9names

@9names.bsky.social

142 Followers 66 Following

Every year I promise to post more of what I'm doing, which unfortunately doesn't make it happen. Interested in programming languages / algorithms / software tooling, but I spend most of my time with embedded(C, C++, Rust).

A screenshot of the compiler explorer website. In the left-most pane are some functions calling operations on Rust's u32 type (reverse_bits, count_ones, leading_zeros, trailing_zeros, to_be, isolate_highest_one, lowest_one).

the center pane has the assembly output for the riscv32IMAC target. most of the functions generate 10's of instructions with a total output length of 186 lines.

the right pane is also targeting riscv32IMAC but has additional riscv bitmap extensions enabled. these versions generate 1 to 4 instructions per function, so they all fit on the page. the total length of the output is 33 lines.