The Old New Thing

The Alpha AXP, epilogue: A correction about file system compression on the Alpha AXP

August 31, 2017 Aug 31, 2017 08/31/17

Raymond Chen

Setting the record straight, even though the lie has already circumnavigated the world.

The Alpha AXP, part 17: Reconstructing a call stack

August 30, 2017 Aug 30, 2017 08/30/17

Raymond Chen

Putting the information into practice.

The Alpha AXP, part 16: What are the dire consequences of having 32-bit values in non-canonical form?

August 29, 2017 Aug 29, 2017 08/29/17

Raymond Chen

It depends on what the next calculation is.

The Alpha AXP, part 15: Variadic functions

August 28, 2017 Aug 28, 2017 08/28/17

Raymond Chen

Keeping two sets of books that eventually become one.

The Alpha AXP, part 14: On the strange behavior of writes to the zero register

August 25, 2017 Aug 25, 2017 08/25/17

Raymond Chen

Room for future optimization.

The Alpha AXP, part 13: On treating a 64-bit processor as if it were a 32-bit processor

August 23, 2017 Aug 23, 2017 08/23/17

Raymond Chen

It's all in the point of view.

The Alpha AXP: Part 12: How you detect carry on a processor with no carry?

August 22, 2017 Aug 22, 2017 08/22/17

Raymond Chen

The same way you do it in C, which also doesn't have a carry.

The Alpha AXP, part 11: Processor faults

August 21, 2017 Aug 21, 2017 08/21/17

Raymond Chen

Sometimes you know where it happened. Sometimes you don't.

The Alpha AXP, part 10: Atomic updates to byte and word memory units

August 18, 2017 Aug 18, 2017 08/18/17

Raymond Chen

Putting together some things we've learned.