The Old New Thing

The AArch64 processor (aka arm64), part 16: Conditional execution

August 17, 2022 Aug 17, 2022 08/17/22

Raymond Chen

Making decisions.

Janet Jackson had the power to crash laptop computers

August 16, 2022 Aug 16, 2022 08/16/22

Raymond Chen

Not an artistic judgement. Just a technical one.

The AArch64 processor (aka arm64), part 15: Control transfer

August 15, 2022 Aug 15, 2022 08/15/22

Raymond Chen

We're going places.

The AArch64 processor (aka arm64), part 14: Barriers

August 12, 2022 Aug 12, 2022 08/12/22

Raymond Chen

Keeping things in the right order.

The AArch64 processor (aka arm64), part 13: Atomic access

August 11, 2022 Aug 11, 2022 08/11/22

Raymond Chen

Don't let someone else get a word in edgewise.

The AArch64 processor (aka arm64), part 12: Memory access and alignment

August 10, 2022 Aug 10, 2022 08/10/22

Raymond Chen

The load and store part of the load/store architecture.

The AArch64 processor (aka arm64), part 11: Loading addresses

August 9, 2022 Aug 9, 2022 08/9/22

Raymond Chen

Finding a needle in the haystack of the 64-bit address space.

The AArch64 processor (aka arm64), part 10: Loading constants

August 8, 2022 Aug 8, 2022 08/8/22

Raymond Chen

Getting them into a register.

The AArch64 processor (aka arm64), part 9: Sign and zero extension

August 5, 2022 Aug 5, 2022 08/5/22

Raymond Chen

Nothing new here, but old things being used in clever ways.

The AArch64 processor (aka arm64), part 8: Bit shifting and rotation

August 4, 2022 Aug 4, 2022 08/4/22

Raymond Chen

Sliding around.