The operating system defines a class of error conditions called exceptions, and specifies the default actions that are taken when these exceptions occur. The system default action in most cases is to terminate the thread that caused the exception.
Exception values have the following 32-bit format:
3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 旼컴쩡쩡컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿞ev쿎� Facility � Code � 읕컴좔좔컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
Sev
00
Exceptions that are specific to OS/2 Version 2.X (for example, XCPT_SIGNAL) have a facility code of 1.
System exceptions include both synchronous and asynchronous exceptions. Synchronous exceptions are caused by events that are internal to a thread's execution. For example, synchronous exceptions could be caused by invalid parameters, or by a thread's request to end its own execution.
Asynchronous exceptions are caused by events that are external to a thread's execution. For example, an asynchronous exception can be caused by a user's entering a Ctrl+C or Ctrl+Break key sequence, or by a process' issuing DosKillProcess to end the execution of another process.
The Ctrl+Break and Ctrl+C exceptions are also known as signals, or as signal exceptions.
The following tables show the symbolic names of system exceptions, their numerical values, and related information fields.
Portable, Non-Fatal, Software-Generated Exceptions
旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴커쿐xception Name 쿣alue � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴캑 �XCPT_GUARD_PAGE_VIOLATION �0x80000001� � ExceptionInfo[0] - R/W flag � � � ExceptionInfo[1] - FaultAddr � � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴캑 �XCPT_UNABLE_TO_GROW_STACK �0x80010001� 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴켸
Portable, Fatal, Hardware-Generated Exceptions
旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴컫컴컴컴컴컴컴커 쿐xception Name 쿣alue 쿝elated Trap � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_ACCESS_VIOLATION �0xC0000005�0x09, 0x0B, � � ExceptionInfo[0] - Flags � �0x0C, 0x0D, � � XCPT_UNKNOWN_ACCESS 0x0 � �0x0E � � XCPT_READ_ACCESS 0x1 � � � � XCPT_WRITE_ACCESS 0x2 � � � � XCPT_EXECUTE_ACCESS 0x4 � � � � XCPT_SPACE_ACCESS 0x8 � � � � XCPT_LIMIT_ACCESS 0x10 � � � � ExceptionInfo[1] - FaultAddr � � � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_INTEGER_DIVIDE_BY_ZERO �0xC000009B�0 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_DIVIDE_BY_ZERO �0xC0000095�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_INVALID_OPERATION �0xC0000097�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_ILLEGAL_INSTRUCTION �0xC000001C�0x06 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_PRIVILEGED_INSTRUCTION �0xC000009D�0x0D � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_INTEGER_OVERFLOW �0xC000009C�0x04 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_OVERFLOW �0xC0000098�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_UNDERFLOW �0xC000009A�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_DENORMAL_OPERAND �0xC0000094�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_INEXACT_RESULT �0xC0000096�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_FLOAT_STACK_CHECK �0xC0000099�0x10 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_DATATYPE_MISALIGNMENT �0xC000009E�0x11 � � ExceptionInfo[0] - R/W flag � � � � ExceptionInfo[1] - Alignment � � � � ExceptionInfo[2] - FaultAddr � � � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_BREAKPOINT �0xC000009F�0x03 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_SINGLE_STEP �0xC00000A0�0x01 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴컨컴컴컴컴컴컴켸
Portable, Fatal, Software-Generated Exceptions
旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴컫컴컴컴컴컴컴커 쿐xception Name 쿣alue 쿝elated Trap � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_IN_PAGE_ERROR �0xC0000006�0x0E � � ExceptionInfo[0] - FaultAddr � � � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_PROCESS_TERMINATE �0xC0010001� � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_ASYNC_PROCESS_TERMINATE �0xC0010002� � � ExceptionInfo[0] - TID of � � � � terminating thread � � � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_NONCONTINUABLE_EXCEPTION �0xC0000024� � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_INVALID_DISPOSITION �0xC0000025� � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴컨컴컴컴컴컴컴켸
Non-Portable, Fatal Exceptions
旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴컫컴컴컴컴컴컴커 쿐xception Name 쿣alue 쿝elated Trap � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_INVALID_LOCK_SEQUENCE �0xC000001D� � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컵컴컴컴컴컴컴캑 �XCPT_ARRAY_BOUNDS_EXCEEDED �0xC0000093�0x05 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴컨컴컴컴컴컴컴켸
Unwind Operation Exceptions
旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴커 쿐xception Name 쿣alue � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴캑 �XCPT_UNWIND �0xC0000026� 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴캑 �XCPT_BAD_STACK �0xC0000027� 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴캑 �XCPT_INVALID_UNWIND_TARGET �0xC0000028� 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴켸
Fatal Signal Exceptions
旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴커 쿐xception Name 쿣alue � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴캑 �XCPT_SIGNAL �0xC0010003� � ExceptionInfo[ 0 ] - Signal � � � Number � � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴켸