DOS ain't dead

Jwasm 2.0 and 64 bit real mode (Announce)

posted by swf , Canada, 12.10.2009, 22:49

Hello Japheth and all,
I see that that jwasm 2.0 production release was posted today on http://www.japheth.de/
I read the "64bit DOS sample" comments on this forum & my question is this: What can be done with this mode?
You call it 64bit real mode, what memory limitations does it have?
Using the sample code "Dos64.asm" as a model, would it be possible to write DOS programs/device drivers/command processors that uses this mode?
Could a 64bit Real Mode DOS be written that would be backwards compatable with 16bit DOS?
Best regards, Stephen William Foyle

Complete thread:

• Jwasm 2.0 and 64 bit real mode - swf, 12.10.2009, 22:49 (Announce)
  • Jwasm 2.0 and 64 bit real mode - Rugxulo, 13.10.2009, 02:31
  • Jwasm 2.0 and 64 bit real mode - Japheth, 13.10.2009, 11:08
    • Jwasm 2.0 and 64 bit real mode - Jack, 13.10.2009, 20:32
    • Jwasm 2.0 and 64 bit real mode - RayeR, 14.10.2009, 00:36
      • Jwasm 2.0 and 64 bit real mode - Japheth, 14.10.2009, 06:08
        • Jwasm 2.0 and 64 bit real mode - RayeR, 14.10.2009, 13:18
          • Jwasm 2.0 and 64 bit real mode - ecm, 14.10.2009, 14:14
            • Jwasm 2.0 and 64 bit real mode - Rugxulo, 19.10.2009, 10:44
      • Jwasm 2.0 and 64 bit real mode - Jack, 14.10.2009, 10:34
        • Jwasm 2.0 and 64 bit real mode - RayeR, 14.10.2009, 13:41
        • Jwasm 2.0 and 64 bit real mode - swf, 14.10.2009, 16:01
          • "Extended" Memory With XMGR. - Jack, 14.10.2009, 19:51
            • "Extended" Memory With XMGR. - swf, 15.10.2009, 18:57
              • "Extended" Memory With XMGR. - Jack, 15.10.2009, 19:42
        • Jwasm 2.0 and 64 bit real mode - Zyzzle, 15.10.2009, 07:35
          • Over 4-GB For UIDE/RDISK. - Jack, 15.10.2009, 09:19