;	SCCSID = @(#)error.asm	1.1 85/04/10
;	SCCSID = @(#)error.asm	1.1 85/04/10
BREAK <Xenix error codes>

;
; XENIX calls all return error codes through AX.  If an error occurred then
; the carry bit will be set and the error code is in AX.  If no error occurred
; then the carry bit is reset and AX contains returned info.
;
; Since the set of error codes is being extended as we extend the operating
; system, we have provided a means for applications to ask the system for a
; recommended course of action when they receive an error.
;
; The GetExtendedError system call returns a universal error, an error
; location and a recommended course of action.  The universal error code is
; a symptom of the error REGARDLESS of the context in which GetExtendedError
; is issued.
;

;
; These are the 2.0 error codes
;
error_invalid_function          EQU     1
error_file_not_found            EQU     2
error_path_not_found            EQU     3
error_too_many_open_files       EQU     4
error_access_denied             EQU     5
error_invalid_handle            EQU     6
error_arena_trashed             EQU     7
error_not_enough_memory         EQU     8
error_invalid_block             EQU     9
error_bad_environment           EQU     10
error_bad_format                EQU     11
error_invalid_access            EQU     12
error_invalid_data              EQU     13
;**** reserved                  EQU     14      ; *****
error_invalid_drive             EQU     15
error_current_directory         EQU     16
error_not_same_device           EQU     17
error_no_more_files             EQU     18
;
; These are the universal int 24 mappings for the old INT 24 set of errors
;
error_write_protect             EQU     19
error_bad_unit                  EQU     20
error_not_ready                 EQU     21
error_bad_command               EQU     22
error_CRC                       EQU     23
error_bad_length                EQU     24
error_Seek                      EQU     25
error_not_DOS_disk              EQU     26
error_sector_not_found          EQU     27
error_out_of_paper              EQU     28
error_write_fault               EQU     29
error_read_fault                EQU     30
error_gen_failure               EQU     31
;
; These are the new 3.0 error codes reported through INT 24
;
error_sharing_violation         EQU     32
error_lock_violation            EQU     33
error_wrong_disk                EQU     34
error_FCB_unavailable           EQU     35
error_sharing_buffer_exceeded   EQU     36
;
; New OEM network-related errors are 50-79
;
error_not_supported             EQU     50
;
; End of INT 24 reportable errors
;
error_file_exists               EQU     80
error_DUP_FCB                   EQU     81      ; *****
error_cannot_make               EQU     82
error_FAIL_I24                  EQU     83
;
; New 3.0 network related error codes
;
error_out_of_structures         EQU     84
error_Already_assigned          EQU     85
error_invalid_password          EQU     86
error_invalid_parameter         EQU     87
error_NET_write_fault           EQU     88

BREAK <Interrupt 24 error codes>

error_I24_write_protect         EQU     0
error_I24_bad_unit              EQU     1
error_I24_not_ready             EQU     2
error_I24_bad_command           EQU     3
error_I24_CRC                   EQU     4
error_I24_bad_length            EQU     5
error_I24_Seek                  EQU     6
error_I24_not_DOS_disk          EQU     7
error_I24_sector_not_found      EQU     8
error_I24_out_of_paper          EQU     9
error_I24_write_fault           EQU     0Ah
error_I24_read_fault            EQU     0Bh
error_I24_gen_failure           EQU     0Ch
; NOTE: Code 0DH is used by MT-DOS.
error_I24_wrong_disk            EQU     0Fh

; THE FOLLOWING ARE MASKS FOR THE AH REGISTER ON Int 24

Allowed_FAIL                    EQU     00001000B
Allowed_RETRY                   EQU     00010000B
Allowed_IGNORE                  EQU     00100000B
;NOTE: ABORT is ALWAYS allowed

I24_operation                   EQU     00000001B       ;Z if READ,NZ if Write
I24_area                        EQU     00000110B       ; 00 if DOS
							; 01 if FAT
							; 10 if root DIR
							; 11 if DATA
I24_class                       EQU     10000000B       ;Z if DISK, NZ if FAT or char

BREAK <GetExtendedError CLASSes ACTIONs LOCUSs>

; Values for error CLASS

errCLASS_OutRes         EQU     1       ; Out of Resource
errCLASS_TempSit        EQU     2       ; Temporary Situation
errCLASS_Auth           EQU     3       ; Permission problem
errCLASS_Intrn          EQU     4       ; Internal System Error
errCLASS_HrdFail        EQU     5       ; Hardware Failure
errCLASS_SysFail        EQU     6       ; System Failure
errCLASS_Apperr         EQU     7       ; Application Error
errCLASS_NotFnd         EQU     8       ; Not Found
errCLASS_BadFmt         EQU     9       ; Bad Format
errCLASS_Locked         EQU     10      ; Locked
errCLASS_Media          EQU     11      ; Media Failure
errCLASS_Already        EQU     12      ; Collision with Existing Item
errCLASS_Unk            EQU     13      ; Unknown/other

; Values for error ACTION

errACT_Retry            EQU     1       ; Retry
errACT_DlyRet           EQU     2       ; Delay Retry, retry after pause
errACT_User             EQU     3       ; Ask user to regive info
errACT_Abort            EQU     4       ; abort with clean up
errACT_Panic            EQU     5       ; abort immediately
errACT_Ignore           EQU     6       ; ignore
errACT_IntRet           EQU     7       ; Retry after User Intervention

; Values for error LOCUS

errLOC_Unk              EQU     1       ; No appropriate value
errLOC_Disk             EQU     2       ; Random Access Mass Storage
errLOC_Net              EQU     3       ; Network
errLOC_SerDev           EQU     4       ; Serial Device
errLOC_Mem              EQU     5       ; Memory
