Method codeUnit

dexfixer/src/com/android/dx/dex/code/InsnFormat.java:478–488

Helper method to combine two bytes into a code unit. @param low 0..255; low byte @param high 0..255; high byte @return combined value

(int low, int high)

     * @return combined value
     */
    protected static short codeUnit(int low, int high) {
        if ((low & 0xff) != low) {
            throw new IllegalArgumentException("low out of range 0..255");
        }

        if ((high & 0xff) != high) {
            throw new IllegalArgumentException("high out of range 0..255");
        }

        return (short) (low | (high << 8));
    }

    /**
     * Helper method to combine four nibbles into a code unit.