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TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

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Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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    1. Tim Sweeney‏ @TimSweeneyEpic May 24
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      Can anyone share the origin of the Windows naming convention (using PascalCase for functions, and some UPPERCASE_WITH_UNDERSCORES for types)? This came before Dave Cutler and appears to even be pre-Simonyi. @BillGates? https://en.wikipedia.org/wiki/Windows_1.0 …

      18 replies 13 retweets 144 likes
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    2. Bert van 't Veer‏ @bertveer_com May 24
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      Replying to @TimSweeneyEpic @BillGates

      I like to tell myself the story that Windows was originally written in Turbo Pascal.

      1 reply 0 retweets 3 likes
      Tim Sweeney‏ @TimSweeneyEpic May 24
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      Replying to @bertveer_com @BillGates

      The 16-bit Windows APIs used the __pascal calling convention. Was Pascal the intended Windows platform language at some point in the early 1980’s, before C was predominant?

      1:27 PM - 24 May 2020
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        1. Dan Baker‏ @dankbaker May 26
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          Replying to @TimSweeneyEpic @bertveer_com @BillGates

          No, pascal calling convention was used because its more efficient at the time, because of how the stack clean up worked you could make multiple calls with the same stack. I think the one to ask about this is probably Mike Abrash. I

          0 replies 0 retweets 2 likes
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        1. Marek Knápek‏ @MarekKnapek May 24
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          Replying to @TimSweeneyEpic @bertveer_com @BillGates

          I believe the __pascal calling convention saved them one disc for shipping because the way how the stack gets prepared and cleaned. But I might be wrong. Of course, Raymond Chen has article about this: https://devblogs.microsoft.com/oldnewthing/20040102-00/?p=41213 …

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        2. Bert van 't Veer‏ @bertveer_com May 24
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          Replying to @TimSweeneyEpic @BillGates

          That's what I'm guessing but I've never been able to find a definitive answer.

          1 reply 0 retweets 0 likes
        3. Bert van 't Veer‏ @bertveer_com May 24
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          Replying to @bertveer_com @TimSweeneyEpic @BillGates

          They were developing a compiler in 1980 so it seems plausible: https://en.wikipedia.org/wiki/Microsoft_Pascal …

          0 replies 0 retweets 0 likes
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        1. Michael Haufe‏ @mlhaufe May 24
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          Replying to @TimSweeneyEpic @bertveer_com @BillGates

          @ChenCravat may know. He wrote a series on this:https://devblogs.microsoft.com/oldnewthing/20040102-00/?p=41213 …

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