Run applications in (Linux) console

excitoon commented 1 year ago

Is your feature request related to a problem? Please describe.

Hey. I'd like to have possibility to run console applications without any windows and having their output (properly) redirected to host machine.

What you want

Hey. I'd like to have possibility to run console applications without any windows and having their output (properly) redirected to host machine.

Describe alternatives you've considered

I considered making dosbox-y, but I really do not want to.

Additional information

No response

Have you checked that no similar feature request(s) exist?

[X] I have searched and didn't find any similar feature request.

Code of Conduct & Contributing Guidelines

[X] I agree to follow the code of conduct and the contributing guidelines.

Torinde commented 1 year ago

Yes, that would be useful also for Windows and other host platforms. Related Console features:

integrate in Windows Terminal microsoft/terminal/issues/3558 :

If DOSBox can be run as a strictly text-mode application, it can be hosted in Terminal perfectly fine. Can at least the DOS shell run in text mode? Will the video window be spawned outside Terminal?
you can start DOS applications from yours favorite console file manager: Far, DN2, cmd, or directly from ConEmu
DOSBox-X as wrapper around DOS executables, receiving input from and returning output to Win32 console https://github.com/joncampbell123/dosbox-x/issues/1184#issuecomment-513803516
1838 https://github.com/joncampbell123/dosbox-x/issues/1184#issuecomment-524695061
suggestions as you type (for commands, parameters, files/folders, …) and other ideas from Yori
clipboard copy text from DOSbox -> paste in Windows together with the letters and background color (or even animated GIF for ANSI/4DOS blinking letters) - and vice versa (colored/blinking letters/background from Windows -> pasted in DOSbox)
Scroll (e.g. go back to see text that flew upwards too fast - instead of |more) - via the scroll bar that is host controllable
Find (both on-screen and in-history/back-scroll)
settings equivalent to cmd.exe Properties\Options, Font, Layout, Colors, Terminal

excitoon commented 1 year ago

@Torinde Yeah, all of these are related and many can be solved simply by redirecting output. I guess I'll make this one as I need DEBUG.COM output so much.

excitoon commented 1 year ago

This is a stack of junk, however, look at 0x21/0x02 and 0x21/0x09 implementations:

        case 0x09:      /* Write string to STDOUT */
            {
                uint8_t c;uint16_t n=1;
                PhysPt buf=SegPhys(ds)+reg_dx;
                std::string str="";
                if (mem_readb(buf)=='T')
                    while ((c=mem_readb(buf++))!='$') {
                        str+=std::string(1, c);
                        if (str.length()>42) break;
                    }
                buf=SegPhys(ds)+reg_dx;
                reqwin=(str.length()==42&&!strncmp(str.c_str(),"This program cannot be run in DOS mode.",39))||(!strncmp(str.c_str(),"This program requires Microsoft Windows.",40))||(str.length()==38&&!strncmp(str.c_str(),"This program must be run under Win32",36));
                if (!winautorun||!reqwin||control->SecureMode()||!startquiet)
                    while ((c=mem_readb(buf++))!='$')
                        DOS_WriteFile(STDOUT,&c,&n);
                reg_al=c;
            }

And single characters skip all these checks:

        case 0x02:      /* Write character to STDOUT */
            {
                uint8_t c=reg_dl;uint16_t n=1;
                DOS_WriteFile(STDOUT,&c,&n);
                //Not in the official specs, but happens nonetheless. (last written character)
                reg_al=(c==9)?0x20:c; //strangely, tab conversion to spaces is reflected here
            }
            break;

excitoon commented 1 year ago

@joncampbell123 FYI

$ git add src/debug/debug_gui.cpp
The following paths are ignored by one of your .gitignore files:
src/debug
hint: Use -f if you really want to add them.
hint: Turn this message off by running
hint: "git config advice.addIgnoredFile false"

excitoon commented 1 year ago

Feel free to make pull requests to my branch. :)

joncampbell123 / dosbox-x