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Bradlee Speice 2019-01-15 22:54:21 -05:00
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_drafts/understanding-allocations-in-rust.md
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@ -121,7 +121,7 @@ variables because we know exactly how much space is needed.
The `eax` register is re-used to store the final result. The `eax` register is re-used to store the final result.
2. Because `MICROS_PER_MILLI` and `NANOS_PER_MICRO` are constants, the compiler never 2. Because `MICROS_PER_MILLI` and `NANOS_PER_MICRO` are constants, the compiler never
allocates memory, and just burns the constants into the final program. allocates memory, and just burns the constants into the final program.
- Look for the `mov edi, 1000` and `mov ecx, 1000`. - Look for the instructions `mov edi, 1000` and `mov ecx, 1000`.
Given this information, the compiler can efficiently lay out your memory usage so Given this information, the compiler can efficiently lay out your memory usage so
that the program never needs to ask the kernel/allocator for memory! This example that the program never needs to ask the kernel/allocator for memory! This example