[Libre-soc-bugs] [Bug 899] implement additional Transcendentals in simulator

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=899

--- Comment #3 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
| flog2p1(s)| log2 plus 1               | 10101 01110     |
| fexp2(s) | power-of-2               | 10110 01110     |
| flog2(s) | log2                     | 10111 01111     |
| fexpm1(s)| exponential minus 1      | 11000 01110     |

suggest a helper.py function pair

FPLOG(self, val, pow, offset=1.0)
FPEXP(self, val, exp, offset=-1.0)

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