Re: [Freedos-devel] FreeDOS Interim Build T2303

Hi Bernd, > On Mar 6, 2023, at 10:19 AM, Bernd Boeckmann via Freedos-devel > wrote: > > Hi Jerome, > >> However, it should be tested that it creates a single 2gb FAT-16 partition >> on real hardware. It will also need tested from other booted install media >> under other circumstances as

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

> There is an existing standard definition for re-entrant code, and > multiple tools and frameworks support it. > > https://en.wikipedia.org/wiki/Reentrancy_(computing) My terminology is compliant with that definition. A couple of quotes from what you provided: "A computer program or

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

> After thinking a bit about this, I'm fairly certain that FreeDOS is > NOT (sufficiantly) SDA compliant. > ... > > some of the problems above might be handled by placing CLI/STI at > proper locations. some are more difficult. > > but I'm pretty certain that FreeDOS hasn't a lot of CLI/STI's >

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

> The SDA of MS seems fairly well documented in RBIL, but I'd be > pretty surprised if all DOS clones (particularly Virtual Machines > like DOSBox) are compliant so it may not be a good idea to pursue. > I suspect FreeDOS would be pretty close to compliant, but I'm not even sure > about that.

Re: [Freedos-devel] 386MAX

On Mon, Mar 6, 2023 at 7:45 PM Bret Johnson wrote: > > Or just take some of the important stuff that Bob Smith and Qualitas > discovered about Windows/GEMMIS/EMM386 and import it into something like > JEMM. There's some knowledge embedded in 386MAX about what MS did that you > will never

Re: [Freedos-devel] FreeDOS Interim Build T2303

Hi, On Tue, Mar 7, 2023 at 5:59 AM wrote: > > > On Mar 6, 2023, at 10:19 AM, Bernd Boeckmann via Freedos-devel > > wrote: > > > > I noticed edlin32 2.21 is not working because of missing dos4gw.exe, but > > perhaps that is already obsoleted by the 2.22 release? A quick fix is copying

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

On Tue, Mar 7, 2023 at 7:13 AM Bret Johnson wrote: > > The way I'm trying to getting around that problem is to monitor the InDOS > and Critical Error flags and some other things (like INT 28h). But I'm > sometimes getting false readings, especially in some Virtual Machines. For > example, some

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

Hi, On Tue, Mar 7, 2023 at 8:50 AM Bret Johnson wrote: > > That model sort of illustrates the concept, though. Both Windows and Linux > want to manage the _entire_ machine's > resources while they are running and one OS must give give up that control to > let the other OS take over. > I'm

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

On Tue, 7 Mar 2023, Rugxulo wrote: Maybe you mean something like this? "Apple’s MS-DOS Compatible 486 Macintosh from 1995!" -- LGR "The Power Macintosh 6100/66 DOS Compatible is a fascinating machine. For $2,199 in 1995 you got MS-DOS and Mac OS in one computer, thanks to an Intel 486 and a

Re: [Freedos-devel] DOS Swappable Data (SDA) Area

Hi again, On Tue, Mar 7, 2023 at 12:41 PM Rugxulo wrote: > > On Tue, Mar 7, 2023 at 8:50 AM Bret Johnson wrote: > > > > That model sort of illustrates the concept, though. Both Windows and Linux > > want to manage the _entire_ machine's > > resources while they are running and one OS must

[Freedos-devel] Open Watcom v2 DOS installer is abysmally slow in FreeDOS

Hi, Over a month ago, I opened an issue on the FreeDOS project on GitLab about the Open Watcom v2 installer being extremely slow in FreeDOS. It takes an hour or more on FreeDOS, while the same installation completes on MS-DOS 7.1 within just a few minutes. I've reproduced this in VM instances,

Re: [Freedos-devel] UEFI, virtual BIOS and virtual hardware - was: Goo gle Summer of Code?

You might want to take a look at the VMusic project by javispedro . It's an open-soure extension pack for VirtualBox that enhances sound emulation support, notably adding high quality OPL3 FM synthesis emulation and MPU-401 emulation with MIDI

Re: [Freedos-devel] Open Watcom v2 DOS installer is abysmally slow in FreeDOS

On 3/7/2023 4:54 PM, Volkert via Freedos-devel wrote: The last time I installed OW was on one of my physical laptops, which are currently in storage, so I can't easily test this right now, and I am pretty sure that I installed the v1.9 from openwatcom.org

Re: [Freedos-devel] Open Watcom v2 DOS installer is abysmally slow in FreeDOS

On Wed, Mar 8, 2023 at 2:02 AM Ralf Quint wrote: > Well, I just download both v1.9 and the latest 2.0 and the later is 1.75x > as big as v1.9 (143MB vs 81MB), so there must be some more than trivial > difference between the installers... > I was referring specifically to the DOS installer code

Re: [Freedos-devel] Open Watcom v2 DOS installer is abysmally slow in FreeDOS

On 3/7/2023 4:11 PM, Volkert via Freedos-devel wrote: Hi, Over a month ago, I opened an issue on the FreeDOS project on GitLab about the Open Watcom v2 installer being extremely slow in FreeDOS. It takes an hour or more on FreeDOS, while the same installation completes on MS-DOS 7.1 within

Re: [Freedos-devel] Open Watcom v2 DOS installer is abysmally slow in FreeDOS

On Wed, Mar 8, 2023 at 1:40 AM Ralf Quint wrote: > > Well, I know some folks will hate me for that (what else is new) but there > is no MS-DOS 7.1. It's the bootup DOS system of Windows 95SR2 and up. > That's just getting pedantic about things. Whatever you prefer to call it, the "bootup DOS

Re: [Freedos-devel] Open Watcom v2 DOS installer is abysmally slow in FreeDOS

BTW, Ladislav did some performance testing on a Pentium 4 last October. He gives hints on how to make FD a bit faster, though still about 50% performance of MS-DOS in a best case scenario. Namely, Ladislav suggests (on a 512MB RAM machine) using UIDE w/a 160MB cache, and LBAcache with 16843KB