DOS ain't dead

DOS prompt from external programm (Developers)

posted by tom , Germany (West), 30.09.2020, 17:16

> I have created my own text editor from which I can program and compile
> programs, I have inserted a function to start a DOS prompt leaving the
> editor in the background, I get this with the system function
> ("c:\command.com"); but this uses a lot of memory because I have 2
> "command.com" active in addition to the editor, is it possible to jump to
> the command.com already loaded in memory without loading another one?

This is not possible.

OTOH working this way should use 2 times ~3 kb for 2 copies of (FreeDOS) command, + the space for your editor which is most likely MUCH larger.

see the output of MEM /D to check this.

Complete thread:

• DOS prompt from external programm - GizMo79, 29.09.2020, 22:21 (Developers)
  • DOS prompt from external programm - tom, 30.09.2020, 17:16
    • DOS prompt from external programm - tom, 30.09.2020, 17:23
  • DOS prompt from external programm - tkchia, 30.09.2020, 18:19
    • DOS prompt from external programm - Rugxulo, 01.10.2020, 00:44
      • DOS prompt from external programm - tkchia, 01.10.2020, 18:20
      • DOS prompt from external programm - GizMo79, 04.10.2020, 12:10
        • DOS prompt from external programm - Rugxulo, 09.10.2020, 07:15
      • DOS prompt from external programm - GizMo79, 04.10.2020, 12:16
        • DOS prompt from external programm - Rugxulo, 09.10.2020, 07:16
  • DOS prompt from external programmg - DosWorld, 10.10.2020, 13:17