1) The RoBoard/DMP devs often make announcements on the djgpp mailing lists
and bttr forum.
2) iirc, the vortex86ex is like a cross between a 486dx/586/mmx proc w/o
cmov. The cwsdpmi code may be doing something with the fpu/mmx regs that
the ex can't handle. There's also watchdog timer too iirc.
3) The other thing about the ex is that it uses ddr3 ram. If the 16 bit
code is hooked up to the ram refresher, that might be causing your issues.
On Friday, May 16, 2014, Dinosaur <j...@tubejoiners.com> wrote:
> Hi All
>
> Long time user of FreeDos on CFC in Industrial environment.
> Long time user of FreeBasic in the same environment.
> Retired and experimenting with a new device.
>
> Have recently purchased an 86Duino in the form of EduCake.
> Basically an x86 with breadboard on top.
> Fairly new product using a Vortex86Ex processor.
> The support is minimal, cause there are still only a few users.
> It is being sprouted as Dos. FreeDos, Windows & Linux compatible.
> They supply an image for the SD card, which boots as intended.
>
> I am having difficulty running programs in this environment.
> Basically:
> if I load CWSDPMI and run say Edlin32.exe it works (or appears to)
> If I dont load CWSDPMI and run Edlin16.exe it works (or appears to)
>
> Loading CWSDPMI and running a FreeBasic (Dos) compiled two line program it
> generates an exception.
> Division by Zero.
> Print "Hello World"
> End
>
> Compiling this program with PB7 (16 bit Dos) and running it,
> doesn't create any exceptions but no message printed.
>
> Now I have dealt with this processor before on Industrial CPU boards, and
> have not had this problem.
> At this stage I should note that there is no monitor facility on this
> device, so the serial port becomes
> the monitor with:
> MODE com4:9600,N,8,1,P
> ctty com4
>
> Autoexec.bat (the relevant bits)
> @echo off
> SET dosdir=C:\FDOS
> set PATH=%dosdir%\bin
> set NLSPATH=%dosdir%\NLS
> set HELPPATH=%dosdir%\HELP
> set temp=%dosdir%\temp
> set tmp=%dosdir%\temp
>
> SET autofile=C:\autoexec.bat
> alias reboot=fdapm warmboot
> alias halt=fdapm poweroff
>
> MODE com4:9600,N,8,1,P
> ctty com4
> C:\FDos\Bin\DosLFN.com
> C:\FDos\Bin\cwsdpmi.exe
> cd\
> rem C:\FDos\Bin\ctmouse
> C:\FDos\Bin\LBACache
> C:\FDOS\Bin\SHARE.com
>
>
> FDConfig.sys
> device=c:\FDos\Bin\himemx.exe
> dos=high,umb
> LASTDRIVE=Z
> switches=/N
> break=off
> dos=high,umb
> dosdata=umb
> files=60
> rem stacks=16,256
>
> Bootup detail.
> DOSLFN 0.41 (haftmann#software & jmh 12/2011): loaded consuming 11776
> bytes.
> LBAcache disk read cache for XMS + 386, E. Auer
> <e...@coli.uni-sb.de<javascript:;>
> >
> 2001-2006
> License: GPL 2. Up to 8 harddisks, 2 floppy, LBA / CHS. Version:
> 07apr2008.
> Detecting harddisks:
> disk 0x80 heads=0255 sectors=0063 [done]
> [No floppy cache: no change lines]
> XMS allocated: 2.00 MB, driver size with tables and stack: 7427 bytes.
> SHARE installed.
>
> C:\>
> The exception in 32bit protected mode.
> C:\>test
> Exiting due to signal SIGFPE
> Division by Zero at eip=0000401d, x87 status=0000
> eax=00000001 ebx=00230880 ecx=00000001 edx=00000000 esi=000202e0
> edi=00230cdc
> ebp=00000000 esp=00230820 program=C:\TEST.EXE
> cs: sel=00a7 base=00400000 limit=0023ffff
> ds: sel=00af base=00400000 limit=0023ffff
> es: sel=00af base=00400000 limit=0023ffff
> fs: sel=00bf base=00000000 limit=0010ffff
> gs: sel=00bf base=00000000 limit=0010ffff
> ss: sel=00af base=00400000 limit=0023ffff
> App stack: [00230e38..00030e3c] Exceptn stack: [00030d58..0002ee18]
>
> Can sks give me some direction here please.
>
>
>
>
>
> -----
> Regards
> Dinosaur
> --
> View this message in context:
> http://freedos.10956.n7.nabble.com/FreeDos-on-86Duino-tp20567.html
> Sent from the FreeDOS - User mailing list archive at Nabble.com.
>
>
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