storm@cs.mcgill.ca (Marc WANDSCHNEIDER) (04/23/91)
I have been seeing numbers like 655k free conventional memory with people with DOS 3.3, QEMM, and a pile of TSRs. *HOW* is this done...? Is it standard, and are there any possible side effects from the way (however it's done) the conventional memory is increased? (ie, this is not an invitation to write and blather about how much memory you really have...) With DOS 5.00, you can get up to 625k free or so, but it doesn't expand the 640k barrier.... Any ideas...? ./*- -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ storm@cs.mcgill.ca McGill University It's 11pm, do YOU Marc Wandschneider Montreal, CANADA know what time it is? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dvc@cbnewsb.cb.att.com (david.a.vancleef) (04/23/91)
In article <1991Apr22.172252.13351@cs.mcgill.ca> storm@cs.mcgill.ca (Marc WANDSCHNEIDER) writes: > > >I have been seeing numbers like 655k free conventional memory with people >with DOS 3.3, QEMM, and a pile of TSRs. > >*HOW* is this done...? Is it standard, and are there any possible side >effects from the way (however it's done) the conventional memory is increased? Use QEMM, loading all drivers high. Then load the vidram driver high, and activate it, to enable the A000 segment for dos use. You give up the use of EGA/VGA graphics doing this, but with DOS 4.01, everything loaded high, and vidram on, I get over 640k available memory. (Useful if you want to be able to run the DOS version of COMPRESS using 16 bit compression.) ------- David A. Van Cleef AT&T Bell Laboratories internet: dvc@hrmso.att.com Red Hill Facility, Middletown, NJ uucp-land: ...!att!hrmso!dvc +1 908 615 4906
ralphs@seattleu.edu (Ralph Sims) (04/23/91)
storm@cs.mcgill.ca (Marc WANDSCHNEIDER) writes: > I have been seeing numbers like 655k free conventional memory with people > with DOS 3.3, QEMM, and a pile of TSRs. > *HOW* is this done...? Is it standard, and are there any possible side > effects from the way (however it's done) the conventional memory is increased On a 386 with a CGA monitor and a small handful of RAM (a couple of megs, maybe), you can get 736K before the DOS monster takes over. I use 25 files, 5 of which are loaded in config.sys, and the rest in high memory. I use COMPAQ DOS 3.31 and 4DOS 3.03 and swap 4DOS operating environment out to high memory, also, leaving a 256-byte DOS kernel low (I have renamed 4DOS.COM to COMMAND.COM. The cache (PC-CACHE) is also loaded high. All in all, I have about 689K free to play with. Part of DOS's environment also goes high. Here's the setup REM CONFIG.SYS REM load a things for DOS--the rest go to high memory files=5 buffers=5 REM dynamically allocate stacks as needed stacks=0,0 lastdrive=i REM fire up the ex{ten,pan}ded memory driver DEVICE=E:\DV\QEMM386.SYS RAM ROM MAPS=5 REM 4DOS's shell setup with 2K of environment loaded hi and swapping to EMS shell=c:\4dos.com /e:2048U /U /a:2048 /s:b /p device=e:\dv\loadhi.sys c:\keystack.sys REM AUTOEXEC.BAT @echo off REM halcyon runs under DESQview and uses 4DOS302a... REM your mileage may vary REM command.com == 4dos.com set comspec=c:\command.com REM set the path (what else?) with setpath.bat REM prompt $p$g REM set waffle=e:\waffle\system\static REM set dszlog=e:\waffle\admin\dsz.log REM path=c:\;d:\dos;e:\waffle\bin;d:\tools;[continued on next line] REM d:\pctools;d:\norton;d:\xtg;e:\dv;d:\qedit;e:\dv\rbcomm;d:\perl REM setdos /V0 /M1 REM alias /r c:\aliases call setpath loadhi files 25 loadhi pc-cache /sizexp=1000K REM fdread allows weird floppy configurations, as well REM as offering a boot-thru for A: drive fdread REM turn off those damned scroll-lock and numlock keys lockoff REM speed up the SIPP's a bit with a little refresh speedstr REM load the comm driver (maybe can loadhi, but don't trust this version) bnu /L1=19200 /Z3 /T=128 /R=512 /M- REM fire up DESQview e: cd\dv del *.txt xdv > With DOS 5.00, you can get up to 625k free or so, but it doesn't expand the > 640k barrier.... The DOS applications usually don't but some will take whatever low memory they can grab. -- halcyon!ralphs@seattleu.edu The 23:00 News and Mail Service - +1 206 292 9048 - Seattle, WA USA +++ A Waffle Iron, Model 1.64 +++