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Conference 7.286::atarist

Title:Atari ST, TT, & Falcon
Notice:Please read note 1.0 and its replies before posting!
Moderator:FUNYET::ANDERSON
Created:Mon Apr 04 1988
Last Modified:Tue May 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1433
Total number of notes:10312

934.0. "STe Ram Upgrade" by COMICS::HOGGAN (No, I am not kidding !!!) Fri Aug 10 1990 07:52

    ste ram upgrades
    
    It can be done - 1 Mbit and 256 Kbit SIMM's can be mixed.......
    The program to enable this sits in the auto folder and, usually legal
    calls, fools the STe into thinking it had 2.5 Mb.....
    
    
T.RTitleUserPersonal
Name
DateLines
934.1SIMMS.S seen in ST user recentlyUKCSSE::RDAVIESLive long and prosperFri Aug 10 1990 12:2849
    I believe what .0 refers to is this:
    
    * STE SIMM mixer by David Hoggan
    * Lets STE configure 2.5 Megs properly
    * MUST BE FIRST IN AUTO FOLDER!
    
    * This program asssumes 2Mb in bank 0 and 0.5Mb in bank 1.
    * It has been found that the other way around doesn't work
    * - the MMU configures to a 1Mb machine.
    
    * Install your SIMMs as follows:
    *
    * (back of STE)
    *
    * |--  1meg SIMM  --|
    * |-- .5meg SIMM  --|
    * |--  1meg SIMM  --|
    * |-- .5meg SIMM  --|
    *
    * (front of STE)
    
        clr.l   -(sp)
        move.w  #32,-(sp)       Switch to super mode
        trap    #1
        addq.l  #6,sp
    
        cmp.l   #$280000,$42E   RAM <= 2.5 megs?
        ble     already         If so, nothing to do
        cmp.b   #9,$424         Is it installed properly?
        bne     already         If so, nothing to do
    
        move.l  #$280000,$42E   Set phystop
        move.l  $4F2,a0         Find reset address
        jmp     (a0)            Reset system
    
    already: move.l d0,-(sp)        Returned stack
        move.w  #32,-(sp)       Switch back to user mode
        trap    #1
        addq.l  #6,sp
        clr.w   -(sp)           Back to TOS
        trap    #1
    
    
    
    Now if someone would be willing to compile this into a .exe for me,
    then I might consider buying 2x 1Mb cards to go with my 2x .25 Mb
    cards.
    
    Richard
934.2.PRG version!COMICS::HOGGANNo, I am not kidding !!!Fri Aug 10 1990 12:5113
    richard,
    
    if you want it in .prg form, no probs! I'll upload it over the weekend
    and it should be around on monday...
    try looking in LOOKIN::DISK$USERS2:[HOGGAND.PUBLIC.ST]TWOMEG.ARC
    
    CHEERS, DAVE
    
    
    PS: Does anyone else miss ST World !?!?!?!?!
    
    
    
934.3Protection Problem !!!NCEIS1::BERENGUIERTue Aug 14 1990 06:243
    There is a protection problem to access the file on your directorie
    
    		Michel.
934.4Got mine finallyUKCSSE::RDAVIESI can&#039;t tryp for notsThu Jan 24 1991 08:449
    In the end I took the option most suited to my pocket and bought the .5
    Mb upgrade. By now it's down to 1p short of �35! (was near �60 this
    time last year). Ordered Monday, arrived yesterday, fitted last night,
    in about 9 minutes (4 mins opening up 1 min testing 4 mins closing
    down!
    
    As my kids say simple pimple!
    
    Richard
934.5pc simms = ste simms?BRUMMY::LOXTONMon Mar 04 1991 11:518
    	I've seen an advert for 1Mb simm's for the STe and P.C. 30 pounds
    e
        The advert seems to imply that both machines use the same simms.
    Does anyone out there know if this is the case.
    
    	Brian (UK)
    
    
934.6Yes, they are the samePRNSYS::LOMICKAJJeffrey A. LomickaMon Mar 04 1991 12:266
According to a recent ST Report issue, you can use EITHER 1MBx8 or 1MBx9
SIMM modules in the STe.  They recommended getting the 1MBx9, because
they were most likely to be able to be re-used in an IBM clone.  Yes,
they are the same pin-out.  I recommend getting the 1MBx8, because they
are currently about $10(US) cheaper, and I know I'm never going to trade
my STe for a clone.
934.71 meg for freeJANUS::BHARRISONCheap an&#039; NastyThu Jan 09 1992 06:2013
Hi, 
	I've just upgraded my STE to 1 meg, I found some 256K SIPPs lying around
the Lab, these are basically SIMMs with leads. I removed the leads and inserted
them into my STE. Because the little board they are on doesn't have the locking
tabs on either end I had to hold them in place with a wedge of post-it paper.
However with this done I now have 1 meg.

All I need now is to find som 1 meg simms/sipps lying around doing nothing.

Brynn._who_is_going_for_a_home_done_hard_drive_next