[Libre-soc-bugs] [Bug 239] FP16 (and FP128) POWER Formal Standard proposal

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=239

Luke Kenneth Casson Leighton <lkcl at lkcl.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://libre-soc.org/openp
                   |                            |ower/sv/svp64/
       The table of|                            |addw=1250
  payments (in EUR)|                            |lkcl=1250
     for this task;|                            |
        TOML format|                            |

--- Comment #2 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
this is done, the decision was to go with:

* default: FP64
* 0b01   : FP32
* 0b10   : FP16
* 0b11   : BF16

as part of the element-width overrides in SVP64

## Elwidth for FP Registers:

| Value | Mnemonic       | Description                        |
|-------|----------------|------------------------------------|
| 00    | DEFAULT        | default behaviour for FP operation     |
| 01    | `ELWIDTH=f32`  | 32-bit IEEE 754 Single floating-point  |
| 10    | `ELWIDTH=f16`  | 16-bit IEEE 754 Half floating-point   |
| 11    | `ELWIDTH=bf16` | Reserved for `bf16` |

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