Created
July 2, 2013 14:47
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General Optimizations
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| Operation => Optimized Operation. | |
| x * 10 => (((x << 2) + x) << 1) | |
| x * 100 => ((((((x << 2) + x) << 1) << 2) + (((x << 2) + x) << 1)) << 1) | |
| x * 1000 =>(((((((((x << 2) + x) << 1) << 2) + (((x << 2) + x) << 1)) << 1) << 2) + ((((((x << 2) + x) << 1) << 2) + (((x << 2) + x) << 1)) << 1)) << 1) | |
| x * 2 => x << 1 | |
| x * 4 => x << 2 | |
| x * 8 => x << 3 | |
| x * 16 => x << 4 | |
| x * 32 => x << 5 | |
| x / 2 => x >> 1 | |
| x / 4 => x >> 2 | |
| x / 8 => x >> 3 | |
| x / 16 => x >> 4 | |
| x / 32 => x >> 5 | |
| x % 4 => i & 3 |
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