add a bit of documentation

Author: make-github-pseudonymous-again

src/add32.js

@@ -1 +1,4 @@
+/**
+ * Adds to 32-bit signed integers.
+ */
 export const add32 = ( a , b ) => ( a + b ) | 0 ;

src/big32.js

@@ -1,3 +1,6 @@
+/**
+ * Construct a 32-bit signed integer from 4 bytes.
+ */
 export function big32 (a, o) {
 	return (a[o + 0] << 24) | (a[o + 1] << 16) | (a[o + 2] << 8) | a[o + 3];
 }

src/get32.js

@@ -1,4 +1,10 @@
-
+/**
+ * Creates a 32-bit signed integer from anything.
+ *
+ * @example
+ * get32(0xFFFFFFFF); // -1
+ *
+ */
 export function get32 ( w ) {
 	return w | 0 ;
 }