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@rxaviers
rxaviers / gist:7360908
Last active November 8, 2025 20:45
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function fib3(uint n) external pure returns(uint a) {
if (n == 0) {
return 0;
}
uint h = n / 2;
uint mask = 1;
// find highest set bit in n
while(mask <= h) {
mask <<= 1;
}
@0xAlcibiades
0xAlcibiades / Multicall.sol
Created March 22, 2022 00:19
A Pre EIP-1559 MEV/Multicall in pure Yul integrated with ApeBank and with Native GasTokens
// SPDX-License-Identifier: MIT
object "Multicall" {
code {
// Deploy the contract
// Store gas token burn cost in zero slot
sstore(0, 0)
sstore(1, 0)
sstore(2, 0)
datacopy(0x0, dataoffset("MulticallRuntime"), datasize("MulticallRuntime"))
@grahamking
grahamking / runperf
Last active August 31, 2025 13:55
Bash script to run a benchmark under decent conditons.
#!/bin/bash
#
# Usage: runperf ./my-benchmark-binary
#
# Script to run a benchmark / performance test in decent conditions. Based on:
# - https://www.llvm.org/docs/Benchmarking.html
# - "Performance Analysis and Tuning on Modern CPU" by Denis Bakhvalov, Appendix A.
# - https://github.com/andikleen/pmu-tools
#
# Note that this doesn't do any actual benchmarking, your binary must be able to do that all by itself.