Added x86 package

src/sizeof/Unsigned.go

@@ -0,0 +1,22 @@
+package sizeof
+
+import "math"
+
+// Unsigned tells you how many bytes are needed to encode this unsigned number.
+func Unsigned[T uint | uint8 | uint16 | uint32 | uint64 | int | int8 | int16 | int32 | int64](number T) int {
+	x := uint64(number)
+
+	switch {
+	case x <= math.MaxUint8:
+		return 1
+
+	case x <= math.MaxUint16:
+		return 2
+
+	case x <= math.MaxUint32:
+		return 4
+
+	default:
+		return 8
+	}
+}