edit: and that's exactly the point, I think there is a mismatch in WETH allowances (between spender and owner, inverted?) - will fix it later
drgorillamd/Solidity-ASM-weth
Asm shenanigans, including WETH contract, but in assembly (leftover of a drunk-coding saturday night), Storage classic example (but in assembly, with fallback as single point of entry) and other assemblified things
Solidity