Add bignum support

ewasm · Apr 26, 2019 · 2d9f40a · 2d9f40a
1 parent 9cc0d51
commit 2d9f40a
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Showing 3 changed files with 9 additions and 0 deletions.
diff --git a/Cargo.toml b/Cargo.toml
@@ -14,3 +14,4 @@ wee_alloc = "0.4.4"
 default = [ "std" ]
 std = []
 debug = []
+bignum = []
diff --git a/src/bignum.rs b/src/bignum.rs
@@ -0,0 +1,5 @@
+/// The bignum system library.
+extern "C" {
+    pub fn bignum_mul256(a: *const u32, b: *const u32, ret: *mut u32);
+    pub fn bignum_umulmod256(a: *const u32, b: *const u32, mod: *const u32, ret: *mut u32);
+}
diff --git a/src/lib.rs b/src/lib.rs
@@ -29,6 +29,9 @@ pub mod types;
 #[cfg(feature = "debug")]
 pub mod debug;
 
+#[cfg(feature = "bignum")]
+pub mod bignum;
+
 #[cfg(not(feature = "std"))]
 pub mod convert;