Re: A83: Re: What to use

To: <assembly-83@lists.ticalc.org>
Subject: Re: A83: Re: What to use
From: "Joe Wingbermuehle" <joewing@usmo.com>
Date: Mon, 2 Nov 1998 22:31:47 -0600
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-83@lists.ticalc.org

Program write back means the code is swapped from where it is stored to
$9327 so that only one instance of the code exist. SOS allows the program to
run using up three times less memory as the built in asm feature on the
TI-83 uses (built in uses acsii to store the code and it copies the code to
free memory for execution). Program write back is only a side effect, and
usually a useful side effect at that (for such things as high scores and
settings).

Joe Wingbermuehle
http://www.usmo.com/~joewing/

-----Original Message-----
From: David Phillips <electrum@tfs.net>
To: assembly-83@lists.ticalc.org <assembly-83@lists.ticalc.org>
Date: Monday, November 02, 1998 10:07 PM
Subject: Re: A83: Re: What to use


>
>For the user, it makes running programs much easier (especially for people
>who have to get help with stuff like turning it on and graphing equations).
>For the programmer, it supports things like libraries and relocation that
>makes your life much easier.  To be complete, I pasted the feature list
from
>sos.txt.
>
>One thing I would like to know is what "program write back" means, if
>programs are executed in the same memory that they are stored in.  For
>example, on the 86 there is a special area of ram set aside just to run
>assembly programs, where programs are copied from whatever ram page they
>live at to the "_asm_exec_ram".  Program write back in this case would be
>copying the memory from the asm exec ram back to their respective ram page.
>On the 83, does this mean that the VAT is rearranged afterwards to the
state
>it was in before?
>
>(as a note, I would not consider complete program write back to be a good
>thing, because it does not allow extreme self modifying code/data)
>
>from sos.txt...
>
>Here is a list of features:
> -Basic Shell Features
>  -Allows for libraries containing commonly used routines.
>  -Automatically detects assembly langauge and BASIC programs.
>  -Assembly language programs can run with only 697 bytes of free ram.
>  -Program write back for assembly language programs.
>  -Requires very little memory.
>  -Runs all AShell and SOS programs.
> -Interface Features
>  -Allows for contrast changing.
>  -Shows program size and free memory (actual amount free for programs).
> -Navigational Features
>  -Allows up to 254 programs to be on your calculator at a time.
>  -Eight programs are visible at a time.
>  -Saves the highlighted program while in SOS.
> -Power Saving Features
>  -Allows power down from within the shell.
>  -Consumes little power while in the shell.
>  -Supports APD (Auto Power Down).
>
>
>-----Original Message-----
>From: Velex <velex@geocities.com>
>To: assembly-83@lists.ticalc.org <assembly-83@lists.ticalc.org>
>Date: Monday, November 02, 1998 9:53 PM
>Subject: Re: A83: Re: What to use
>
>
>>
>>David Phillips wrote:
>>>
>>> I personally would use a TI-83 or an emulator such as TI-8X emulator.
>;-)
>>>
>>> Not to start a flame war, but SOS seems to be the best and most
supported
>>> shell for the 83, especially considering it's still under development
and
>to
>>> my knowledge, AShell is not.  SOS will run all SOS and AShell programs,
>but
>>> AShell will not run SOS programs.  Too bad you need a shell to
>efficiently
>>> run asm on the 83...
>>>
>>
>>I have a newbie question :) : What kind of advantage does SOS give the
>>programmer/user over a normal Send(9prgmZWHTEVER line in prgmWHATEVER?
>>
>>--
>>Adam Loutzenhiser, professional serf of West Ottawa High School
>>[mailto:velex@geocities.com]  [ICQ: 17091343]
>>[http://www.geocities.com/CapitolHill/Congress/2035/index.html]
>