🚀 go-pugleaf

Mark Kovarski <kovarski@zooid.guild.org> writes:
> 
> I have the following it of code which was given to me. Aside from the "few"    
> errors, the person claims that this will cause a message:                      
>                                                                                
> ON BOARD PARITY ERROR                                                          
> mov al,74                                                                      
> out 43,al                                                                      
> mov al,ff                                                                      
> out 41,al                                                                      
> mov al,ff                                                                      
> out 41,al                                                                      
> ret                                                                            
No way this will work. The refresh rate is set to 18.2 per second; since
there are 512 rows to refresh, this means every bit in your computer's
DRAM is refreshed every 20 seconds! There are DRAMS that survive 15ms
without being refreshed, but a 70ns DRAM can't take it. Try about 10ms
(a value of about 80, I guess), this will probably work. But there are
some PCs that need special refresh rates when beeping or accessing the
floppy drive! Sounds strange, I know, but I've encountered it... and
wrote a small TSR that intercepts those actions, retores the refresh rate,
does the action and restores the fast value. Interested? -> mail.

Chris
--
          "Think for yourself, and always carry a light bulb."
                                           - Bob Dylan 1965
---------------------------------------------------------------------
Christian Blum                   Universitaet des Saarlandes, Germany
Friedrich-Ebert-Str. 50          chbl@stud.uni-sb.de
W-6685 Heiligenwald              chbl@sbustd.rz.uni-sb.de
Germany                          Tel (+49) (0) 6821 67476