emu: dump register file on unimplemented opcode

2021-03-06 02:10:13 -08:00
parent fa49d19ae0
commit be7e926842
1 changed files with 1 additions and 1 deletions
--- a/src/emu/i8088.rs
+++ b/src/emu/i8088.rs
@@ -138,7 +138,7 @@ macro_rules! step {
      let opcode = $cpu.next_ip($bus);
      match(opcode) {
        $( $code => step!(@code (), $cpu, $bus, $name, $cycles, ($($args $(= $argrhs)?)*)) ),*,
-        _ => unimplemented!("opcode: {:02X}", opcode)
+        _ => unimplemented!("opcode: {:02X}\ncpu: {:#X?}", opcode, $cpu)
      }
    }
  }