Fix build failure when using gcc-15 (#348)

9 months ago · 0239d921a2
1 changed files with 1 additions and 0 deletions
--- a/machine/emulation.c
+++ b/machine/emulation.c
@ -284,6 +284,7 @@ DECLARE_EMULATION_FUNC(emulate_system_opcode)
    case 5: new_csr_val = rs1_num; do_write = 1; break;
    case 6: new_csr_val = csr_val | rs1_num; break;
    case 7: new_csr_val = csr_val & ~rs1_num; break;
+    default: __builtin_unreachable();
  }

  if (do_write && emulate_write_csr(csr_num, new_csr_val, mstatus))