Uni-North port - Githubissues

Wack0 / maciNTosh

PowerPC Windows NT ported to Power Macintosh systems

GNU General Public License v2.0

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Uni-North port #32

Open Wack0 opened 1 month ago

Wack0 commented 1 month ago

[x] fix inc/runtime.h for handling MSR_LE on an otherwise big endian system
[x] port loader and ARC firmware
[x] modify halunin for running in pseudo-little endian mode (as opposed to big endian with an emulator in place)
[x] rebuild drivers with the new runtime.h for supporting pseudo-little endian mode
[x] add functionality to offrmbuf.sys for handling pixel-swapped framebuffer in textmode setup
[x] fork framebuf.dll from NT DDK and add functionality for dealing with the pixel-swapped framebuffer
[x] initial bringup installing and booting on real hardware (iBook G3 Snow)
[x] modify loader/ARC/HAL to obtain PCI interrupt vectors from the Open Firmware device tree
[ ] add HAL functionality for dealing with DMA in pseudo-little endian mode
[ ] add HAL functionality to hook various driver/etc exports so existing PCI PPC drivers can work
[ ] USB drivers (for uni-north desktop support, basically required)

leandrofriedrich commented 1 month ago

👀 once uninorth is somewhat ready on g3, how much work is needed for g4 support? how different are they going to be?

Wack0 commented 1 month ago

people already have nt working on yikes systems and G4-upgraded yosemite systems

Wack0 commented 1 month ago

slight usb driver progress in arc firmware:

first two usb control messages are being transferred correctly, the third one causes the ohci controller to clobber the endpoint descriptor memory. i had this problem on lombard where it was related to memory alignment. not sure what the issue here is.

Wack0 commented 1 month ago

I added preliminary support (ARC firmware driver + grab base address from open firmware device tree in loader) for the kawai(etc) ATA/100 controller, but i have no way to test due to having no systems with it.

I'll need to add support to atapimio.sys for these controllers (they're basically same as mac i/o IDE, just on their own PCI device with their own DBDMA register space too), but after that, assuming everything works, it would be enough for a preliminary release that should support all uninorth laptops.

JannGold commented 3 weeks ago

Will this work on Sawtooth G4 models once it is ported? I think those are Uni-North.

jlj945 commented 3 weeks ago

Will this work on Sawtooth G4 models once it is ported? I think those are Uni-North.

It should work on just about every uni-north machine. The problem with desktops is USB would need to be solved since none of them use ADB.