[steddy]

Excellent information Vampire and just what I was looking for.

Thanks
Steddy

[Vampire]

the 2MB VRAM are located from 0x04000000 to 0x041FFFFF:

sceGeEdramGetAddr() returns 0x04000000
sceGeEdramGetSize() returns 0x00200000