XOR'ing a register with itself is the idiom for zeroing it out. Why not sub? (devblogs.microsoft.com)

Screenshot of devblogs.microsoft.com: XOR'ing a register with itself is the idiom for zeroing it out. Why not sub?

First screen, captured 6 months ago.

Looks similar

Screenshot of devblogs.microsoft.com: Why is the x86 undefined instruction called ud2? Why 2?

Why is the x86 undefined instruction called ud2? Why 2?(devblogs.microsoft.com)

245 points by ibobev 1 month ago | 57 comments

Screenshot of devblogs.microsoft.com: Why is Windows still tinkering with critical sections? – The Old New Thing

Why is Windows still tinkering with critical sections? – The Old New Thing (devblogs.microsoft.com)

97 points by OptionOfT 1 year ago | 79 comments

Screenshot of devblogs.microsoft.com: The time the x86 emulator team found code so bad they fixed it during emulation

The time the x86 emulator team found code so bad they fixed it during emulation (devblogs.microsoft.com)

465 points by paulmooreparks 4 months ago | 149 comments

Raymond Chen's The Old New Thing post recounting how a Windows x86-32 emulator team, using binary translation, patched badly written application code during emulation.

x86 emulation binary-translation windows

Screenshot of devblogs.microsoft.com: If you're just going to sit there doing nothing, at least do nothing correctly

If you're just going to sit there doing nothing, at least do nothing correctly (devblogs.microsoft.com)

364 points by AndrewDucker 2 years ago | 271 comments

Raymond Chen's Old New Thing blog post on how to implement no-op API stubs correctly, using Windows printing APIs on Xbox as an example.

windows-api api-design the-old-new-thing raymond-chen

Screenshot of devblogs.microsoft.com: What happens when you shift a register by more than the register size?

What happens when you shift a register by more than the register size?(devblogs.microsoft.com)

90 points by signa11 3 years ago | 58 comments

Screenshot of devblogs.microsoft.com: Why are there both TMP and TEMP environment variables? (2015)

Why are there both TMP and TEMP environment variables? (2015)(devblogs.microsoft.com)

186 points by ankitg12 5 months ago | 86 comments