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Upstream binutils now supports the fully ratified 1.0.0 bitmanip extensions. The patch has been updated to add only the unratified 0.93 instructions.
Version 3.40 of binutils included a fix for generating verilog memory (vmem) files which is useful for OpenTitan.
This currently doesn't work, the binutils that get built only use
rv32i
by default and don't even enabledm
orc
. I can see thatct-ng
configures the binutils build with'--target=riscv32-unknown-elf'
which I'm guessing needs to beriscv32imcb...-unknown-elf
? Not sure how to change that.