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???
01/16/07 15:14
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#130892 - Misunderstanding ?
Responding to: ???'s previous message
I interpret "playing-fast-and-loose" correctly

I would interpret it as "Does not bother to use the facilities provided by the OS or the BIOS to access the hardware.". MS-DOS might consider this "inconsiderate" but won't bother otherwise. Any real operating system will block any attempt at doing so.

Why would a MS-DOS (read: single user single task) program be different from a '51 program in this respect?

Because even an almost-OS (actually, it's an extended disk/keyboard/display driver) like MS-DOS provides rudimentary services (and the bios, too) to access the hardware. On a '51, you're not playing fast and loose since there is no other way of accessing the hardware than directly.

List of 25 messages in thread
TopicAuthorDate
doubt about ports            01/01/70 00:00      
   and one more doubt            01/01/70 00:00      
   Programming the PC            01/01/70 00:00      
   Off Topic            01/01/70 00:00      
      Wrong forum            01/01/70 00:00      
   Win ports            01/01/70 00:00      
      Bad practice...            01/01/70 00:00      
         Bad practice            01/01/70 00:00      
            some thoughts            01/01/70 00:00      
   Do not hard-code adresses!            01/01/70 00:00      
   You need to tell us more ...            01/01/70 00:00      
      MS-DOS            01/01/70 00:00      
         why?            01/01/70 00:00      
            Misunderstanding ?            01/01/70 00:00      
               Not quite so            01/01/70 00:00      
               a parallel in '51            01/01/70 00:00      
            Sharing            01/01/70 00:00      
         OK, the sad facts            01/01/70 00:00      
         MS-DOS will allow and do anything the PC can do            01/01/70 00:00      
            ...and the reason is ...            01/01/70 00:00      
               If Windows were truly multi-user/multitasking ...            01/01/70 00:00      
                  it's broken            01/01/70 00:00      
               So much for the "Good Old Days"            01/01/70 00:00      
                  Yes, and the ones that worked, worked really well            01/01/70 00:00      
                     The Right one            01/01/70 00:00      

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