Try disabling ems/xms, use loadfix, see if it happens as well if you disable sound.

nihao

What is your cpu? I've experienced loads of illegal writes on k6-2s

Are you mounting the image file directly, or using a virtual drive/actual drive?

Try disabling ems/xms, use loadfix, see if it happens as well if you disable sound.

I'll try what happens if I disable them.

EDIT: I tried disable XMS/EMS and use loadfix and disable sounds, looks nothing happens , still get illegal write/read errors.

nihao

What is your cpu? I've experienced loads of illegal writes on k6-2s

Are you mounting the image file directly, or using a virtual drive/actual drive?

Nihao, too. 😜

My CPU is AMD Athlon 64 X2 3600+(with default clock), and try with other CPUs like Intel Pentium D 805(with default clock) and Pentium 4 @ 1.66GHz.
Both have those "Illegal write/read" errors.

I tried my legal copy(actual drive) & mounting CD image(made by my copy) directly.
But they are both happens the illegal write/read sh*t. 🙁

It looks like DOSBox's bugs...maybe.

Sorry, post again.

I tried all of Builds of DOSBox v0.7.2
Whatever I do, both has this problem. 🙁

After watched that "battle demo show", will cause illegal write/read operation when start new game, load city savefile, or load battle savefile.
the whole game can't play! Must quit game and run again.

I upload a flash movie (.swf made by Wink 2.0) about how to cause this problem.

http://w15.easy-share.com/6695121.html
(Warning! It's BIG! 9.68MB!! And wait a long time when someone downloaded.)

What am I doing at that movie :

I start the game, wait 90 seconds at main menu -> the "battle demo show" loads -> I pressed a key to break it -> the second opening movie loads and I pressed a key to break it again -> go to the main menu -> I choose "CONTINUE"(load the save during the battle map)then get blank screen!

DOSBOX debugger said a lot of "Illegal write/read from/on <address> , CS:IP <CS address> : <IP address>" and "CPU : Illegal/Unhandled opcode 63" messages.

It's should DOSBOX bug, because in MS-DOS 6.x/7.x , that runs very fine and no any problem like that. 🙁

PlayerLin wrote:

It's should DOSBOX bug, because in MS-DOS 6.x/7.x , that runs very fine and no any problem like that. 🙁

Don't forget that sometimes a bug does not cause problems in the original DOS but in DOSbox it does, not because DOSbox is doing it wrong, but detects something gone wrong in a way normal DOS does not (and cannot). It is very well possible DOSbox is not the source of the problem.

JAL

Sorry about bump this old topic up.

I know it should not DOSBox's fault after I did some tests and researches...
This problem still happens when I installed MS-DOS 6.22 and play the game with "Virtual PC", "VMWare" and some others VMs...they all caused crashes(DOS/4GW page fault error)

I have no idea where is going wrong...

I have other questions:
1. Is the newer CPU/System cause the unknown illegal write/read due it doesn't support/removed some old features used in DOS game or DOS Extender?

2.I remembered my old 2 system :
[1] : AMD80486 DX2-66 , 16MB RAM , ET4000 with 4MB display RAM, MS-DOS 6.22 & Windows 95's real DOS mode.
[2] : P III - 600EB, 128/256MB RAM , WinFAST S325 (RIVA TNT2) 32MB, Windows 98 and its real DOS mode(MS-DOS 7.0).
And they're not any problems at all.
NO ****ing crashes on those systems if there were not other problem happens. Of course, they were not happens this problem.

But I tested my all newer system(Pentium 4, Pentium D 805, and currently I using AMD 3600+), they will happened this problem in DOSBox and crashed in VMs.

I still no idea what the HELL happens... 🙁

I understand this porblem should not be fixable due it may not DOSBox problem. But this function was WORKS in old...very old systems(sorry, the 2 "worked" system are DEAD now, so I can't test with them again.😖 ) and DOSBox isn't fully works on DOS/4GW. Just a useless complain... *get shot* 😵

But I tested my all newer system(Pentium 4, Pentium D 805, and currently I using AMD 3600+), they will happened this problem in DOSBox and crashed in VMs.

So it works when you run it natively on your P3 system, but not on a P4 one?

So it works when you run it natively on your P3 system, but not on a P4 one?

Ok, I have been got messed myself up... 😵

If my memories isn't mess up now.
I'm sure I was tested this function worked in my dead 486 and P3.
But I can't get a old system to confirm it's REALLY true or not.
I hope I can get one.
(I'm sorry I can't 100% sure. 😖 )

All P4 and newer systems(tested by myself) will cause crashed(DOS4GW page fault) even play with PURE MS-DOS 6.22 in VMs.

*Totally messed myself up*

Maybe you/somebody can check out if it works say only for 386 and 486,
but crashes for pentiums or so. Chances are then to get this working somehow.

Maybe you/somebody can check out if it works say only for 386 and 486,
but crashes for pentiums or so. Chances are then to get this working somehow.

I do a test(maybe useless), because of my friend's report.
(I still can't found a or more older systems to test...... 🙁 )

I installed VMWare Workstation v6.0.4 (Build 93057).
Host system :
AMD A64 X2 3600+ @ 2.0GHz(My friend's : AMD A64 3600+)
MSI NX8600GT, 1GB RAM(DDR2 667, 512MB*2 dual channel mode)
Windows XP SP3 (T-Chinese)
Guest system :
256MB Memory, T-Chinese Windows 98 SE with fully installation.

I running the game in Windows 98's MS-DOS mode.
(Tried MS-DOS 6.22, but it still crashed.)

It doesn't crash after I get "demo" run out normally and after the second "opening movie", then I choose "New game" and it runs fine.
(I didn't break off the demo by press any key, if I did, it will still crash like my first post said. [But it will crash randomly, maybe happens on you save/load , maybe happens when you move a unit/selected command/go to shop or somethings, whatever, it randomly.])
The whole game works fine.
ONLY GET CRASH ON EXIT GAME TO DOS.(screenshot in Attachment)

If someone want to test this game, I will sent the link to the game CD-image via PM and introduce how to install this game and play.
(agh...I don't know if it abuse the forum rule but this game is Abandonware...)

PlayerLin wrote:

All P4 and newer systems(tested by myself) will cause crashed(DOS4GW page fault) even play with PURE MS-DOS 6.22 in VMs.

I'm not really sure I understand. Are you playing the games booting MS-DOS 6.22, or are you playing the games in a VM (like VMWare) that runs MS-DOS. In the latter case, it is almost impossible the machine CPU causes different behaviour. You should try to boot into MS-DOS directly, then run the games.

JAL

I'm not try boot to MS-DOS 6.22...because my sound card doesn't support DOS and my HD drives are NTFS in my current system.
Only runs MS-DOS 6.22 in VMs.

But maybe it worth a try. 😐
(Damn... I should leave my old HDD with FAT16/32... 🙁 )

PlayerLin wrote:

Only runs MS-DOS 6.22 in VMs.

If you run MS-DOS in a VM, than it sees the hardware as the VM is configured to show. As I said, it really doesn't matter then on what hardware the VM is running.

JAL