Parallel-RDP treats values in VRAM as little endian?

[tamaroning]

parallel-rdpにパッチ当てるの大変そう
2:52
vram領域を検出してbyte swapして格納しようかなと思ってるけど、それも少しむずかしい。
2:53
vram領域の始点が毎フレームごとに切り替わるから
2:54
swap chain(vram領域の候補)を検出すればできることにはできる。
@tamaroning

[SimoneN64]

Hello!
I firstly wanted to let you know I really look forward to the development of this emulator and that I appreciate you using my emulator as a reference, even linking to it in the README 😄
Secondly, I can confirm the question posed in the title. Parallel-RDP expects the RDRAM to be in little-endian ordering. What I do is just pass Parallel-RDP a pointer to my rdram and instead byteswap memory accesses, rather than storing it as big-endian.
Hope I was not intrusive and of help!

[tamaroning]

Hello Simone! Thank you for reaching out to me!

What I do is just pass Parallel-RDP a pointer to my rdram and instead byteswap memory accesses, rather than storing it as big-endian.

I think parallel-RDP receives only a pointer to RDRAM but how do you tell parallel-RDP to access RDRAM using byteswap?
I am not sure that parallel-RDP has such an option ...

[tamaroning]

Oh, I might misunderstood.
Kaizen stores data in RDRAM as big-endian and components except RDRAM access it with byte-swapping from little-endian to big-endian.
Am I correct?

[tamaroning]

I tried to make a patch to parallel-RDP so that it treats RDRAM as big-endian.
But I couldn't. I think it is the best option because it is a little confusing to treat RDRAM as something special.

[SimoneN64]

Oh, I might misunderstood.
Kaizen stores data in RDRAM as big-endian and components except RDRAM access it with byte-swapping from little-endian to big-endian.
Am I correct?

If I understood correctly, yes, that's what I do