Hi Frantisek, DOSEMU experts, Aitor, > Just when I tried pure autoexec.bat file from latest dosemu-devel, > I bump to problem with loading display.exe. Line 14 in autoexec.bat > is 'rem loadhi display con=(vga,437,2)', but when uncommented, then > give me two errors: > > 1) 'FreeCom version 0.84-pre2 XMS_Swap [Aug 28 2006 00:29:00]' which > is in dosemu-freedos-1.0-bin.tgz tarball referenced at: > > http://prdownloads.sourceforge.net/dosemu/dosemu-freedos-1.0-bin.tgz?download > > not know 'loadhi' command; only 'lh' may be used.
There is a stand-alone tool loadhi.com, the built-in command can be used either by the name LH or LOADHIGH. Maybe the tarball of dosemu wanted to use loadhi to not depend on command.com version. > 2) display-0.13b report error: > > FreeDOS DISPLAY ver. 0.13b > Syntax error (006) Unknown hardware device name > > when I retain its parameters. But when I use 'ega' instead of 'vga', > then all is fine. I not know, when it is display... That might be a bug in display: Reading the sources of an older version, VGA and EGA should both be accepted. See also my reply to your FreeDOS mailing list question: You can say EGA here, it works the same for fonts. Only the amount of graphics memory and the set of font sizes differ. But at least for older versions of DISPLAY, the setting "EGA" meant to autodetect exactly those :-) > ... documentation ... 'vga' is allowed) or dosemu problem (e.g. > it emulate only EGA card and not VGA). No, EGA and VGA are treated pretty much the same by DISPLAY, it only treats CGA in a different way. Also, DOSEMU supports VGA quite well, also for loadable fonts as far as I remember ;-) In any case, that error message is about option syntax. You would get a different error if no EGA/VGA card was found by DISPLAY. > According this, and as this autoexec.bat file has in its head that > it should be for DOSEMU + FreeDOS, maybe this change should be better: > > --- dist/autoexec.bat.old 2014-04-21 00:38:46.273663431 +0200 > +++ dist/autoexec.bat 2014-04-21 00:50:12.053661641 +0200 > @@ -11,7 +11,7 @@ > lredir d: linux\fs%DOSDRIVE_D% > :nodrived > rem uncomment to load another bitmap font > -rem loadhi display con=(vga,437,2) > +rem lh display con=(ega,437,2) I would even say (EGA,,1) to use less RAM and be less strict. > rem mode con codepage prepare=((850) z:\cpi\ega.cpx) > rem mode con codepage select 850 > rem chcp 850 Not sure how relevant the last CHCP step is, it probably is duplicating the explicit setting by MODE in some aspects... > and also in freecom help file: > > --- dosemu/freedos/help/index.en.old 2003-09-28 05:55:27.000000000 +0200 > +++ dosemu/freedos/help/index.en 2014-04-21 01:27:35.012479480 +0200 > @@ -16,7 +16,7 @@ > help ... you just called this one > join mount a drive letter into a directory > lib librarian for OBJ files, creating a LIB file > -loadhi loads a program into the upper memory > +lh loads a program into the upper memory Not sure where this file comes from. Note that you can type "?" as a command to get a list of commands and e.g. LH /? to get help about LH and so on. The HTML based HELP command has a page about LH aka LOADHIGH but none about LOADHI... I guess INDEX.EN is a file provided by DOSEMU, given that it also explains the DOSEMU-specific LREDIR. > mem displays the amount of DOS memory used > more displays a text file one screen at a time > nansi nansi.sys, an enhanced MS-DOS console driver > @@ -80,9 +80,9 @@ > vgaoff only for 'root'!! switch vga mode off (when on console) > vgaon only for 'root'!! switch on console vga graphics mode > NOTE: vgaoff/on may be dangerous on console, but > - do nothing important on X. > - > + do nothing important on X. > lredir set/display redirection of a Linux directory to a DOS drive > + or set redirection to network virtual printer. > unix take over Linux ENV variables, execute DOS command from > a given ENV variable, execute Linux commands ... > dosdbg set/display debug(Log) features/flags > > One thing which I not know: some FreeDOS utilities have newer version now > (compared with those in dosemu-freedos-1.0-bin.tgz), but is possible use > them with dosemu? > Maybe Bart patched some key components (FreeDOS kernel, FreeCOMM etc.) > and newer versions will not be functional? Knows someone? Maybe the problem is just that the tarball of FreeDOS things for DOSEMU has not been updated after FreeDOS 1.0 got released: It would surprise me if anything in this tarball is a special DOSEMU version. DOSEMU can run random software for DOS quite well. However, there are some tools which ONLY work in DOSEMU, such as for example LREDIR. If those are a part of dosemu-freedos-1.0-bin.tgz, then they are probably taken from a package of things-for-DOSEMU that may have been updated separately. Another example are HIMEM and EMM386: Instead of using those for real hardware, you can and should use the "magic" DOSEMU versions where the emulator provides most of the functionality itself. That way, it needs less (slow) hardware simulation to provide the same experience. My current DOSEMU installation contains the following special DOSEMU DOS tools and drivers: cdrom, ems, emufs, aspi and dumpconf.sys and isemu, fossil, mgarrot and generic.com: The latter is also symlinked to xmode, vgaon, vgaoff, unix, ugetcwd, uchdir, system, speed, lredir, exitemu, emumouse, eject, ecpuon, ecpuoff, dpmi, dosdbg, cmdline, booton, bootoff and blaster.com as calling generic.com by different filenames lets you invoke different "magic" things, often for setup. Interestingly, those files are all less than 1 kilobyte "big" each. They all work only in (any, not just Free-) DOS and only in DOSEMU. Regards, Eric ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ Dosemu-devel mailing list Dosemu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dosemu-devel
