An extension he calls Xh3bextm. For extracting multiple bits from bitfields. htt... | Hacker News

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mjmas 4 months ago | parent | context | favorite | on: RISC-V Is Sloooow

An extension he calls Xh3bextm. For extracting multiple bits from bitfields.

https://wren.wtf/hazard3/doc/#extension-xh3bextm-section

There are also four other custom extensions implemented.

wren6991 4 months ago [–]

This extension wasn't strictly necessary but it makes decode of Arm instructions faster in the bootrom's Arm emulator.

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