DOS ain't dead

How to reset a new computer? (Users)

posted by Japheth , Germany (South), 18.04.2020, 20:01

> Shall I rather use some other command line?

I also have problems rebooting my ryzen machine when jemmex is loaded. So I prefer using UMBPCI & HimemX these days.

It doesn't need to be a bug in jemmex. If v86-mode is on, the BIOS will behave differently; for example, it then has to call VDS interrupt 4Bh on various occasions ( which is implemented by the EMM ). On my ryzen, the BIOS, in v86-mode, somehow manages to "corrupt" the beginning of the XBDA, resulting in the first byte of the XBDA ( which is supposed to contain the XBDA's size in kB ) to become zero.

Another machine ( GIGABYTE motherboard with AMI BIOS ) causes a crash in v86-mode simply because it starts to use "unreal" mode as soon as an USB memory stick is to be read.

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MS-DOS forever!

Complete thread:

• How to reset a new computer? - Laaca, 18.04.2020, 19:04
  • How to reset a new computer? - Japheth, 18.04.2020, 20:01
    • How to reset a new computer? - RayeR, 18.04.2020, 22:10
    • How to reset a new computer? - tom, 19.04.2020, 18:06
      • How to reset a new computer? - bretjohn, 21.04.2020, 22:05
        • How to reset a new computer? - tom, 21.04.2020, 23:32
          • How to reset a new computer? - Japheth, 22.04.2020, 06:31
    • How to reset a new computer? - bretjohn, 21.04.2020, 20:08
  • How to reset a new computer? - Japheth, 22.04.2020, 06:36
    • How to reset a new computer? - Laaca, 22.04.2020, 19:28