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1.1 root 1: ;***
2: ;msdos.inc - MS-DOS definitions for C runtime
3: ;
4: ; Copyright (c) 1987, Microsoft Corporation. All rights reserved.
5: ;
6: ;Purpose:
7: ; This file contains the MS-DOS definitions (DOS function request
8: ; numbers, flags, etc) used by the C runtime.
9: ;
10: ;*******************************************************************************
11:
12:
13: ;_NFILE equ 20 ; maximum # files per process
14:
15: STACKSLOP equ 256 ; stack slop for interrupt overhead
16:
17:
18: ; __osfile flag values for DOS file handles
19:
20: FOPEN equ 01H ; file handle open
21: FEOFLAG equ 02H ; end of file has been encountered
22: FCRLF equ 04H ; CR-LF across read buffer (in text mode)
23: FPIPE equ 08H ; file handle refers to a pipe
24: FRDONLY equ 10H ; file handle associated with read only file
25: FAPPEND equ 20H ; file handle opened O_APPEND
26: FDEV equ 40H ; file handle refers to device
27: FTEXT equ 80H ; file handle is in text mode
28:
29:
30: callos MACRO func
31: ifnb <func>
32: mov ah,DOS_&func
33: endif
34: int DOS
35: ENDM
36:
37:
38: DOS equ 21H ; MS-DOS interrupt
39:
40: DOS_exit equ 00000H ; exit offset (PSP:0000)
41: DOS_maxpara equ 00002H ; maximum paragraph (PSP:0002)
42: DOS_envp equ 0002cH ; environment address (PSP:002c)
43: DOS_cmdline equ 00080H ; command line offset (PSP:0080)
44:
45: DOS_kill equ 00H ; terminate
46: DOS_echoread equ 01H ; read keyboard and echo
47: DOS_display equ 02H ; display character
48: DOS_auxinput equ 03H ; auxiliary input
49: DOS_auxoutput equ 04H ; auxiliary output
50: DOS_print equ 05H ; print character
51: DOS_conio equ 06H ; direct console i/o
52: DOS_coninput equ 07H ; direct console input
53: DOS_readkbd equ 08H ; read keyboard
54: DOS_message equ 09H ; display string
55: DOS_bufkbdin equ 0aH ; buffered keyboard input
56: DOS_kbdstatus equ 0bH ; check keyboard status
57: DOS_flshread equ 0cH ; flush buffer and read keyboard
58: DOS_diskreset equ 0dH ; disk reset
59: DOS_selectdisk equ 0eH ; select default disk
60: DOS_fcbopen equ 0fH ; open file with fcb
61: DOS_fcbclose equ 10H ; close file with fcb
62: DOS_fcbfirst equ 11H ; search for first entry with fcb
63: DOS_fcbnext equ 12H ; search for next entry with fcb
64: DOS_fcbdelete equ 13H ; delete file with fcb
65: DOS_fcbsread equ 14H ; sequential read with fcb
66: DOS_fcbswrite equ 15H ; sequential write with fcb
67: DOS_fcbcreate equ 16H ; create file with fcb
68: DOS_fcbrename equ 17H ; rename file with fcb
69: DOS_currentd equ 19H ; current default disk
70: DOS_setDMA equ 1aH ; set DMA
71: DOS_fcbrread equ 21H ; random read with fcb
72: DOS_fcbrwrite equ 22H ; random write with fcb
73: DOS_fcbsize equ 23H ; file size with fcb
74: DOS_fcbsetrec equ 24H ; set relative record with fcb
75: DOS_setvector equ 25H ; set interrupt vector
76: DOS_fcbbread equ 27H ; random block read with fcb
77: DOS_fcbbwrite equ 28H ; random block write with fcb
78: DOS_fcbparse equ 29H ; parse file name with fcb
79: DOS_getdate equ 2aH ; get date
80: DOS_setdate equ 2bH ; set date
81: DOS_gettime equ 2cH ; get time
82: DOS_settime equ 2dH ; set time
83: DOS_verify equ 2eH ; set/reset verify flag
84: DOS_getDMA equ 2fH ; get DMA
85: DOS_version equ 30H ; get version number
86: DOS_keep equ 31H ; keep process
87: DOS_cntlc equ 33H ; Cntl-C check
88: DOS_getvector equ 35H ; get interrupt vector
89: DOS_getdskspc equ 36H ; get disk free space
90: DOS_country equ 38H ; get country dependent info
91: DOS_mkdir equ 39H ; make subdirectory
92: DOS_rmdir equ 3aH ; remove subdirectory
93: DOS_chdir equ 3bH ; change subdirectory
94: DOS_create equ 3cH ; create pathname
95: DOS_open equ 3dH ; open pathname
96: DOS_close equ 3eH ; close file handle
97: DOS_read equ 3fH ; read from file handle
98: DOS_write equ 40H ; write from file handle
99: DOS_delete equ 41H ; delete pathname
100: DOS_lseek equ 42H ; move file pointer
101: DOS_filemode equ 43H ; get/set attributes of pathname
102: DOS_ioctl equ 44H ; ioctl for devices
103: DOS_dup equ 45H ; duplicate file handle
104: DOS_forcedup equ 46H ; force duplicate file handle
105: DOS_curdir equ 47H ; get current directory
106: DOS_allocmem equ 48H ; allocate memory block
107: DOS_freemem equ 49H ; free memory block
108: DOS_setmem equ 4aH ; set size of memory block
109: DOS_exec equ 4bH ; load and execute program
110: DOS_terminate equ 4cH ; terminate process with errorcode
111: DOS_wait equ 4dH ; get child process return code
112: DOS_findfirst equ 4eH ; find first file match
113: DOS_findnext equ 4fH ; find next file match
114: DOS_getverify equ 54H ; return current verify flag
115: DOS_rename equ 56H ; rename pathname
116: DOS_filedate equ 57H ; get/set file handle date/time
117: DOS_createnew equ 5BH ; create new file
118: DOS_locking equ 5CH ; file record locking/unlocking
119: DOS_sleep equ 89H ; delay process execution
120:
121:
122: ; DOS error codes
123:
124: doserr MACRO num,name,text
125: name equ num
126: ENDM
127:
128: doserr 1, E_ifunc, <invalid function code>
129: doserr 2, E_nofile, <file not found>
130: doserr 3, E_nopath, <path not found>
131: doserr 4, E_toomany, <too many open files>
132: doserr 5, E_access, <access denied>
133: doserr 6, E_ihandle, <invalid handle>
134: doserr 7, E_arena, <arena trashed>
135: doserr 8, E_nomem, <not enough memory>
136: doserr 9, E_iblock, <invalid block>
137: doserr 10, E_badenv, <bad environment>
138: doserr 11, E_badfmt, <bad format>
139: doserr 12, E_iaccess, <invalid access code>
140: doserr 13, E_idata, <invalid data>
141: doserr 14, E_unknown, <??? unknown error ???>
142: doserr 15, E_idrive, <invalid drive>
143: doserr 16, E_curdir, <current directory>
144: doserr 17, E_difdev, <not same device>
145: doserr 18, E_nomore, <no more files>
146: doserr 19, E_maxerr2, <unknown error - Version 2.0>
147:
148: ; the following errors can occur only in DOS 3.0
149:
150: doserr 32, E_sharerr, <sharing violation>
151: doserr 33, E_lockerr, <locking violation>
152: doserr 34, E_maxerr3, <unknown error - Version 3.0>
153:
154:
155: ; DOS file attributes
156:
157: A_ro equ 01H ; read-only file
158: A_h equ 02H ; hidden
159: A_s equ 04H ; system
160: A_v equ 08H ; volume ID
161: A_d equ 10H ; directory
162: A_a equ 20H ; archive
163:
164: A_mod equ A_ro+A_h+A_s+A_a ; modifiable attributes
165:
166: ; OS/2 file creation bits
167:
168: F_CREATFLAG equ 10h
169: F_OPENFLAG equ 01h
170: F_TRUNCFLAG equ 02H
171:
172: ; OS/2 device mask
173:
174: IS_DEV equ 1
175: IS_PIPE equ 2
176:
177: ; end of msdos.inc
178: ;-----------------------------------------------------------------------
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