lib/std/math/big/int.zig         |  33 +++--
 lib/std/math/big/int_test.zig    |  22 ++++
 src/codegen/x86_64/CodeGen.zig   |   7 +-
 src/codegen/x86_64/Encoding.zig  |  10 +-
 src/codegen/x86_64/Lower.zig     |   6 +-
 src/codegen/x86_64/Mir.zig       |   6 +-
 src/codegen/x86_64/encoder.zig   |  39 +++---
 src/codegen/x86_64/encodings.zon |  28 ++---
 test/behavior/math.zig           |  19 +++
 test/behavior/x86_64/binary.zig  | 214 ++++++++++++++++++++------------
 test/behavior/x86_64/unary.zig   | 144 ++++++++++++++-------
 11 files changed, 329 insertions(+), 199 deletions(-)