Since the early 2000s, the potential for upgrading the CPU in the Silicon Graphics O2 with a 900 MHz RM7900 has been blocked by the inability to modify the PROM firmware. To that end, I built ip32prom-decompiler, a program that decompiles t…
GNOME 40 was released at the end of March, and yesterday I added the last bits of it to Gentoo. You may not think that's fast, and you'd be right, but it's a lot faster than any GNOME release has been added to Gentoo that I can recall. I wa…
On Intel's Gen graphics, three source instructions like MAD and LRP cannot have constants as arguments. When support for MAD instructions was introduced with Sandybridge, we assumed the choice between a MOV+MAD and a MUL+ADD sequence was in…
In November I was lamenting the lack of selection in credible Haswell-powered laptops for Mesa development. I chose the 15" MacBook Pro, while coworkers picked the 13" MBP and the System76 Galago Pro. After using the three laptops for a few…
When I started at working at Intel last year on the open source 3D driver I was given a spare Lenovo T420s (Sandybridge) as my development machine. Almost everyone on my team had upgraded to Ivy Bridge by February, but I planned just to hol…