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Merged
shidel merged 3 commits into from
Apr 16, 2026
Merged

ecm 2026-04r #68

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dbd91f7
21.42: link to 21.7142
ecm-pushbx Apr 16, 2026
ce48ead
21.40: link to 21.42 properly, specifying CX:DX outside the reference
ecm-pushbx Apr 16, 2026
64aabda
21.40: use -sort-as- IDs to order DOS function first
ecm-pushbx Apr 16, 2026
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6 changes: 3 additions & 3 deletions ...Interrupt List/INT 21 DOS Function Calls/INT 2140 DOS 2 WRITE WRITE TO FILE OR DEVICE.txt
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@@ -1,5 +1,5 @@
--------------------------------------------------------------------------------
Unique ID: 2140
Unique ID: 2140-sort-as-2140++
Category: D DOS kernel
Flag: n/a
--------------------------------------------------------------------------------
Expand All @@ -25,7 +25,7 @@ BUG: a write of zero bytes will appear to succeed when it actually failed
if the write is extending the file and there is not enough disk
space for the expanded file (DOS 5.0-6.0); one should therefore check
whether the file was in fact extended by seeking to 0 bytes from
the end of the file (INT 21/AX=4202h/CX=0000h/DX=0000h)
the end of the file (INT 21/AX=4202h with CX:Dx=0000h:0000h)
under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=28h,AH=3Fh"DOS",AH=93h,INT 2F/AX=1109h

4 changes: 2 additions & 2 deletions ...rupt List/INT 21 DOS Function Calls/INT 2140 PCTCP IPCUSTSYS WRITE CONFIGURATION DATA.txt
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--------------------------------------------------------------------------------
Unique ID: 2140
Unique ID: 2140-sort-as-2140PC/TCP
Category: N network
Flag: n/a
--------------------------------------------------------------------------------
Expand All @@ -24,4 +24,4 @@ Notes: if less than the entire data is read or written, the next read/write
of IPCUST.SYS for backward compatibility with other software which
must read the PC/TCP configuration
SeeAlso: AH=3Fh"IPCUST",AX=4402h"IPCUST"

2 changes: 1 addition & 1 deletion source/Interrupt List/INT 21 DOS Function Calls/INT 2140 Trusted Access NBSYS SET STATE.txt
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--------------------------------------------------------------------------------
Unique ID: 2140
Unique ID: 2140-sort-as-2140TrustedAccess
Category: y security
Flag: U undocumented function
--------------------------------------------------------------------------------
Expand Down
4 changes: 2 additions & 2 deletions ...on Calls/INT 2140 Turbo Debug HARDWARE BREAKPOINTS SEND CMD TO HARDWARE BRKPNT DRIVER.txt
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--------------------------------------------------------------------------------
Unique ID: 2140
Unique ID: 2140-sort-as-2140TurboDebug
Category: G debuggers/debugging tools
Flag: n/a
--------------------------------------------------------------------------------
Expand Down Expand Up @@ -68,4 +68,4 @@ Values for Turbo Debugger address/data matching mode:
06h above or equal to test value
07h within inclusive range
08h outside specified range

3 changes: 1 addition & 2 deletions ...terrupt List/INT 21 DOS Function Calls/INT 2142 DOS 2 LSEEK SET CURRENT FILE POSITION.txt
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Expand Up @@ -26,5 +26,4 @@ Notes: for origins 01h and 02h, the pointer may be positioned before the
BUG: using this method to grow a file from zero bytes to a very large size
can corrupt the FAT in some versions of DOS; the file should first
be grown from zero to one byte and then to the desired large size
SeeAlso: AH=24h,INT 2F/AX=1228h

SeeAlso: AH=24h,AX=7142h,INT 2F/AX=1228h