src/arch/x86_64/CodeGen.zig | 69 +++++++++++++++++++++++---------
 src/arch/x86_64/abi.zig     | 13 +++---
 src/arch/x86_64/bits.zig    | 18 ++++-----
 src/register_manager.zig    | 20 +++++++--
 4 files changed, 81 insertions(+), 39 deletions(-)