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From: mks@cbmvax.UUCP (Michael Sinz - CATS)
Newsgroups: comp.sys.amiga
Subject: Re: fastmemfirst
Message-ID: <7497@cbmvax.UUCP>
Date: 1 Aug 89 13:23:39 GMT
References: <11353@mcdphx.phx.mcd.mot.com>
Reply-To: mks@cbmvax.UUCP (Michael Sinz - CATS)
Distribution: na
Organization: Commodore Technology, West Chester, PA
Lines: 35

In article <11353@mcdphx.phx.mcd.mot.com> stan@teroach.phx.mcd.mot.com (Stan Fisher) writes:
>
>Recently I believe I read on the net that:  
>
>   When using the Super Agnes chip, therefore elimating the C00000 RAM,
>it is no longer necessary to run fastmemfirst in the startup-sequence, in
>order to conserve Chip RAM.  Was I dreaming this?   Was it the Super Agnes
          ^^^^^^^^^^^^^^^^^
FastMemFirst was there to move the $C00000 RAM after any other MEMF_FAST type
memory.  This was done since $C00000 RAM was on the same bus as the MEMF_CHIP
and thus runs slower when HI-RES OVERSCAN 16-Colour screens are used.

>alone that changed this? or was it the use of SetCPU 1.5 too?  Seems to me
>irregardless of Super/old Agnes, a program requesting "either type of RAM"
>could be given chip, when fast is available.  Don't I still want to run
>fastmemfirst?  And does Mergemem really merge 16bit and 32bit memory pools
>into contiguous space? 

Because there is no $C00000 "fast" memory on a 1-Meg chip-ram system, there is
no more need to do the FastMemFirst.  It has nothing to do with SetCPU or
any other program.

MergeMem will merge the memory pools if you have an autoconfig RAM board in
the system along with the 2620.  The 2620 memory will get used first since
it autoconfigs first.

-- 

/----------------------------------------------------------------------\
|      /// Michael Sinz -- CATS/Amiga Software/Support Engineer        |
|     ///  PHONE 215-431-9422  UUCP ( uunet | rutgers ) !cbmvax!mks    |
|    ///                                                               |
|\\\///      ...and then, just as all was in kaos, someone said:       |
| \XX/     "Let there be ... what was that!? ... An Amiga? ... light!" |
\----------------------------------------------------------------------/