The Museum of HP Calculators
HP Forum Archive 06
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|Downloading games on souped-up HP 48G with 256K |
Message #1 Posted by Paul Brogger on 10 Oct 2001, 7:17 p.m.
I've got two HP 48G's that I've upgraded to 256K, utilizing techniques found on the Web. They seem to behave correctly. After a total memory reset, when I enter the Left-shift\MEMORY\MEM command, I get 258912 (which seems close enough). Under Left-shift\LIBRARY\PORTS it shows a ":0:" folder, which is empty.
HOWEVER, I seem to be having trouble getting downloaded games to work. (I'm trying to interest my son in games for his HP 48G+.) I've got a serial cable, and have tried several games from the amazing collection at hpcalc.org . They seem to download correctly (using Kermit), but either hang at execution, or give an "Insufficient Memory" error.
I've got two questions:
1. Is there something more I need to do to configure the increased memory in my 48G to make it work for big programs?
2. Would someone recommend one or two games or programs that simply OUGHT to work, so I can at least establish a minimal functional baseline before experimenting with some of the more esoteric stuff (like 89K 3-D Pac-Man look-alikes)?
-- Paul B.
|Re: Downloading games on souped-up HP 48G with 256K |
Message #2 Posted by Ron Ross on 11 Oct 2001, 8:31 a.m.,
in response to message #1 by Paul Brogger
You might want to check your ROM version of your 48G's. I seem to recall the very first ones (K ROM ver.) could not be expanded, end of story due to no ability in their code to address more than 32K.
Also have you tried treating your memory like an expansion card. You have to use a Merge command (I am talking totally off the cuff here), I added a memory card to a 48GX and had to use these commands to activate the cards.
I think you should have two or three ports active with this much RAM, though I though I do believe Port 0 might just be able to see 256K, normally a port can only see 128K ram at most. I suspect I have told you nothing you do not already Know, but thought I would toss these ideas out in case you may have overlooked this information.
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