cmcmanis@sun.uucp (Chuck McManis) (07/02/86)
Well, I hooked up my Alegra 512K memory expansion board in all of about 2 minutes, booted my 1.2 disks and sure enough Workbench came up with 803390 bytes free. (Whopee!) This looks to be a really nice implmentation of an expansion board. It doesn't pass the buss through so it will have to be on the "end" of anything else you stick on there. Upgrading it from .5M to 2M appears to be really simple (if you have 16 1 MB Drams in your hand) and I will be doing that just as soon the 1Mb prices drop to the "256K replacement cost" (ie 4 X 256K price or $12) I have found out the hard way that you have a really tough time doing 640 x 400 animation with out some extra RAM. The primary purpose of the note is to say that a.) You can get a nice 512K memory board now (Jul 1) relatively inexpensively ($299 until Jul 31st, 379 afterwards) which is upgradable to 2 M. (You could do it now but it would be expensive) b) It can make your life a lot easier as far as development goes. Unfortunately many programs get either a wee bit confused or don't run period when there is extra RAM around. The answer is to boot 1.1 kickstart and don't tell the system about the RAM. Non optimal to be sure. --Chuck McManis mostplaces!sun!cmcmanis Standard Disclaimer : These are my opinions and do not represent the views of Sun.
kim@mips.UUCP (07/04/86)
[ Friends come and go; enemies accumulate. ] A couple of questions for Chuck@sun: > The primary purpose of the note is to say that a.) You can get a nice > 512K memory board now (Jul 1) relatively inexpensively ($299 until > Jul 31st, 379 afterwards) which is upgradable to 2 M. Did the Alegra folks extend the introductory period? > Unfortunately many programs get > either a wee bit confused or don't run period when there is extra > RAM around. The answer is to boot 1.1 kickstart and don't tell the > system about the RAM. Non optimal to be sure. Would you mind "starting the list" ... what programs get, ah, confused? Thanks, /kim -- UUCP: {decvax,ucbvax,ihnp4}!decwrl!mips!kim DDD: 408-720-1700 x231 USPS: MIPS Computer Systems Inc, 930 E. Arques Av, Sunnyvale, CA 94086 CIS: 76535,25
mitsu@well.UUCP (Mitsuharu Hadeishi) (07/07/86)
There is a program available called NoExpanMem which temporarily allocates all non-CHIP ram so you can load programs wholly into CHIP ram. When you run the program again, it deallocates all the ram it allocated so you can continue to use the full memory of your Amiga. It's available on several Bay Area BBS's, including BBS-JC (415) 961-7250 and FAUG BBS (415) 595-2479. Please pass this program around. -Mitsu (mitsu@well.UUCP) (I do not know the author of this program.)