ERROR STRUC
errAX dw ? ;ax register
errBX dw ? ;bx register
errCX dw ? ;cx register
errDX dw ? ;dx register
errSI dw ? ;si register
errDI dw ? ;di register
errDS dw ? ;ds register
errES dw ? ;es register
errReserved dw ? ;reserved 16 bits
errUID dw ? ;user (computer) ID (0 = local computer)
errPID dw ? ;program ID (0 = local program)
ERROR ENDS
The ERROR structure contains information about the current error.
errAX
Specifies the error value. For a table of error values, see Appendix C, “Error Values.”
errBX
Specifies the error class in the high-order byte and the suggested action in the low-order byte. The error class may be one of the following values:
| Value | Meaning |
| ERRCLASS_OUTRES (01h) | Out of resource, such as storage. |
| ERRCLASS_TEMPSIT (02h) | Not an error, but a temporary situation that is expected to end, such as a locked region in a file. |
| ERRCLASS_AUTH (03h) | Authorization problem. |
| ERRCLASS_INTRN (04h) | Internal error in system. |
| ERRCLASS_HRDFAIL (05h) | Hardware failure. |
| ERRCLASS_SYSFAIL (06h) | System software failure not the fault of the active program (caused by missing or incorrect configuration files, for example). |
| ERRCLASS_APPERR (07h) | Application error. |
| ERRCLASS_NOTFND (08h) | File or item not found. |
| ERRCLASS_BADFMT (09h) | File or item with an invalid format or type. |
| ERRCLASS_LOCKED (0Ah) | Interlocked file or item. |
| ERRCLASS_MEDIA (0Bh) | Wrong disk in drive, bad spot on disk, or other storage-medium problem. |
| ERRCLASS_ALREADY (0Ch) | Existing file or item. |
| ERRCLASS_UNK (0Dh) | Unknown. |
The suggested action may be one of the following values:
| Value | Meaning |
| ERRACT_RETRY (01h) | Retry immediately. |
| ERRACT_DLYRET (02h) | Delay and retry. |
| ERRACT_USER (03h) | Bad user input—get new values. |
| ERRACT_ABORT (04h) | Terminate in an orderly manner. |
| ERRACT_PANIC (05h) | Terminate immediately. |
| ERRACT_IGNORE (06h) | Ignore the error. |
| ERRACT_INTRET (07h) | Prompt the user to remove the cause of the error (to change disks, for example) and then retry. |
errCX
Specifies the error-location value. This value can be one of the following:
| Value | Location |
| ERRLOC_UNK (01h) | Unknown |
| ERRLOC_DISK (02h) | Random-access device, such as a disk drive |
| ERRLOC_NET (03h) | Network |
| ERRLOC_SERDEV (04h) | Serial device |
| ERRLOC_MEM (05h) | Memory |
errDX
Specifies the DX register contents at the time the error occurred.
errSI
Specifies the SI register contents at the time the error occurred.
errDI
Specifies the DI register contents at the time the error occurred.
errDS
Specifies the DS register contents at the time the error occurred.
errES
Specifies the ES register content at the time the error occurred.
errReserved
Reserved.
errUID
Identifies the computer, for errors that occur on remote computers. If this field is zero, the error occurred on the local computer.
errPID
Identifies the program, for errors that occur on remote computers. If this field is zero, the error occurred in a program on the local computer.
Interrupt 21h Function 5D0Ah Set Extended Error