HINTS-28


 Pinching more memory

   If you have, as many people do, a Z88 with 32k  internally  (RAM.0)  and  a
   128k  in  Slot 1 (RAM.1) then you can increase the memory available to you.

   Only 20k of your 32k is available, and RAM.1 loses 40k for internal use (as
   an "expanded machine").  So you only have about 100k when  you  might  have
   thought you had 160k !

   If  you  put  the 128k RAM in slot 2 instead of slot 1 you will gain 40k of
   memory.  You will not have an expanded machine and you can only  use  Basic
   programs  up to about 8k in size - no great handicap and none at all if you
   don't use Basic.

   The extra RAM available for Pipedream  applications  should  be  more  than
   welcome.


 Inexplicable - but possibly helpful.

   Recently,  I  was sending files to an EPROM but it refused to accept one of
   them.  I don't know why I did it but I re-loaded the file  into  Pipedream,
   saved it again to RAM and it went  straight  into  the  EPROM  !   I  swear
   that's  all I did.  May help you sometime, especially if, like me, you have
   cursed an EPROM, all EPROMs !

   If you have an explanation I would be glad to hear it.


 Days between dates.

   To calculate the days between dates :-

   At a new Pipedream page, proceed as follows :-

     a)  go to the Options ( <>O ) and type  N.  This will convert from text
         to numbers.  Press  ESC.
     b)  type the later of your two dates, in the form  DD.MM.YEAR in slot  
         A1 and press  ENTER.
     c)  type the earlier date, same format, in slot A2 and  ENTER.
     d)  in slot A3 type  A1-A2  and  ENTER.  You will  get  the  number  of
         days between the two dates you have entered.

   You  can  use  two  figures for the year if BOTH dates are in this century.

   Should  you  enter  one  date before 3rd September 1752 and the other after
   13th September of that year then you must subtract  11  from  your  answer.

   In  that  month  the  English-speaking  countries  went  from the Julian to
   the Gregorian calendar and the days from the 3rd to the 13th were "lost".

   If both of your dates are before or both after that period - no problem.

   Calculate  from  1.1.0000 to the current date ( and subtract 11 ! ) and you
   begin  to  realise  what a huge number is one million. The odds against any
   set of numbers in the Lottery winning the Jackpot is nearly 9 million/1 !!

 Jack Lawrie  15 Sycamore grove  Southam  Leamington Spa  CV33 0EY

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