DOS ain't dead - SB Live DOS emulation - my fight with SERR# to NMI routing

SB Live DOS emulation - my fight with SERR# to NMI routing (Developers)

posted by RayeR , CZ, 20.05.2008, 02:17

> Maybe DMACHK from UMBPCI package?

Well, it may be good start point. I tried DMACHK with various memory managers and OSes DOS 6.22, 7.1. Results can be divided to 2 groups.

1) DOS safe mode or himem.sys / himemx.exe only, regardless DOS version always reported:

ISA-DMA-Checker for UMBPCI V1.13, (c)1999-2004 by Heiko Nocon, Uwe Sieber http://www.uwe-sieber.de North-Bridge: Vendor: 8086 Device: 29C0 South-Bridge: Vendor: 8086 Device: 27B8 C000-C3FF : write protected C400-C7FF : write protected C800-CBFF : write protected CC00-CFFF : write protected D000-D3FF : write protected D400-D7FF : write protected D800-DBFF : write protected DC00-DFFF : write protected E000-E3FF : write protected E400-E7FF : write protected E800-EBFF : write protected EC00-EFFF : write protected

2) Use of himem.sys + emm386 or himem.sys + umbpci.sys or jemmex.exe resulted always in hang during the test.

ISA-DMA-Checker for UMBPCI V1.13, (c)1999-2004 by Heiko Nocon, Uwe Sieber http://www.uwe-sieber.de North-Bridge: Vendor: 8086 Device: 29C0 South-Bridge: Vendor: 8086 Device: 27B8 EMM386 is loaded C000-C3FF : write protected C400-C7FF : write protected C800-CBFF : write protected CC00-CFFF : write protected D000-D3FF : read/write ok, ISA-DMA (hangs here)

In case EMM386 under DOS 7.1 it hanged at
E000-E3FF : read/write ok, ISA-DMA (hangs here)

in case there was only HIMEM.SYS + UMBPCI.SYS it wasn't displayed "EMM386 is loaded" message but hanged in same case. Unfortunatelly DMACHK doesn't report what happened. No CTRL+C/CTRL+ALT+DEL just hardware reset helps.

Then I tried some DOS sound test programs but I didn't heard sfx in any case. Programs hanged or played nothing. I also tested dstest.exe which is a part of HXDOS tests. Result with /v /p options, terminated normally but no sound:

Sound size=12A00 Format: channels=1, samples=44100, bits=16, bytespersec=88200 DirectSoundCreate()=0 IDirectSound:SetCooperativeLevel()=0 IDirectSound:CreateSoundBuffer()=0 IDirectSoundBuffer:SetFormat()=0 IDirectSoundBuffer:Lock(0, 5622, ...)=80070057 IDirectSoundBuffer:Release()=0 IDirectSound:Release()=0

With /v option it hanged but can be breaked by CRTL+BREAK

Sound size=12A00 Format: channels=1, samples=44100, bits=16, bytespersec=88200 DirectSoundCreate()=0 IDirectSound:SetCooperativeLevel()=0 IDirectSound:CreateSoundBuffer()=0 IDirectSoundBuffer:Play()=0 ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562] ..IDirectSoundBuffer:GetCurrentPosition()=0 [ 0 562]

It seems that sound buffer position is not updating, no samples are clocked out and so it locks in endless loop, nevet request to load another part of buffer...

---
DOS gives me freedom to unlimited HW access.

Post reply

Complete thread:

SB Live DOS emulation - my fight with SERR# to NMI routing - RayeR, 19.05.2008, 02:02 (Developers)
- SB Live DOS emulation - my fight with SERR# to NMI routing - Japheth, 19.05.2008, 09:55
  - SB Live DOS emulation - my fight with SERR# to NMI routing - RayeR, 19.05.2008, 12:07
    - SB Live DOS emulation - my fight with SERR# to NMI routing - Japheth, 19.05.2008, 13:03
      - SB Live DOS emulation - my fight with SERR# to NMI routing - RayeR, 19.05.2008, 14:44
        SB Live DOS emulation - my fight with SERR# to NMI routing - rr, 19.05.2008, 14:47
        SB Live DOS emulation - my fight with SERR# to NMI routing - RayeR, 20.05.2008, 02:17
        SB Live DOS emulation - my fight with SERR# to NMI routing - rr, 20.05.2008, 09:35
        SB Live DOS emulation - my fight with SERR# to NMI routing - RayeR, 20.05.2008, 10:32
        SB Live DOS emulation - my fight with SERR# to NMI routing - rr, 20.05.2008, 11:24
        SB Live DOS emulation - my fight with SERR# to NMI routing - Japheth, 20.05.2008, 09:44
        SB Live DOS emulation - my fight with SERR# to NMI routing - RayeR, 20.05.2008, 10:39
        SB Live DOS emulation - my fight with SERR# to NMI routing - Japheth, 20.05.2008, 19:37
        SB Live DOS emulation - my fight with SERR# to NMI routing - Japheth, 19.05.2008, 15:39
  - SB Live DOS emulation - my fight with SERR# to NMI routing - Rugxulo, 19.05.2008, 23:20
- SERR# to NMI routing enabler utility - RayeR, 20.05.2008, 02:22
  - SERR# to NMI routing enabler utility - rr, 20.05.2008, 09:33
    - SERR# to NMI routing enabler utility - RayeR, 20.05.2008, 10:43
      - SERR# to NMI routing enabler utility - rr, 20.05.2008, 11:23
- SBEMU - DOS386, 31.05.2008, 03:31
  - SBEMU - Japheth, 31.05.2008, 07:53
  - SBEMU - RayeR, 31.05.2008, 14:14
    - SBEMU | slow emulators | Sb Live and MPXplay - DOS386, 04.06.2008, 02:43
      - SBEMU | slow emulators | Sb Live and MPXplay - RayeR, 04.06.2008, 02:50