Avoid the stack in assembly and use explicit registers
Explicitly access %0..%2 as 64-bit so we use the right registers for x32 ABI
Merge pull request #142

f22d73e Explicitly access %0..%2 as 64-bit so we use the right registers for x32 ABI (Luke Dashjr)
e66d4d6 Avoid the stack in assembly and use explicit registers (Pieter Wuille)