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anecdotes:not_expected_to_understand_this [2016/01/12 10:32] – wktanecdotes:not_expected_to_understand_this [2016/01/23 10:38] – wkt
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      */      */
     if(rp->p_flag&SSWAP) {     if(rp->p_flag&SSWAP) {
-   rp->p_flag =& ~SSWAP;+        rp->p_flag =& ~SSWAP;
         aretu(u.u_ssav);         aretu(u.u_ssav);
     }     }
Line 44: Line 44:
  
 So, for Steve Johnson and me, trying to move the kernel for the first time to a new machine, this code was indeed on the exam. It took about a week of agonizing before we finally convinced each other that the mechanism was wrong and no fiddling with the compiler was useful. We redid the coroutine control-passing primitives altogether, and this code section, and the comment, passed into history. So, for Steve Johnson and me, trying to move the kernel for the first time to a new machine, this code was indeed on the exam. It took about a week of agonizing before we finally convinced each other that the mechanism was wrong and no fiddling with the compiler was useful. We redid the coroutine control-passing primitives altogether, and this code section, and the comment, passed into history.
 +
 +Also see [[https://www.youtube.com/watch?v=uxtKwJZbYr0|Brian Kernighan's tribute to Dennis Ritchie]] around the 4:20 mark.
  
anecdotes/not_expected_to_understand_this.txt · Last modified: 2022/07/08 09:22 by 192.99.0.24