实现中断与异常

riscv/main.c

@@ -44,12 +44,19 @@ int main()
 {
   int a=1;
   int b=2;
+  // typedef void (*fun_t)(void);
+  // fun_t fun = (fun_t)0xffffffff;
+  // fun();
   int c = add(a, b);
   my_printf("Hello World! %s\n", "Andy");
   my_printf("add(%d, %d)=%d\n", a, b, c);
   a = 67;b = -78;
   my_printf("mul(%d, %d)=%d\n", a, b, a * b);
   my_printf("ram_val test: %s\n", g_string);
+  set_csr(mstatus, 0x00000008);
+  set_csr(mie, (1 << 3));
+  set_csr(mip, (1 << 3));
   cpu_test();
+
   return 0;
 }