diff options
| -rw-r--r-- | spec/util_bitcompat_spec.lua | 4 | ||||
| -rw-r--r-- | util/bit53.lua | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/spec/util_bitcompat_spec.lua b/spec/util_bitcompat_spec.lua index 34a87f5b..99642821 100644 --- a/spec/util_bitcompat_spec.lua +++ b/spec/util_bitcompat_spec.lua @@ -24,4 +24,8 @@ describe("util.bitcompat", function () it("lshift works", function () assert.equal(0xFF00, bit.lshift(0xFF, 8)); end); + + it("bnot works", function () + assert.equal(0x0000FF00, bit.band(0xFFFFFFFF, bit.bnot(0xFFFF00FF))); + end); end); diff --git a/util/bit53.lua b/util/bit53.lua index b5c473a3..42f17ce8 100644 --- a/util/bit53.lua +++ b/util/bit53.lua @@ -27,6 +27,9 @@ return { end return ret; end; + bnot = function (x) + return ~x; + end; rshift = function (a, n) return a >> n end; lshift = function (a, n) return a << n end; }; |