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sorry about bitrev thing. i misunderstood.

btw, question about 0x89f80000 is about memory map.

here's question.
any of you guys know about purpose of 0x89f80000~0x89f80040?

I'm finally stuck. The problem is AES Crypto. I've managed to mount flash0, then IPL runs, IPL Loaded encrypted file ("/kd/pspcnf_tbl.txt") then stuck on semaphore which is in IPL. RAM:884013C4 loc_884013C4: # CODE XREF: semaphore+7Cj RAM:884013C4 lw $v0, 0x...

korskarn wrote:bitrev: reverse the bits inside the word, so that bit 0 becomes 31, and bit 31 becomes bit 0, bit 1 becomes 30 and 30 becomes 1, and so on

Thank you.
I just wondering about the rest of bits. What they do for? Register? Imm?
I think they're too much for registers.
Any ideas?

Thanks for the information. What's bitrev? Does it means "Bit Reversal"? And I have no idea about how it works. Anyway, I've been run some tests(ran some opcodes, dump registers and sp area, etc) Following opcodes are what i've found so far, word: bits 32......................................

Hey, guys. I've been spare my little time on psp emu. I was trying to booting emu up with IPL, and program stopped when encountered following strange instructions. I found reference in binutils-psp, it's named as 'mfic' and 'mtic'. Does anyone know about Allegrex specific opcode? (0x70000024, 0x7000...