Recent content by perfect_genius

I just asked the author of DobieStation, he knows little about USB.

There is very little about USB in this analysis: psi-rockin.github.io/ps2tek/ IOP Interrupts: 22 IRQ22 USB IOP DMA: 24-27 Channel 'U' (USB DMA, controlled through USB registers) Does anyone know what these registers are? How does USB work at a low level?

It turns out that research is needed here. I wrote a program to read a file from two USBs, and yes - the speed dropped by half. One person suggested that I run a read on two threads, but PS2 threads are cooperative, not parallel, right? As a result, now I will go to low-level access, the USB driver.

But why? Because the IOP will have to constantly switch between ports? But what about the ability of MIPS to execute several instructions in parallel?

I'm new to PS2 development and have read a lot of information but haven't found anything about reading from two USB sticks at the same time. In theory, this would double the reading speed. Also, the ps2sdk repository is hard to understand on the topic of USB.

Have you tried software renderer?