中国科学院21H条(0x21)
功能57h(或870x57)-->确定立案日期和时间或获得
Call with: If getting date and time
AH = 57H
AL = 00H
BX = handle
If setting date and time
AH = 57H
AL = 01H
BX = handle
CX = time
bits 00H-04H = 2-second increments (0-29)
bits 05H-0AH = minutes (0-59)
bits 0BH-0FH = hours (0-23)
DX = date
bits 00H-04H = day (1-31)
bits 05H-08H = month (1-12)
bits 09H-0FH = year (relative to 1980)
Returns: If function successful
Carry flag = clear
and, if called with AL = 00H
CX = time
DX = date
If function unsuccessful
Carry flag = set
AX = error code
评论:
这项功能获取或修改日期及时间邮票的根目录进入档案.
中国科学院21H条(0x21)
木材功能(88或0x58)-->取得或定分配策略
Call with: If getting strategy code
AH = 58H
AL = 00H
If setting strategy code
AH = 58H
AL = 01H
BX = desired strategy code
00H = first fit
01H = best fit
02H = last fit
Returns: If function successful
Carry flag = clear
and, if called with AL = 00H
AX = current strategy code
If function unsuccessful
Carry flag = set
AX = error code
评论:
获取或更改代码,显示当前MS-DOS下内存块分配策略.余失-民政内存分配策略是先适应(代码:0).
在首适合内存分配MS-DOS下搜索可用内存块由低向高地址 出让第一座配置足以满足要求.
遇有最佳配置策略、MS-DOS下搜索所有可用内存块、分配块,最小的可满足这些要求,不论其立场.
内存分配策略上的配合,MS-DOS下搜索可用内存块从低到高地址地址 指派一名最高足以满足分配请求块.
中国科学院21H条(0x21)
功能59H条(或890x59)-->得到扩展错误信息
Call with: AH = 59H
BX = 00H
Returns: AX = extended error code
错误代码表已列如下:
Error Code |
Error |
01H |
function number invalid |
02H |
file not found |
03H |
path not found |
04H |
too many open files |
05H |
access denied |
06H |
handle invalid |
07H |
memory control blocks destroyed |
08H |
insufficient memory |
09H |
memory block address invalid |
0AH (10) |
environment Invalid |
0BH (11) |
format invalid |
0CH (12) |
access code invalid |
0DH (13) |
data invalid |
0EH (14) |
unknown unit |
0FH (15) |
disk drive invalid |
10H (16) |
attempted to remove current directory |
11H (17) |
not same device |
12H (18) |
no more files |
13H (19) |
disk write-protected |
14H (20) |
unknown unit |
15H (21) |
drive not ready |
16H (22) |
unknown command |
17H (23) |
data error (CRC) |
18H (24) |
bad request structure length |
19H (25) |
seek error |
1AH (26) |
unknown media type |
1BH (27) |
sector not found |
1CH (28) |
printer out of paper |
1DH (29) |
write fault |
1EH (30) |
read fault |
1FH (31) |
general failure |
20H (32) |
sharing violation |
21H (33) |
lock violation |
22H (34) |
disk change invalid |
23H (35) |
FCB unavailable |
24H (36) |
sharing buffer exceeded |
25H-31H |
reserved |
32H (50) |
unsupported network request |
33H (51) |
remote machine not listening |
34H (52) |
duplicate name on network |
35H (53) |
network name not found |
36H (54) |
network busy |
37H (55) |
device no longer exists on network |
38H (56) |
net BIOS command limit exceeded |
39H (57) |
error in network adapter hardware |
3AH (58) |
incorrect response from network |
3BH (59) |
unexpected network error |
3CH (60) |
remote adapter incompatible |
3DH (61) |
print queue full |
3EH (62) |
not enough space for print file |
3FH (63) |
print file canceled |
40H (64) |
network name deleted |
41H (65) |
network access denied |
42H (66) |
incorrect network device type |
43H (67) |
network name not found |
44H (68) |
network name limit exceeded |
45H (69) |
net BIOS session limit exceeded |
46H (70) |
file sharing temporarily paused |
47H (71) |
network request not accepted |
48H (72) |
print or disk redirection paused |
49H-4FH |
reserved |
50H (80) |
file already exists |
51H (81) |
reserved |
52H (82) |
cannot make directory |
53H (83) |
fail on INT 24H (critical error) |
54H (84) |
too many redirections |
55H (85) |
duplicate redirection |
56H (86) |
invalid password |
57H (87) |
invalid parameter |
58H (88) |
network device fault |
59H (89) |
function not supported by network |
5AH (90) |
required system component not installed |
BH = error class
01H |
if out of resource (such as storage or handles) |
02H |
if not error, but temporary situation (such as locked region in file) that can be expected to end |
03H |
if authorization problem |
04H |
if internal error in system software |
05H |
if hardware failure |
06H |
if system software failure not the fault of the active process (such as missing configuration files) |
07H |
if application program error |
08H |
if file or item not found |
09H |
if file or item of invalid type or format |
0AH (10) |
if file or item locked |
0BH (11)
|
if wrong disk in drive, bad spot on disk, or storage medium problem |
0CH (12) |
if item already exists |
0DH (13) |
unknown error |
BL = recommend action
01H |
Retry reasonable number of times, then prompt user to select abort or ignore |
02H |
retry reasonable number of times with delay between retries, then prompt user to select abort or ignore |
03H |
get correct information from user (typically caused by incorrect file name or device specification) |
04H |
abort application with cleanup (i.e., terminate the program in as orderly a manner as possible: releasing locks, closing files, etc.) |
05H |
perform immediate exit without cleanup |
06H |
ignore error |
07H |
retry after user intervention to remove cause of error |
CH = error locus
01H unknown
02H block device (disk or disk
emulator)
03H network
04H serial device
05H memory
ES: DI = ASCIIZ volume label of disk to
insert, if AX = 0022H (invalid disk
change)
评论:
这项功能得到一份详细的错误信息后不成功中国科学院21H条电话功能,包括建议的补救行动.
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