after fixing some usb driver bugs (this ohci controller expects buffers to be 4K aligned), setupapp somehow runs this far without patches???

rairii@labyrinth.zone

after fixing some usb driver bugs (this ohci controller expects buffers to be 4K aligned), setupapp somehow runs this far without patches??? i was expecting it to crash and was *trying* to test the exception handler...

mittorn@masturbated.one

@Rairii will be userspace useful without FPU?

a1ba@suya.place

@mittorn @Rairii wiki says minimal requirement of 3.1 is 80386 which didn't had FPU

rairii@labyrinth.zone

@a1ba @mittorn this is MIPS. even the very early build of NT for R3000 expected an FPU to be present.

a1ba@suya.place

@Rairii @mittorn welp, I hoped that requirements might be similar between x86 and MIPS NT ports

rairii@labyrinth.zone

@a1ba @mittorn MIPS NT requires an FPU so much, the memset and memcpy implementations use it, which is why I was expecting unpatched setupapp to crash

a1ba@suya.place

@Rairii @mittorn that's oddly interesting, what's the point of using FPU instructions in mem{set,cpu}?

rairii@labyrinth.zone

@a1ba @mittorn using load/store double instructions to read/write 64 bits at a time

a1ba@suya.place

@Rairii @mittorn oh that makes sense if 64-bit integers isn't part of the main ISA, they did ld/st instructions in FPU due to double precision types...

a1ba@suya.place

@Rairii @mittorn thanks, didn't knew about it.

NodeBB

after fixing some usb driver bugs (this ohci controller expects buffers to be 4K aligned), setupapp somehow runs this far without patches???