Path: utzoo!attcan!uunet!cbmvax!carolyn
From: carolyn@cbmvax.UUCP (Carolyn Scheppner CATS)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Chip RAM
Message-ID: <4283@cbmvax.UUCP>
Date: 19 Jul 88 16:44:12 GMT
References: <3150@polya.Stanford.EDU> <6428@well.UUCP> <2242@sugar.UUCP> <735@applix.UUCP> <11717@agate.BERKELEY.EDU> <2327@antique.UUCP> <737@applix.UUCP> <2333@antique.UUCP> <4790@killer.UUCP> <4266@cbmvax.UUCP> <4270@cbmvax.UUCP> <4811@killer.UUCP>
Reply-To: carolyn@cbmvax.UUCP (Carolyn Scheppner CATS)
Organization: Commodore Technology, West Chester, PA
Lines: 63

In article <4811@killer.UUCP> ltf@killer.UUCP (Lance Franklin) writes:
>
>[RE TypeOfMem() function] ...                  I just now checked in the
>Developer's Ref Guide and found it, evidently a part of the exec.library...
>could you describe the function for me?  Or tell me where I can find a
>description?

TypeOfMem(address)
            a1

Described in the 1.2 Exec autodocs (as in the 1.2 Native Developer Update
disk set available from CATS for $20 US [+$5 shipping outside US]).

>I was looking to create a quick and easy function that would check a passed
>address (and size) of a structure and pass me back the original address (if
>the structure is already in CHIP ram, or allocate the space in CHIP ram, copy
>the structure into it and pass me back its address, keeping track of the
>CHIP ram allocated so I can free it at the program's exit.  TypeOfMem() sounds
>like just what I need to test the structures present location.

I thought I saw a couple of those come by here just recently.
Here's what I would try, off the top of my head (ie non-tested :-)

   - set up a null RememberKey (intuition thing)

     struct Remember *greallockey = NULL; /* Graphics realloc key */
     struct Remember **grkeyaddr = &greallockey;  /* we need addr of key */

   - pass your function address,size,and grkeyaddr

     maybeAlloc(addr,size,keyaddr)
     ULONG addr, size;
     struct Remember **keyaddr;
        {
        ULONG newaddr;

        if(TypeOfMem(addr) & MEMF_CHIP)  return(addr);
        else if(newaddr=AllocRemember(keyaddr,size,MEMF_CHIP))
           {
           CopyMem(addr,newaddr,size);
           return(newaddr);
           }
        else return(0);
        }

   - In your cleanup (after you are sure you are not displaying any
     of those images anymore). 

        if(greallockey)  FreeRemember(grkeyaddr,TRUE);


>> Oh I'm a numberjack and I'm OK, I code all night and I work all day...
>I Code B-Trees, I wear a dress, suspenders and a bra...
>On Wednesdays I go Shopping, buy cokes and more twinkies!

I like it.
-- 
==========================================================================
  Carolyn Scheppner -- CATS  Commodore Amiga Technical Support
  PHONE 215-431-9180   UUCP  ...{uunet,allegra,rutgers}!cbmvax!carolyn 

 I am fully operational and all of my circuits are funcTiOnINg pperrf...
==========================================================================