DOS ain't dead - polling

polling (Announce)

posted by ecm , Düsseldorf, Germany, 01.06.2011, 18:49

> Int 16h,ah=01 is more simple to call than int
> 31h, ax=0300h, that's the main advantage I see.
>
> To be sure, I just verified that calling int 2F, ax=1680h thru DPMI Int
> 31h, ax=0300h indeed works as expected with NTVDM.

Ah, so shouldn't 2F.1680 via 31.0300 be preferred then? At least 2F.1680 is properly defined to idle, while NTVDM's implementation extends 16.01 somehow to make it idle.

Aside from preference, that means it should always be fine to call 2F.1680 via 31.0300 if direct 2F.1680 isn't supported in protected mode?

(I verified that NTVDM indeed doesn't pretend to support 2F.1680 in protected mode. Calling that service leaves AL unchanged.)

---
l

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Complete thread:

mTCP Open Source release - mbbrutman, 27.05.2011, 23:47 (Announce)
- mTCP GPL - ecm, 27.05.2011, 23:58
  - GPLv3 - mbbrutman, 28.05.2011, 00:20
    - GPL: either version 3 of the license, or any later version - ecm, 28.05.2011, 00:55
      - GPL: either version 3 of the license, or any later version - mbbrutman, 28.05.2011, 01:09
        GPL: either version 3 of the license, or any later version - ecm, 28.05.2011, 01:18
        GPL: either version 3 of the license, or any later version - mbbrutman, 28.05.2011, 01:25
        download, compile, ... - ecm, 28.05.2011, 01:30
        GPL: either version 3 of the license, or any later version - marcov, 30.05.2011, 09:37
        GPL: either version 3 of the license, or any later version - mbbrutman, 30.05.2011, 15:32
        What does the GPL allow? - ecm, 30.05.2011, 16:08
        What does the GPL allow? - mbbrutman, 30.05.2011, 16:30
        GPL something - ecm, 30.05.2011, 17:08
        GPL something - mbbrutman, 30.05.2011, 18:05
        theoretical licensing problems and such - ecm, 30.05.2011, 18:28
        licensing again... executables - ecm, 30.05.2011, 22:34
        licensing again... executables - mbbrutman, 31.05.2011, 03:33
        licensing again... executables - ecm, 31.05.2011, 13:59
        licensing again... executables - mbbrutman, 01.06.2011, 01:16
        licensing again... executables - ecm, 01.06.2011, 01:53
        licensing again... executables - mbbrutman, 01.06.2011, 02:17
        licensing again... executables - ecm, 01.06.2011, 15:49
        What does the GPL allow? - Rugxulo, 30.05.2011, 18:14
        mTCP in DOSEMU; Linux kernel developers' GPLv2-only reasons - ecm, 30.05.2011, 22:38
        What does the GPL allow? - marcov, 30.05.2011, 22:49
        What does the GPL allow? - mbbrutman, 31.05.2011, 03:41
        What does the GPL allow? - mbbrutman, 31.05.2011, 04:18
        What does the GPL allow? - Japheth, 30.05.2011, 18:47
        Gift trolls and other curiosities - ecm, 30.05.2011, 19:20
        Gift trolls and other curiosities - mbbrutman, 30.05.2011, 19:54
        editing - ecm, 30.05.2011, 20:03
        What does the GPL allow? - marcov, 30.05.2011, 22:38
        What does the GPL allow? - marcov, 30.05.2011, 22:37
        GPL: either version 3 of the license, or any later version - marcov, 30.05.2011, 22:35
        GPL: either version 3 of the license, or any later version - mbbrutman, 30.05.2011, 22:56
        GPL: either version 3 of the license, or any later version - marcov, 02.06.2011, 16:10
        GPL: either version 3 of the license, or any later version - mbbrutman, 03.06.2011, 04:12
        GPL: either version 3 of the license, or any later version - marcov, 03.06.2011, 13:36
        GPL: either version 3 of the license, or any later version - Rugxulo, 03.06.2011, 16:45
- mTCP and SwsVPkt - Japheth, 31.05.2011, 09:03
  - mTCP and SwsVPkt - mbbrutman, 01.06.2011, 03:11
    - mTCP and SwsVPkt - Japheth, 01.06.2011, 13:14
      - mTCP and SwsVPkt - mbbrutman, 01.06.2011, 15:04
    - polling - ecm, 01.06.2011, 16:07
      - polling - Japheth, 01.06.2011, 17:12
        polling - ecm, 01.06.2011, 17:27
        polling - Japheth, 01.06.2011, 17:50
        polling - ecm, 01.06.2011, 17:55
        polling - Japheth, 01.06.2011, 18:39
        polling - ecm, 01.06.2011, 18:49
        polling - Rugxulo, 02.06.2011, 00:37
        polling - ecm, 02.06.2011, 00:52
        polling - Japheth, 02.06.2011, 05:42
        polling - mbbrutman, 04.06.2011, 04:13
        polling - ecm, 04.06.2011, 06:50
        polling - Arjay, 04.06.2011, 10:46
        polling - mbbrutman, 16.07.2011, 22:09
        polling - Ninho, 17.07.2011, 12:59
        polling - mbbrutman, 17.07.2011, 23:05
        polling - Ninho, 18.07.2011, 11:22
        polling - mbbrutman, 18.07.2011, 16:05
        polling - Ninho, 18.07.2011, 17:28
        IGNORE! no text, posting error - Ninho, 18.07.2011, 17:30
        polling - mbbrutman, 18.07.2011, 17:41
        polling - ecm, 21.08.2011, 16:28