Author: Russell Reagan
Date: 21:48:21 07/18/02
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On July 18, 2002 at 20:04:46, Robert Hyatt wrote: >You really have to test. And then test again in a few months after your >code is more complex and "register jams" or "register spills" become a >problem.. Could you explain what these things are? Register jams and spills. Also, to be able to competently look at the ASM that is generated, how much do I need to learn? Is it enough to look at it and think, "1 load from memory, 1 AND operation, one test operation, totalling 3 operations, which is better than the other approach which uses 4 operations."? Or do things get more complicated than that? I think there are some things I'm not sure about. For example, does dereferencing a pointer (pointer_to_something->field) "cost" anything? Where could I learn these kinds of things? Am I better off just learning ASM altogether? Russell
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