* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.The 0x00001000 address is mapped to ROM with a trampoline code to 0x80000000. AUIPC instruction moves its immediate value 12 bits to the left and adds to the current PC , so t0 = 0(x7ffff<<12)+ 0x1000 = 0x80000000ww.gnu.org/licenses/>.
