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1990-05-27
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4KB
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117 lines
Program title: Memory set
Program version: 3.20
program filename: MEMSET.PRG
Assocated files: MEMSET.DOC
Program coded in: 68000 Machine code.
Package: HiSoft Devpac ST V2.20
Coding by: Mark Nias of The Albanian sausage corp.
Coded on: Atari 520STFM with 2.5Mb.
Possable users: Programmers with 1mb or more.
Description:
What this program does is allow you to set how much memory your ST
thinks it has. Also allows you to perform a COLD reset when you
press the reset button (normally this just does a warm reset).
How to use MEMSET:
MEMSET is best placed in the auto folder but it doesn't matter where you
put it in line, though it's best put first because changing the memory
setting causes a reset (See "How it's done"), so you don't want to run
the auto programs twice.
After you have run MEMSET (either from GEM or when it's AUTO run from the
AUTO folder), you will be presented with a menu selection screen....
Memory setter (C) Mark Nias
Version 3.2 16/03/92
Press...
1.....0512k
2.....1024k
3.....1536k
4.....2048k
5.....2560k
6.....3072k
7.....3584k
8.....4096k
C.....Install COLD reset (reset memory)
W.....Normal reset (Keep memory setting)
You may then press the key representing the memory setting you wish to
change your ST to (1 to 8), but don't select a setting that is more memory
than you actually have installed on your machine!(See "Precautions")
When you have selected the setting you want, your Atari will then reset and
re-boot. When MEMSET re-appears (If it was in the AUTO folder),
Then press either C or W.
Pressing "C" will install "COLD reset". When this is installed it will make
your ST perform a COLD reset when you next press the reset button.(see "why
it was written").
Pressing "W" will De-install "COLD reset". making the reset button act
as it would normally do (warm reset).
Timeout:
When MEMSET is run a time-out is started so if you don't press any key
then it will use the default settings.
It will not change the memory setting but will INSTALL "COLD reset".
or if cold reset is already installed it will DE-INSTALL "COLD reset".
A short message will then be displayed to tell you what it has done.
Note:
MEMSET does not need to be run after you have changed the memory setting
and it has reset. Cold reset uses NO memory when installed.
Why it was written:
This program was origionaly written by myself to set my machine to 512k,
to run a program that would only run on a 512k machine. MEMSET is also
usfull for the game RAILROAD (only runs on machines up to 1024k)
After this I thought of other applications ie testing demos to see if they
run properly on a 512k machine.
COLD reset was included because of reseting the memory after I had changed
it and was a way of keeping viruses at bay,(Because viruses remain after a
WARM reset but not a COLD reset).
How it's done
Setting memory:
This is achieved by moving the required memory value into a System variable
and then reseting (as it only comes into action at boot-up).
COLD reset:
This is achieved by clearing out two sytem variables, so that when you
next reset the memory is re-initilised, wiping out every single byte of your
memory in your machine!
Precautions:
Ram Disks:
Run MEMSET before you set a ramdisk. It is also best to DE-INSTALL
COLD reset as this will of course wipe the ram disk if your ST should
reset either by crashing or you pressing the reset button.
Setting memory to MORE than what you have:
This will cause your ST to go nuts basically, the screen will go
black, then you get streeky lines and then you get a screen full of
Bombs scrolling up your screen. You will then have to switch off
your ST because it's impossable to get out of it .
This program is Shareware so if you use it, like it or feel generous
then send a mere £5.00 to the address below.
You can give this program to your friends but this text file MUST be
copied with the program.
If you have any comments/suggestions then please write to
Mark Nias
28 Sandringham RD.
Macclesfield
Cheshire
SK10 1QB
England
16/03/1992
03:48am (God is that the time! Phew I had better go to bed!)