4 ms·
I'm always wondering if there's a legit straight up M1 simulator (including gpu) that runs on x86 inside the bowels of Apple somewhere. Like a 1/3 speed M1 sim
by barkingcat 6y ago
I'm always wondering if there's a legit straight up M1 simulator (including gpu) that runs on x86 inside the bowels of Apple somewhere.
Like a 1/3 speed M1 simulator that runs on a 28 core x86 Mac Pro.
In all the ways of bringing up software/OS's on a platform, there's always someone in the core team who goes for the "write a simulator, and use that to bootstrap the software for the hardware" path.
- lukeh 6y agoWell, Apple has been shipping ARM devices running XNU for the past fourteen years so there’s probably little value in a simulator when they can use real hardware.
- saagarjha 6y agoApple uses simulators for bringup, there are references to a “fastsim” (probably an FPGA?) sprinkled in the open source releases, with special debug instructions encoded as hints (for tracing presumably).
- deleted 6y ago[deleted]