Bug 573

Summary: SV elwidth for multiply
Product: Libre-SOC's first SoC Reporter: Luke Kenneth Casson Leighton <lkcl>
Component: SpecificationAssignee: Jacob Lifshay <programmerjake>
Status: CONFIRMED ---    
Severity: enhancement CC: libre-soc-isa
Priority: ---    
Version: unspecified   
Hardware: PC   
OS: Linux   
See Also: https://bugs.libre-soc.org/show_bug.cgi?id=213
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Description Luke Kenneth Casson Leighton 2021-01-07 18:52:35 GMT 
focus on as-if.  truncate based on what's observable on a per-opcode basis

idea: precision of operations is "as if" it was infinite precision.
reality will be that operations will be truncated to fit anyway.
Comment 1 Jacob Lifshay 2021-01-07 19:53:43 GMT 
This is needed to get the correct answer for saturating multiply.