better mtime/mtimecmp handling in print_registers()

Author: ccattuto

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "advanced/micropython/micropython"]
 	path = advanced/micropython/micropython
 	url = https://github.com/micropython/micropython
+[submodule "advanced/circuitpython/circuitpython"]
+	path = advanced/circuitpython/circuitpython
+	url = https://github.com/adafruit/circuitpython.git

cpu.py

@@ -413,7 +413,7 @@ def __init__(self, ram, init_regs=None, logger=None, trace_traps=False):
         csr_names = {
             'mstatus': 0x300, 'misa': 0x301, 'mie': 0x304, 'mtvec': 0x305,
             'mscratch': 0x340, 'mepc': 0x341, 'mcause': 0x342, 'mtval': 0x343, 'mip': 0x344,
-            'mtime_lo': 0x7C0, 'mtime_hi': 0x7C1, 'mtimecmp_lo': 0x7C2, 'mtimecmp_hi': 0x7C3
+            #'mtime_lo': 0x7C0, 'mtime_hi': 0x7C1, 'mtimecmp_lo': 0x7C2, 'mtimecmp_hi': 0x7C3
         }
         for name, addr in csr_names.items():
             self.CSR_NAME_ADDR[name] = addr
@@ -533,3 +533,8 @@ def print_registers(self):
         for name, addr in self.CSR_NAME_ADDR.items():
             value = self.csrs[addr]
             self.logger.info(f"{name:<12} ({addr:03X}): {value:08X} ({value})")
+
+        self.logger.info(f"{"mtime_lo":<18}: {self.mtime & 0xFFFFFFFF:08X} ({self.mtime & 0xFFFFFFFF})")
+        self.logger.info(f"{"mtime_hi":<18}: {self.mtime >> 32:08X} ({self.mtime >> 32})")
+        self.logger.info(f"{"mtimecmp_lo":<18}: {self.mtimecmp & 0xFFFFFFFF:08X} ({self.mtimecmp & 0xFFFFFFFF})")
+        self.logger.info(f"{"mtimecmp_hi":<18}: {self.mtimecmp >> 32:08X} ({self.mtimecmp >> 32})")