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To invert the result of a bext, we can use bext+seqz. 


  1. bext can be used to extract a single bit, storing the result into an SImode object, even for rv64 since bits 1..63 will be zero'd by the (&1) operation in the bext specification.

Stakeholders/Partners

RISE:

Ventana: Jeff Law – general oversight / guidance & implementation

Ventana: Raphael Zinsly – implementations

External:


Dependencies



Status

Page Properties


Development

Status
colourBlue
titleIN PROGRESS


Development Timeline1H2024
Upstreaming

Status
colourBlue
titleIN PROGRESS



Upstream Version

gcc-15 (target)

(Spring 2025)





Contacts

Jeff Law (Ventana)


DependenciesNone



Updates

 

  • Raphael's code for using bext to extract a single bit, storing the result in an SImode object for rv64 has been submitted

 

  • There's probably about a dozen issues identified with patches that are ready or nearly ready for upstreaming.  First patch is going through upstream process right now.

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