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| PS1 SPU RAM || 0x9F402C0 || 0x80000 || Also accessed by 0x49F40000 mirror (uncached mode).
| PS1 SPU RAM || 0x9F402C0 || 0x80000 || Also accessed by 0x49F40000 mirror (uncached mode).
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| PS1 SPU Emulator || 0x00 || 0x19E0 || Offset for disassemblers, not valid psp addr. Emulator on init use pointer to this SPU emu as first param and 0x9FF8000 as second param, using nid sceMeAudio 0xDE630CD2 function. I can only guess that is sending emulator to MediaEngine, and map some kind of memory region (maybe just $sp as emu never sets it on start).
| PS1 SPU Emulator || 0x00 || 0x19E0 || Emulator on SPU init do something with pointer to emu as first param and 0x9FF8000 as second param, using fnid sceMeAudio 0xDE630CD2 function. I can only guess that is sending emulator to MediaEngine, and map some kind of memory region (maybe just $sp as emu never sets it on start).
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| PS1 HW Registers (from 0x1F801000) || 0x12000 || 0x1000 || There are many exceptions here for addresses that need special handling, for example ps1 gpu registers are not there, same for mdec.
| PS1 HW Registers (from 0x1F801000) || 0x12000 || 0x1000 || There are many exceptions here for addresses that need special handling, for example ps1 gpu registers are not there, same for mdec.
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