A83: Re: Mem alloc...

To: <assembly-83@lists.ticalc.org>
Subject: A83: Re: Mem alloc...
From: "Harper Maddox" <gte172i@prism.gatech.edu>
Date: Wed, 15 Dec 1999 09:37:27 -0500
References: <GBDEKHCBBBJPAAAA@mailcity.com>
Reply-To: assembly-83@lists.ticalc.org


you really dont alloc memory in assembly, since technically you can write to
anything you want.
However you can access a large amount of free memory that will not cause
problems.
Probably the most popular of these areas is SAVESCREEN, the apd buffer,
which is a 768 byte area of usable memory.

If this does not satisfy your request you can use the 128 byte TEXT_MEM or
the somewhere around 240 byte STAT_RAM.  And if you still need more then you
can keep the data resident within your program in the form of a ".defs xxxx"
after a label and access the data as follows


program:
 ld hl,FreeMemory        ; pointer to free 1000 byte array

 ld a,(hl)               ; get the data from the first line in the array
 ....
 ret


FreeMemory:
 .defs 1000

----- Original Message -----
From: yhean <yhean@mailcity.com>
To: Ti83 Help List <assembly-83@lists.ticalc.org>
Sent: Wednesday, December 15, 1999 7:24 AM
Subject: A83: Mem alloc...


>
>
> What's the way to alloc xxxx bytes, and where is the pointer to these
bytes?
>
> Thanks,
> Jean
>
>
>
> LYCOShop is now open. On your mark, get set, SHOP!!!
> http://shop.lycos.com/
>

Follow-Ups:

Re: A83: Re: Mem alloc...

From: Scott Dial <wrath@calc.org>

References:

A83: Mem alloc...

From: "yhean" <yhean@mailcity.com>