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While the VCD format separates the timescale and the timestep (likely to allow representing the timestep with a small integer type), time in CXXRTL is represented using a uniform 96-bit number, which allows for a ±100 year range at femtosecond resolution. The implementation uses `value<96>`, which provides fast arithmetic and comparison operations, as well as conversion to/from a more common representation of integer seconds plus femtoseconds. |
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| .. | ||
| runtime | ||
| cxxrtl_backend.cc | ||
| Makefile.inc | ||