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As a separate execution unit on a small ASIC on the motherboard. Its been a long time since I had a G4 silver, but I know its there.. I think it was called "Orca" with all the information floating around the web I was hoping to find something on this to hack with. If you have a G4 silver check...

Your are correct Altivec is used in the G4, but Apple built a dedicated ASIC for media processing which was compatible with Altivec instructions. I was just curious if there was any information out there on this ASIC.

Some reading for the week, printer is off and running. Thanks!

I remember Stephanie, I am pretty sure she was the person at Apple that was sending me the API information on the QD3D interface.

Years ago I figured out that there was a hardware programmable Altivec unit on the G4 series, it was integer only but it was definitely shipped on the G4 silver as it showed up IOReg. One of the hardware engineers at Apple verified my findings but didn't have any information on it other than it...

Found it.. Hardware Accelerated Rendering Of Antialiasing Using A Modified A-buffer Algorithm https://dl.acm.org/doi/pdf/10.1145/258734.258872 I remember reading this ages ago.

" Most of the 3D Developers were already working at their new employers at that time (3Dfx, Bungee, SGI)." One of my friends was working at Synopsis at the time on timing and placement of a 3Dfx ASIC... he said there was Apple Verilog code mixed in with the 3Dfx code.. which was later absorbed...

Can you point me to the PDF from the SIGGRAPH on the accelerator? I remember working from the Tinsel Town spec ages ago, I was always curious on the workings of the QD 3D card.

I have a few mac's just not this old... the oldest Mac I have is a 2008 which is no longer supported by Apple (works just fine though)

Hello all, Well my Mac Iici arrived yesterday, its up and running with 12 MB of memory and a 80 MB drive with the original OS 7.0 ? or something on it. (the speaker doesn't work but I will debug that today with the O-scope) Now the question is how to move forward to bring it up to 7.5.x and...

Hello all, I was able to purchase a MacII ci on eBay, now I need to figure out where to start again. It's just a base MacII ci with a mouse, no keyboard, no display, no networking... Can I get a recommended development setup for hacking? (most likely for NuBus card development) Are the Inside...