Re: [Freedos-user] Using nansi.sys vs ansi.sys under 4dos
Problems with nansi and 4dos solved: The problem of getting colorized prompts and directory listings under 4dos has been completely solved with nansi 4.0d. Additionally, I now get black letters on a bright white background with nansi 4.0d using the patch below: c:>debug nansi.sys > -e 6a2 > 0...:06A2 7F.ff > -w > Writing 1345 bytes. > -q -- Larry Alkoff N2LA - Austin TX Using Thunderbird on Linux - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Using nansi.sys vs ansi.sys under 4dos
Hello Eric and thank you for your attention. The debug patch below worked perfectly and my dosemu has a nice white background all over the screen. Goodbye ansi. Gratefully, Larry Eric Auer wrote: > Hi Larry, > > black on white is an interesting problem. You cannot get a bright > background in normal hardware setting - you would get a blinking > one instead. The ansi escape sequence selects "reverse blinking" > or "black on white blinking", because NORMAL background colors are > not bright... The "bold" bit is bright foreground, and the "blink" > bit can be either blinking foreground or bright background - this > depends on your hardware setting, but most people use "blinking". > > Looks like dosemu cannot do blinking foreground so it does bright? > Anyway, when I do "prompt $e[0;7;5m" then I do indeed get black on > white in dosemu, but only for text. It seems that our command.com > does not set empty space on the screen to the selected colors... > When you do "cls" and then do "ver", you see that the rest of the > screen is black. I think this is quite normal even with MS ANSI. > > Another interesting problem is that when the screen scrolls, the > color which "scrolls in" from the bottom is black on grey instead > of black on white. This is what creates the effect you describe. > >> However what happens is that the c:> has the correct bright white >> correct but the rest of the screen is a dirtyish grey. When I type >> characters after c:> all the chars on that line have a nice white >> background but the untyped part of every line is that dirty grey. > > Actually NANSI does this deliberately. I guess the author did not > want the scrolling up fill the screen with blinking eventually: > > Function "get_blank_attrib" is described as: > > ; Determine new attribute and character for a new blank region. > ; Use current attribute, just disallow blink and underline. > ; (Pretty strange way to do it. Might want to disallow rev vid, too.) > > It contains this line in the file nansi.asm: > > and ah, 7fh ; disallow blink > > It also limits the attribute to "either 1 or 7" (underline or > normal, all other values suppressed) if you are in monochrome. > > I suggest to comment out that line :-). What should we do about > the monochrome case, by the way? Can that stay as it is now? > > Larry, could you comment out the abovementioned 7fh line and > recompile your NANSI file? That will need ASM (ArrowASM, is > part of our distro), exe2bin (also in our distro) and tlink > (from Turbo C 2, freeware, maybe replaceable with VAL...). If > this is too complex for you, let me know, then I can compile > a fresh file for you here and send it to you. > > Eric > > > PS: You can also easily patch / fix your binary file as follows: > c:>debug nansi.sys > -e 6a2 > 0...:06A2 7F.ff > -w > Writing 1345 bytes. > -q > > -- Larry Alkoff N2LA - Austin TX Using Thunderbird on Linux - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
[Freedos-user] Using nansi.sys vs ansi.sys under 4dos
Hi Larry, black on white is an interesting problem. You cannot get a bright background in normal hardware setting - you would get a blinking one instead. The ansi escape sequence selects "reverse blinking" or "black on white blinking", because NORMAL background colors are not bright... The "bold" bit is bright foreground, and the "blink" bit can be either blinking foreground or bright background - this depends on your hardware setting, but most people use "blinking". Looks like dosemu cannot do blinking foreground so it does bright? Anyway, when I do "prompt $e[0;7;5m" then I do indeed get black on white in dosemu, but only for text. It seems that our command.com does not set empty space on the screen to the selected colors... When you do "cls" and then do "ver", you see that the rest of the screen is black. I think this is quite normal even with MS ANSI. Another interesting problem is that when the screen scrolls, the color which "scrolls in" from the bottom is black on grey instead of black on white. This is what creates the effect you describe. > However what happens is that the c:> has the correct bright white > correct but the rest of the screen is a dirtyish grey. When I type > characters after c:> all the chars on that line have a nice white > background but the untyped part of every line is that dirty grey. Actually NANSI does this deliberately. I guess the author did not want the scrolling up fill the screen with blinking eventually: Function "get_blank_attrib" is described as: ; Determine new attribute and character for a new blank region. ; Use current attribute, just disallow blink and underline. ; (Pretty strange way to do it. Might want to disallow rev vid, too.) It contains this line in the file nansi.asm: and ah, 7fh ; disallow blink It also limits the attribute to "either 1 or 7" (underline or normal, all other values suppressed) if you are in monochrome. I suggest to comment out that line :-). What should we do about the monochrome case, by the way? Can that stay as it is now? Larry, could you comment out the abovementioned 7fh line and recompile your NANSI file? That will need ASM (ArrowASM, is part of our distro), exe2bin (also in our distro) and tlink (from Turbo C 2, freeware, maybe replaceable with VAL...). If this is too complex for you, let me know, then I can compile a fresh file for you here and send it to you. Eric PS: You can also easily patch / fix your binary file as follows: c:>debug nansi.sys -e 6a2 0...:06A2 7F.ff -w Writing 1345 bytes. -q - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
[Freedos-user] Using nansi.sys vs ansi.sys under 4dos
I would like to use a dosemu screen with black letters on a bright white background. I run dosemu 1.2.2.8 under Kubuntu linux (Feisty Fawn version) using 4dos as my command processor. This allows me to use my old favorite dos programs like SuperCalc, WordStar, Q&A and 4dos. Personally I date back to early CP/M days. Under nansi.sys 4.0d I have the following problem in 4dos. My color directive is in 4dos.ini has the line color black on bright white to set the screen foreground black and background bright white. However what happens is that the c:> has the correct bright white correct but the rest of the screen is a dirtyish grey. When I type characters after c:> all the chars on that line have a nice white background but the untyped part of every line is that dirty grey. If I use ansi.sys from Windows 98SE, the screen is properly displayed with a bright white background. However I do not wish to use the proprietary ansi.sys. Could anyone give me any information on getting a nice bright white background screen using either nansi.sys or nnansi.sys? Larry -- Larry Alkoff N2LA - Austin TX Using Thunderbird on Linux - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
