[Libre-soc-isa] [Bug 1183] add /mrr mode (reverse mode) to Data-Dependent Fail-First CR_ops

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=1183

--- Comment #13 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #12)
> look again at the table. SNZ is not present.

This table:
(In reply to Luke Kenneth Casson Leighton from comment #2)
>  |6 | 7 |19:20|21 | 22:23   |  description     |
>  |--|---|-----|---|---------|------------------|
>  |RG|SNZ|0  0 |/  | dz  sz  | simple mode                      |
>  |RG|SNZ|1  0 |/  | dz  sz  | scalar reduce mode (mapreduce) |
>  |RG|SNZ|VLI 1|inv|  CR-bit | Ffirst 3-bit mode (implicit zz=1)     |
>  |RG|SNZ|VLI 1|inv|  dz sz  | Ffirst 5-bit mode (implies CR-bit from result)|

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